▐▛███▜▌ Claude Code v2.1.193 ▝▜█████▛▘ Opus 4.8 · Claude Team ▘▘ ▝▝ ~/.superset/worktrees/Arius7/pricing-view ❯ /effort ⎿ Set effort level to ultracode (this session only): xhigh + dynamic workflow orchestration ❯ 1. in the overview tab, we need a new section "Storage Accounts" that lists all the stroage accounts. When adding a new storage account (/repos/create > Add new account) there should be a dropdown to select the region (sourced from the pricingcalculator options). an Unknown/Not in the list option should be there. Mark the mandatory fields red. In the list of all storage accounts, when i click on one I should be edit account key and location. It should be a flyout (like the properties page no the /repos/files page). in the database, ensure that account name | key | location are together. The locatino will be the programmatic name eg. northeurope/westeurope 2. on the repos/files properties page, remove the 'account key', the account key is not a property of the repository (it cannot change independenly of the account), reflect that structure also in the database. Rename 'Encryption passphrase' to 'Passphrase' 3. on the rpeos/add screen mark the mandatory fields red. Friendly alias should not be manadatory; if unset it s just the name of the container. for the local path, woudl it be possible to see a [...] and then i browse the local filesystem to seelect the folder? 1. make a shared component 'CostCalculator'. it is region aware and owns the current pricing json. keep the restorecostcalculator - that is specifically for the restore costs. i want another cost calculator that feeds this component (exposed via a simple Mediator CostQuery '/Users/wouter/Downloads/Arius.Web codebase access.zip') i think all the data it s needs is in the json. It should replace the 'Stored size by tier' component ⏺ I'll start by orienting myself to the codebase structure, then launch parallel exploration. Let me first understand what I'm working with. Searched for 1 pattern, listed 1 directory, ran 1 shell command (ctrl+o to expand) ⏺ This is the Arius7 codebase (a .NET app). The web UI is in src/Arius.Web. Let me look deeper at the web project and the referenced zip. Searched for 1 pattern, ran 1 shell command (ctrl+o to expand) ⏺ Key insight: Arius.Web is an Angular frontend that talks to the .NET Arius.Api (which uses the Mediator/CQRS pattern — CostQuery). The zip is a design handoff for the statistics tier costs (Group 2). Let me extract it and read the conventions. Searched for 1 pattern, read 1 file, ran 2 shell commands (ctrl+o to expand) ⏺ This is a clear picture now. The architecture: - Arius.Web = Angular frontend (overview, repos, wizards, drawer/flyout, statistics tab) - Arius.Api / Arius.Core = .NET backend with Mediator/CQRS (CostQuery), pricing.json + RestoreCostCalculator under Features/RestoreCommand/ - The zip is a design handoff redesigning the "Stored size by tier" section with per-tier cost (Group 2's target) Let me read the core reference files directly while launching parallel exploration of the rest. Read 2 files (ctrl+o to expand) ⏺ Now let me read pricing.json and locate the Mediator/CQRS infrastructure and the DB model for repositories/storage accounts. Read 1 file, ran 2 shell commands (ctrl+o to expand) ⏺ Shell glob issue (zsh expanding *.cs). Let me quote and use absolute paths. Note: pricing.json is currently single-region (West Europe, EUR) — relevant to the "region aware" requirement. Ran 1 shell command (ctrl+o to expand) ⏺ Excellent — I now have a clear backend map. Key files identified: AppData/AppDatabase.cs + Records.cs (DB), AccountEndpoints.cs, RepositoryEndpoints.cs, BrowseEndpoints.cs, StatisticsQuery.cs, and the Features/*Query Mediator pattern. pricing.json is single-region today (West Europe, EUR) — so "region aware" is a real structural gap. Now I'll launch a comprehensive parallel exploration via a Workflow of read-only Explore agents (plan-mode safe), each returning structured findings on one area. ⏺ Workflow(Parallel read-only exploration of Arius7 for the storage-accounts + cost-calculator plan) ⎿  /workflows to view dynamic workflow runs ⏺ The workflow is running. While it explores, let me read the linchpin backend files directly so I can verify the agents' findings against ground truth — the DB schema and the Mediator/Statistics pattern drive the hardest design decisions. Read 2 files (ctrl+o to expand) ⏺ The DB schema is very informative. Critical finding for Group 1 #2: account_key is already on the storage_accounts table (not on repositories — repos only have passphrase). So the DB is already structured correctly; the "remove account key from repo" change is mostly UI/DTO. And there's no UpdateAccount method and no location column yet — both needed for Group 1 #1. Let me read the account/repository endpoints and the Mediator/Statistics pattern to ground the plan while the workflow runs. Read 3 files (ctrl+o to expand) ⏺ The Mediator pattern is clear: it uses the source-generated Mediator package (ICommand / ICommandHandler<,>), with per-repository handlers registered in AddArius(...) with accountName/containerName baked in. Notably, AccountEndpoints has only GET + POST — no update endpoint, confirming the "edit account key + location" flyout needs new backend support. Let me read the DTOs and the browse endpoint (the local-path picker feasibility is a real open question) while the workflow finishes. Read 2 files (ctrl+o to expand) ⏺ Two more key findings: - BrowseEndpoints is misnamed — it's snapshot/stats browsing, not filesystem browsing. There is no local-directory browse endpoint, so Group 1 #3's [...] folder picker needs either a new server-side endpoint (only viable if the API runs on the user's machine) or a native browser approach. Deployment model matters here. - The API DTOs are already clean: RepositoryDto/UpdateRepositoryRequest carry no account key — so Group 1 #2 ("remove account key, reflect in DB") is essentially already true in the backend; the account key lives on the account. The change is mainly frontend + adding account update support. Let me read the frontend conventions doc and the create wizard (the "Add new account" flow is central) while the workflow finishes the rest. Read 2 files (ctrl+o to expand) ⏺ Dynamic workflow "Parallel read-only exploration of Arius7 for the storage-accounts + cost-calculator plan" completed · 1m 48s ⏺ The workflow completed (8 agents, 383k tokens). The create wizard confirms the "Add new account" flow lives in step 1 (mode() === 'new', fields newName/newKey) — that's where the region dropdown goes, and friendly alias is currently mandatory via canCreate(). Let me read the full structured findings. Read 1 file (ctrl+o to expand) ⏺ Comprehensive findings. Let me read the remaining pages (agents 7-8 on the API layer and the region-list/pricing question — the linchpin connecting both groups). Read 1 file (ctrl+o to expand) ⏺ I now have a thorough picture. Before finalizing, let me verify the most decision-critical files with my own eyes — the properties tab (exact removal/rename), the overview placement, the drawer mechanism, the API layer, and how repository mutations evict cached providers (region-change implications). Read 3 files (ctrl+o to expand) ⏺ I've verified the core UI files. The properties tab confirms: account-key block at lines 25-29 (+ accountKey field/reset) to remove, "Encryption passphrase" label at line 31 to rename. Overview's Repositories table (lines 44-80) is the exact template for a Storage Accounts section. DrawerStore needs a new 'account' type + accountId + openAccount(). Let me read the last three integration files (API service, models, add wizard) to nail exact signatures before finalizing. Read 3 files (ctrl+o to expand) ⏺ I now have complete ground truth across the frontend and backend. Two design decisions genuinely depend on your intent and can't be resolved from the code (the codebase has no region list and no filesystem browser today, and pricing.json is single-region). Let me confirm these before writing the plan. ⏺ User answered Claude's questions: ⎿  · There's no Azure region list in the code today, and pricing.json holds rates for one region only (West Europe, EUR). The region dropdown will be a curated list of Azure regions (+ an 'Unknown / Not in list' option). How should the per-tier COST RATES vary by the account's selected region? → Only regions in the json · The Arius.Api backend runs in Docker and can only see paths mounted into the container — it cannot browse your host filesystem. The local path stored is the path AS THE API SEES IT. How should the local-path '[...]' picker work? → Server-side browser ⏺ Both decisions are clear: - Region pricing → "Only regions in the json": restructure pricing.json to be region-keyed; the dropdown is derived from its region keys + "Unknown". This makes pricing.json the single source of truth ("owns the pricing json"). - Folder picker → "Server-side browser": new backend directory-listing endpoint + an Angular folder picker over paths the API can see. Let me verify how the Mediator is wired at the app level vs per-repo (this determines how the CostQuery and regions endpoints dispatch without needlessly authenticating to blob storage). Read 1 file (ctrl+o to expand) ⏺ I now have full ground-truth on every relevant file and both design decisions. One decisive architectural finding: IMediator exists only inside per-repository providers (AddMediator() runs per-repo in RepositoryProviderRegistry.BuildAsync, line 135) — there is no app-level mediator. So the region list (needed before any repo exists, during account creation) must come from a plain app-level endpoint reading the embedded pricing.json, while the per-repo CostQuery dispatches through the repo provider like StatisticsQuery does. Let me write the plan. ⏺ Updated plan ⎿  /plan to preview ⏺ The plan is written. Let me present it for approval. ⎿  User rejected Claude's plan: ╭─────────────────────────────────────────────────────────────────────────╮ │ Plan: Storage Accounts management + region-aware Cost Calculator │ │ │ │ Context │ │ │ │ Two related changes to the Arius.Web Angular SPA and its Arius.Api / │ │ Arius.Core .NET backend (Mediator/CQRS, SQLite app DB): │ │ │ │ - Group 1 — Storage accounts & repos: Today storage accounts are │ │ second-class — they're only created inline in the New/Add-repo wizards, │ │ can never be edited, and carry no Azure region. The Overview has no │ │ place to see or manage them. Meanwhile the repo Properties page shows │ │ an "Account key" field that doesn't even belong to a repo (and isn't │ │ persisted). We surface accounts on the Overview, add a region to each │ │ account, make accounts editable via a flyout, and clean up the │ │ Properties page. │ │ - Group 2 — Cost calculator: The Statistics tab's "Stored size by tier" │ │ section shows size but no cost. We add a region-aware storage-cost │ │ calculator in Core (exposed via a Mediator CostQuery, alongside — not │ │ replacing — the existing RestoreCostCalculator), and a shared Angular │ │ CostCalculator component that renders the redesigned cost-aware tier │ │ breakdown (per the design handoff in │ │ scratchpad/design_handoff/.../Statistics Tab v2.dc.html). │ │ │ │ Decisions confirmed with the user │ │ │ │ 1. Region pricing = "only regions in the json." pricing.json becomes │ │ region-keyed and is the single source of truth. The region dropdown │ │ lists exactly the regions present in the json + an "Unknown / Not in │ │ list" option. Today that means [westeurope, Unknown]; the list grows as │ │ regions are added to the json. Rates select by the account's region; │ │ Unknown/missing → fall back to the default region. │ │ 2. Local-path picker = server-side browser. A new backend endpoint │ │ lists directories as the Arius.Api host/container sees them (mounted │ │ volumes under Docker; real folders when run locally). A [...] button │ │ opens a small folder picker over that. │ │ │ │ Key facts that shape the plan (verified) │ │ │ │ - Account key is already account-scoped in the DB │ │ (storage_accounts.account_key) and the API DTOs. The repo Properties │ │ "Account key" field is vestigial — save() never sends it. So Group 1 │ │ #2's "reflect in the DB" needs no DB change; it's a frontend removal. │ │ - No UpdateAccount exists (DB method, endpoint, or DTO) and no location │ │ column — both are net-new for the edit-account flyout + region. │ │ - Mediator lives only per-repo (AddMediator() in │ │ RepositoryProviderRegistry.BuildAsync). The regions list (used during │ │ account creation, before any repo) must be a plain app-level endpoint. │ │ CostQuery is per-repo (region resolved from the repo's account), │ │ dispatched like StatisticsQuery. │ │ - pricing.json currently has no storagePerGBPerMonth for the archive │ │ tier — must be added (design handoff: ~0.0010), since the cost-by-tier │ │ view needs all four tiers. │ │ - The statistics endpoint caches StatisticsDto keyed by snapshot │ │ fingerprint (region-independent), so cost is kept separate (its own │ │ CostQuery, multiplied client-side) — this matches the user's explicit │ │ "Mediator CostQuery" and avoids cache-invalidation issues. │ │ │ │ --- │ │ Group 1 — Storage Accounts, Repos, Properties │ │ │ │ 1a. Region-keyed pricing as the single source of truth (backend) │ │ │ │ - Move src/Arius.Core/Features/RestoreCommand/pricing.json → │ │ src/Arius.Core/Shared/Pricing/pricing.json; update the │ │ path in src/Arius.Core/Arius.Core.csproj. │ │ - Restructure to region-keyed, add currency per region, and add the │ │ missing archive storagePerGBPerMonth: │ │ { "regions": { "westeurope": { │ │ "currency": "EUR", │ │ "archive": { "retrievalPerGB":0.0204, "retrievalHighPerGB":0.1102, │ │ "readOpsPer10000":6.6094, "readOpsHighPer10000":71.6011, │ │ "storagePerGBPerMonth":0.0010 }, │ │ "hot": { "writeOpsPer10000":0.05, "storagePerGBPerMonth":0.018 }, │ │ "cool": { "writeOpsPer10000":0.10, "storagePerGBPerMonth":0.01 }, │ │ "cold": { "writeOpsPer10000":0.18, "storagePerGBPerMonth":0.0045 } │ │ } } } │ │ - Refactor PricingConfig (currently internal sealed record in │ │ RestoreCostCalculator.cs) into │ │ src/Arius.Core/Shared/Pricing/PricingCatalog.cs: │ │ - PricingCatalog.LoadEmbedded() → │ │ IReadOnlyDictionary Regions, │ │ IReadOnlyList RegionNames, and RegionPricing GetRegion(string? │ │ region) (returns the region's rates; falls back to the default — │ │ first/westeurope — when null/"Unknown"/missing). Keep the existing │ │ LoadEmbedded resource-stream idiom. │ │ - RegionPricing holds Currency + the four tiers (same fields as │ │ today, plus archive storage rate). │ │ - RestoreCostCalculator stays as the restore-only calculator but │ │ consumes the new shape (GetRegion(default) → identical numbers for WE). │ │ Minimal change; behavior preserved. │ │ │ │ 1b. Account location end-to-end (backend) │ │ │ │ - src/Arius.Api/AppData/AppDatabase.cs: add location TEXT to the │ │ storage_accounts CREATE TABLE, plus an additive migration in │ │ CreateOrUpgradeSchema (check PRAGMA table_info(storage_accounts), ALTER │ │ TABLE ... ADD COLUMN location if absent). Update │ │ ReadAccount/ListAccounts/GetAccount, extend InsertAccount(name, key, │ │ location), and add UpdateAccount(id, encryptedKey?, location?) using │ │ the COALESCE($x, col) "null leaves unchanged" idiom already used by │ │ UpdateRepository. │ │ - src/Arius.Api/AppData/Records.cs: add string? Location to │ │ AccountRecord. │ │ - src/Arius.Api/Contracts/Dtos.cs: AccountDto += string? Location; │ │ CreateAccountRequest += string? Location; new │ │ UpdateAccountRequest(string? AccountKey, string? Location). │ │ - src/Arius.Api/Endpoints/AccountEndpoints.cs: include Location in │ │ ToDto/POST; add GET /accounts/{id} (flyout load) and PATCH │ │ /accounts/{id} (key+location; secrets.Protect the key only when │ │ supplied; on key change, registry.Evict the account's repos so the new │ │ key takes effect). Optional DELETE /accounts/{id} guarded by │ │ CountRepositoriesForAccount for the flyout danger-zone. │ │ - New GET /pricing/regions (app-level, no provider): a small │ │ PricingEndpoints.cs returning PricingCatalog.RegionNames (needs a │ │ public accessor on the catalog). Frontend appends "Unknown / Not in │ │ list". Map it in Program.cs. │ │ │ │ 1c. Server-side folder browser (backend) │ │ │ │ - New src/Arius.Api/Endpoints/FilesystemEndpoints.cs: GET │ │ /fs/list?path= returns immediate subdirectories ({ name, path }[]) of │ │ path on the API host, with a default root and graceful handling of │ │ not-found/no-permission. Reuse traversal patterns from │ │ Arius.Core/Features/ListQuery/LocalDirectoryReader.cs │ │ (enumerate-with-degradation). Map in Program.cs. │ │ │ │ 1d. Overview "Storage Accounts" section (frontend) │ │ │ │ - src/app/features/overview/overview.component.ts: add a new .ar-card │ │ section below the Repositories table (clone the markup at lines 44–80). │ │ Columns: Account | Region | Repositories. accounts = │ │ toSignal(this.api.listAccounts()); each row (click)="editAccount(a.id)" │ │ → drawer.openAccount(a.id); show a.location ?? 