name: GoLoom CI

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

env:
  GO_VERSION: '1.26'
  GOLANGCI_LINT_VERSION: 'v1.57.2'

jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

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

      - name: Cache golangci-lint
        uses: actions/cache@v4
        with:
          path: /usr/local/bin/golangci-lint
          key: golangci-lint-${{ env.GOLANGCI_LINT_VERSION }}

      - name: Install golangci-lint
        run: |
          if [ ! -f /usr/local/bin/golangci-lint ]; then
            curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b /usr/local/bin ${{ env.GOLANGCI_LINT_VERSION }}
          fi

      - name: Run golangci-lint
        run: golangci-lint run --timeout=5m --issues-exit-code=0

  test:
    name: Test
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

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

      - name: Run tests
        run: |
          test_files=$(find . -name "*_test.go" -type f)
          if [ -z "$test_files" ]; then
            echo "No test files found, skipping tests"
            exit 0
          fi
          go test -v -race -coverprofile=coverage.out ./...

      - name: Upload coverage
        if: success() && hashFiles('coverage.out') != ''
        uses: actions/upload-artifact@v3
        with:
          name: coverage-report
          path: coverage.out

  build:
    name: Build
    runs-on: ubuntu-latest
    needs: [lint, test]
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

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

      - name: Build binary
        run: |
          CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
            go build -ldflags="-s -w" -o goloom-server ./cmd/server

      - name: Upload binary
        uses: actions/upload-artifact@v3
        with:
          name: goloom-server
          path: goloom-server

  docker:
    name: Docker Build
    runs-on: ubuntu-latest
    needs: [build]
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Download binary
        uses: actions/download-artifact@v3
        with:
          name: goloom-server

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Build Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: false
          tags: |
            goloom:latest
            goloom:${{ github.sha }}
          cache-from: type=gha
          cache-to: type=gha,mode=max