name: Helm Chart Release

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

jobs:
  release-helm:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Install Helm
        uses: azure/setup-helm@v3
        with:
          version: "latest"

      - name: Determine version
        id: version
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            VERSION="${{ github.event.inputs.version }}"
          else
            # Extract version from tag (remove 'v' prefix)
            VERSION=${GITEA_REF_NAME#v}
          fi
          echo "VERSION=${VERSION}"
          # Export for subsequent steps
          echo "VERSION=${VERSION}" >> $GITHUB_ENV
          echo "📌 Chart version: ${VERSION}"

      - name: Update Chart version
        run: |
          # Update Chart.yaml with the new version
          sed -i "s/^version:.*/version: ${VERSION}/" helm/api7ee-demo-k8s/Chart.yaml

          # Update appVersion to match
          sed -i "s/^appVersion:.*/appVersion: \"${VERSION}\"/" helm/api7ee-demo-k8s/Chart.yaml

          # Update image tags in values.yaml to use this version
          sed -i "s|tag: \"main\"|tag: \"v${VERSION}\"|g" helm/api7ee-demo-k8s/values.yaml

          # Update registry and repository to Gitea values
          sed -i "s|registry: gitea.server_url|registry: ${{ gitea.server_url }}|g" helm/api7ee-demo-k8s/values.yaml
          sed -i "s|repository: gitea.repository/|repository: ${{ gitea.repository }}/|g" helm/api7ee-demo-k8s/values.yaml

          echo "📝 Updated Chart.yaml and values.yaml with version ${VERSION}"

      - name: Lint Helm chart
        run: |
          helm lint helm/api7ee-demo-k8s/

      - name: Package Helm chart
        run: |
          helm package helm/api7ee-demo-k8s/ --version ${VERSION}
          echo "CHART_FILE=api7ee-demo-k8s-${VERSION}.tgz" >> $GITHUB_ENV

          # Generate chart README with installation instructions
          cat > CHART_README.md << EOF
          # API7 Enterprise Edition Helm Chart v${VERSION}

          ## Installation

          \`\`\`bash
          # Add the Helm repository
          helm repo add api7ee https://${{ gitea.server_url }}/api/packages/${{ gitea.repository_owner }}/helm
          helm repo update

          # Install the chart
          helm install my-api7ee api7ee/api7ee-demo-k8s --version ${VERSION}

          # Install with custom values
          helm install my-api7ee api7ee/api7ee-demo-k8s --version ${VERSION} -f values.yaml
          \`\`\`

          ## Upgrade

          \`\`\`bash
          helm upgrade my-api7ee api7ee/api7ee-demo-k8s --version ${VERSION}
          \`\`\`

          ## Docker Images

          This chart uses the following Docker images:
          - Web: \`${{ gitea.server_url }}/${{ gitea.repository }}/web:v${VERSION}\`
          - API: \`${{ gitea.server_url }}/${{ gitea.repository }}/api:v${VERSION}\`
          EOF

      - name: Push Helm chart to Gitea Package Registry
        run: |
          # Upload versioned Helm chart
          curl --fail-with-body \
            -H "Authorization: token ${{ secrets.PACKAGES_PUSH_TOKEN }}" \
            -X POST \
            -F "chart=@${CHART_FILE}" \
            https://${{ gitea.server_url }}/api/packages/${{ gitea.repository_owner }}/helm/api/charts

          echo "✅ Helm chart v${VERSION} pushed to Gitea Package Registry"

      - name: Create Release
        if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
        run: |
          # Create release using Gitea API
          RELEASE_DATA=$(cat <<EOF
          {
            "tag_name": "v${VERSION}",
            "target_commitish": "${{ gitea.sha }}",
            "name": "v${VERSION}",
            "body": "## Helm Chart Release v${VERSION}\n\n### Installation\n\`\`\`bash\nhelm repo add api7ee https://${{ gitea.server_url }}/api/packages/${{ gitea.repository_owner }}/helm\nhelm repo update\nhelm install my-api7ee api7ee/api7ee-demo-k8s --version ${VERSION}\n\`\`\`\n\n### Docker Images\n- Web: \`${{ gitea.server_url }}/${{ gitea.repository }}/web:v${VERSION}\`\n- API: \`${{ gitea.server_url }}/${{ gitea.repository }}/api:v${VERSION}\`\n\n### Chart Package\n- Download: [api7ee-demo-k8s-${VERSION}.tgz](https://${{ gitea.server_url }}/${{ gitea.repository }}/releases/download/v${VERSION}/api7ee-demo-k8s-${VERSION}.tgz)",
            "draft": false,
            "prerelease": false
          }
          EOF
          )

          # Create the release
          RELEASE_RESPONSE=$(curl -X POST \
            -H "Authorization: token ${{ secrets.PACKAGES_PUSH_TOKEN }}" \
            -H "Content-Type: application/json" \
            -d "${RELEASE_DATA}" \
            "https://${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}/releases")

          # Get release ID
          RELEASE_ID=$(echo $RELEASE_RESPONSE | jq -r '.id')

          if [ "$RELEASE_ID" != "null" ] && [ -n "$RELEASE_ID" ]; then
            echo "✅ Release created with ID: $RELEASE_ID"

            # Upload chart file as release asset
            curl -X POST \
              -H "Authorization: token ${{ secrets.PACKAGES_PUSH_TOKEN }}" \
              -H "Content-Type: application/gzip" \
              --data-binary "@${CHART_FILE}" \
              "https://${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}/releases/${RELEASE_ID}/assets?name=api7ee-demo-k8s-${VERSION}.tgz"

            # Upload README as release asset
            curl -X POST \
              -H "Authorization: token ${{ secrets.PACKAGES_PUSH_TOKEN }}" \
              -H "Content-Type: text/markdown" \
              --data-binary "@CHART_README.md" \
              "https://${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}/releases/${RELEASE_ID}/assets?name=CHART_README.md"

            echo "✅ Release assets uploaded successfully"
          else
            echo "⚠️ Failed to create release"
            echo "Response: $RELEASE_RESPONSE"
          fi

      - name: Summary
        run: |
          echo "## 🎉 Helm Chart Release Summary"
          echo ""
          echo "- **Version:** v${VERSION}"
          echo "- **Chart:** ${CHART_FILE}"
          echo "- **Registry:** https://${{ gitea.server_url }}/api/packages/${{ gitea.repository_owner }}/helm"
          echo ""
          echo "### Installation Commands"
          echo '```bash'
          echo "helm repo add api7ee https://${{ gitea.server_url }}/api/packages/${{ gitea.repository_owner }}/helm"
          echo "helm repo update"
          echo "helm install my-api7ee api7ee/api7ee-demo-k8s --version ${VERSION}"
          echo '```'