'Unknown' and │ │ a.repositories. │ │ │ │ 1e. Edit-account flyout (frontend) │ │ │ │ - src/app/core/state/drawer.store.ts: extend DrawerType with 'account'; │ │ add accountId = signal(0) and openAccount(accountId) (mirrors │ │ openProperties). │ │ - New src/app/features/drawer/account-drawer.component.ts (clone │ │ properties-drawer.component.ts scrim/ar-drawer/animations). Header │ │ "Edit storage account". Loads via api.getAccount(id). Fields: Account │ │ name (read-only), Account key (password, "replace to rotate"), Region │ │ ( sourced from api.getRegions() (+ "Unknown │ │ / Not in list"); pass it to createAccount(name, key, region). │ │ - Extend api.createAccount + CreateAccountRequest with location (see 3, │ │ API layer below). │ │ │ │ 1g. Add-repo screen polish (frontend, Group 1 #3) │ │ │ │ - Mandatory fields red: add a shared .ar-req convention (red asterisk │ │ on the label, and/or red border when required-and-empty). Apply to │ │ genuinely required fields (Account name, Account key, Container │ │ selection, Passphrase). Region is not required (Unknown is valid). │ │ - Friendly alias optional: in add-repo-wizard.component.ts change the │ │ create button guard [disabled]="!selectedContainer() || !alias" │ │ (line 71) → [disabled]="!selectedContainer()", and in add() default │ │ alias: this.alias || this.selectedContainer(). (In the create wizard, │ │ alias seeds the generated container name, so it stays effectively │ │ required there — only add red markers.) │ │ - Local path [...]: new shared src/app/shared/folder-picker/ (a [...] │ │ button + popover that calls api.listDirectories(path), lets the user │ │ navigate, returns the chosen API-side path). Wire it into the │ │ local-path input of add-repo-wizard (line 67); reuse in │ │ create-repo-wizard (line 49) and properties-tab (line 44) for │ │ consistency. │ │ │ │ 1h. Properties page cleanup (frontend, Group 1 #2) │ │ │ │ - src/app/features/repo/properties/properties-tab.component.ts: remove │ │ the "Account key" field block (lines 25–29), the accountKey field │ │ (line 112) and its reset() assignment (line 163) — save() already omits │ │ it. Rename label "Encryption passphrase" → "Passphrase" (line 31). │ │ Update the component doc comment (line 8). No backend/DTO change needed │ │ (key was never a repo property). │ │ │ │ --- │ │ Group 2 — Region-aware Cost Calculator │ │ │ │ 2a. CostQuery Mediator query (Core) │ │ │ │ - New src/Arius.Core/Features/CostQuery/CostQuery.cs: │ │ - record CostQuery(string? Region) : ICommand; │ │ - record StorageCost(string Region, string Currency, │ │ IReadOnlyList Tiers); with record │ │ TierStorageRate(string Tier, double StoragePerGbMonth); │ │ - CostQueryHandler : ICommandHandler │ │ depending only on the shared PricingCatalog (no account/container) — │ │ returns per-tier storagePerGBPerMonth for hot/cool/cold/archive of the │ │ resolved region. │ │ - Register in src/Arius.Core/ServiceCollectionExtensions.cs next to the │ │ StatisticsQuery handler (~line 177). │ │ - This is the "another cost calculator, exposed via a Mediator │ │ CostQuery." RestoreCostCalculator is kept untouched in purpose; both │ │ now read the same shared PricingCatalog (which "owns the pricing │ │ json"). │ │ │ │ 2b. Cost endpoint + DTO (API) │ │ │ │ - src/Arius.Api/Contracts/Dtos.cs: new StorageCostDto(string Region, │ │ string Currency, IReadOnlyList Tiers) + TierCostDto(string │ │ Tier, double CostPerGbMonth). (TierStatisticsDto stays as-is.) │ │ - New GET /repos/{id}/storage-cost (in BrowseEndpoints.cs or a new │ │ CostEndpoints.cs): read repo→account→location from AppDatabase, get the │ │ repo provider's IMediator (registry.GetReadProviderAsync, already warm │ │ on the Statistics tab), Send(new CostQuery(location)), map to │ │ StorageCostDto. No caching (trivial lookup). │ │ │ │ 2c. Shared CostCalculator component (frontend) replacing "Stored size │ │ by tier" │ │ │ │ - New src/app/shared/cost-calculator/cost-calculator.component.ts │ │ implementing the design handoff (Statistics Tab v2.dc.html): a │ │ 100%-stacked hero bar (total-scaled %), legend, detail table Tier | │ │ Stored | Chunks | Est. cost/mo, and a grand-total footer. Inputs: │ │ repoId + tiers (StatisticsDto.storedByTier). It fetches rates via │ │ api.getStorageCost(repoId); per-tier cost = (storedSize / 1e9) * │ │ costPerGbMonth, total = sum; currency from the response. Reuse │ │ TIER_COLORS, formatBytes, formatCount; add formatCurrency to │ │ src/app/shared/format.ts. │ │ - src/app/features/repo/statistics/statistics-tab.component.ts: replace │ │ the inline tier block (lines 24–40) with (keep the │ │ @if (tiers().length) guard semantics). Update the info-banner copy per │ │ the handoff. │ │ │ │ --- │ │ Shared API layer (frontend) — both groups │ │ │ │ src/app/core/api/api-models.ts: AccountDto += location: string | null; │ │ add StorageCostDto/TierCostDto; optional UpdateAccountRequest. │ │ src/app/core/api/api.service.ts: extend createAccount(name, key, │ │ location); add getAccount(id), updateAccount(id, {accountKey?, │ │ location?}) (PATCH), getStorageCost(id), getRegions(), │ │ listDirectories(path). │ │ │ │ --- │ │ Files at a glance │ │ │ │ Area: Pricing (Core) │ │ Create: Shared/Pricing/PricingCatalog.cs, Shared/Pricing/pricing.json │ │ (moved) │ │ Modify: Arius.Core.csproj (resource path), │ │ Features/RestoreCommand/RestoreCostCalculator.cs │ │ ──────────────────────────────────────── │ │ Area: CostQuery (Core) │ │ Create: Features/CostQuery/CostQuery.cs │ │ Modify: ServiceCollectionExtensions.cs │ │ ──────────────────────────────────────── │ │ Area: DB / API │ │ Create: Endpoints/PricingEndpoints.cs, Endpoints/FilesystemEndpoints.cs │ │ (+ │ │ CostEndpoints.cs or fold into Browse) │ │ Modify: AppData/AppDatabase.cs, AppData/Records.cs, Contracts/Dtos.cs, │ │ Endpoints/AccountEndpoints.cs, Endpoints/BrowseEndpoints.cs, │ │ Program.cs │ │ ──────────────────────────────────────── │ │ Area: Frontend │ │ Create: features/drawer/account-drawer.component.ts, │ │ shared/cost-calculator/cost-calculator.component.ts, │ │ shared/folder-picker/* │ │ Modify: overview.component.ts, core/state/drawer.store.ts, │ │ app.component.ts, │ │ wizards/create/*, wizards/add/*, │ │ repo/properties/properties-tab.component.ts, │ │ repo/statistics/statistics-tab.component.ts, │ │ core/api/api.service.ts, │ │ core/api/api-models.ts, shared/format.ts │ │ │ │ Reuse (don't reinvent) │ │ │ │ - Drawer flyout: DrawerStore + properties-drawer.component.ts pattern │ │ (scrim/ar-drawer/ar-fade/ar-slide). │ │ - List section markup: Overview Repositories table (lines 44–80). │ │ - Form styling: .ar-field/.ar-input/.ar-seg/.ar-radio (already in every │ │ wizard/properties component). │ │ - Mediator query recipe: StatisticsQuery.cs + its registration; │ │ endpoint dispatch in BrowseEndpoints.cs. │ │ - DB idioms: COALESCE partial-update (UpdateRepository), ReadAccount │ │ reader, CountRepositoriesForAccount guard, PricingConfig.LoadEmbedded │ │ resource-stream loader. │ │ - Formatting: shared/format.ts (formatBytes/formatCount), TIER_COLORS. │ │ │ │ Verification │ │ │ │ - Backend: dotnet build (Arius.Api/Core; note Arius.Web is not in the │ │ slnx). Run the API on :5080. Check existing Core tests for │ │ pricing/RestoreCost (the pricing.json move + restructure will touch │ │ them) — dotnet test src/Arius.Core.Tests. │ │ - Frontend: cd src/Arius.Web && npm start (API on :5080). Manually │ │ verify: Overview shows Storage Accounts; New/Add wizards' "Add new │ │ account" shows a region dropdown; mandatory fields are red; clicking an │ │ account opens the flyout to edit key + region; Properties has no │ │ Account key field and shows "Passphrase"; Add-repo alias is optional │ │ (defaults to container) and local path has a working [...] picker; │ │ Statistics tab shows the cost-aware tier breakdown with per-tier Est. │ │ cost/mo + grand total. │ │ - e2e/unit (Playwright + Karma): update specs whose markup/flow changed │ │ — overview.spec, create-wizard.spec, add-wizard.spec, properties.spec, │ │ statistics.spec, statistics-tiers.spec (preserve/extend data-testids; │ │ add ids for the region select, folder picker, account drawer, cost │ │ table). Run npm run e2e and ng test. │ ╰─────────────────────────────────────────────────────────────────────────╯ ⏺ Good questions — and I agree with your instinct. Let me verify the Mediator library exposes IQuery/IQueryHandler (the codebase currently only uses ICommand and IStreamQuery), then I'll rework the plan so the calculation lives in Core. Ran 1 shell command (ctrl+o to expand) ⏺ Confirmed: Mediator 3.0.2 (martinothamar) — it exposes IQuery/IQueryHandler<,> (the codebase just hasn't used them yet; it uses ICommand + IStreamQuery). mediator.Send(IQuery) works the same way. So IQuery is the right, read-correct choice. And I fully agree the math belongs in Core. Let me answer your questions and rework the plan. Who owns what: - Rates → Core's new Shared/Pricing/PricingCatalog (region-keyed pricing.json, single source of truth). - Per-tier stored sizes → the existing StatisticsQuery (chunk index). - The cost math → the new CostQuery handler in Core: it dispatches StatisticsQuery, multiplies each tier's stored size by that region's storagePerGBPerMonth (using the same 1024³ GiB convention as RestoreCostCalculator), and returns finished per-tier costs + grand total + currency. The frontend does zero arithmetic — it just renders. Let me update the plan accordingly. ⏺ Updated plan ⎿  /plan to preview ⏺ Updated plan ⎿  /plan to preview ⏺ Updated plan ⎿  /plan to preview ⏺ Updated plan ⎿  /plan to preview ⏺ Plan updated to reflect both points: CostQuery now uses IQuery/IQueryHandler, and the entire cost calculation lives in the Core handler (composing StatisticsQuery + PricingCatalog, GiB-consistent with RestoreCostCalculator), with the frontend rendering finished numbers only. Re-presenting for approval. ⎿  User rejected Claude's plan: ╭─────────────────────────────────────────────────────────────────────────╮ │ Plan: Storage Accounts management + region-aware Cost Calculator │ │ │ │ Context │ │ │ │ Two related changes to the Arius.Web Angular SPA and its Arius.Api / │ │ Arius.Core .NET backend (Mediator/CQRS, SQLite app DB): │ │ │ │ - Group 1 — Storage accounts & repos: Today storage accounts are │ │ second-class — they're only created inline in the New/Add-repo wizards, │ │ can never be edited, and carry no Azure region. The Overview has no │ │ place to see or manage them. Meanwhile the repo Properties page shows │ │ an "Account key" field that doesn't even belong to a repo (and isn't │ │ persisted). We surface accounts on the Overview, add a region to each │ │ account, make accounts editable via a flyout, and clean up the │ │ Properties page. │ │ - Group 2 — Cost calculator: The Statistics tab's "Stored size by tier" │ │ section shows size but no cost. We add a region-aware storage-cost │ │ calculator in Core (exposed via a Mediator CostQuery, alongside — not │ │ replacing — the existing RestoreCostCalculator), and a shared Angular │ │ CostCalculator component that renders the redesigned cost-aware tier │ │ breakdown (per the design handoff in │ │ scratchpad/design_handoff/.../Statistics Tab v2.dc.html). │ │ │ │ Decisions confirmed with the user │ │ │ │ 1. Region pricing = "only regions in the json." pricing.json becomes │ │ region-keyed and is the single source of truth. The region dropdown │ │ lists exactly the regions present in the json + an "Unknown / Not in │ │ list" option. Today that means [westeurope, Unknown]; the list grows as │ │ regions are added to the json. Rates select by the account's region; │ │ Unknown/missing → fall back to the default region. │ │ 2. Local-path picker = server-side browser. A new backend endpoint │ │ lists directories as the Arius.Api host/container sees them (mounted │ │ volumes under Docker; real folders when run locally). A [...] button │ │ opens a small folder picker over that. │ │ │ │ Key facts that shape the plan (verified) │ │ │ │ - Account key is already account-scoped in the DB │ │ (storage_accounts.account_key) and the API DTOs. The repo Properties │ │ "Account key" field is vestigial — save() never sends it. So Group 1 │ │ #2's "reflect in the DB" needs no DB change; it's a frontend removal. │ │ - No UpdateAccount exists (DB method, endpoint, or DTO) and no location │ │ column — both are net-new for the edit-account flyout + region. │ │ - Mediator lives only per-repo (AddMediator() in │ │ RepositoryProviderRegistry.BuildAsync). The regions list (used during │ │ account creation, before any repo) must be a plain app-level endpoint. │ │ CostQuery is per-repo (region resolved from the repo's account), │ │ dispatched like StatisticsQuery. │ │ - pricing.json currently has no storagePerGBPerMonth for the archive │ │ tier — must be added (design handoff: ~0.0010), since the cost-by-tier │ │ view needs all four tiers. │ │ - Cost is a separate CostQuery (not folded into the fingerprint-cached │ │ StatisticsDto), and all cost math happens in Core — the CostQuery │ │ handler composes the StatisticsQuery outcome with the region's rates │ │ and returns finished numbers. The frontend does no arithmetic. Mediator │ │ 3.0.2 exposes IQuery/IQueryHandler<,> (used here; the codebase's │ │ existing queries happen to use ICommand/IStreamQuery, but IQuery is the │ │ read-correct interface and mediator.Send handles it identically). │ │ │ │ Data ownership (who owns the calculation) │ │ │ │ ┌──────────────────────────┬─────────────────────────────────────────── │ │ ───┐ │ │ │ Concern │ Owner │ │ │ │ │ ├──────────────────────────┼─────────────────────────────────────────── │ │ ───┤ │ │ │ Pricing rates │ Core Shared/Pricing/PricingCatalog — │ │ single │ │ │ │ (region-keyed │ source of truth │ │ │ │ │ │ pricing.json) │ │ │ │ │ │ ├──────────────────────────┼─────────────────────────────────────────── │ │ ───┤ │ │ │ Per-tier stored size + │ existing StatisticsQuery (chunk index) │ │ │ │ │ │ chunk counts │ │ │ │ │ │ ├──────────────────────────┼─────────────────────────────────────────── │ │ ───┤ │ │ │ Cost calculation (size × │ CostQueryHandler in Core, composing │ │ │ │ │ │ rate → per-tier cost + │ StatisticsQuery + PricingCatalog. Frontend │ │ │ │ │ │ grand total) │ renders only. │ │ │ │ │ └──────────────────────────┴─────────────────────────────────────────── │ │ ───┘ │ │ │ │ --- │ │ Group 1 — Storage Accounts, Repos, Properties │ │ │ │ 1a. Region-keyed pricing as the single source of truth (backend) │ │ │ │ - Move src/Arius.Core/Features/RestoreCommand/pricing.json → │ │ src/Arius.Core/Shared/Pricing/pricing.json; update the │ │ path in src/Arius.Core/Arius.Core.csproj. │ │ - Restructure to region-keyed, add currency per region, and add the │ │ missing archive storagePerGBPerMonth: │ │ { "regions": { "westeurope": { │ │ "currency": "EUR", │ │ "archive": { "retrievalPerGB":0.0204, "retrievalHighPerGB":0.1102, │ │ "readOpsPer10000":6.6094, "readOpsHighPer10000":71.6011, │ │ "storagePerGBPerMonth":0.0010 }, │ │ "hot": { "writeOpsPer10000":0.05, "storagePerGBPerMonth":0.018 }, │ │ "cool": { "writeOpsPer10000":0.10, "storagePerGBPerMonth":0.01 }, │ │ "cold": { "writeOpsPer10000":0.18, "storagePerGBPerMonth":0.0045 } │ │ } } } │ │ - Refactor PricingConfig (currently internal sealed record in │ │ RestoreCostCalculator.cs) into │ │ src/Arius.Core/Shared/Pricing/PricingCatalog.cs: │ │ - PricingCatalog.LoadEmbedded() → │ │ IReadOnlyDictionary Regions, │ │ IReadOnlyList RegionNames, and RegionPricing GetRegion(string? │ │ region) (returns the region's rates; falls back to the default — │ │ first/westeurope — when null/"Unknown"/missing). Keep the existing │ │ LoadEmbedded resource-stream idiom. │ │ - RegionPricing holds Currency + the four tiers (same fields as │ │ today, plus archive storage rate). │ │ - RestoreCostCalculator stays as the restore-only calculator but │ │ consumes the new shape (GetRegion(default) → identical numbers for WE). │ │ Minimal change; behavior preserved. │ │ │ │ 1b. Account location end-to-end (backend) │ │ │ │ - src/Arius.Api/AppData/AppDatabase.cs: add location TEXT to the │ │ storage_accounts CREATE TABLE, plus an additive migration in │ │ CreateOrUpgradeSchema (check PRAGMA table_info(storage_accounts), ALTER │ │ TABLE ... ADD COLUMN location if absent). Update │ │ ReadAccount/ListAccounts/GetAccount, extend InsertAccount(name, key, │ │ location), and add UpdateAccount(id, encryptedKey?, location?) using │ │ the COALESCE($x, col) "null leaves unchanged" idiom already used by │ │ UpdateRepository. │ │ - src/Arius.Api/AppData/Records.cs: add string? Location to │ │ AccountRecord. │ │ - src/Arius.Api/Contracts/Dtos.cs: AccountDto += string? Location; │ │ CreateAccountRequest += string? Location; new │ │ UpdateAccountRequest(string? AccountKey, string? Location). │ │ - src/Arius.Api/Endpoints/AccountEndpoints.cs: include Location in │ │ ToDto/POST; add GET /accounts/{id} (flyout load) and PATCH │ │ /accounts/{id} (key+location; secrets.Protect the key only when │ │ supplied; on key change, registry.Evict the account's repos so the new │ │ key takes effect). Optional DELETE /accounts/{id} guarded by │ │ CountRepositoriesForAccount for the flyout danger-zone. │ │ - New GET /pricing/regions (app-level, no provider): a small │ │ PricingEndpoints.cs returning PricingCatalog.RegionNames (needs a │ │ public accessor on the catalog). Frontend appends "Unknown / Not in │ │ list". Map it in Program.cs. │ │ │ │ 1c. Server-side folder browser (backend) │ │ │ │ - New src/Arius.Api/Endpoints/FilesystemEndpoints.cs: GET │ │ /fs/list?path= returns immediate subdirectories ({ name, path }[]) of │ │ path on the API host, with a default root and graceful handling of │ │ not-found/no-permission. Reuse traversal patterns from │ │ Arius.Core/Features/ListQuery/LocalDirectoryReader.cs │ │ (enumerate-with-degradation). Map in Program.cs. │ │ │ │ 1d. Overview "Storage Accounts" section (frontend) │ │ │ │ - src/app/features/overview/overview.component.ts: add a new .ar-card │ │ section below the Repositories table (clone the markup at lines 44–80). │ │ Columns: Account | Region | Repositories. accounts = │ │ toSignal(this.api.listAccounts()); each row (click)="editAccount(a.id)" │ │ → drawer.openAccount(a.id); show a.location ?? 'Unknown' and │ │ a.repositories. │ │ │ │ 1e. Edit-account flyout (frontend) │ │ │ │ - src/app/core/state/drawer.store.ts: extend DrawerType with 'account'; │ │ add accountId = signal(0) and openAccount(accountId) (mirrors │ │ openProperties). │ │ - New src/app/features/drawer/account-drawer.component.ts (clone │ │ properties-drawer.component.ts scrim/ar-drawer/animations). Header │ │ "Edit storage account". Loads via api.getAccount(id). Fields: Account │ │ name (read-only), Account key (password, "replace to rotate"), Region │ │ ( sourced from api.getRegions() (+ "Unknown │ │ / Not in list"); pass it to createAccount(name, key, region). │ │ - Extend api.createAccount + CreateAccountRequest with location (see 3, │ │ API layer below). │ │ │ │ 1g. Add-repo screen polish (frontend, Group 1 #3) │ │ │ │ - Mandatory fields red: add a shared .ar-req convention (red asterisk │ │ on the label, and/or red border when required-and-empty). Apply to │ │ genuinely required fields (Account name, Account key, Container │ │ selection, Passphrase). Region is not required (Unknown is valid). │ │ - Friendly alias optional: in add-repo-wizard.component.ts change the │ │ create button guard [disabled]="!selectedContainer() || !alias" │ │ (line 71) → [disabled]="!selectedContainer()", and in add() default │ │ alias: this.alias || this.selectedContainer(). (In the create wizard, │ │ alias seeds the generated container name, so it stays effectively │ │ required there — only add red markers.) │ │ - Local path [...]: new shared src/app/shared/folder-picker/ (a [...] │ │ button + popover that calls api.listDirectories(path), lets the user │ │ navigate, returns the chosen API-side path). Wire it into the │ │ local-path input of add-repo-wizard (line 67); reuse in │ │ create-repo-wizard (line 49) and properties-tab (line 44) for │ │ consistency. │ │ │ │ 1h. Properties page cleanup (frontend, Group 1 #2) │ │ │ │ - src/app/features/repo/properties/properties-tab.component.ts: remove │ │ the "Account key" field block (lines 25–29), the accountKey field │ │ (line 112) and its reset() assignment (line 163) — save() already omits │ │ it. Rename label "Encryption passphrase" → "Passphrase" (line 31). │ │ Update the component doc comment (line 8). No backend/DTO change needed │ │ (key was never a repo property). │ │ │ │ --- │ │ Group 2 — Region-aware Cost Calculator │ │ │ │ 2a. CostQuery Mediator query — calculation in Core (uses IQuery) │ │ │ │ - New src/Arius.Core/Features/CostQuery/CostQuery.cs: │ │ - record CostQuery(string? Region, string? Version = null, bool │ │ EnsureFullCoverage = false) : IQuery; │ │ - record RepositoryStorageCost(string Region, string Currency, │ │ IReadOnlyList Tiers, double TotalPerMonth); │ │ - record TierStorageCost(string Tier, long StoredSize, long │ │ UniqueChunks, double CostPerMonth); │ │ - CostQueryHandler : IQueryHandler │ │ injects IMediator + PricingCatalog. It dispatches │ │ StatisticsQuery(Version, EnsureFullCoverage) to get StoredByTier, │ │ resolves the region via PricingCatalog.GetRegion(Region), and for each │ │ tier computes CostPerMonth = (StoredSize / 1024³) * │ │ region..StoragePerGbMonth (same GiB convention as │ │ RestoreCostCalculator), summing into TotalPerMonth. Returns finished │ │ numbers — no client math. │ │ - Register in src/Arius.Core/ServiceCollectionExtensions.cs next to the │ │ StatisticsQuery handler (~line 177): │ │ services.AddSingleton>(sp => new │ │ CostQueryHandler(sp.GetRequiredService(), , │ │ logger)). (The per-repo provider already has IMediator + the │ │ StatisticsQuery handler registered, so the in-handler Send resolves.) │ │ - This is the "another cost calculator, exposed via a Mediator │ │ CostQuery." RestoreCostCalculator is kept as the restore-only │ │ calculator; both now read the same shared PricingCatalog (which "owns │ │ the pricing json"). │ │ │ │ 2b. Cost endpoint + DTO (API) │ │ │ │ - src/Arius.Api/Contracts/Dtos.cs: new StorageCostDto(string Region, │ │ string Currency, IReadOnlyList Tiers, double │ │ TotalPerMonth) + TierCostDto(string Tier, long StoredSize, long │ │ UniqueChunks, double CostPerMonth) (mirrors RepositoryStorageCost; │ │ TierStatisticsDto stays as-is for the KPI cards). │ │ - New GET /repos/{id}/storage-cost?full=true (in BrowseEndpoints.cs or │ │ a new CostEndpoints.cs): read repo→account→location from AppDatabase, │ │ get the repo provider's IMediator (registry.GetReadProviderAsync — │ │ already warm from the Statistics tab), Send(new CostQuery(location, │ │ version, full)), map to StorageCostDto. (StatisticsQuery's own work is │ │ reused via the in-handler dispatch; the chunk index is read locally.) │ │ │ │ 2c. Shared CostCalculator component (frontend) replacing "Stored size │ │ by tier" │ │ │ │ - New src/app/shared/cost-calculator/cost-calculator.component.ts │ │ implementing the design handoff (Statistics Tab v2.dc.html): a │ │ 100%-stacked hero bar (total-scaled %), legend, detail table Tier | │ │ Stored | Chunks | Est. cost/mo, and a grand-total footer. Input: just │ │ repoId. It fetches the finished StorageCostDto via │ │ api.getStorageCost(repoId) and renders its tiers (each already carries │ │ storedSize, uniqueChunks, costPerMonth) + totalPerMonth — no arithmetic │ │ in the component. Reuse TIER_COLORS, formatBytes, formatCount; add │ │ formatCurrency(amount, currency) to src/app/shared/format.ts. │ │ - src/app/features/repo/statistics/statistics-tab.component.ts: replace │ │ the inline tier block (lines 24–40) with . The KPI cards keep using StatisticsDto; the │ │ per-tier section is now fully driven by CostQuery. Update the │ │ info-banner copy per the handoff. │ │ │ │ --- │ │ Shared API layer (frontend) — both groups │ │ │ │ src/app/core/api/api-models.ts: AccountDto += location: string | null; │ │ add StorageCostDto/TierCostDto; optional UpdateAccountRequest. │ │ src/app/core/api/api.service.ts: extend createAccount(name, key, │ │ location); add getAccount(id), updateAccount(id, {accountKey?, │ │ location?}) (PATCH), getStorageCost(id), getRegions(), │ │ listDirectories(path). │ │ │ │ --- │ │ Files at a glance │ │ │ │ Area: Pricing (Core) │ │ Create: Shared/Pricing/PricingCatalog.cs, Shared/Pricing/pricing.json │ │ (moved) │ │ Modify: Arius.Core.csproj (resource path), │ │ Features/RestoreCommand/RestoreCostCalculator.cs │ │ ──────────────────────────────────────── │ │ Area: CostQuery (Core) │ │ Create: Features/CostQuery/CostQuery.cs │ │ Modify: ServiceCollectionExtensions.cs │ │ ──────────────────────────────────────── │ │ Area: DB / API │ │ Create: Endpoints/PricingEndpoints.cs, Endpoints/FilesystemEndpoints.cs │ │ (+ │ │ CostEndpoints.cs or fold into Browse) │ │ Modify: AppData/AppDatabase.cs, AppData/Records.cs, Contracts/Dtos.cs, │ │ Endpoints/AccountEndpoints.cs, Endpoints/BrowseEndpoints.cs, │ │ Program.cs │ │ ──────────────────────────────────────── │ │ Area: Frontend │ │ Create: features/drawer/account-drawer.component.ts, │ │ shared/cost-calculator/cost-calculator.component.ts, │ │ shared/folder-picker/* │ │ Modify: overview.component.ts, core/state/drawer.store.ts, │ │ app.component.ts, │ │ wizards/create/*, wizards/add/*, │ │ repo/properties/properties-tab.component.ts, │ │ repo/statistics/statistics-tab.component.ts, │ │ core/api/api.service.ts, │ │ core/api/api-models.ts, shared/format.ts │ │ │ │ Reuse (don't reinvent) │ │ │ │ - Drawer flyout: DrawerStore + properties-drawer.component.ts pattern │ │ (scrim/ar-drawer/ar-fade/ar-slide). │ │ - List section markup: Overview Repositories table (lines 44–80). │ │ - Form styling: .ar-field/.ar-input/.ar-seg/.ar-radio (already in every │ │ wizard/properties component). │ │ - Mediator query recipe: StatisticsQuery.cs + its registration; │ │ endpoint dispatch in BrowseEndpoints.cs. │ │ - DB idioms: COALESCE partial-update (UpdateRepository), ReadAccount │ │ reader, CountRepositoriesForAccount guard, PricingConfig.LoadEmbedded │ │ resource-stream loader. │ │ - Formatting: shared/format.ts (formatBytes/formatCount), TIER_COLORS. │ │ │ │ Verification │ │ │ │ - Backend: dotnet build (Arius.Api/Core; note Arius.Web is not in the │ │ slnx). Run the API on :5080. Check existing Core tests for │ │ pricing/RestoreCost (the pricing.json move + restructure will touch │ │ them) — dotnet test src/Arius.Core.Tests. │ │ - Frontend: cd src/Arius.Web && npm start (API on :5080). Manually │ │ verify: Overview shows Storage Accounts; New/Add wizards' "Add new │ │ account" shows a region dropdown; mandatory fields are red; clicking an │ │ account opens the flyout to edit key + region; Properties has no │ │ Account key field and shows "Passphrase"; Add-repo alias is optional │ │ (defaults to container) and local path has a working [...] picker; │ │ Statistics tab shows the cost-aware tier breakdown with per-tier Est. │ │ cost/mo + grand total. │ │ - e2e/unit (Playwright + Karma): update specs whose markup/flow changed │ │ — overview.spec, create-wizard.spec, add-wizard.spec, properties.spec, │ │ statistics.spec, statistics-tiers.spec (preserve/extend data-testids; │ │ add ids for the region select, folder picker, account drawer, cost │ │ table). Run npm run e2e and ng test. │ ╰─────────────────────────────────────────────────────────────────────────╯ ⏺ That's a cleaner consolidation — fold the cost into StatisticsQuery (one query, one endpoint, one cached payload) and switch it to IQuery. The design handoff actually anticipated this (extending TierStatisticsDto with cost). Let me check the blast radius of changing StatisticsQuery from ICommand to IQuery (registration + any test doubles), then rework the plan. Ran 1 shell command (ctrl+o to expand) ⏺ Blast radius is small and clear: StatisticsQuery.cs (interface swap), ServiceCollectionExtensions.cs:177 (registration), StatisticsQueryHandlerTests.cs (constructor + new cost assertions), and BrowseEndpoints.cs (pass region, map cost). ChunkTierStatistic stays a pure chunk-index type — I'll add cost on a statistics-specific tier record instead. Reworking the plan now. ⏺ Updated plan ⎿  /plan to preview ⏺ Updated plan ⎿  /plan to preview ⏺ Updated plan ⎿  /plan to preview ⏺ Updated plan ⎿  /plan to preview ⏺ Updated plan ⎿  /plan to preview ⏺ Updated plan ⎿  /plan to preview ⏺ Updated plan ⎿  /plan to preview ⏺ Let me verify no dangling references to the old separate-CostQuery design remain in the plan. Searched for 1 pattern (ctrl+o to expand) ⏺ Two context lines still describe the old design. Let me fix them. ⏺ Updated plan ⎿  /plan to preview ⏺ Updated plan ⎿  /plan to preview ⏺ The plan is now fully consistent with both refinements. Re-presenting for approval. Summary of the two changes you asked for: - Cost now rides on StatisticsQuery (one query, one /stats endpoint, one cached payload) instead of a separate query. The StatisticsQuery handler computes per-tier sizes as today, then calls a new Core StorageCostCalculator to attach costPerMonth per tier + a grand total + currency — all math in Core, frontend renders only. RestoreCostCalculator stays as-is; both share the region-keyed PricingCatalog that owns pricing.json. - StatisticsQuery switches ICommand → IQuery (and handler → IQueryHandler<,>). Small, contained blast radius: the type def, the ServiceCollectionExtensions.cs:177 registration, and StatisticsQueryHandlerTests.cs (which constructs the handler directly). - Region freshness is handled by invalidating the stats cache on account-region change (account PATCH → evict + ClearStatisticsCache for that account's repos), since the cache key is region-independent. ⏺ User approved Claude's plan ⎿  Plan saved to: ~/.claude/plans/1-in-the-overview-lexical-dijkstra.md · /plan to edit Plan: Storage Accounts management + region-aware Cost Calculator Context Two related changes to the Arius.Web Angular SPA and its Arius.Api / Arius.Core .NET backend (Mediator/CQRS, SQLite app DB): - Group 1 — Storage accounts & repos: Today storage accounts are second-class — they're only created inline in the New/Add-repo wizards, can never be edited, and carry no Azure region. The Overview has no place to see or manage them. Meanwhile the repo Properties page shows an "Account key" field that doesn't even belong to a repo (and isn't persisted). We surface accounts on the Overview, add a region to each account, make accounts editable via a flyout, and clean up the Properties page. - Group 2 — Cost calculator: The Statistics tab's "Stored size by tier" section shows size but no cost. We add a region-aware StorageCostCalculator in Core (a sibling to — not a replacement for — the existing RestoreCostCalculator), fold its output into the StatisticsQuery result (switched to IQuery), and add a shared Angular CostCalculator component that renders the redesigned cost-aware tier breakdown (per the design handoff in scratchpad/design_handoff/.../Statistics Tab v2.dc.html). Decisions confirmed with the user 1. Region pricing = "only regions in the json." pricing.json becomes region-keyed and is the single source of truth. The region dropdown lists exactly the regions present in the json + an "Unknown / Not in list" option. Today that means [westeurope, Unknown]; the list grows as regions are added to the json. Rates select by the account's region; Unknown/missing → fall back to the default region. 