name: CI/CD Pipeline

on:
  push:
    branches: [main, develop]
  pull_request:
    branches: [main, develop]

permissions:
  contents: read

jobs:
  test:
    name: Test & Lint
    runs-on: ubuntu-latest
    env:
      DATABASE_URL: "postgresql://postgres:password@localhost:5432/widgetdc_test"
      REDIS_URL: "redis://localhost:6379"
    services:
      postgres:
        image: pgvector/pgvector:pg16
        env:
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: password
          POSTGRES_DB: widgetdc_test
        ports:
          - 5432:5432
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5

      redis:
        image: redis:alpine
        ports:
          - 6379:6379
        options: >-
          --health-cmd "redis-cli ping"
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5
    permissions:
      contents: read

    strategy:
      matrix:
        node-version: [20.x]
      fail-fast: false

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}
          cache: "npm"

      - name: Install dependencies
        run: npm ci --legacy-peer-deps

      - name: Generate Prisma Client
        run: cd apps/backend && npx prisma generate

      - name: Run linter
        continue-on-error: true
        run: npm run lint

      - name: Check formatting
        continue-on-error: true
        run: npm run format:check

      - name: Run tests
        run: npm run test:run

      - name: Report Test Failure
        if: failure()
        run: echo "::error::Tests failed on Node ${{ matrix.node-version }}"

  build:
    name: Build
    runs-on: ubuntu-latest
    if: always()
    permissions:
      contents: read

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: "20.x"
          cache: "npm"

      - name: Install dependencies
        run: npm ci --legacy-peer-deps

      - name: Generate Prisma Client
        run: cd apps/backend && npx prisma generate

      - name: Build application
        run: npm run build

      - name: Report Build Failure
        if: failure()
        run: echo "::error::Build failed - check logs for details"

  frontend-ci:
    name: Frontend CI (Lint + TypeCheck + Build)
    runs-on: ubuntu-latest
    permissions:
      contents: read

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: "20.x"
          cache: "npm"

      - name: Install dependencies
        run: npm ci --legacy-peer-deps

      - name: TypeCheck frontend
        run: npm run typecheck:frontend

      # Note: continue-on-error allows warnings while maintaining visibility.
      # Existing warnings are tracked; new lint errors will show in PR annotations.
      - name: Lint frontend
        continue-on-error: true
        run: npm run lint:frontend

      - name: Build frontend
        run: npm run build:frontend

      - name: Report Frontend Build Failure
        if: failure()
        run: echo "::error::Frontend build failed"

  security:
    name: Security Scan
    runs-on: ubuntu-latest
    if: always()
    permissions:
      contents: read
      security-events: write

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Run npm audit
        run: npm audit --audit-level=moderate --legacy-peer-deps || true

      - name: Upload audit results
        if: always()
        run: npm audit --json --legacy-peer-deps > audit-results.json || true

      - name: Upload audit artifacts
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: security-audit
          path: audit-results.json
          retention-days: 30