# .gitea/workflows/release.yml

name: Build and Release Docker Image

on:
  push:
    branches:
      - main # Or your default branch, e.g., master
    tags:
      - 'v*.*.*' # Trigger on version tags like v1.0.0, v1.2.3-alpha
  pull_request: # Optional: build on PRs for testing, no push or release
    branches:
      - main # Or your default branch

env:
  # Assumes your Gitea instance FQDN is correctly identified by gitea.instance
  # e.g., gitea.example.com
  # The image will be named: <gitea_instance_url>/<owner>/<repo_name>:<tag>
  REGISTRY_HOST: ${{ gitea.instance }}
  IMAGE_NAME_PATH: ${{ gitea.owner }}/${{ gitea.repository_name }}

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest # Ensure your Gitea runner supports Docker
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

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

      - name: Login to Gitea Container Registry
        # Ensure GITEA_TOKEN secret is created in your repository settings.
        # It needs permissions to write to packages (container registry).
        # gitea.actor is the user who triggered the workflow.
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY_HOST }}
          username: ${{ gitea.actor }}
          password: ${{ secrets.GITEA_TOKEN }}

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY_HOST }}/${{ env.IMAGE_NAME_PATH }}
          tags: |
            # For pushes to the default branch (e.g., main)
            type=raw,value=latest,enable={{is_default_branch}}
            type=sha,prefix=,format=short,enable={{is_default_branch}} # e.g., sha-1234567

            # For version tags like v1.2.3
            # Produces: 1.2.3 from tag v1.2.3
            type=semver,pattern={{version}}
            # Produces: 1.2 from tag v1.2.3
            type=semver,pattern={{major}}.{{minor}}
            # Produces: 1 from tag v1.2.3
            type=semver,pattern={{major}}
            # Also tag vX.Y.Z as 'latest'
            type=raw,value=latest,enable=${{ startsWith(gitea.ref, 'refs/tags/v') }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          # Only push if it's not a pull request event
          push: ${{ gitea.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          # Enable build cache using Gitea Actions cache
          cache-from: type=gha
          cache-to: type=gha,mode=max

  create-gitea-release:
    needs: build-and-push-image
    # Only run this job if the trigger was a tag push matching 'v*.*.*'
    if: startsWith(gitea.ref, 'refs/tags/v')
    runs-on: ubuntu-latest
    steps:
      - name: Get tag name
        id: get_tag
        # GITEA_REF is like 'refs/tags/v1.2.3', this extracts 'v1.2.3'
        run: echo "TAG_NAME=${GITEA_REF#refs/tags/}" >> $GITEA_ENV

      - name: Create Gitea Release
        env:
          # GITEA_TOKEN needs permissions to create releases (e.g., repository:write).
          # It can be the same token used for registry login if it has sufficient scope.
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
          TAG_NAME: ${{ env.TAG_NAME }} # From previous step
          OWNER: ${{ gitea.owner }}
          REPO: ${{ gitea.repository_name }}
          # gitea.server_url is like https://gitea.example.com
          GITEA_API_URL: ${{ gitea.server_url }}/api/v1
        run: |
          echo "Creating Gitea release for tag: $TAG_NAME"
          RELEASE_API_ENDPOINT="$GITEA_API_URL/repos/$OWNER/$REPO/releases"

          # You can customize the release body, e.g., by fetching changelog notes
          RELEASE_BODY="Official release for version $TAG_NAME."

          # Create the release using Gitea API
          response=$(curl --request POST \
            --url "$RELEASE_API_ENDPOINT" \
            --header "Authorization: token $GITEA_TOKEN" \
            --header "Content-Type: application/json" \
            --data @- <<EOF
          {
            "tag_name": "$TAG_NAME",
            "name": "$TAG_NAME",
            "body": "$RELEASE_BODY",
            "draft": false,
            "prerelease": false
          }
          EOF
          )

          echo "Gitea API Response: $response"

          # Basic check for success (Gitea API returns an 'id' on successful release creation)
          if echo "$response" | grep -q '"id":'; then
            echo "✅ Gitea Release '$TAG_NAME' created successfully."
          else
            echo "❌ Error creating Gitea Release. Response: $response"
            exit 1
          fi