2. Local-path picker = server-side browser. A new backend endpoint lists directories as the Arius.Api host/container sees them (mounted volumes under Docker; real folders when run locally). A [...] button opens a small folder picker over that. Key facts that shape the plan (verified) - Account key is already account-scoped in the DB (storage_accounts.account_key) and the API DTOs. The repo Properties "Account key" field is vestigial — save() never sends it. So Group 1 #2's "reflect in the DB" needs no DB change; it's a frontend removal. - No UpdateAccount exists (DB method, endpoint, or DTO) and no location column — both are net-new for the edit-account flyout + region. - Mediator lives only per-repo (AddMediator() in RepositoryProviderRegistry.BuildAsync). The regions list (used during account creation, before any repo) must be a plain app-level endpoint reading the embedded pricing.json. Cost is per-repo (region resolved from the repo's account at the API layer and passed into StatisticsQuery), which is already dispatched through the per-repo provider. - pricing.json currently has no storagePerGBPerMonth for the archive tier — must be added (design handoff: ~0.0010), since the cost-by-tier view needs all four tiers. - Cost is folded into StatisticsQuery (one query, one /stats endpoint, one cached payload) rather than a separate query, and all cost math happens in Core. StatisticsQuery is switched to IQuery (Mediator 3.0.2 exposes IQuery/IQueryHandler; the codebase's other queries use ICommand/IStreamQuery, but IQuery is the read-correct interface and mediator.Send handles it identically). Because the stats payload is memoized in the app DB keyed by snapshot fingerprint (region-independent), the cache is invalidated when an account's region changes (account PATCH → evict + ClearStatisticsCache for that account's repos). Data ownership (who owns the calculation) ┌───────────────────────┬─────────────────────────────────────────────────┐ │ Concern │ Owner │ ├───────────────────────┼─────────────────────────────────────────────────┤ │ Pricing rates │ Core Shared/Pricing/PricingCatalog — single │ │ (region-keyed │ source of truth │ │ pricing.json) │ │ ├───────────────────────┼─────────────────────────────────────────────────┤ │ Cost calculator │ │ │ (region + sizes → │ Core Shared/Pricing/StorageCostCalculator │ │ per-tier cost + grand │ (sibling of RestoreCostCalculator) │ │ total) │ │ ├───────────────────────┼─────────────────────────────────────────────────┤ │ Per-tier stored size │ StatisticsQuery handler — computes sizes, then │ │ + chunk counts, and │ calls StorageCostCalculator. Frontend renders │ │ now cost │ only. │ └───────────────────────┴─────────────────────────────────────────────────┘ --- Group 1 — Storage Accounts, Repos, Properties 1a. Region-keyed pricing as the single source of truth (backend) - Move src/Arius.Core/Features/RestoreCommand/pricing.json → src/Arius.Core/Shared/Pricing/pricing.json; update the path in src/Arius.Core/Arius.Core.csproj. - Restructure to region-keyed, add currency per region, and add the missing archive storagePerGBPerMonth: { "regions": { "westeurope": { "currency": "EUR", "archive": { "retrievalPerGB":0.0204, "retrievalHighPerGB":0.1102, "readOpsPer10000":6.6094, "readOpsHighPer10000":71.6011, "storagePerGBPerMonth":0.0010 }, "hot": { "writeOpsPer10000":0.05, "storagePerGBPerMonth":0.018 }, "cool": { "writeOpsPer10000":0.10, "storagePerGBPerMonth":0.01 }, "cold": { "writeOpsPer10000":0.18, "storagePerGBPerMonth":0.0045 } } } } - Refactor PricingConfig (currently internal sealed record in RestoreCostCalculator.cs) into src/Arius.Core/Shared/Pricing/PricingCatalog.cs: - PricingCatalog.LoadEmbedded() → IReadOnlyDictionary Regions, IReadOnlyList RegionNames, and RegionPricing GetRegion(string? region) (returns the region's rates; falls back to the default — first/westeurope — when null/"Unknown"/missing). Keep the existing LoadEmbedded resource-stream idiom. - RegionPricing holds Currency + the four tiers (same fields as today, plus archive storage rate). - RestoreCostCalculator stays as the restore-only calculator but consumes the new shape (GetRegion(default) → identical numbers for WE). Minimal change; behavior preserved. 1b. Account location end-to-end (backend) - src/Arius.Api/AppData/AppDatabase.cs: add location TEXT to the storage_accounts CREATE TABLE, plus an additive migration in CreateOrUpgradeSchema (check PRAGMA table_info(storage_accounts), ALTER TABLE ... ADD COLUMN location if absent). Update ReadAccount/ListAccounts/GetAccount, extend InsertAccount(name, key, location), and add UpdateAccount(id, encryptedKey?, location?) using the COALESCE($x, col) "null leaves unchanged" idiom already used by UpdateRepository. - src/Arius.Api/AppData/Records.cs: add string? Location to AccountRecord. - src/Arius.Api/Contracts/Dtos.cs: AccountDto += string? Location; CreateAccountRequest += string? Location; new UpdateAccountRequest(string? AccountKey, string? Location). - src/Arius.Api/Endpoints/AccountEndpoints.cs: include Location in ToDto/POST; add GET /accounts/{id} (flyout load) and PATCH /accounts/{id} (key+location; secrets.Protect the key only when supplied). For each repo under the account: on key change registry.Evict(repoId) (new key takes effect); on region change also db.ClearStatisticsCache(repoId) (cost recomputes). Add a small ListRepositoryIdsForAccount(accountId) helper (or filter ListRepositories()). Optional DELETE /accounts/{id} guarded by CountRepositoriesForAccount for the flyout danger-zone. - New GET /pricing/regions (app-level, no provider): a small PricingEndpoints.cs returning PricingCatalog.RegionNames (needs a public accessor on the catalog). Frontend appends "Unknown / Not in list". Map it in Program.cs. 1c. Server-side folder browser (backend) - New src/Arius.Api/Endpoints/FilesystemEndpoints.cs: GET /fs/list?path= returns immediate subdirectories ({ name, path }[]) of path on the API host, with a default root and graceful handling of not-found/no-permission. Reuse traversal patterns from Arius.Core/Features/ListQuery/LocalDirectoryReader.cs (enumerate-with-degradation). Map in Program.cs. 1d. Overview "Storage Accounts" section (frontend) - src/app/features/overview/overview.component.ts: add a new .ar-card section below the Repositories table (clone the markup at lines 44–80). Columns: Account | Region | Repositories. accounts = toSignal(this.api.listAccounts()); each row (click)="editAccount(a.id)" → drawer.openAccount(a.id); show a.location ?? 'Unknown' and a.repositories. 1e. Edit-account flyout (frontend) - src/app/core/state/drawer.store.ts: extend DrawerType with 'account'; add accountId = signal(0) and openAccount(accountId) (mirrors openProperties). - New src/app/features/drawer/account-drawer.component.ts (clone properties-drawer.component.ts scrim/ar-drawer/animations). Header "Edit storage account". Loads via api.getAccount(id). Fields: Account name (read-only), Account key (password, "replace to rotate"), Region ( sourced from api.getRegions() (+ "Unknown / Not in list"); pass it to createAccount(name, key, region). - Extend api.createAccount + CreateAccountRequest with location (see 3, API layer below). 1g. Add-repo screen polish (frontend, Group 1 #3) - Mandatory fields red: add a shared .ar-req convention (red asterisk on the label, and/or red border when required-and-empty). Apply to genuinely required fields (Account name, Account key, Container selection, Passphrase). Region is not required (Unknown is valid). - Friendly alias optional: in add-repo-wizard.component.ts change the create button guard [disabled]="!selectedContainer() || !alias" (line 71) → [disabled]="!selectedContainer()", and in add() default alias: this.alias || this.selectedContainer(). (In the create wizard, alias seeds the generated container name, so it stays effectively required there — only add red markers.) - Local path [...]: new shared src/app/shared/folder-picker/ (a [...] button + popover that calls api.listDirectories(path), lets the user navigate, returns the chosen API-side path). Wire it into the local-path input of add-repo-wizard (line 67); reuse in create-repo-wizard (line 49) and properties-tab (line 44) for consistency. 1h. Properties page cleanup (frontend, Group 1 #2) - src/app/features/repo/properties/properties-tab.component.ts: remove the "Account key" field block (lines 25–29), the accountKey field (line 112) and its reset() assignment (line 163) — save() already omits it. Rename label "Encryption passphrase" → "Passphrase" (line 31). Update the component doc comment (line 8). No backend/DTO change needed (key was never a repo property). --- Group 2 — Region-aware Cost Calculator 2a. Extend StatisticsQuery with cost — calculation in Core, switch to IQuery - src/Arius.Core/Features/StatisticsQuery/StatisticsQuery.cs: - Change StatisticsQuery from ICommand → IQuery, and the handler from ICommandHandler<,> → IQueryHandler<,>. Add a region parameter: StatisticsQuery(string? Version = null, bool EnsureFullCoverage = false, string? Region = null). - Extend the result: add Currency, Region, TotalStorageCostPerMonth to RepositoryStatistics, and change StoredByTier from IReadOnlyList to a statistics-specific IReadOnlyList where TierStatistic(BlobTier Tier, long UniqueChunks, long StoredSize, double CostPerMonth). (Leave the chunk-index domain type ChunkTierStatistic untouched — don't pollute it with pricing.) - In the handler: after computing byTier (as today), call the new StorageCostCalculator to map each ChunkTierStatistic → TierStatistic with CostPerMonth = (StoredSize / 1024³) * region..StoragePerGbMonth (same GiB convention as RestoreCostCalculator), and sum TotalStorageCostPerMonth; set Currency/Region from the resolved region. - New src/Arius.Core/Shared/Pricing/StorageCostCalculator.cs — region-aware, owns PricingCatalog; sibling to RestoreCostCalculator. This is "the cost calculator that feeds the component," now invoked inside StatisticsQuery. Register it as a singleton in AddArius and inject into StatisticsQueryHandler. - Update registration in src/Arius.Core/ServiceCollectionExtensions.cs (line 177): ICommandHandler → IQueryHandler, and pass the StorageCostCalculator into the handler factory. - Update src/Arius.Core.Tests/Features/StatisticsQuery/StatisticsQueryHandl erTests.cs: the handler is constructed directly (new StatisticsQueryHandler(snapshot, index, logger)) — add the StorageCostCalculator arg and assert the new per-tier CostPerMonth / TotalStorageCostPerMonth. 2b. Cost in the stats DTO + endpoint (API) - src/Arius.Api/Contracts/Dtos.cs: extend TierStatisticsDto with double CostPerMonth (and optionally the rate CostPerGbMonth); extend StatisticsDto with string Currency, string Region, double TotalStorageCostPerMonth. No new DTO/endpoint. - src/Arius.Api/Endpoints/BrowseEndpoints.cs (GET /repos/{id}/stats, lines 35–60): read the repo→account→location from AppDatabase, pass it into mediator.Send(new StatisticsQuery(version, fullFlag, location)), and extend the TierStatisticsDto projection (line 56) + StatisticsDto with the cost fields. The existing app-DB memoization is unchanged; freshness on region change is handled by cache invalidation in the account PATCH (1b). 2c. Shared CostCalculator component (frontend) replacing "Stored size by tier" - New src/app/shared/cost-calculator/cost-calculator.component.ts implementing the design handoff (Statistics Tab v2.dc.html): a 100%-stacked hero bar (total-scaled %), legend, detail table Tier | Stored | Chunks | Est. cost/mo, and a grand-total footer. Input: the StatisticsDto (or just its storedByTier + currency + totalStorageCostPerMonth). Each tier already carries storedSize, uniqueChunks, costPerMonth, so the component does no arithmetic — it renders finished numbers. Reuse TIER_COLORS, formatBytes, formatCount; add formatCurrency(amount, currency) to src/app/shared/format.ts. - src/app/features/repo/statistics/statistics-tab.component.ts: replace the inline tier block (lines 24–40) with . No extra fetch — the tab already loads StatisticsDto, which now carries cost. KPI cards unchanged. Update the info-banner copy per the handoff. --- Shared API layer (frontend) — both groups src/app/core/api/api-models.ts: AccountDto += location: string | null; extend StatisticsDto (currency, region, totalStorageCostPerMonth) + TierStatisticsDto (costPerMonth); optional UpdateAccountRequest. src/app/core/api/api.service.ts: extend createAccount(name, key, location); add getAccount(id), updateAccount(id, {accountKey?, location?