name: CI/CD Pipeline

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

env:
  REGISTRY: git.hnrx.net
  IMAGE_NAME: ${{ github.repository }}

jobs:
  lint:
    name: Lint & Check
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v6
      
      - name: Install uv
        uses: astral-sh/setup-uv@v2
        with:
          version: "latest"
          enable-cache: true
          
      - name: Install dependencies
        run: uv sync --frozen --dev

      - name: Run Ruff (Lint & Syntax Check)
        run: uv run ruff check src

  build-and-push:
    name: Build & Push Docker Image
    needs: lint
    if: github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/v')
    runs-on: gitea-runner-on-dsm
    permissions:
      packages: write
      contents: read
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Log in to the Container registry
        uses: docker/login-action@v4
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITEA_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v6
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=ref,event=tag

      - name: Determine PEP 440 Version for Python Package
        id: pkg_version
        run: |
          if [[ "${{ github.ref }}" == refs/tags/v* ]]; then
            echo "version=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT
          else
            echo "version=0.0.dev${{ github.run_number }}" >> $GITHUB_OUTPUT
          fi

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4

      - name: Build and push Docker image
        uses: docker/build-push-action@v7
        with:
          context: .
          push: true
          platforms: linux/amd64,linux/arm64
          build-args: VERSION=${{ steps.pkg_version.outputs.version }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache
          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache,mode=max

      - name: Update Gitea Release Notes
        if: startsWith(github.ref, 'refs/tags/v')
        run: |
          TAG_NAME=${GITHUB_REF#refs/tags/}
          
          # Fetch the current release
          RELEASE_JSON=$(curl -s -H "Authorization: token ${{ secrets.GITEA_TOKEN }}" \
            ${{ github.api_url }}/repos/${{ github.repository }}/releases/tags/${TAG_NAME})
            
          # Extract Release ID (if it exists)
          RELEASE_ID=$(echo "$RELEASE_JSON" | jq -r '.id // empty')
          
          if [ -n "$RELEASE_ID" ] && [ "$RELEASE_ID" != "null" ]; then
            OLD_BODY=$(echo "$RELEASE_JSON" | jq -r '.body // ""')
            
            # Check if Docker Image section already exists
            if [[ "$OLD_BODY" != *"## 🐳 Docker Image"* ]]; then
              NEW_BODY="${OLD_BODY}\n\n## 🐳 Docker Image\n\`\`\`bash\ndocker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${TAG_NAME}\n\`\`\`"
              
              jq -n --arg body "$NEW_BODY" '{body: $body}' | \
              curl -s -X PATCH \
                -H "Authorization: token ${{ secrets.GITEA_TOKEN }}" \
                -H "Content-Type: application/json" \
                -d @- \
                ${{ github.api_url }}/repos/${{ github.repository }}/releases/${RELEASE_ID}
                
              echo "Successfully updated Release Notes for $TAG_NAME"
            else
              echo "Release Notes already contain the Docker pull command."
            fi
          else
            echo "No associated release found for tag $TAG_NAME. Skipping."
          fi