name: CI/CD Pipeline

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

jobs:
  # Security scanning with CodeQL (only on main branch pushes)
  security-scan:
    name: Security Scan
    runs-on: ubuntu-latest
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    permissions:
      actions: read
      contents: read
      security-events: write

    steps:
      - name: Checkout code
        uses: actions/checkout@v5

      - name: Initialize CodeQL
        uses: github/codeql-action/init@v3
        with:
          languages: go

      - name: Setup Go
        uses: actions/setup-go@v5
        with:
          go-version: "1.25"
          cache: true

      - name: Install dependencies
        run: go mod download

      - name: Build
        run: go build -v ./...

      - name: Perform CodeQL Analysis
        uses: github/codeql-action/analyze@v3

  # Linting (runs on PRs and pushes)
  lint:
    name: Lint
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v5

      - name: Setup Go
        uses: actions/setup-go@v5
        with:
          go-version: "1.25"
          cache: true

      - name: golangci-lint
        uses: golangci/golangci-lint-action@v6
        with:
          version: latest
          args: --timeout=5m

  # Testing and coverage (runs on PRs and pushes)
  test:
    name: Test
    runs-on: ubuntu-latest
    services:
      postgres:
        image: postgres:15
        env:
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: testdb
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5
        ports:
          - 5432:5432

      redis:
        image: redis:7-alpine
        ports:
          - 6379:6379
        options: --health-cmd "redis-cli ping" --health-interval 10s --health-timeout 5s --health-retries 5

    steps:
      - name: Checkout code
        uses: actions/checkout@v5

      - name: Setup Go
        uses: actions/setup-go@v5
        with:
          go-version: "1.25"
          cache: true

      - name: Install dependencies
        run: go mod download

      - name: Run tests with coverage
        run: |
          go test -v -race -coverprofile=coverage.out -covermode=atomic ./...
          go tool cover -html=coverage.out -o coverage.html

      - name: Upload coverage reports
        uses: actions/upload-artifact@v4
        with:
          name: coverage-report
          path: coverage.html
          retention-days: 30

  # Build and verify (runs on PRs and pushes)
  build:
    name: Build
    runs-on: ubuntu-latest
    permissions:
      contents: read
      attestations: write
      id-token: write
    steps:
      - name: Checkout code
        uses: actions/checkout@v5

      - name: Setup Go
        uses: actions/setup-go@v5
        with:
          go-version: "1.25"
          cache: true

      - name: Install dependencies
        run: go mod download

      - name: Verify dependencies
        run: go mod verify

      - name: Build application
        run: |
          go build -v -o bin/tercul-backend ./cmd
          ls -la bin/

      - name: Test build
        run: ./bin/tercul-backend --help || echo "Binary built successfully"

      - name: Upload build artifacts
        uses: actions/upload-artifact@v4
        with:
          name: terbul-backend-binary
          path: bin/
          retention-days: 30

  # Matrix testing across Go versions (only on main branch pushes)
  test-matrix:
    name: Test Matrix (Go ${{ matrix.go-version }})
    runs-on: ubuntu-latest
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    strategy:
      matrix:
        go-version: ["1.22", "1.23", "1.24", "1.25"]
    services:
      postgres:
        image: postgres:15
        env:
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: testdb
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5
        ports:
          - 5432:5432

      redis:
        image: redis:7-alpine
        ports:
          - 6379:6379
        options: --health-cmd "redis-cli ping" --health-interval 10s --health-timeout 5s --health-retries 5

    steps:
      - name: Checkout code
        uses: actions/checkout@v5

      - name: Setup Go ${{ matrix.go-version }}
        uses: actions/setup-go@v5
        with:
          go-version: ${{ matrix.go-version }}
          cache: true

      - name: Install dependencies
        run: go mod download

      - name: Run tests
        run: go test -v -race ./...

      - name: Build
        run: go build -v ./...