}) (PATCH), getRegions(), listDirectories(path). No separate cost call — cost rides on the existing getStatistics. --- Files at a glance Area: Pricing (Core) Create: Shared/Pricing/PricingCatalog.cs, Shared/Pricing/StorageCostCalculator.cs, Shared/Pricing/pricing.json (moved) Modify: Arius.Core.csproj (resource path), Features/RestoreCommand/RestoreCostCalculator.cs ──────────────────────────────────────── Area: Statistics + cost (Core) Create: — Modify: Features/StatisticsQuery/StatisticsQuery.cs (→ IQuery, +region, +cost), ServiceCollectionExtensions.cs:177, Arius.Core.Tests/.../StatisticsQueryHandlerTests.cs ──────────────────────────────────────── Area: DB / API Create: Endpoints/PricingEndpoints.cs, Endpoints/FilesystemEndpoints.cs Modify: AppData/AppDatabase.cs, AppData/Records.cs, Contracts/Dtos.cs, Endpoints/AccountEndpoints.cs, Endpoints/BrowseEndpoints.cs, Program.cs ──────────────────────────────────────── Area: Frontend Create: features/drawer/account-drawer.component.ts, shared/cost-calculator/cost-calculator.component.ts, shared/folder-picker/* Modify: overview.component.ts, core/state/drawer.store.ts, app.component.ts, wizards/create/*, wizards/add/*, repo/properties/properties-tab.component.ts, repo/statistics/statistics-tab.component.ts, core/api/api.service.ts, core/api/api-models.ts, shared/format.ts Reuse (don't reinvent) - Drawer flyout: DrawerStore + properties-drawer.component.ts pattern (scrim/ar-drawer/ar-fade/ar-slide). - List section markup: Overview Repositories table (lines 44–80). - Form styling: .ar-field/.ar-input/.ar-seg/.ar-radio (already in every wizard/properties component). - Mediator query recipe: StatisticsQuery.cs + its registration; endpoint dispatch in BrowseEndpoints.cs. - DB idioms: COALESCE partial-update (UpdateRepository), ReadAccount reader, CountRepositoriesForAccount guard, PricingConfig.LoadEmbedded resource-stream loader. - Formatting: shared/format.ts (formatBytes/formatCount), TIER_COLORS. Verification - Backend: dotnet build (Arius.Api/Core; note Arius.Web is not in the slnx). Run the API on :5080. Check existing Core tests for pricing/RestoreCost (the pricing.json move + restructure will touch them) — dotnet test src/Arius.Core.Tests. - Frontend: cd src/Arius.Web && npm start (API on :5080). Manually verify: Overview shows Storage Accounts; New/Add wizards' "Add new account" shows a region dropdown; mandatory fields are red; clicking an account opens the flyout to edit key + region; Properties has no Account key field and shows "Passphrase"; Add-repo alias is optional (defaults to container) and local path has a working [...] picker; Statistics tab shows the cost-aware tier breakdown with per-tier Est. cost/mo + grand total. - e2e/unit (Playwright + Karma): update specs whose markup/flow changed — overview.spec, create-wizard.spec, add-wizard.spec, properties.spec, statistics.spec, statistics-tiers.spec (preserve/extend data-testids; add ids for the region select, folder picker, account drawer, cost table). Run npm run e2e and ng test. ⏺ The plan is approved. Let me set up task tracking and start implementing, beginning with the backend Core pricing layer. First, let me load the task tools and read the remaining files I'll modify. ⏺ Let me create the task list and read the backend files I need to modify accurately. ⏺ Now let me read the backend files I need before editing — RestoreCommandHandler's calculator usage, the csproj, the existing tests, and Program.cs. Read 3 files (ctrl+o to expand) ⏺ Let me find the RestoreCostCalculator tests and check the RestoreCostEstimate is public (it's returned via SignalR). Let me also check how PricingConfig/RestoreCostCalculator are referenced elsewhere. Ran 1 shell command (ctrl+o to expand) ⏺ There are existing tests directly referencing the internal PricingConfig/ArchivePricingTier/TierPricingConfig types (via InternalsVisibleTo). I'll rename PricingConfig → RegionPricing and move to Shared/Pricing, keeping the tier sub-records. Let me read those two test files to update them precisely. Read 2 files (ctrl+o to expand) ⏺ I have enough to preserve the existing tests with minimal churn. Let me verify the BlobTier namespace and that InternalsVisibleTo exists for the test project, then write the Core pricing layer. Ran 1 shell command (ctrl+o to expand) ⏺ BlobTier is Arius.Core.Shared.Storage (public); ChunkTierStatistic is Arius.Core.Shared.ChunkIndex; tests have InternalsVisibleTo. Starting Task #1 — the Core pricing layer. ⏺ Write(src/Arius.Core/Shared/Pricing/pricing.json) ⎿  Wrote 28 lines to src/Arius.Core/Shared/Pricing/pricing.json 1 { 2 "_comment": "Azure Blob Storage pricing, keyed by programmatic details/storage/blobs/ — add a region here to make it selectable in the UI and priced.", 3 "regions": { 5 "currency": "EUR", 6 "_comment": "West Europe. Last updated: 2026-03.", 7 "archive": { 9 "retrievalHighPerGB": 0.1102, 10 "readOpsPer10000": 6.6094, … +21 lines (ctrl+o to expand) ⏺ Write(src/Arius.Core/Shared/Pricing/PricingCatalog.cs) ⎿  Wrote 138 lines to src/Arius.Core/Shared/Pricing/PricingCatalog.cs 1 using System.Text.Json; 2 using System.Text.Json.Serialization; 4 5 namespace Arius.Core.Shared.Pricing; 6 8 /// The canonical, region-keyed Azure Blob Storage pricing — the single source of truth loaded from the 9 /// embedded pricing.json. Both the restore-cost path (StorageCostCalculator) resolve the ir rates through here, and the set of … +162 lines (ctrl+o to expand) ⏺ Write(src/Arius.Core/Shared/Pricing/StorageCostCalculator.cs) ⎿  Wrote 47 lines to src/Arius.Core/Shared/Pricing/StorageCostCalculator.cs 1 using Arius.Core.Shared.ChunkIndex; 2 using Arius.Core.Shared.Storage; 4 namespace Arius.Core.Shared.Pricing; 5 6 /// ored sizes and the region's published 8 /// storage rates. Region-aware sibling of RestoreCostCalcula tor (which stays restore-specific); . 10 /// … +50 lines (ctrl+o to expand) ⏺ Now refactor RestoreCostCalculator.cs to use the shared RegionPricing/PricingCatalog (removing the embedded pricing types), and update the csproj resource path + remove the old json. ⏺ Update(src/Arius.Core/Features/RestoreCommand/RestoreCostCalculator.cs) ⎿  Added 5 lines, removed 4 lines 1 -using System.Text.Json; 2 -using System.Text.Json.Serialization; 1 +using Arius.Core.Shared.Pricing; 2 3 namespace Arius.Core.Features.RestoreCommand; 4 5 /// 6 /// Computes the restore cost estimate shown before downloads o r rehydration begin. 7 +/// Restore-specific; storage-by-tier cost lives in . Both read 8 +/// their rates from the shared . 9 /// 9 -internal sealed class RestoreCostCalculator(PricingConfig? pric -ing) 10 +internal sealed class RestoreCostCalculator(RegionPricing? pric +ing) 11 { 11 - private readonly PricingConfig _pricing = pricing ?? Pricin -gConfig.LoadEmbedded(); 12 + private readonly RegionPricing _pricing = pricing ?? Pricin +gCatalog.LoadEmbedded().Resolve(null).Pricing; 13 14 /// 15 /// Computes a from class ified chunk counts and byte totals. ⏺ Now remove the old embedded pricing-config types from RestoreCostCalculator.cs (lines 65-140, now moved to PricingCatalog.cs). Let me view the current state of that region. Read 1 file (ctrl+o to expand) ⏺ Update(src/Arius.Core/Features/RestoreCommand/RestoreCostCalculator.cs) ⎿  Removed 77 lines 63 } 64 } 65 66 -// --- PRICING CONFIG 66 68 -/// 69 -/// Restore pricing configuration loaded from pricing.json< -/c>. 70 -/// 71 -internal sealed record PricingConfig 72 -{ 73 - [JsonPropertyName("archive")] 74 - public ArchivePricingTier Archive { get; init; } = new(); 75 - 76 - [JsonPropertyName("hot")] 77 - public TierPricingConfig Hot { get; init; } = new(); 78 - 79 - [JsonPropertyName("cool")] 80 - public TierPricingConfig Cool { get; init; } = new(); 81 - 82 - [JsonPropertyName("cold")] 83 - public TierPricingConfig Cold { get; init; } = new(); 84 - 85 - // ── Loading ──────────────────────────────────────────── -─────────────────── 86 - 87 - private static readonly JsonSerializerOptions _jsonOptions - = new() 88 - { 89 - PropertyNameCaseInsensitive = true, 90 - ReadCommentHandling = JsonCommentHandling.Skip, 91 - AllowTrailingCommas = true, 92 - }; 93 - 94 - public static PricingConfig LoadEmbedded() 95 - { 96 - var assembly = typeof(PricingConfig).Assembly; 97 - var resourceName = assembly.GetManifestResourceNames() 98 - .FirstOrDefault(n => n.EndsWith -("pricing.json", StringComparison.OrdinalIgnoreCase)) 99 - ?? throw new InvalidOperationExcept -ion("Embedded pricing.json resource not found."); 100 - 101 - using var stream = assembly.GetManifestResourceStream( -resourceName)!; 102 - var result = JsonSerializer.Deserialize -(stream, _jsonOptions); 103 - return result ?? throw new InvalidOperationException(" -Embedded pricing.json deserialized to null."); 104 - } 105 -} 106 - 107 -/// 108 -/// Pricing rates used for archive-tier retrieval and read ope -rations. 109 -/// 110 -internal sealed record ArchivePricingTier 111 -{ 112 - /// EUR per GB of data retrieved from Archive at -Standard priority. 113 - [JsonPropertyName("retrievalPerGB")] 114 - public double RetrievalPerGB { get; init; } 115 - 116 - /// EUR per GB of data retrieved from Archive at -High priority. 117 - [JsonPropertyName("retrievalHighPerGB")] 118 - public double RetrievalHighPerGB { get; init; } 119 - 120 - /// EUR per 10,000 read operations at Standard pr -iority. 121 - [JsonPropertyName("readOpsPer10000")] 122 - public double ReadOpsPer10000 { get; init; } 123 - 124 - /// EUR per 10,000 read operations at High priori -ty. 125 - [JsonPropertyName("readOpsHighPer10000")] 126 - public double ReadOpsHighPer10000 { get; init; } 127 -} 128 - 129 -/// 130 -/// Pricing rates used for writing and storing rehydrated chun -k copies in a target tier. 131 -/// 132 -internal sealed record TierPricingConfig 133 -{ 134 - /// EUR per 10,000 write operations. 135 - [JsonPropertyName("writeOpsPer10000")] 136 - public double WriteOpsPer10000 { get; init; } 137 - 138 - /// EUR per GB stored per month. 139 - [JsonPropertyName("storagePerGBPerMonth")] 140 - public double StoragePerGBPerMonth { get; init; } 141 -} 142 - 143 - 67 // --- COST ESTIMATE 68 69 /// ⏺ Now update the csproj resource path and remove the old pricing.json. ⏺ Update(src/Arius.Core/Arius.Core.csproj) ⎿  Added 1 line, removed 1 line 7 8 9 10 - 10 + 11 12 13 Ran 1 shell command (ctrl+o to expand) ⏺ Now update the two pricing test files to the renamed RegionPricing (the tier sub-records keep their names) and add the new using. ⏺ Update(src/Arius.Core.Tests/Features/RestoreCommand/RestoreCostCalculatorTests .cs) ⎿  Added 2 lines, removed 1 line 1 using Arius.Core.Features.RestoreCommand; 2 +using Arius.Core.Shared.Pricing; 3 4 namespace Arius.Core.Tests.Features.RestoreCommand; 5 6 public class RestoreCostCalculatorTests 7 { 8 // Deterministic pricing config for all tests 8 - private static readonly PricingConfig _pricing = new() 9 + private static readonly RegionPricing _pricing = new() 10 { 11 Archive = new ArchivePricingTier 12 { ⏺ Update(src/Arius.Core.Tests/Features/RestoreCommand/PricingConfigTests.cs) ⎿  Added 1 line 1 using System.Text.Json; 2 using Arius.Core.Features.RestoreCommand; 3 +using Arius.Core.Shared.Pricing; 4 5 namespace Arius.Core.Tests.Features.RestoreCommand; 6 ⏺ Update(src/Arius.Core.Tests/Features/RestoreCommand/PricingConfigTests.cs) ⎿  Added 1 line, removed 1 line 28 [Test] 29 public void JsonRoundTrip_MalformedJson_ThrowsJsonException () 30 { 31 - Should.Throw(() => JsonSerializer.Deseri -alize("{ not valid json !!!")); 31 + Should.Throw(() => JsonSerializer.Deseri +alize("{ not valid json !!!")); 32 } 33 34 [Test] ⏺ Update(src/Arius.Core.Tests/Features/RestoreCommand/PricingConfigTests.cs) ⎿  Added 2 lines, removed 2 lines 84 85 private static readonly long OneGBBytes = 1L * 1024 * 1024 * 1024; 86 87 - private static PricingConfig CreatePricingConfig( 87 + private static RegionPricing CreatePricingConfig( 88 double retrievalPerGb = 1.0, 89 double retrievalHighPerGb = 5.0, 90 double readOpsPer10000 = 2.0, ... 92 double hotWriteOpsPer10000 = 0.1, 93 double hotStoragePerGbPerMonth = 0.02) 94 { 95 - return new PricingConfig 95 + return new RegionPricing 96 { 97 Archive = new ArchivePricingTier 98 { ⏺ Task #1 done. Now Task #2 — StatisticsQuery → IQuery with region + cost. ⏺ Update(src/Arius.Core/Features/StatisticsQuery/StatisticsQuery.cs) ⎿  Added 7 lines, removed 2 lines 1 using Arius.Core.Shared.ChunkIndex; 2 +using Arius.Core.Shared.Pricing; 3 using Arius.Core.Shared.Snapshot; 4 using Mediator; 5 using Microsoft.Extensions.Logging; ... 9 // --- QUERY 10 11 /// 11 -/// Mediator command: aggregate repository statistics for the S -tatistics view. 12 +/// Mediator query: aggregate repository statistics (incl. regi +on-aware per-tier storage cost) for the Statistics view. 13 /// 14 /// Snapshot version (partial match). null = latest. 15 /// ... 17 /// figures, so they are complete rather than reflecting only b rowsed coverage. Slower (downloads the 18 /// whole index, etag-cached on repeat); the caller lazy-loads the storage section behind this. 19 /// 19 -public sealed record StatisticsQuery(string? Version = null, bo -ol EnsureFullCoverage = false) : ICommand -; 20 +/// 21 +/// Programmatic Azure region (e.g. westeurope) used to +price the per-tier storage cost. null, 22 +/// "Unknown", or an unknown region falls back to the pricing c +atalog's default region. 23 +/// 24 +public sealed record StatisticsQuery(string? Version = null, bo +ol EnsureFullCoverage = false, string? Region = null) : IQuery< +RepositoryStatistics>; 25 26 // --- RESULT 27 ⏺ Update(src/Arius.Core/Features/StatisticsQuery/StatisticsQuery.cs) ⎿  Added 8 lines, removed 2 lines 42 /// and compressed (from the chunk index; repository-wide acros s all snapshots). 43 /// 44 /// Number of distinct chunks (from the chunk index; repository-wide). 45 -/// Distinct-chunk count and stored -size split by storage tier (repository-wide). 45 +/// ISO currency code the cost figures a +re expressed in (from the pricing catalog, e.g. EUR).

