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route-commerce/db/schema
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Water Log: production-ready module (schema, auth, CRUD, UI, tests, docs)
Completes the Tuxedo Water Log feature end-to-end. Builds on the existing
water_* tables in 0001_init.sql; extends them with 0090 and rewrites the
server actions, settings page, export route, and admin panel to actually
function.

Schema (db/migrations/0090_water_log_completion.sql, db/schema/water-log.ts)
- headgate_token + status + max_flow_gpm + thresholds + notes on water_headgates
- role + phone + notes on water_irrigators
- method + total_gallons + photo_url + logged_date + lat/lon on water_log_entries
- new tables: water_admin_settings, water_admin_sessions, water_audit_log, water_alert_log

Auth (src/lib/water-log-pin.ts, src/lib/water-log-audit.ts)
- scrypt N=16384 per-PIN random salt, self-describing hash format
- weak-PIN detection (repeats, monotonic, palindromes)
- 200ms delay + timingSafeEqual on failed verify
- 4-8 digit PINs, generatePin() rejects weak patterns

Server actions (src/actions/water-log/{admin,field,settings}.ts)
- full Drizzle CRUD: headgates, irrigators, entries (with audit hooks)
- verifyPin + 8h field sessions, admin PIN + configurable 1-168h sessions
- regenerateAdminPin invalidates existing admin sessions
- threshold breach detection + alert log writes
- getWaterAdminSession() helper for admin pages

API routes
- /api/water-admin-auth: PIN-protected, generic error (no enum leak)
- /api/water-logs/export: admin-gated JSON/CSV, correct headers

UI (Field Almanac — cream + forest, Fraunces display, § section markers)
- src/components/admin/WaterLogAdminPanel.tsx: full rewrite
- src/components/water/WaterFieldClient.tsx: matches palette
- src/components/water/icons/{WaterGauge,SeasonMark}.tsx: custom SVGs
- src/app/admin/water-log/settings/page.tsx: full rewrite, Field Almanac

Tests
- tests/unit/water-log-pin.test.ts (21 cases): validate, hash, verify, generate
- tests/unit/water-log-reporting.test.ts (31 cases): season, filter, CSV, report
- tests/water-log.spec.ts (Playwright E2E): PIN form, auth gates, API gates

Docs
- docs/water-log.md: full admin guide, security model, data dictionary, checklist
- README: link to docs/water-log.md in admin modules list
- .env.example: Water Log section comment

Type-check: clean. Tests: 70 pass, 3 fail (3 pre-existing getAdminUser
failures on main, unrelated to this work).
2026-06-17 11:36:00 -06:00
..