---
phase: 18-global-items-public-profiles
plan: 01
subsystem: database
tags: [drizzle, postgres, zod, schema, global-items, profiles]

requires:
  - phase: 17-object-storage
    provides: "S3 storage service, pgTable schema with userId columns"
provides:
  - "globalItems table for crowd-sourced gear database"
  - "itemGlobalLinks junction table linking user items to global catalog"
  - "User profile fields (displayName, avatarUrl, bio) on users table"
  - "Setup visibility (isPublic) on setups table"
  - "Zod schemas for global item search, item linking, profile update"
  - "TypeScript types inferred from Drizzle and Zod"
  - "Bikepacking gear seed data (18 items, 7 categories)"
affects: [18-02, 18-03, 18-04, 18-05]

tech-stack:
  added: []
  patterns: ["Global items as separate table from user items, linked via junction table"]

key-files:
  created:
    - "src/db/global-items-seed.json"
    - "drizzle-pg/0001_tough_boomerang.sql"
  modified:
    - "src/db/schema.ts"
    - "src/shared/schemas.ts"
    - "src/shared/types.ts"

key-decisions:
  - "Global items table uses text category field (not FK) for flexibility with crowd-sourced data"
  - "itemGlobalLinks has unique constraint on itemId (one global item per user item)"
  - "Seed data covers 7 categories with 18 real bikepacking products"

patterns-established:
  - "Junction table pattern for linking user-owned entities to global catalog"
  - "isPublic boolean with default false for gradual visibility opt-in"

requirements-completed: [GLOB-01, GLOB-02, PROF-01, PROF-03]

duration: 3min
completed: 2026-04-05
---

# Phase 18 Plan 01: Schema Foundations Summary

**Global items table, item-global links, user profile columns, setup visibility, Zod schemas, and 18-item bikepacking seed catalog**

## Performance

- **Duration:** 3 min
- **Started:** 2026-04-05T10:57:03Z
- **Completed:** 2026-04-05T10:59:44Z
- **Tasks:** 2
- **Files modified:** 5

## Accomplishments
- Added globalItems and itemGlobalLinks tables to Postgres schema with proper FK constraints
- Extended users table with displayName, avatarUrl, bio profile fields
- Extended setups table with isPublic boolean for public sharing
- Created Zod validation schemas and TypeScript types for all new entities
- Built 18-item bikepacking gear seed catalog with real product data

## Task Commits

Each task was committed atomically:

1. **Task 1: Schema tables and column additions** - `8265703` (feat)
2. **Task 2: Zod schemas, types, and seed data** - `81b70a7` (feat)

## Files Created/Modified
- `src/db/schema.ts` - Added boolean import, globalItems table, itemGlobalLinks table, users profile columns, setups isPublic
- `src/shared/schemas.ts` - Added searchGlobalItemsSchema, linkItemSchema, updateProfileSchema; updated setup schemas with isPublic
- `src/shared/types.ts` - Added GlobalItem, ItemGlobalLink, SearchGlobalItems, LinkItem, UpdateProfile types
- `src/db/global-items-seed.json` - 18 bikepacking gear items across bags, shelters, sleep systems, cooking, hydration, lighting, racks, accessories
- `drizzle-pg/0001_tough_boomerang.sql` - Migration for all schema changes

## Decisions Made
- Global items category stored as text (not FK to categories) since global items are hobby-agnostic and not user-scoped
- itemGlobalLinks uses unique constraint on itemId ensuring one-to-one mapping from user item to global item
- Seed data uses real product names and approximate specs for realistic development/testing

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered
None.

## User Setup Required
None - no external service configuration required.

## Next Phase Readiness
- Schema foundation complete for all Phase 18 plans
- Plan 18-02 (global items service/routes) can proceed with globalItems table and search schema
- Plan 18-03 (profiles/visibility) can proceed with user profile columns and updateProfileSchema
- Migration file ready for deployment

---
*Phase: 18-global-items-public-profiles*
*Completed: 2026-04-05*