46 +/// The region actually used to price stor +age (the requested region, or the catalog default). 47 +/// Estimated total mont +hly storage cost across all tiers, in . 48 +/// Distinct-chunk count, stored siz +e, and estimated monthly cost split by storage tier (repository +-wide). 49 /// 50 /// An empty repository (no snapshot yet) reports all-zero figu res. and 51 /// are scoped to the resolved snaps hot; the deduplicated/stored/chunk figures ... 58 long DeduplicatedSize, 59 long StoredSize, 60 long UniqueChunks, 58 - IReadOnlyList StoredByTier); 61 + string Currency, 62 + string Region, 63 + double TotalStorageCostPerMonth, 64 + IReadOnlyList StoredByTier); 65 66 // --- HANDLER 67 ⏺ Update(src/Arius.Core/Features/StatisticsQuery/StatisticsQuery.cs) ⎿  Added 16 lines, removed 8 lines 72 public sealed class StatisticsQueryHandler( 73 ISnapshotService snapshots, 74 IChunkIndexService chunkIndex, 75 + StorageCostCalculator storageCost, 76 ILogger logger) 76 - : ICommandHandler 77 + : IQueryHandler 78 { 79 public async ValueTask Handle(Statist icsQuery query, CancellationToken cancellationToken) 80 { ... 83 if (snapshot is null) 84 { 85 logger.LogDebug("[stats] no snapshot for version {V ersion}; returning empty stats", query.Version ?? ""); 85 - return new RepositoryStatistics(0, 0, 0, 0, 0, []); 86 + var emptyCost = storageCost.Compute(query.Region, [ +]); 87 + return new RepositoryStatistics(0, 0, 0, 0, 0, empt +yCost.Currency, emptyCost.Region, 0, emptyCost.Tiers); 88 } 89 90 // ── Stage 2: chunk-index aggregate (deduplicated orig inal size + distinct chunks by tier) ── ... 95 var chunkStats = chunkIndex.GetStatistics(); 96 var byTier = chunkStats.ByTier; 97 98 + // ── Stage 3: price the per-tier stored size for the +account's region ── 99 + var cost = storageCost.Compute(query.Region, byTier); 100 + 101 return new RepositoryStatistics( 97 - Files: snapshot.FileCount, 98 - OriginalSize: snapshot.OriginalSize, 99 - DeduplicatedSize: chunkStats.DeduplicatedOriginalS -ize, 100 - StoredSize: byTier.Sum(t => t.StoredSize), 101 - UniqueChunks: byTier.Sum(t => t.UniqueChunks), 102 - StoredByTier: byTier); 102 + Files: snapshot.FileCount, 103 + OriginalSize: snapshot.OriginalSize, 104 + DeduplicatedSize: chunkStats.DeduplicatedO +riginalSize, 105 + StoredSize: byTier.Sum(t => t.Stored +Size), 106 + UniqueChunks: byTier.Sum(t => t.Unique +Chunks), 107 + Currency: cost.Currency, 108 + Region: cost.Region, 109 + TotalStorageCostPerMonth: cost.TotalPerMonth, 110 + StoredByTier: cost.Tiers); 111 } 112 } ⏺ Now update ServiceCollectionExtensions.cs: register StorageCostCalculator and switch the handler to IQueryHandler. ⏺ Update(src/Arius.Core/ServiceCollectionExtensions.cs) ⎿  Added 5 lines, removed 1 line 174 sp.GetRequiredService(), 175 sp.GetRequiredService>())); 176 177 - services.AddSingleton>(sp => 177 + // Shared, region-aware storage pricing (owns the embe +dded pricing.json catalog). 178 + services.AddSingleton(_ => new +StorageCostCalculator()); 179 + 180 + services.AddSingleton>(sp => 181 new StatisticsQueryHandler( 182 sp.GetRequiredService(), 183 sp.GetRequiredService(), 184 + sp.GetRequiredService() +, 185 sp.GetRequiredService>())); 186 187 return services; ⏺ Add the using for the pricing namespace in ServiceCollectionExtensions.cs. ⏺ Update(src/Arius.Core/ServiceCollectionExtensions.cs) ⎿  Added 1 line 11 using Arius.Core.Shared.Compression; 12 using Arius.Core.Shared.Encryption; 13 using Arius.Core.Shared.FileTree; 14 +using Arius.Core.Shared.Pricing; 15 using Arius.Core.Shared.Snapshot; 16 using Arius.Core.Shared.Storage; 17 using Mediator; ⏺ Now update StatisticsQueryHandlerTests.cs — add the StorageCostCalculator constructor arg and cost assertions. ⏺ Update(src/Arius.Core.Tests/Features/StatisticsQuery/StatisticsQueryHandlerTes ts.cs) ⎿  Added 1 line 1 using Arius.Core.Features.StatisticsQuery; 2 using Arius.Core.Shared.ChunkIndex; 3 using Arius.Core.Shared.Compression; 4 +using Arius.Core.Shared.Pricing; 5 using Arius.Core.Shared.Snapshot; 6 using Arius.Core.Tests.Fakes; 7 using Arius.Tests.Shared; ⏺ Update(src/Arius.Core.Tests/Features/StatisticsQuery/StatisticsQueryHandlerTes ts.cs) ⎿  Added 1 line, removed 1 line 35 fixture.Index.AddEntry(new ShardEntry(ContentHashOf("b" ), FakeChunkHash('a'), OriginalSize: 200, ChunkSize: 40, BlobTi er.Cool)); 36 fixture.Index.AddEntry(new ShardEntry(ContentHashOf("c" ), FakeChunkHash('b'), OriginalSize: 300, ChunkSize: 50, BlobTi er.Cool)); 37 38 - var handler = new StatisticsQueryHandler(fixture.Snapsh -ot, fixture.Index, NullLogger.Instance) -; 38 + var handler = new StatisticsQueryHandler(fixture.Snapsh +ot, fixture.Index, new StorageCostCalculator(), NullLogger.Instance); 39 var stats = await handler.Handle(new StatisticsQueryTyp e(), CancellationToken.None); 40 41 stats.Files.ShouldBe(3); ⏺ Update(src/Arius.Core.Tests/Features/StatisticsQuery/StatisticsQueryHandlerTes ts.cs) ⎿  Added 10 lines, removed 1 line 71 fixture.Index.AddEntry(new ShardEntry(ContentHashOf("a" ), FakeChunkHash('a'), OriginalSize: 100, ChunkSize: 40, BlobTi er.Cool)); 72 fixture.Index.AddEntry(new ShardEntry(ContentHashOf("b" ), FakeChunkHash('b'), OriginalSize: 400, ChunkSize: 60, BlobTi er.Archive)); 73 74 - var handler = new StatisticsQueryHandler(fixture.Snapsh -ot, fixture.Index, NullLogger.Instance) -; 74 + var handler = new StatisticsQueryHandler(fixture.Snapsh +ot, fixture.Index, new StorageCostCalculator(), NullLogger.Instance); 75 var stats = await handler.Handle(new StatisticsQueryTyp e(), CancellationToken.None); 76 77 stats.UniqueChunks.ShouldBe(2); ... 84 stats.StoredByTier[0].StoredSize.ShouldBe(40); 85 stats.StoredByTier[1].Tier.ShouldBe(BlobTier.Archive); 86 stats.StoredByTier[1].StoredSize.ShouldBe(60); 87 + 88 + // Cost: no region requested → default region (westeuro +pe/EUR) from the embedded pricing catalog. 89 + // Each tier's cost = storedSize / 1024³ × that tier's +storagePerGBPerMonth (West Europe rates). 90 + const double giB = 1024.0 * 1024.0 * 1024.0; 91 + stats.Currency.ShouldBe("EUR"); 92 + stats.Region.ShouldBe("westeurope"); 93 + stats.StoredByTier[0].CostPerMonth.ShouldBe(40 / giB * +0.01, tolerance: 1e-18); // Cool @ 0.01 94 + stats.StoredByTier[1].CostPerMonth.ShouldBe(60 / giB * +0.0010, tolerance: 1e-18); // Archive @ 0.0010 95 + stats.TotalStorageCostPerMonth.ShouldBe(stats.StoredByT +ier.Sum(t => t.CostPerMonth), tolerance: 1e-18); 96 } 97 98 [Test] ⏺ Update(src/Arius.Core.Tests/Features/StatisticsQuery/StatisticsQueryHandlerTes ts.cs) ⎿  Added 7 lines, removed 1 line 101 var blobs = new FakeSeededBlobContainerService(); 102 await using var fixture = await RepositoryTestFixture. CreateWithEncryptionAsync(blobs, "acct-stats-empty", "ctr-stat s-empty", IEncryptionService.PlaintextInstance); 103 104 - var handler = new StatisticsQueryHandler(fixture.Snaps -hot, fixture.Index, NullLogger.Instanc -e); 104 + var handler = new StatisticsQueryHandler(fixture.Snaps +hot, fixture.Index, new StorageCostCalculator(), NullLogger.Instance); 105 var stats = await handler.Handle(new StatisticsQueryTy pe(), CancellationToken.None); 106 107 stats.Files.ShouldBe(0); ... 109 stats.DeduplicatedSize.ShouldBe(0); 110 stats.UniqueChunks.ShouldBe(0); 111 stats.StoredSize.ShouldBe(0); 112 + 113 + // Even with no snapshot, the region/currency resolve +and the total cost is zero. 114 + stats.Currency.ShouldBe("EUR"); 115 + stats.Region.ShouldBe("westeurope"); 116 + stats.TotalStorageCostPerMonth.ShouldBe(0); 117 + stats.StoredByTier.ShouldBeEmpty(); 118 } 119 } ⏺ Let me build Arius.Core to catch compile errors early before moving to the API layer. Ran 1 shell command (ctrl+o to expand) ⏺ Accessibility errors — RepositoryStatistics (public, the Mediator result consumed by Arius.Api) references internal TierStorageCost/StorageCostCalculator. Let me make those public (like the existing public RestoreCostEstimate). ⏺ Update(src/Arius.Core/Shared/Pricing/StorageCostCalculator.cs) ⎿  Added 1 line, removed 1 line 8 /// storage rates. Region-aware sibling of RestoreCostCalcul ator (which stays restore-specific); 9 /// both read rates from the shared . 10 /// 11 -internal sealed class StorageCostCalculator(PricingCatalog? cat -alog = null) 11 +public sealed class StorageCostCalculator(PricingCatalog? catal +og = null) 12 { 13 // Match RestoreCostCalculator: GB means GiB (1024^3 bytes) . 14 private const double BytesPerGiB = 1024.0 * 1024.0 * 1024.0 ; ⏺ Update(src/Arius.Core/Shared/Pricing/StorageCostCalculator.cs) ⎿  Added 2 lines, removed 2 lines 37 } 38 39 /// Per-tier stored size + distinct-chunk count, paire d with the estimated monthly storage cost. 40 -internal sealed record TierStorageCost(BlobTier Tier, long Uniq -ueChunks, long StoredSize, double CostPerMonth); 40 +public sealed record TierStorageCost(BlobTier Tier, long Unique +Chunks, long StoredSize, double CostPerMonth); 41 42 /// Per-tier storage cost breakdown for one region, wi th the grand-total monthly cost. 43 -internal sealed record StorageCostBreakdown( 43 +public sealed record StorageCostBreakdown( 44 string Region, 45 string Currency, 46 IReadOnlyList Tiers, Ran 1 shell command (ctrl+o to expand) ⏺ Core builds clean (0 errors). Task #2 done. Now Task #3 — the API layer. Let me read Program.cs and RepositoryEndpoints.cs to match the endpoint-mapping + evict patterns. Read 2 files (ctrl+o to expand) ⏺ Now I have all the patterns. Let me implement the API changes. First, the DB records and schema. ⏺ Update(src/Arius.Api/AppData/Records.cs) ⎿  Added 5 lines, removed 2 lines 1 namespace Arius.Api.AppData; 2 3 -/// A configured Azure Storage account. is Data-Protection ciphertext. 4 -public sealed record AccountRecord(long Id, string Name, string -? EncryptedAccountKey, DateTimeOffset CreatedAt); 3 +/// 4 +/// A configured Azure Storage account. is Data-Protection ciphertext. 5 +/// is the programmatic Azure region (e. +g. westeurope), or null when unknown. 6 +/// 7 +public sealed record AccountRecord(long Id, string Name, string +? EncryptedAccountKey, string? Location, DateTimeOffset Created +At); 8 9 /// A managed repository (one blob container). is Data-Protection ciphertext. 10 public sealed record RepositoryRecord( ⏺ Now the AppDatabase.cs schema + migration + account methods. ⏺ Update(src/Arius.Api/AppData/AppDatabase.cs) ⎿  Added 1 line 41 id INTEGER PRIMARY KEY AUTOINCREMENT, 42 name TEXT NOT NULL UNIQUE, 43 account_key TEXT, 44 + location TEXT, 45 created_at TEXT NOT NULL 46 ); 47 ⏺ Update(src/Arius.Api/AppData/AppDatabase.cs) ⎿  Added 23 lines 94 ); 95 """; 96 create.ExecuteNonQuery(); 97 + 98 + // Additive migrations for databases created before a +column existed. SQLite has no 99 + // "ADD COLUMN IF NOT EXISTS", so guard with a column- +presence check (CREATE above already 100 + // includes these columns for fresh databases). 101 + EnsureColumn(connection, "storage_accounts", "location +", "TEXT"); 102 } 103 104 + /// Adds to if it is not already present. 105 + private static void EnsureColumn(SqliteConnection connecti +on, string table, string column, string typeAndConstraints) 106 + { 107 + using var info = connection.CreateCommand(); 108 + info.CommandText = $"PRAGMA table_info({table});"; 109 + using var reader = info.ExecuteReader(); 110 + while (reader.Read()) 111 + { 112 + if (string.Equals(reader.GetString(1), column, Str +ingComparison.OrdinalIgnoreCase)) 113 + return; // already present 114 + } 115 + reader.Close(); 116 + 117 + using var alter = connection.CreateCommand(); 118 + alter.CommandText = $"ALTER TABLE {table} ADD COLUMN { +column} {typeAndConstraints};"; 119 + alter.ExecuteNonQuery(); 120 + } 121 + 122 private SqliteConnection OpenConnection() 123 { 124 var connection = new SqliteConnection(_connectionStrin g); ⏺ Now the account read/list/get/insert + new UpdateAccount and ListRepositoryIdsForAccount, and the ReadAccount reader. ⏺ Update(src/Arius.Api/AppData/AppDatabase.cs) ⎿  Added 49 lines, removed 4 lines 132 { 133 using var connection = OpenConnection(); 134 using var command = connection.CreateCommand(); 135 - command.CommandText = "SELECT id, name, account_key, c -reated_at FROM storage_accounts ORDER BY name;"; 135 + command.CommandText = "SELECT id, name, account_key, l +ocation, created_at FROM storage_accounts ORDER BY name;"; 136 using var reader = command.ExecuteReader(); 137 var result = new List(); 138 while (reader.Read()) ... 144 { 145 using var connection = OpenConnection(); 146 using var command = connection.CreateCommand(); 147 - command.CommandText = "SELECT id, name, account_key, c -reated_at FROM storage_accounts WHERE id = $id;"; 147 + command.CommandText = "SELECT id, name, account_key, l +ocation, created_at FROM storage_accounts WHERE id = $id;"; 148 command.Parameters.AddWithValue("$id", id); 149 using var reader = command.ExecuteReader(); 150 return reader.Read() ? ReadAccount(reader) : null; 151 } 152 153 - public long InsertAccount(string name, string? encryptedAc -countKey) 153 + public long InsertAccount(string name, string? encryptedAc +countKey, string? location) 154 { 155 using var connection = OpenConnection(); 156 using var command = connection.CreateCommand(); 157 command.CommandText = """ 158 - INSERT INTO storage_accounts(name, account_key, cr -eated_at) VALUES ($name, $key, $createdAt); 158 + INSERT INTO storage_accounts(name, account_key, lo +cation, created_at) VALUES ($name, $key, $location, $createdAt +); 159 SELECT last_insert_rowid(); 160 """; 161 command.Parameters.AddWithValue("$name", name); 162 command.Parameters.AddWithValue("$key", (object?)encry ptedAccountKey ?? DBNull.Value); 163 + command.Parameters.AddWithValue("$location", (object?) +location ?? DBNull.Value); 164 command.Parameters.AddWithValue("$createdAt", DateTime Offset.UtcNow.ToString("O")); 165 return (long)command.ExecuteScalar()!; 166 } 167 168 + /// 169 + /// Updates an account's connection material. A null leaves the 170 + /// stored key unchanged (so the key need not be resupplie +d when only the region changes). 171 + /// is always written (pass the current value to leave it; + null clears it to "unknown"). 172 + /// 173 + public void UpdateAccount(long id, string? encryptedAccoun +tKey, string? location) 174 + { 175 + using var connection = OpenConnection(); 176 + using var command = connection.CreateCommand(); 177 + command.CommandText = """ 178 + UPDATE storage_accounts SET 179 + account_key = COALESCE($key, account_key), 180 + location = $location 181 + WHERE id = $id; 182 + """; 183 + command.Parameters.AddWithValue("$id", id); 184 + command.Parameters.AddWithValue("$key", (object?)encry +ptedAccountKey ?? DBNull.Value); 185 + command.Parameters.AddWithValue("$location", (object?) +location ?? DBNull.Value); 186 + command.ExecuteNonQuery(); 187 + } 188 + 189 + public void DeleteAccount(long id) 190 + { 191 + using var connection = OpenConnection(); 192 + using var command = connection.CreateCommand(); 193 + command.CommandText = "DELETE FROM storage_accounts WH +ERE id = $id;"; 194 + command.Parameters.AddWithValue("$id", id); 195 + command.ExecuteNonQuery(); 196 + } 197 + 198 public int CountRepositoriesForAccount(long accountId) 199 { 200 using var connection = OpenConnection(); ... 204 return (int)(long)command.ExecuteScalar()!; 205 } 206 207 + /// Repository ids belonging to an account — used + to evict providers / clear stats caches after an account chan +ge. 208 + public IReadOnlyList ListRepositoryIdsForAccount(lon +g accountId) 209 + { 210 + using var connection = OpenConnection(); 211 + using var command = connection.CreateCommand(); 212 + command.CommandText = "SELECT id FROM repositories WHE +RE account_id = $accountId;"; 213 + command.Parameters.AddWithValue("$accountId", accountI +d); 214 + using var reader = command.ExecuteReader(); 215 + var result = new List(); 216 + while (reader.Read()) 217 + result.Add(reader.GetInt64(0)); 218 + return result; 219 + } 220 + 221 // ── Repositories ─────────────────────────────────────── ─────────────────── 222 223 public IReadOnlyList ListRepositories() ⏺ Now update the ReadAccount reader for the new column order (id, name, account_key, location, created_at). ⏺ Update(src/Arius.Api/AppData/AppDatabase.cs) ⎿  Added 2 lines, removed 1 line 496 reader.GetInt64(0), 497 reader.GetString(1), 498 reader.IsDBNull(2) ? null : reader.GetString(2), 499 - DateTimeOffset.Parse(reader.GetString(3))); 499 + reader.IsDBNull(3) ? null : reader.GetString(3), 500 + DateTimeOffset.Parse(reader.GetString(4))); 501 502 private static RepositoryRecord ReadRepository(SqliteDataR eader reader) => new( 503 reader.GetInt64(0), ⏺ Now the DTOs. ⏺ Update(src/Arius.Api/Contracts/Dtos.cs) ⎿  Added 6 lines, removed 3 lines 2 3 // ── Accounts ──────────────────────────────────────────────── ──────────────── 4 5 -/// A storage account as shown to the client. The acco -unt key is never returned. 6 -public sealed record AccountDto(long Id, string Name, int Repos -itories, bool HasKey); 5 +/// A storage account as shown to the client. The acco +unt key is never returned. is the progra +mmatic Azure region (e.g. westeurope) or null whe +n unknown. 6 +public sealed record AccountDto(long Id, string Name, int Repos +itories, bool HasKey, string? Location); 7 8 -public sealed record CreateAccountRequest(string Name, string? -AccountKey); 8 +public sealed record CreateAccountRequest(string Name, string? +AccountKey, string? Location); 9 10 +/// Account-flyout update. A null leaves the stored key unchanged; is written as given (null = unknown). 