# CI/CD Pipeline for dbbackup
# Triggers: push, pull_request, tags

name: CI/CD

on:
  push:
    branches:
      - main
      - master
      - develop
    tags:
      - 'v*'
  pull_request:
    branches:
      - main
      - master

env:
  GO_VERSION: '1.23'
  GOLANGCI_LINT_VERSION: 'v1.62.2'

jobs:
  # =============================================================================
  # Test Job - Runs tests with race detection and coverage
  # =============================================================================
  test:
    name: Test
    runs-on: ubuntu-latest
    container:
      image: golang:1.23-bookworm
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - name: Cache Go modules
        uses: actions/cache@v4
        with:
          path: |
            ~/.cache/go-build
            /go/pkg/mod
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: |
            ${{ runner.os }}-go-

      - name: Download dependencies
        run: go mod download

      - name: Run tests with race detection
        run: |
          go test -race -coverprofile=coverage.out -covermode=atomic ./...

      - name: Generate coverage report
        run: |
          go tool cover -func=coverage.out
          go tool cover -html=coverage.out -o coverage.html

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

      - name: Generate coverage badge
        run: |
          COVERAGE=$(go tool cover -func=coverage.out | grep total | awk '{print $3}' | sed 's/%//')
          echo "Total coverage: ${COVERAGE}%"
          
          # Determine badge color
          if [ "$(echo "$COVERAGE >= 80" | bc)" -eq 1 ]; then
            COLOR="brightgreen"
          elif [ "$(echo "$COVERAGE >= 60" | bc)" -eq 1 ]; then
            COLOR="green"
          elif [ "$(echo "$COVERAGE >= 40" | bc)" -eq 1 ]; then
            COLOR="yellow"
          else
            COLOR="red"
          fi
          
          # Create badge JSON (can be served via shields.io endpoint)
          echo "{\"schemaVersion\":1,\"label\":\"coverage\",\"message\":\"${COVERAGE}%\",\"color\":\"${COLOR}\"}" > coverage-badge.json

      - name: Upload coverage badge
        uses: actions/upload-artifact@v4
        with:
          name: coverage-badge
          path: coverage-badge.json
          retention-days: 90

  # =============================================================================
  # Lint Job - Static code analysis with golangci-lint
  # =============================================================================
  lint:
    name: Lint
    runs-on: ubuntu-latest
    container:
      image: golang:1.23-bookworm
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - name: Cache Go modules
        uses: actions/cache@v4
        with:
          path: |
            ~/.cache/go-build
            /go/pkg/mod
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: |
            ${{ runner.os }}-go-

      - name: Install golangci-lint
        run: |
          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b /usr/local/bin ${{ env.GOLANGCI_LINT_VERSION }}

      - name: Run golangci-lint
        run: |
          golangci-lint run --timeout=5m --out-format=colored-line-number ./...

  # =============================================================================
  # Build Job - Verify build for all platforms
  # =============================================================================
  build:
    name: Build
    runs-on: ubuntu-latest
    needs: [test, lint]
    container:
      image: golang:1.23-bookworm
    strategy:
      matrix:
        goos: [linux, darwin, windows]
        goarch: [amd64, arm64]
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - name: Cache Go modules
        uses: actions/cache@v4
        with:
          path: |
            ~/.cache/go-build
            /go/pkg/mod
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: |
            ${{ runner.os }}-go-

      - name: Build binary
        env:
          GOOS: ${{ matrix.goos }}
          GOARCH: ${{ matrix.goarch }}
          CGO_ENABLED: 0
        run: |
          BINARY_NAME=dbbackup
          if [ "${{ matrix.goos }}" = "windows" ]; then
            BINARY_NAME="${BINARY_NAME}.exe"
          fi
          
          go build -ldflags="-s -w -X main.version=${{ github.ref_name }} -X main.commit=${{ github.sha }}" \
            -o dist/${BINARY_NAME}-${{ matrix.goos }}-${{ matrix.goarch }} \
            ./...

      - name: Upload build artifact
        uses: actions/upload-artifact@v4
        with:
          name: binary-${{ matrix.goos }}-${{ matrix.goarch }}
          path: dist/
          retention-days: 7

  # =============================================================================
  # SBOM Job - Generate Software Bill of Materials
  # =============================================================================
  sbom:
    name: Generate SBOM
    runs-on: ubuntu-latest
    needs: [test]
    container:
      image: golang:1.23-bookworm
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - name: Install Syft
        run: |
          curl -sSfL https://raw.githubusercontent.com/anchore/syft/main/install.sh | sh -s -- -b /usr/local/bin

      - name: Generate SBOM (SPDX)
        run: |
          syft . -o spdx-json=sbom-spdx.json

      - name: Generate SBOM (CycloneDX)
        run: |
          syft . -o cyclonedx-json=sbom-cyclonedx.json

      - name: Upload SBOM artifacts
        uses: actions/upload-artifact@v4
        with:
          name: sbom
          path: |
            sbom-spdx.json
            sbom-cyclonedx.json
          retention-days: 90

  # =============================================================================
  # Release Job - Create release with goreleaser (only on tags)
  # =============================================================================
  release:
    name: Release
    runs-on: ubuntu-latest
    needs: [test, lint, build]
    if: startsWith(github.ref, 'refs/tags/v')
    container:
      image: golang:1.23-bookworm
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 1
        with:
          fetch-depth: 0

      - name: Install goreleaser
        run: |
          apt-get update && apt-get install -y git
          curl -sSfL https://github.com/goreleaser/goreleaser/releases/download/v2.4.8/goreleaser_Linux_x86_64.tar.gz | tar xz -C /usr/local/bin goreleaser

      - name: Install Syft for SBOM
        run: |
          curl -sSfL https://raw.githubusercontent.com/anchore/syft/main/install.sh | sh -s -- -b /usr/local/bin

      - name: Download SBOM artifacts
        uses: actions/download-artifact@v4
        with:
          name: sbom
          path: ./sbom/

      - name: Run goreleaser
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
        run: |
          goreleaser release --clean

      - name: Upload release artifacts
        uses: actions/upload-artifact@v4
        with:
          name: release-artifacts
          path: dist/
          retention-days: 90

  # =============================================================================
  # Docker Job - Build and push Docker image (optional, on tags)
  # =============================================================================
  docker:
    name: Docker Image
    runs-on: ubuntu-latest
    needs: [test, lint]
    if: startsWith(github.ref, 'refs/tags/v')
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - name: Set up Docker Buildx
        run: |
          docker buildx create --use --name multiarch

      - name: Login to Gitea Registry
        run: |
          echo "${{ secrets.GITEA_TOKEN }}" | docker login git.uuxo.net -u ${{ github.repository_owner }} --password-stdin

      - name: Extract version
        id: version
        run: |
          VERSION=${GITHUB_REF#refs/tags/}
          echo "version=${VERSION}" >> $GITHUB_OUTPUT
          echo "version_short=${VERSION#v}" >> $GITHUB_OUTPUT

      - name: Build and push Docker image
        run: |
          docker buildx build \
            --platform linux/amd64,linux/arm64 \
            --tag git.uuxo.net/${{ github.repository }}:${{ steps.version.outputs.version }} \
            --tag git.uuxo.net/${{ github.repository }}:latest \
            --push \
            .