---
# dance-lessons-coach Docker Push Workflow
# Separate workflow for Docker image building and pushing
# Can be triggered manually or by CI/CD workflow

name: Docker Push

on:
  # Manual trigger for testing or production
  workflow_dispatch:
    inputs:
      ref:
        description: 'Git reference (branch/tag)'
        required: false
        type: string
        default: ''

# Environment variables
env:
  GITEA_INTERNAL: "https://gitea.arcodange.lab/"
  GITEA_EXTERNAL: "https://gitea.arcodange.fr/"
  GITEA_ORG: "arcodange"
  GITEA_REPO: "dance-lessons-coach"
  CI_REGISTRY: "gitea.arcodange.lab"

jobs:
  docker-push:
    name: Docker Push
    runs-on: ubuntu-latest-ca
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ github.event.inputs.ref || github.ref }}

      - name: Login to Gitea Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.CI_REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.PACKAGES_TOKEN }}

      - name: Calculate dependency hash
        id: calc_hash
        run: |
          # Calculate dependency hash (same method as build-cache job)
          DEPS_HASH=$(sha256sum go.mod go.sum docker/Dockerfile.build | sha256sum | cut -d' ' -f1 | head -c 12)
          echo "Dependency hash: $DEPS_HASH"
          echo "deps_hash=$DEPS_HASH" >> $GITHUB_OUTPUT

      - name: Build and push Docker image
        run: |
          source VERSION
          IMAGE_VERSION="$MAJOR.$MINOR.$PATCH${PRERELEASE:+-$PRERELEASE}"
          
          # Use the calculated dependency hash
          DEPS_HASH="${{ steps.calc_hash.outputs.deps_hash }}"
          echo "Using dependency hash: $DEPS_HASH"
          
          TAGS="$IMAGE_VERSION latest ${{ github.sha }}"
          echo "Building Docker image with tags: $TAGS"
          
          # Build the production image using inline version of docker/Dockerfile
          docker build -t dance-lessons-coach -f - . <<'EOF'
          # dance-lessons-coach Docker Image
          # Multi-stage build for production deployment
          
          # Stage 1: Build binary
          FROM golang:1.26.1-alpine AS builder
          
          WORKDIR /app
          
          # Copy go mod files
          COPY go.mod go.sum ./
          RUN go mod download
          
          # Copy source code
          COPY . ./
          
          # Install swag and generate Swagger docs only if they don't exist
          RUN if [ ! -f pkg/server/docs/swagger.json ]; then \
              echo "📝 Generating Swagger documentation..." && \
              go install github.com/swaggo/swag/cmd/swag@latest && \
              cd pkg/server && go generate && \
              echo "✅ Swagger documentation generated"; \
              else \
              echo "✅ Swagger documentation already exists, skipping swag installation and generation"; \
              fi
          
          # Build binary
          RUN CGO_ENABLED=0 GOOS=linux go build -o /dance-lessons-coach ./cmd/server
          
          # Stage 2: Final image
          FROM alpine:3.18
          
          WORKDIR /app
          
          # Install dependencies
          RUN apk add --no-cache ca-certificates tzdata
          
          # Copy binary from builder
          COPY --from=builder /dance-lessons-coach /app/dance-lessons-coach
          
          # Copy configuration
          COPY config.yaml /app/config.yaml
          
          # Set permissions
          RUN chmod +x /app/dance-lessons-coach
          
          # Set timezone
          ENV TZ=UTC
          
          # Expose port
          EXPOSE 8080
          
          # Health check
          HEALTHCHECK --interval=30s --timeout=3s \
              CMD wget -q --spider http://localhost:8080/api/health || exit 1
          
          # Entry point
          ENTRYPOINT ["/app/dance-lessons-coach"]
          EOF
          
          for TAG in $TAGS; do
            IMAGE_NAME="${{ env.CI_REGISTRY }}/${{ env.GITEA_ORG }}/${{ env.GITEA_REPO }}:$TAG"
            echo "Tagging and pushing: $IMAGE_NAME"
            docker tag dance-lessons-coach "$IMAGE_NAME"
            docker push "$IMAGE_NAME"
          done

      - name: Show published images
        run: |
          source VERSION
          IMAGE_VERSION="$MAJOR.$MINOR.$PATCH${PRERELEASE:+-$PRERELEASE}"
          echo "📦 Published Docker images:"
          echo "  - ${{ env.CI_REGISTRY }}/${{ env.GITEA_ORG }}/${{ env.GITEA_REPO }}:$IMAGE_VERSION"
          echo "  - ${{ env.CI_REGISTRY }}/${{ env.GITEA_ORG }}/${{ env.GITEA_REPO }}:latest"
          echo "  - ${{ env.CI_REGISTRY }}/${{ env.GITEA_ORG }}/${{ env.GITEA_REPO }}:${{ github.sha }}"