11 +public sealed record UpdateAccountRequest(string? AccountKey, s +tring? Location); 12 + 13 // ── Repositories ──────────────────────────────────────────── ────────────────── 14 15 /// A repository as shown to the client. Secrets (key, passphrase) are never returned. ⏺ Update(src/Arius.Api/Contracts/Dtos.cs) ⎿  Added 12 lines, removed 3 lines 41 42 public sealed record SnapshotDto(string Version, DateTimeOffset Timestamp, long FileCount); 43 44 -public sealed record StatisticsDto(long Files, long OriginalSiz -e, long DeduplicatedSize, long StoredSize, long UniqueChunks, I -ReadOnlyList StoredByTier); 44 +public sealed record StatisticsDto( 45 + long Files, 46 + long OriginalSize, 47 + long DeduplicatedSize, 48 + long StoredSize, 49 + long UniqueChunks, 50 + string Currency, 51 + string Region, 52 + double TotalStorageCostPerMonth, 53 + IReadOnlyList StoredByTier); 54 46 -/// Stored size and distinct-chunk count for one stora -ge tier (Hot/Cool/Cold/Archive). 47 -public sealed record TierStatisticsDto(string Tier, long Unique -Chunks, long StoredSize); 55 +/// Stored size, distinct-chunk count, and estimated m +onthly storage cost for one storage tier (Hot/Cool/Cold/Archive +). 56 +public sealed record TierStatisticsDto(string Tier, long Unique +Chunks, long StoredSize, double CostPerMonth); 57 58 // ── Jobs / schedules ──────────────────────────────────────── ────────────────── 59 ⏺ Now AccountEndpoints.cs — location in ToDto/POST, plus GET/{id}, PATCH/{id}, DELETE/{id}. ⏺ Write(src/Arius.Api/Endpoints/AccountEndpoints.cs) ⎿  Added 53 lines, removed 2 lines 1 +using Arius.Api.Composition; 2 using Arius.Api.Contracts; 3 using Arius.Api.AppData; 4 ... 14 group.MapGet("/", (AppDatabase db) => 15 db.ListAccounts().Select(a => ToDto(db, a)).ToList( )); 16 17 + group.MapGet("/{id:long}", (long id, AppDatabase db) => 18 + { 19 + var account = db.GetAccount(id); 20 + return account is null ? Results.NotFound() : Resul +ts.Ok(ToDto(db, account)); 21 + }); 22 + 23 group.MapPost("/", (CreateAccountRequest request, AppDa tabase db, SecretProtector secrets) => 24 { 18 - var id = db.InsertAccount(request.Name, secrets.Pro -tect(request.AccountKey)); 25 + var id = db.InsertAccount(request.Name, secrets.Pro +tect(request.AccountKey), NormalizeLocation(request.Location)); 26 var account = db.GetAccount(id)!; 27 return Results.Created($"/accounts/{id}", ToDto(db, account)); 28 }); 29 + 30 + // Account-flyout edit: rotate the key and/or change th +e region. A null key in the request leaves 31 + // the stored key unchanged. Rotating the key invalidat +es cached providers; changing the region 32 + // invalidates memoized statistics (whose cost figures +are region-priced) for this account's repos. 33 + group.MapPatch("/{id:long}", (long id, UpdateAccountReq +uest request, AppDatabase db, SecretProtector secrets, Reposito +ryProviderRegistry registry) => 34 + { 35 + var existing = db.GetAccount(id); 36 + if (existing is null) 37 + return Results.NotFound(); 38 + 39 + var newLocation = NormalizeLocation(request.Locatio +n); 40 + var keyChanged = request.AccountKey is not null; 41 + var regionChanged = !string.Equals(existing.Locatio +n, newLocation, StringComparison.Ordinal); 42 + 43 + db.UpdateAccount(id, secrets.Protect(request.Accoun +tKey), newLocation); 44 + 45 + if (keyChanged || regionChanged) 46 + { 47 + foreach (var repoId in db.ListRepositoryIdsForA +ccount(id)) 48 + { 49 + if (keyChanged) registry.Evict(repoId); + // new key takes effect on rebuild 50 + if (regionChanged) db.ClearStatisticsCache( +repoId); // cost is region-priced → recompute 51 + } 52 + } 53 + 54 + return Results.Ok(ToDto(db, db.GetAccount(id)!)); 55 + }); 56 + 57 + group.MapDelete("/{id:long}", (long id, AppDatabase db) + => 58 + { 59 + if (db.GetAccount(id) is null) 60 + return Results.NotFound(); 61 + if (db.CountRepositoriesForAccount(id) > 0) 62 + return Results.Conflict("Account still has repo +sitories."); 63 + 64 + db.DeleteAccount(id); 65 + return Results.NoContent(); 66 + }); 67 } 68 69 + /// Treat blank / "unknown" as no region. 70 + private static string? NormalizeLocation(string? location) 71 + => string.IsNullOrWhiteSpace(location) || location.Equa +ls("unknown", StringComparison.OrdinalIgnoreCase) 72 + ? null 73 + : location.Trim(); 74 + 75 private static AccountDto ToDto(AppDatabase db, AccountReco rd account) 25 - => new(account.Id, account.Name, db.CountRepositoriesFo -rAccount(account.Id), account.EncryptedAccountKey is not null); 76 + => new(account.Id, account.Name, db.CountRepositoriesFo +rAccount(account.Id), account.EncryptedAccountKey is not null, +account.Location); 77 } ⏺ Now BrowseEndpoints.cs — resolve the account region and pass it to StatisticsQuery, mapping the new cost fields. ⏺ Update(src/Arius.Api/Endpoints/BrowseEndpoints.cs) ⎿  Added 8 lines, removed 2 lines 50 var snapshotBlobs = await snapshotService.ListBlo bNamesAsync(ct); 51 var fingerprint = snapshotBlobs.Count == 0 ? st ring.Empty : snapshotService.GetVersion(snapshotBlobs[^1]); 52 53 - var statistics = await mediator.Send(new Statistics -Query(version, fullFlag), ct); 53 + // The per-tier storage cost is priced for the acco +unt's region; a region change invalidates this 54 + // cache (see AccountEndpoints PATCH), so the cache +d payload's cost always matches the current region. 55 + var repository = database.GetRepository(id); 56 + var region = repository is null ? null : databa +se.GetAccount(repository.AccountId)?.Location; 57 + 58 + var statistics = await mediator.Send(new Statistics +Query(version, fullFlag, region), ct); 59 var dto = new StatisticsDto( 60 statistics.Files, statistics.OriginalSize, stat istics.DeduplicatedSize, statistics.StoredSize, statistics.Uniq ueChunks, 56 - statistics.StoredByTier.Select(t => new TierSta -tisticsDto(t.Tier.ToString(), t.UniqueChunks, t.StoredSize)).To -List()); 61 + statistics.Currency, statistics.Region, statist +ics.TotalStorageCostPerMonth, 62 + statistics.StoredByTier.Select(t => new TierSta +tisticsDto(t.Tier.ToString(), t.UniqueChunks, t.StoredSize, t.C +ostPerMonth)).ToList()); 63 64 database.UpsertCachedStatistics(id, versionKey, ful lFlag, fingerprint, JsonSerializer.Serialize(dto)); 65 return dto; ⏺ Now the regions + filesystem endpoints. First add the filesystem DTOs, then create the two endpoint files and map them. ⏺ Update(src/Arius.Api/Contracts/Dtos.cs) ⎿  Added 8 lines 72 public sealed record ScheduleDto(long Id, long RepoId, string C ron, string Kind, bool Enabled, DateTimeOffset? NextRun); 73 74 public sealed record CreateScheduleRequest(string Cron, string? Kind); 75 + 76 +// ── Filesystem browse (local-path picker) ─────────────────── +────────────────── 77 + 78 +/// A directory as the Arius.Api host/container sees i +t. 79 +public sealed record FsEntryDto(string Name, string Path); 80 + 81 +/// A directory listing: the resolved path, its parent + (null at the root), and immediate subdirectories. 82 +public sealed record FsListDto(string Path, string? Parent, IRe +adOnlyList Entries); ⏺ Write(src/Arius.Api/Endpoints/PricingEndpoints.cs) ⎿  Wrote 16 lines to src/Arius.Api/Endpoints/PricingEndpoints.cs 1 using Arius.Core.Shared.Pricing; 2 3 namespace Arius.Api.Endpoints; 5 /// Exposes the pricing catalog's metadata — currently t he set of priced regions for the account dropdown. 6 internal static class PricingEndpoints 7 { 8 // The embedded catalog is immutable for the process lifetime 9 private static readonly IReadOnlyList _regions = Pric ingCatalog.LoadEmbedded().RegionNames; … +11 lines (ctrl+o to expand) ⏺ Write(src/Arius.Api/Endpoints/FilesystemEndpoints.cs) ⎿  Wrote 52 lines to src/Arius.Api/Endpoints/FilesystemEndpoints.cs 1 using Arius.Api.Contracts; 3 namespace Arius.Api.Endpoints; 4 5 /// sts directories as the Arius.Api 7 /// host/container sees them — under Docker these are the mo 8 /// folders on the machine running the API. The stored local pat h must resolve here (not on the 9 /// browser's machine), which is why the picker is server-driven 10 /// … +56 lines (ctrl+o to expand) ⏺ Now map the two new endpoint groups in Program.cs. ⏺ Update(src/Arius.Api/Program.cs) ⎿  Added 2 lines 72 api.MapRepositoryEndpoints(); 73 api.MapBrowseEndpoints(); 74 api.MapJobEndpoints(); 75 + api.MapPricingEndpoints(); 76 + api.MapFilesystemEndpoints(); 77 app.MapHub("/hubs/arius"); 78 79 // SPA fallback: client-side routes (/overview, /repos/…) s erve index.html (only when present). ⏺ Let me check for other call sites that construct the changed records/methods (so the build doesn't break elsewhere) before building. Ran 1 shell command (ctrl+o to expand) ⏺ Two test files need updates. Let me check CliHarness.cs (it may also mock the old ICommandHandler interface) and StatisticsCacheTests.cs. Ran 1 shell command (ctrl+o to expand) ⏺ CliHarness.cs mocks the old ICommandHandler. Let me read it to update the interface + registration + the result shape. Read 1 file (ctrl+o to expand) ⏺ Update(src/Arius.Cli.Tests/TestSupport/CliHarness.cs) ⎿  Added 1 line, removed 1 line 43 // CLI-unused snapshot/stats query handlers must be sup plied too (they otherwise need a real 44 // ISnapshotService the harness has no reason to wire u p). 45 var snapshotsHandler = Substitute.For>>(); 46 - var statsHandler = Substitute.For>(); 46 + var statsHandler = Substitute.For>(); 47 48 archiveHandler 49 .Handle(Arg.Any(), Arg.Any()) ⏺ Update(src/Arius.Cli.Tests/TestSupport/CliHarness.cs) ⎿  Added 1 line, removed 1 line 89 90 statsHandler 91 .Handle(Arg.Any(), Arg.Any()) 92 - .Returns(new ValueTask(new Re -positoryStatistics(0, 0, 0, 0, 0, []))); 92 + .Returns(new ValueTask(new Re +positoryStatistics(0, 0, 0, 0, 0, "", "", 0, []))); 93 94 ArchiveHandler = archiveHandler; 95 RestoreHandler = restoreHandler; ⏺ Now update the StatisticsCacheTests.cs InsertAccount calls (need the new location arg). Read 1 file (ctrl+o to expand) ⏺ Update(src/Arius.Api.Tests/AppData/StatisticsCacheTests.cs) ⎿  Added 1 line, removed 1 line 16 { 17 var path = System.IO.Path.Combine(System.IO.Path.GetTem pPath(), $"arius-api-tests-{Guid.NewGuid():N}.db"); 18 var database = new AppDatabase(path); 19 - var accountId = database.InsertAccount("acc", encrypted -AccountKey: null); 19 + var accountId = database.InsertAccount("acc", encrypted +AccountKey: null, location: null); 20 var repositoryId = database.InsertRepository("alias", " container", accountId, localPath: null, "archive", encryptedPas sphrase: null); 21 return (database, repositoryId, path); 22 } Read 1 file (ctrl+o to expand) ⏺ Update(src/Arius.Api.Tests/AppData/StatisticsCacheTests.cs) ⎿  Added 1 line, removed 1 line 95 public async Task Prune_DoesNotAffectOtherRepositories() 96 { 97 var (database, repositoryId, _) = NewDatabase(); 98 - var otherAccountId = database.InsertAccount("acc2", nu -ll); 98 + var otherAccountId = database.InsertAccount("acc2", nu +ll, null); 99 var otherRepositoryId = database.InsertRepository("ali as2", "container2", otherAccountId, null, "archive", null); 100 101 database.UpsertCachedStatistics(otherRepositoryId, ver sion: "", full: true, fingerprint: "v1", payload: "OTHER"); ⏺ Now let me build the backend solution to catch any remaining compile errors. Ran 1 shell command (ctrl+o to expand) ⏺ Arius.Api builds clean (0 errors; the MSG0005 warnings are pre-existing). Now let me run the affected backend tests and build the other test projects. Ran 2 shell commands (ctrl+o to expand) ⏺ This project uses TUnit (Microsoft.Testing.Platform), which has different filter syntax. Let me run the full Core.Tests project (self-contained unit tests with fakes). Ran 2 shell commands (ctrl+o to expand) ⏺ All 622 Core tests pass. Now run Api.Tests and Cli.Tests to confirm the harness/DB test fixes. Ran 1 shell command (ctrl+o to expand) ⏺ The user refined pricing.json (reordered tiers; archive storage rate now 0.00086). My test hardcoded the old archive rate 0.0010 — I'll make the assertion derive the rate from the catalog so it's robust to pricing edits. ⏺ Update(src/Arius.Core.Tests/Features/StatisticsQuery/StatisticsQueryHandlerTes ts.cs) ⎿  Added 5 lines, removed 3 lines 86 stats.StoredByTier[1].StoredSize.ShouldBe(60); 87 88 // Cost: no region requested → default region (westeuro pe/EUR) from the embedded pricing catalog. 89 - // Each tier's cost = storedSize / 1024³ × that tier's -storagePerGBPerMonth (West Europe rates). 89 + // Each tier's cost = storedSize / 1024³ × that tier's +storagePerGBPerMonth. Rates are read back from 90 + // the catalog so the assertion stays correct if the pu +blished rates in pricing.json are updated. 91 const double giB = 1024.0 * 1024.0 * 1024.0; 92 + var pricing = PricingCatalog.LoadEmbedded().Resolve(nul +l).Pricing; 93 stats.Currency.ShouldBe("EUR"); 94 stats.Region.ShouldBe("westeurope"); 93 - stats.StoredByTier[0].CostPerMonth.ShouldBe(40 / giB * -0.01, tolerance: 1e-18); // Cool @ 0.01 94 - stats.StoredByTier[1].CostPerMonth.ShouldBe(60 / giB * -0.0010, tolerance: 1e-18); // Archive @ 0.0010 95 + stats.StoredByTier[0].CostPerMonth.ShouldBe(40 / giB * +pricing.StorageRateFor(BlobTier.Cool), tolerance: 1e-18); 96 + stats.StoredByTier[1].CostPerMonth.ShouldBe(60 / giB * +pricing.StorageRateFor(BlobTier.Archive), tolerance: 1e-18); 97 stats.TotalStorageCostPerMonth.ShouldBe(stats.StoredByT ier.Sum(t => t.CostPerMonth), tolerance: 1e-18); 98 } 99 Ran 1 shell command (ctrl+o to expand) ⏺ Backend complete and green (622 Core + 9 Api + 150 Cli tests pass). Task #3 done. Now the frontend — Task #4, the API layer. ⏺ Update(src/Arius.Web/src/app/core/api/api-models.ts) ⎿  Added 2 lines 5 name: string; 6 repositories: number; 7 hasKey: boolean; 8 + /** Programmatic Azure region (e.g. "westeurope"), or null wh +en unknown. */ 9 + location: string | null; 10 } 11 12 export interface RepositoryDto { ⏺ Update(src/Arius.Web/src/app/core/api/api-models.ts) ⎿  Added 8 lines 31 deduplicatedSize: number; 32 storedSize: number; 33 uniqueChunks: number; 34 + /** ISO currency code the cost figures are in (e.g. "EUR"). * +/ 35 + currency: string; 36 + /** Region the storage cost was priced for (the account's reg +ion, or the catalog default). */ 37 + region: string; 38 + /** Estimated total monthly storage cost across all tiers, in + `currency`. */ 39 + totalStorageCostPerMonth: number; 40 storedByTier: TierStatisticsDto[]; 41 } 42 ... 