GearBox/.planning/phases/26-discovery-landing-page/26-01-SUMMARY.md

phase, plan, subsystem, tags, dependency_graph, tech_stack, key_files, decisions, metrics

phase	plan	subsystem	tags	dependency_graph	tech_stack	key_files	decisions	metrics
26-discovery-landing-page	01	server/services	discovery service-layer cursor-pagination tdd drizzle	requires provides affects discovery.service.ts 26-02 26-03	added patterns cursor-pagination CursorPage-response-shape post-query-cursor-filter	created modified src/server/services/discovery.service.ts tests/services/discovery.service.test.ts	Composite cursor for setups: itemCount_id format, filtered post-query in JS for simplicity with grouped SQL createdAt ISO string cursor for recent items: standard timestamp-based pagination No cursor pagination for trending categories: bounded small list (< 50), simple limit is sufficient per RESEARCH.md open question 3 Shared CursorPage<T> generic interface for consistent cursor response shape across setups and items	duration completed_date tasks_completed tasks_total files_created files_modified ~2 min 2026-04-10 1 1 2 0

Phase 26 Plan 01: Discovery Service Summary

One-liner: Discovery service layer with cursor pagination using Drizzle ORM — getPopularSetups (itemCount_id composite cursor), getRecentGlobalItems (ISO timestamp cursor), getTrendingCategories (simple limit).

Tasks Completed

Task	Name	Commit	Files
1 (RED)	Discovery service TDD — failing tests	06b6e93	tests/services/discovery.service.test.ts
1 (GREEN)	Discovery service TDD — implementation	d1f8a7a	src/server/services/discovery.service.ts

What Was Built

src/server/services/discovery.service.ts

Three exported async functions:

getPopularSetups(db, limit=6, cursor?)

• JOINs setups → setupItems (count) → users (displayName)
• WHERE isPublic=true, GROUP BY setup fields
• ORDER BY item count DESC, id DESC
• Cursor: itemCount_id composite string, filtered post-query in JS
• Returns CursorPage<{ id, name, createdAt, itemCount, creatorName }>

getRecentGlobalItems(db, limit=8, cursor?)

• SELECT * FROM globalItems WHERE createdAt < cursor (if provided)
• ORDER BY createdAt DESC, LIMIT limit+1 for hasMore detection
• Cursor: ISO timestamp of last item's createdAt
• Returns CursorPage<GlobalItem>

getTrendingCategories(db, limit=12)

• SELECT category, COUNT(id) FROM globalItems WHERE category IS NOT NULL
• GROUP BY category, ORDER BY count DESC
• Returns plain Array<{ name: string; itemCount: number }> (no cursor)

tests/services/discovery.service.test.ts

11 tests covering:

• getPopularSetups: ordering by count desc, private setup exclusion, hasMore/nextCursor, second page deduplication, creatorName from users.displayName
• getRecentGlobalItems: ordering by createdAt desc, hasMore/nextCursor, second page deduplication
• getTrendingCategories: ordering by count desc, null category exclusion, empty state

Deviations from Plan

None — plan executed exactly as written.

The test used a dynamic import pattern for eq which was corrected to a static import (minor code quality fix before RED commit).

Verification

• bun test tests/services/discovery.service.test.ts: 11 pass, 0 fail
• bun test full suite: 290 tests — same pass/fail ratio as before (15 pre-existing failures from withImageUrl storage service export issue, unrelated to this plan)

Self-Check

Checked below.