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focus-flow/Codex Documentation/Current Software Plan/UI Plan 2 - Backlog Board Implementation/UI_PLAN_2_IMPLEMENTATION_NOTES.md

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UI Plan 2 Implementation Notes

Block 01 Baseline Map

  1. Sidebar and app shell currently render through apps/focus_flow_flutter/lib/widgets/sidebar.dart, apps/focus_flow_flutter/lib/widgets/app_shell.dart, and the FocusFlowHome parts under apps/focus_flow_flutter/lib/app/home/.
  2. Navigation state is not implemented yet. Sidebar hard-codes Today as active, and FocusFlowHome owns only Today controllers. UI Plan 2 should add app-level section state in the home/composition layer before rendering the Backlog board.
  3. Backlog board data needs new public scheduler application read models. The current BacklogQueryResult is list-shaped and returns raw Task values via BacklogItemReadModel, which is not enough for board columns, summary, detail drawer metadata, or suggested slot previews.
  4. Existing commands include quick capture to backlog, schedule backlog item to next available slot, move flexible tasks to backlog, remove task, and break up task. Push-to-Someday and non-destructive backlog archive still need command-level decisions before the drawer actions can be final.
  5. UI Plan 1 components to reuse include FocusFlowTokens, the dark shell, timeline reward icon, difficulty bars, selected overlay patterns, and the top-bar icon/segmented-control styling conventions.

Block 01 Validation

  • scripts/bootstrap_dev.sh: passed.
  • dart analyze: passed.
  • dart test: passed.
  • flutter analyze in apps/focus_flow_flutter: passed.
  • flutter test in apps/focus_flow_flutter: passed.

Block 02 Audit

  1. GetBacklogRequest, BacklogQueryResult, and BacklogItemReadModel remain the compatibility path for the existing simple backlog pane.
  2. UI Plan 2 should add board-specific public read models instead of extending BacklogQueryResult, because the board needs columns, summary distributions, child previews, detail rows, and suggested slots while the current list result intentionally exposes raw tasks plus staleness markers.
  3. The board bucket policy belongs in pure scheduler backlog code under packages/scheduler_core/lib/src/scheduling/backlog/, with Flutter consuming only public scheduler_core.dart exports.

Block 02 Notes/Tags Breakpoint

Adding real V1 task notes and freeform tags is a broad persistence change, not only a drawer read-model change. It would touch at least:

  1. Task, Task.quickCapture, and Task.copyWith.
  2. Task document fields and TaskDocumentMapping.
  3. Persistence contract field sets and document field coverage tests.
  4. In-memory application/repository round trips through the full domain object.
  5. SQLite Drift task table columns, generated database code, schema versioning, migration strategy, migration tests, and both SQLite task mappers.
  6. Command/capture surfaces if the UI can create or edit notes/tags.

Per UI_PLAN_2_BLOCK_02_BACKLOG_READ_MODELS_AND_METADATA.md, this is the breakpoint where Ashley needs to choose whether drawer tags should be read-only placeholders for now or true V1 metadata with a schema migration.

Ashley chose the read-only path for UI Plan 2. Backlog drawer notes remain null, and tags are derived only from existing narrow backlog metadata for now (BacklogTag.wishlist displays as someday). True notes and freeform tags are tracked in Human Documentation/Things to consider todo/Backlog Notes and Freeform Tags Metadata.md for a later migration-backed feature.

Block 02 Board and Detail Queries

  1. GetBacklogBoardRequest and GetBacklogTaskDetailRequest now expose the public query inputs needed by Flutter without importing scheduler src/.
  2. V1ApplicationManagementUseCases.getBacklogBoard loads backlog candidates, project display metadata, direct child previews, search/filter/sort/group state, bucket policy results, and summary distributions through repository read boundaries only.
  3. V1ApplicationManagementUseCases.getBacklogTaskDetail returns the selected backlog task drawer model, read-only derived tags, project options, and non-mutating suggested slot previews. Missing duration returns a display reason instead of attempting scheduling.
  4. Focused application-management tests cover stable empty columns, bucket and summary consistency, search/filter behavior, child previews, not-found detail responses, read-only slot suggestions, and missing-duration handling.