44 tier: string; 45 uniqueChunks: number; 46 storedSize: number; 47 + /** Estimated monthly storage cost for this tier, in the Stat +isticsDto's `currency`. */ 48 + costPerMonth: number; 49 } 50 51 export interface StateFlagsDto { ⏺ Now add the filesystem-browse DTOs at the end of api-models.ts. ⏺ Update(src/Arius.Web/src/app/core/api/api-models.ts) ⎿  Added 15 lines 141 localPath: string | null; 142 defaultTier: string | null; 143 } 144 + 145 +// ── Filesystem browse (local-path picker) ────────────────── +─────────────────── 146 + 147 +/** A directory as the Arius.Api host/container sees it. */ 148 +export interface FsEntryDto { 149 + name: string; 150 + path: string; 151 +} 152 + 153 +/** A directory listing: the resolved path, its parent (null a +t the root), and immediate subdirectories. */ 154 +export interface FsListDto { 155 + path: string; 156 + parent: string | null; 157 + entries: FsEntryDto[]; 158 +} ⏺ Now api.service.ts — extend createAccount and add getAccount, updateAccount, deleteAccount, getRegions, listDirectories. ⏺ Update(src/Arius.Web/src/app/core/api/api.service.ts) ⎿  Added 1 line, removed 1 line 1 import { HttpClient } from '@angular/common/http'; 2 import { Injectable, inject } from '@angular/core'; 3 import { map, Observable } from 'rxjs'; 4 -import { AccountDto, CreateRepositoryRequest, JobDto, Repository -Dto, ScheduleDto, SnapshotDto, StatisticsDto } from './api-model -s'; 4 +import { AccountDto, CreateRepositoryRequest, FsListDto, JobDto, + RepositoryDto, ScheduleDto, SnapshotDto, StatisticsDto } from ' +./api-models'; 5 6 /** Typed REST client for Arius.Api. Entry streaming lives in Re altimeService (SignalR). */ 7 @Injectable({ providedIn: 'root' }) ⏺ Update(src/Arius.Web/src/app/core/api/api.service.ts) ⎿  Added 26 lines, removed 2 lines 12 return this.http.get('/api/accounts'); 13 } 14 15 - createAccount(name: string, accountKey: string | null): Obser -vable { 16 - return this.http.post('/api/accounts', { name, -accountKey }); 15 + getAccount(id: number): Observable { 16 + return this.http.get(`/api/accounts/${id}`); 17 } 18 19 + createAccount(name: string, accountKey: string | null, locati +on: string | null = null): Observable { 20 + return this.http.post('/api/accounts', { name, +accountKey, location }); 21 + } 22 + 23 + /** Edit-account flyout: rotate the key (omit/null to keep th +e stored one) and/or change the region. */ 24 + updateAccount(id: number, body: { accountKey?: string | null; + location: string | null }): Observable { 25 + return this.http.patch(`/api/accounts/${id}`, b +ody); 26 + } 27 + 28 + deleteAccount(id: number): Observable { 29 + return this.http.delete(`/api/accounts/${id}`); 30 + } 31 + 32 + /** Programmatic Azure regions that have pricing (for the acc +ount-region dropdown). */ 33 + getRegions(): Observable { 34 + return this.http.get('/api/pricing/regions'); 35 + } 36 + 37 + /** Lists directories as the Arius.Api host/container sees th +em (server-side local-path picker). */ 38 + listDirectories(path?: string | null): Observable +{ 39 + const query = path ? `?path=${encodeURIComponent(path)}` : +''; 40 + return this.http.get(`/api/fs/list${query}`); 41 + } 42 + 43 listRepositories(): Observable { 44 return this.http.get('/api/repos'); 45 } ⏺ Task #4 done. Now Task #6 — the CostCalculator component. Let me read format.ts to add formatCurrency consistently with existing helpers. Read 1 file (ctrl+o to expand) ⏺ Now create the shared CostCalculator component + formatCurrency, then swap it into the statistics tab. First, formatCurrency: ⏺ Update(src/Arius.Web/src/app/shared/format.ts) ⎿  Added 14 lines 23 export function formatCount(n: number | null | undefined): stri ng { 24 return n == null ? '—' : n.toLocaleString('en-US'); 25 } 26 + 27 +const CURRENCY_SYMBOLS: Record = { EUR: '€', US +D: '$', GBP: '£' }; 28 + 29 +/** 30 + * Money → display string. Whole units at/above 10 (e.g. €182), + two decimals below (e.g. €8.14), 31 + * matching the cost-breakdown design. Falls back to a "CODE " +prefix for unknown currencies. 32 + */ 33 +export function formatCurrency(amount: number | null | undefine +d, currency: string | null | undefined = 'EUR'): string { 34 + if (amount == null) return '—'; 35 + const code = currency || 'EUR'; 36 + const symbol = CURRENCY_SYMBOLS[code] ?? `${code} `; 37 + const digits = amount >= 10 ? 0 : 2; 38 + return symbol + amount.toLocaleString('en-US', { minimumFract +ionDigits: digits, maximumFractionDigits: digits }); 39 +} ⏺ Write(src/Arius.Web/src/app/shared/cost-calculator/cost-calculator.component.t s) ⎿  Wrote 115 lines to src/Arius.Web/src/app/shared/cost-calculator/cost-c alculator.component.ts 1 import { ChangeDetectionStrategy, Component, computed, input } f 2 import { StatisticsDto } from '../../core/api/api-models'; 3 import { formatBytes, formatCount, formatCurrency } from '../for 4 6 * Region-aware storage-cost breakdown by tier — the shared "Cos tCalculator" view that replaces the old a 100%-stacked hero bar, a per-tier detail 8 * table (stored size, chunks, est. cost/mo) and a grand-total f 9 * total costs are computed server-side by the CostQuery/Statist 10 */ … +147 lines (ctrl+o to expand) ⏺ Now swap the inline tier block in statistics-tab.component.ts for the new component and update the banner copy. ⏺ Update(src/Arius.Web/src/app/features/repo/statistics/statistics-tab.component .ts) ⎿  Error editing file ⏺ The production statistics-tab differs from the handoff copy I read. Let me read the actual file. Read 1 file (ctrl+o to expand) ⏺ This production file is richer (snapshot vs repository-storage scopes; the tier section uses the lazy storageStats). I'll wire the cost calculator to storageStats and remove the now-dead tiers()/TIER_COLORS. ⏺ Update(src/Arius.Web/src/app/features/repo/statistics/statistics-tab.component .ts) ⎿  Added 1 line 3 import { SnapshotStore } from '../../../core/state/snapshot.stor e'; 4 import { StatisticsDto } from '../../../core/api/api-models'; 5 import { formatBytes, formatCount } from '../../../shared/format '; 6 +import { CostCalculatorComponent } from '../../../shared/cost-ca +lculator/cost-calculator.component'; 7 8 /** 9 * Statistics tab. Two scopes are shown separately because they answer different questions: ⏺ Update(src/Arius.Web/src/app/features/repo/statistics/statistics-tab.component .ts) ⎿  Added 1 line 16 selector: 'arius-statistics-tab', 17 standalone: true, 18 changeDetection: ChangeDetectionStrategy.OnPush, 19 + imports: [CostCalculatorComponent], 20 template: ` 21 22
⏺ Update(src/Arius.Web/src/app/features/repo/statistics/statistics-tab.component .ts) ⎿  Added 3 lines, removed 15 lines 60 } 61
62 63 - @if (!storageLoading() && tiers().length) { 64 -
65 -
Stored size by tier
66 -
67 - @for (t of tiers(); track t.tier) { 68 -
69 - {{ t.tier }} 70 -
71 -
72 -
73 - {{ t.size }} 74 - {{ t.chunks }} chunks 75 -
76 - } 77 -
63 + @if (!storageLoading() && (storageStats()?.storedByTier?.le +ngth ?? 0)) { 64 +
65 + 66
67 } 68 ⏺ Now remove the dead tiers() method and TIER_COLORS from the statistics tab. ⏺ Update(src/Arius.Web/src/app/features/repo/statistics/statistics-tab.component .ts) ⎿  Removed 16 lines 135 ]; 136 } 137 138 - // Warmer → cooler colours so the access-tier story reads at - a glance (Archive = coldest = slowest to restore). 139 - private static readonly TIER_COLORS: Record -= { 140 - Hot: '#ef4444', Cool: '#3b82f6', Cold: '#0ea5e9', Archive: - '#64748b', 141 - }; 142 - 143 - protected tiers() { 144 - const rows = this.storageStats()?.storedByTier ?? []; 145 - const max = Math.max(1, ...rows.map(t => t.storedSize)); 146 - return rows.map(t => ({ 147 - tier: t.tier, 148 - size: formatBytes(t.storedSize), 149 - chunks: formatCount(t.uniqueChunks), 150 - pct: (t.storedSize / max) * 100, 151 - color: StatisticsTabComponent.TIER_COLORS[t.tier] ?? '#a -1a1aa', 152 - })); 153 - } 138 } ⏺ Task #6 done. Now Task #5 — Group 1 accounts UI. Let me read app.component.ts and properties-drawer.component.ts to mirror the drawer mounting/structure precisely. Read 2 files (ctrl+o to expand) ⏺ Now I have all the patterns. Let me build Group 1's frontend. First, extend the drawer store with an account type. ⏺ Update(src/Arius.Web/src/app/core/state/drawer.store.ts) ⎿  Added 1 line, removed 1 line 2 import { RealtimeService } from '../api/realtime.service'; 3 import { CostEstimateMsg, LogLine } from '../api/api-models'; 4 5 -export type DrawerType = 'archive' | 'restore' | 'properties' | -null; 5 +export type DrawerType = 'archive' | 'restore' | 'properties' | +'account' | null; 6 export type StreamState = 'idle' | 'running' | 'cost' | 'done'; 7 8 /** ⏺ Update(src/Arius.Web/src/app/core/state/drawer.store.ts) ⎿  Added 1 line 16 17 readonly type = signal(null); 18 readonly repoId = signal(0); 19 + readonly accountId = signal(0); 20 readonly version = signal(null); 21 readonly collectedPaths = signal([]); 22 ⏺ Update(src/Arius.Web/src/app/core/state/drawer.store.ts) ⎿  Added 6 lines 49 this.repoId.set(repoId); 50 } 51 52 + openAccount(accountId: number): void { 53 + this.resetStream(); 54 + this.type.set('account'); 55 + this.accountId.set(accountId); 56 + } 57 + 58 openArchive(repoId: number, tier: string): void { 59 this.resetStream(); 60 this.type.set('archive'); ⏺ Now the shared folder-picker component (server-driven directory browser). ⏺ Write(src/Arius.Web/src/app/shared/folder-picker/folder-picker.component.ts) ⎿  Wrote 102 lines to src/Arius.Web/src/app/shared/folder-picker/folder-picker.component.ts 1 import { ChangeDetectionStrategy, Component, inject, input, mode 2 import { FormsModule } from '@angular/forms'; 3 import { ApiService } from '../../core/api/api.service'; 4 import { FsEntryDto } from '../../core/api/api-models'; 6 /** 7 * Local-path input with a [...] button that browses directories 8 * (mounted volumes under Docker; real folders in dev) — the pat h must resolve on the API side, not the 9 * browser's, so the picker is server-driven via /api/fs/list. T 10 */ … +125 lines (ctrl+o to expand) ⏺ Now extend the drawer store with an accounts-changed signal (so the overview list refreshes after edits), then build the account drawer. ⏺ Update(src/Arius.Web/src/app/core/state/drawer.store.ts) ⎿  Added 4 lines 20 readonly version = signal(null); 21 readonly collectedPaths = signal([]); 22 23 + /** Bumped whenever an account is created/edited/deleted, so +account lists (e.g. Overview) can re-fetch. */ 24 + readonly accountsRevision = signal(0); 25 + bumpAccounts(): void { this.accountsRevision.update(n => n + +1); } 26 + 27 readonly streamState = signal('idle'); 28 readonly lines = signal([]); 29 readonly progress = signal(0); ⏺ Write(src/Arius.Web/src/app/features/drawer/account-drawer.component.ts) ⎿  Wrote 143 lines to src/Arius.Web/src/app/features/drawer/account-drawer.component.ts 1 import { ChangeDetectionStrategy, Component, computed, effect, i nject, signal } from '@angular/core'; 2 import { FormsModule } from '@angular/forms'; 4 import { DrawerStore } from '../../core/state/drawer.store'; 5 import { ApiService } from '../../core/api/api.service'; 6 import { AccountDto } from '../../core/api/api-models'; 7 8 /** Right slide-over to edit a storage account: rotate the accou 9 @Component({ 10 selector: 'arius-account-drawer', … +187 lines (ctrl+o to expand) ⏺ Now mount the account drawer in app.component.ts. ⏺ Update(src/Arius.Web/src/app/app.component.ts) ⎿  Added 1 line 4 import { MetronicInitService } from './core/services/metronic-i nit.service'; 5 import { ArchiveRestoreDrawerComponent } from './features/drawe r/archive-restore-drawer.component'; 6 import { PropertiesDrawerComponent } from './features/drawer/pr operties-drawer.component'; 7 +import { AccountDrawerComponent } from './features/drawer/accou +nt-drawer.component'; 8 import { GlobalSearchOverlayComponent } from './features/search /global-search-overlay.component'; 9 import { SearchStore } from './core/state/search.store'; 10 import { toSignal } from '@angular/core/rxjs-interop'; ⏺ Update(src/Arius.Web/src/app/app.component.ts) ⎿  Added 1 line, removed 1 line 20 selector: 'body[app-root]', 21 standalone: true, 22 encapsulation: ViewEncapsulation.None, 23 - imports: [RouterOutlet, RouterLink, RouterLinkActive, Archive -RestoreDrawerComponent, PropertiesDrawerComponent, GlobalSearch -OverlayComponent], 23 + imports: [RouterOutlet, RouterLink, RouterLinkActive, Archive +RestoreDrawerComponent, PropertiesDrawerComponent, AccountDrawe +rComponent, GlobalSearchOverlayComponent], 24 template: ` 25 26
85 86 - 86 + 87 88 89 + 90 91 `, 92 }) ⏺ Now the Overview "Storage Accounts" section. Update imports/class first. ⏺ Update(src/Arius.Web/src/app/features/overview/overview.component.ts) ⎿  Added 3 lines, removed 1 line 1 import { ChangeDetectionStrategy, Component, computed, inject } from '@angular/core'; 2 -import { toSignal } from '@angular/core/rxjs-interop'; 2 +import { toObservable, toSignal } from '@angular/core/rxjs-inter +op'; 3 import { Router } from '@angular/router'; 4 +import { switchMap } from 'rxjs/operators'; 5 import { ApiService } from '../../core/api/api.service'; 6 +import { DrawerStore } from '../../core/state/drawer.store'; 7 8 /** Overview: KPI cards + the repositories table. Cross-repo siz e/dedup totals arrive with the jobs DB. */ 9 @Component({ ⏺ Update(src/Arius.Web/src/app/features/overview/overview.component.ts) ⎿  Added 5 lines 85 export class OverviewComponent { 86 private readonly api = inject(ApiService); 87 private readonly router = inject(Router); 88 + private readonly drawer = inject(DrawerStore); 89 90 protected readonly repos = toSignal(this.api.listRepositories ()); 91 protected readonly repoCount = computed(() => this.repos()?.l ength ?? 0); 92 93 + // Re-fetch whenever an account is added/edited/deleted via t +he wizard or the edit flyout. 94 + protected readonly accounts = toSignal( 95 + toObservable(this.drawer.accountsRevision).pipe(switchMap(( +) => this.api.listAccounts()))); 96 + 97 protected readonly kpis = computed(() => [ 98 { label: 'Repositories', value: String(this.repoCount()), i con: 'ki-folder', chipBg: '#eff6ff', chipFg: '#3b82f6' }, 99 { label: 'Total archived', value: '—', icon: 'ki-cloud', ch ipBg: '#f0fdf4', chipFg: '#15803d' }, ⏺ Update(src/Arius.Web/src/app/features/overview/overview.component.ts) ⎿  Added 40 lines 80
Loading…
81 } 82 83 + 84 + 85 +
86 +
87 +
88 +
Storage accounts
89 +
Azure st +orage accounts under management
90 +
91 + 92 +
93 + 94 +
95 +
Account
Region
Repositories 96 +
97 + 98 + @if (accounts(); as list) { 99 + @for (account of list; track account.id) { 100 +
102 +
103 +
104 + 105 +
106 +
107 +
{{ account.name }}
108 +
{{ a +ccount.hasKey ? 'Key configured' : 'No key' }}
109 +
110 +
111 +
{{ account.location ?? 'Unknown' }}
112 +
{{ acc +ount.repositories }}
113 +
114 + } @empty { 115 +
116 + No storage accounts yet — add one to create a repo +sitory. 117 +
118 + } 119 + } @else { 120 +
Loading…
121 + } 122 +
123 `, 124 }) 125 export class OverviewComponent { ⏺ Now add the editAccount method to the overview component. ⏺ Update(src/Arius.Web/src/app/features/overview/overview.component.ts) ⎿  Added 1 line 151 protected refresh(): void { location.reload(); } 152 protected go(path: string): void { this.router.navigateByUrl (path); } 153 protected openRepo(id: number): void { this.router.navigate( ['/repos', id, 'files']); } 154 + protected editAccount(id: number): void { this.drawer.openAc +count(id); } 155 } ⏺ Now the properties-tab cleanup (Group 1 #2): remove the account-key field, rename the passphrase label, and swap the local-path input for the folder picker. ⏺ Update(src/Arius.Web/src/app/features/repo/properties/properties-tab.component .ts) ⎿  Added 3 lines, removed 2 lines 4 import { Router } from '@angular/router'; 5 import { ApiService } from '../../../core/api/api.service'; 6 import { RepositoryDto, ScheduleDto } from '../../../core/api/a pi-models'; 7 +import { FolderPickerComponent } from '../../../shared/folder-p +icker/folder-picker.component'; 8 8 -/** Properties tab: friendly alias, read-only account/container -, account key, encryption passphrase (rotate), local folder, sc -hedules, and repository delete. */ 9 +/** Properties tab: friendly alias, read-only account/container +, passphrase (rotate), local folder, schedules, and repository +delete. The account key belongs to the storage account (edit it + from the Overview), not the repository. */ 10 @Component({ 11 selector: 'arius-properties-tab', 12 standalone: true, 13 changeDetection: ChangeDetectionStrategy.OnPush, 13 - imports: [FormsModule, DatePipe], 14 + imports: [FormsModule, DatePipe, FolderPickerComponent], 15 template: ` 16 @if (repo(); as r) { 17
⏺ Update(src/Arius.Web/src/app/features/repo/properties/properties-tab.component .ts) ⎿  Added 1 line, removed 6 lines 24 25
26 31 - ⏺ Update(src/Arius.Web/src/app/features/repo/properties/properties-tab.component .ts) ⎿  Added 3 lines, removed 3 lines 35 @if (passphraseMismatch()) { Passphrases don't match. } 36 37 } 38 -