release.yml

name: Create Release

on:
  push:
    tags:
      - "v*.*.*"
  workflow_dispatch:
    inputs:
      version:
        description: "Version to release (e.g., v1.0.0)"
        required: true
        type: string
      dry_run:
        description: "Dry run (create draft release without publishing)"
        required: false
        default: "false"
        type: boolean

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  validate-version:
    runs-on: ubuntu-latest
    timeout-minutes: 10
    outputs:
      version: ${{ steps.get_version.outputs.version }}
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Get version
        id: get_version
        run: |
          if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
            echo "version=${{ github.event.inputs.version }}" >> $GITHUB_OUTPUT
          else
            echo "version=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
          fi

      - name: Validate version format
        run: |
          if [[ ! "${{ steps.get_version.outputs.version }}" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
            echo "Error: Version must be in format vX.Y.Z (e.g., v1.0.0)"
            exit 1
          fi

      - name: Check if tag already exists
        run: |
          if git rev-parse "${{ steps.get_version.outputs.version }}" >/dev/null 2>&1; then
            echo "Error: Tag ${{ steps.get_version.outputs.version }} already exists"
            exit 1
          fi

  generate-changelog:
    runs-on: ubuntu-latest
    timeout-minutes: 15
    needs: [validate-version]
    outputs:
      changelog: ${{ steps.changelog.outputs.changelog }}
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Get previous tag
        id: previous_tag
        run: |
          PREVIOUS_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")
          echo "previous_tag=$PREVIOUS_TAG" >> $GITHUB_OUTPUT

      - name: Generate changelog
        id: changelog
        run: |
          echo "# Release ${{ needs.validate-version.outputs.version }}" > changelog.md
          echo "" >> changelog.md
          
          if [ -n "${{ steps.previous_tag.outputs.previous_tag }}" ]; then
            echo "## Changes since ${{ steps.previous_tag.outputs.previous_tag }}" >> changelog.md
            echo "" >> changelog.md
            
            git log ${{ steps.previous_tag.outputs.previous_tag }}..HEAD --pretty=format:"- %s (%h)" >> changelog.md
          else
            echo "## Initial Release" >> changelog.md
            echo "" >> changelog.md
            git log --pretty=format:"- %s (%h)" >> changelog.md
          fi
          
          echo "" >> changelog.md
          echo "" >> changelog.md
          echo "## Contributors" >> changelog.md
          echo "" >> changelog.md
          git shortlog -sn ${{ steps.previous_tag.outputs.previous_tag }}..HEAD | awk '{$1=""; print "- "$0}' | sed 's/^ //' >> changelog.md
          
          CHANGELOG=$(cat changelog.md)
          echo "changelog<<EOF" >> $GITHUB_OUTPUT
          echo "$CHANGELOG" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

      - name: Upload changelog
        uses: actions/upload-artifact@v4
        with:
          name: changelog
          path: changelog.md

  build-release-artifacts:
    runs-on: ubuntu-latest
    timeout-minutes: 60
    needs: [validate-version]
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: "18"

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.11"

      - name: Build frontend
        working-directory: frontend
        run: |
          npm ci
          npm run build

      - name: Create frontend distribution
        run: |
          tar -czf flavorsnap-frontend-${{ needs.validate-version.outputs.version }}.tar.gz -C frontend .next public

      - name: Prepare Python package
        run: |
          mkdir -p flavorsnap-python
          cp -r src ml-model-api models flavorsnap-python/
          cp requirements.txt requirements-dev.txt flavorsnap-python/
          tar -czf flavorsnap-python-${{ needs.validate-version.outputs.version }}.tar.gz flavorsnap-python

      - name: Upload artifacts
        uses: actions/upload-artifact@v4
        with:
          name: release-artifacts
          path: |
            flavorsnap-frontend-*.tar.gz
            flavorsnap-python-*.tar.gz

  build-docker-images:
    runs-on: ubuntu-latest
    timeout-minutes: 60
    needs: [validate-version]
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

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

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

      - name: Build and push release image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: |
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ needs.validate-version.outputs.version }}
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
          labels: |
            org.opencontainers.image.version=${{ needs.validate-version.outputs.version }}
            org.opencontainers.image.revision=${{ github.sha }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            VERSION=${{ needs.validate-version.outputs.version }}
            BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ')

  create-release:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    needs: [validate-version, generate-changelog, build-release-artifacts, build-docker-images]
    
    steps:
      - name: Download changelog
        uses: actions/download-artifact@v4
        with:
          name: changelog

      - name: Download release artifacts
        uses: actions/download-artifact@v4
        with:
          name: release-artifacts

      - name: Create GitHub Release
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ needs.validate-version.outputs.version }}
          release_name: Release ${{ needs.validate-version.outputs.version }}
          body: |
            ${{ needs.generate-changelog.outputs.changelog }}
            
            ## Installation
            
            ### Docker
            \`\`\`bash
            docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ needs.validate-version.outputs.version }}
            \`\`\`
            
            ### Frontend Distribution
            \`\`\`bash
            wget https://github.com/${{ github.repository }}/releases/download/${{ needs.validate-version.outputs.version }}/flavorsnap-frontend-${{ needs.validate-version.outputs.version }}.tar.gz
            \`\`\`
            
            ### Python Package
            \`\`\`bash
            wget https://github.com/${{ github.repository }}/releases/download/${{ needs.validate-version.outputs.version }}/flavorsnap-python-${{ needs.validate-version.outputs.version }}.tar.gz
            \`\`\`
          draft: ${{ github.event.inputs.dry_run == 'true' }}
          prerelease: false

      - name: Upload frontend artifact
        uses: actions/upload-release-asset@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ steps.create_release.outputs.upload_url }}
          asset_path: ./flavorsnap-frontend-${{ needs.validate-version.outputs.version }}.tar.gz
          asset_name: flavorsnap-frontend-${{ needs.validate-version.outputs.version }}.tar.gz
          asset_content_type: application/gzip

      - name: Upload python artifact
        uses: actions/upload-release-asset@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ steps.create_release.outputs.upload_url }}
          asset_path: ./flavorsnap-python-${{ needs.validate-version.outputs.version }}.tar.gz
          asset_name: flavorsnap-python-${{ needs.validate-version.outputs.version }}.tar.gz
          asset_content_type: application/gzip

  notify-release:
    runs-on: ubuntu-latest
    needs: [create-release]
    if: always()
    
    steps:
      - name: Send release notification
        run: |
          if [ "${{ needs.create-release.result }}" == "success" ]; then
            echo "✅ Release ${{ needs.validate-version.outputs.version }} created successfully!"
            echo "📦 Docker image: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ needs.validate-version.outputs.version }}"
          else
            echo "❌ Release creation failed!"
            exit 1
          fi