# Continuous integration — SPEC §12
# Node 20. Steps: lint → typecheck → test + coverage → build → docker build.
# Runs on every PR and on pushes to main.

name: CI

on:
  push:
    branches: ["main"]
  pull_request:

concurrency:
  group: ci-${{ github.ref }}
  cancel-in-progress: true

jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 20
          cache: npm
      - run: npm ci
      - run: npm run lint

  typecheck:
    name: Typecheck
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 20
          cache: npm
      - run: npm ci
      - run: npm run typecheck

  test:
    name: Test (coverage)
    runs-on: ubuntu-latest
    services:
      mongo:
        image: mongo:7
        ports:
          - "27017:27017"
    env:
      # Backend integration tests run against the GitHub-hosted Mongo service
      # (SPEC §11); falls back to mongodb-memory-server when unset.
      MONGODB_URI: mongodb://127.0.0.1:27017/workorders
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 20
          cache: npm
      - run: npm ci
      - run: npm run test:coverage

  build:
    name: Build
    runs-on: ubuntu-latest
    needs: [lint, typecheck, test]
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 20
          cache: npm
      - run: npm ci
      - run: npm run build

  docker:
    name: Docker build
    runs-on: ubuntu-latest
    needs: [build]
    steps:
      - uses: actions/checkout@v4
      - name: Build backend image
        run: docker build -f backend/Dockerfile --target prod -t workorders-api:ci .
      - name: Build frontend/nginx image
        run: docker build -f frontend/Dockerfile --target prod -t workorders-nginx:ci .