STORY:
The Unified UX needs URL as the single source of truth for view state.
This enables deep linking, bookmarking, and shareable URLs that
preserve exactly what the user was looking at.
COLLABORATION:
Created useUrlState hook using Next.js useSearchParams and useRouter:
Interface:
- view: 'social' | 'graph' | 'swarm' (default: social)
- taskId: selected task ID (for detail panel)
- swarmId: selected swarm ID
- panel: 'open' | 'closed' (detail panel state)
- graphTab: 'flow' | 'overview' (graph view mode)
URL Patterns:
- /?view=social
- /?view=social&task=bb-buff.1&panel=open
- /?view=swarm&swarm=bb-buff
- /?view=graph&task=bb-buff.1&graphTab=flow
The hook uses router.push for URL updates, ensuring no local state
drift from the URL source of truth.
DELIVERABLES:
- src/hooks/use-url-state.ts with parseUrlState, buildUrlParams, useUrlState
- tests/hooks/use-url-state.test.ts with 18+ tests
VERIFICATION:
- npm run typecheck: PASS
- npm run lint: PASS
- npm run test: PASS (all tests including new ones)
CLOSES: bb-ui2.4
BLOCKS: bb-ui2.5
4b8770c78c