117 lines
4.9 KiB
Markdown
117 lines
4.9 KiB
Markdown
# Tessera
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Open-source ticketing system — Request Tracker's paradigm rebuilt in modern TypeScript.
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## Architecture
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```
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tessera/
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├── src/ # Backend: Bun + Hono + Drizzle ORM
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│ ├── index.ts # Hono server entry (port 9876)
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│ ├── config.ts # Zod-validated env config
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│ ├── db/ # Drizzle ORM schema + migrations
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│ ├── routes/ # REST API endpoints
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│ ├── models/ # TypeScript types + Zod schemas
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│ ├── scrip/ # Scrip engine (prepare/commit two-phase)
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│ └── lifecycle/ # State machine validator
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├── web/ # Frontend: Next.js 15 + shadcn/ui
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│ └── src/app/ # App Router pages
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├── drizzle/ # SQL migration files
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└── docs/ # Architecture + design specs
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```
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## Stack
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**Backend:** Bun runtime, Hono web framework, Drizzle ORM, PostgreSQL 17, Zod validation, Handlebars templates, nodemailer
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**Frontend:** Next.js 15 App Router, shadcn/ui (Tailwind CSS), next-themes (light/dark), React Hook Form + Zod, TanStack Table, date-fns, lucide-react icons
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**Fonts:** Inter (variable, with cv01+ss03 OpenType features), JetBrains Mono
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## Running Locally
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### Prerequisites
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- Bun (`nix-shell -p bun` or install globally)
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- Node.js 22+ (`nix-shell -p nodejs_22`)
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- Docker (for PostgreSQL)
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- PostgreSQL container: `docker run -d --name tessera-db -e POSTGRES_USER=tessera -e POSTGRES_PASSWORD=*** -e POSTGRES_DB=tessera -p 127.0.0.1:5433:5432 postgres:17-alpine`
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### Start backend
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```bash
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cd ~/projects/tessera
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cp .env.example .env # Edit DATABASE_URL to point to postgres://tessera:***@127.0.0.1:5433/tessera
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npm run dev:backend # Starts API on port 9876
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```
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### Run migrations
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```bash
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npm run db:migrate
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npm run db:seed # Optional demo data for UI review
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npm run db:seed:reset # Reset local app data, then recreate demo data
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```
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### Start frontend
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```bash
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cd web
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npm install # Use npm, NOT bun (bun has compatibility issues with Next.js dev server)
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npm run build # Production build
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npm run start # Production server on 127.0.0.1:3100
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```
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**Note:** `bun run dev` (Turbopack) has WebSocket HMR issues in this environment. Use production mode only.
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## API Endpoints
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All endpoints are served by the backend on port 9876. The frontend proxies `/api/*` to the backend via `next.config.ts`.
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| Method | Path | Description |
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|--------|------|-------------|
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| GET | /health | Health check |
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| GET | /tickets | List tickets (?queue_id=&status=) |
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| POST | /tickets | Create ticket |
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| GET | /tickets/:id | Get ticket with custom fields |
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| PATCH | /tickets/:id | Update ticket (validates lifecycle, runs scrips) |
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| POST | /tickets/:id/preview | Dry-run scrips for status change |
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| POST | /tickets/:id/comment | Add comment to ticket |
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| GET | /tickets/:id/transactions | List ticket transactions |
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| GET/POST | /queues | List/create queues |
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| GET/POST/PATCH | /scrips | CRUD scrips |
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| GET/POST | /custom-fields | List/create custom fields |
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| GET/POST | /lifecycles | List/create lifecycles |
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## Key Design Decisions
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- **Ticket IDs are sequential integers** (1, 2, 3...), formatted as `TKT-0001` for display. No UUIDs.
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- **Transaction-centric:** Every state change creates a transaction record. The scrip engine runs on transactions.
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- **Two-phase scrip engine:** Prepare (no side effects) then Commit (execute actions). Supports dry-run mode.
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- **Lifecycle state machines:** Per-queue configurable status transitions with wildcard support.
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- **Light mode is default.** Dark mode available via theme toggle (next-themes).
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- **No ORM for frontend:** Drizzle is only on the backend. Frontend uses a typed fetch wrapper (`web/src/lib/api.ts`).
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## Git Workflow
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Repo: `https://git.gjermund.xyz/gjermund/tessera`
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Push via HTTPS with token auth (SSH port 2222 is not configured on Gitea):
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```bash
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git remote set-url origin https://gjermund:TOKEN@git.gjermund.xyz/gjermund/tessera.git
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```
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## Development Workflow
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All code is written by **OpenCode** (AI coding agent). Hermes writes specs, OpenCode writes code, Gjermund reviews.
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OpenCode server: `opencode serve --port 4096` (Gjermund attaches with `opencode --attach http://127.0.0.1:4096`)
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After OpenCode makes changes:
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1. `cd web && npx next build` — verify zero errors
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2. `npm run start` — restart production server on 127.0.0.1:3100
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3. `git push` — push to origin
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## Common Issues
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- **Frontend shows skeleton/blank page:** The frontend dev server (Turbopack) has WebSocket HMR issues. Use production mode (`npx next build` + `npx next start`).
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- **Backend not running on 9876:** Restart with `bun run src/index.ts`. Check port with `ss -tlnp | grep 9876`.
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- **Database connection refused:** Docker container may be stopped. `docker start tessera-db`.
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- **Build errors after migration:** Run `bun run src/db/migrate.ts` to apply new migrations.
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