name: Docker build and release

on:
  push:
    branches: [main]

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    outputs:
      tag: ${{ steps.meta.outputs.tag }}
    steps:
      - name: Checkout
        uses: https://gitea.com/actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set release tag
        id: meta
        run: |
          echo "tag=v$(date +%Y%m%d)-${GITHUB_SHA:0:7}" >> $GITHUB_OUTPUT

      - name: Extract registry host
        id: registry
        run: |
          echo "host=${GITHUB_SERVER_URL#https://}" >> $GITHUB_OUTPUT

      # REGISTRY_TOKEN: Personal Access Token с правом write:package (или токен из Package Registry)
      - name: Log in to Gitea Container Registry
        run: |
          if [ -z "${{ secrets.REGISTRY_TOKEN }}" ]; then
            echo "::error::REGISTRY_TOKEN не задан. Добавьте секрет с токеном (scope: write:package)."
            exit 1
          fi
          echo "${{ secrets.REGISTRY_TOKEN }}" | docker login ${{ steps.registry.outputs.host }} -u ${{ github.actor }} --password-stdin

      - name: Build and push
        run: |
          REPO_LOWER=$(echo "${{ github.repository }}" | tr '[:upper:]' '[:lower:]')
          IMAGE="${{ steps.registry.outputs.host }}/$REPO_LOWER"
          TAG="${{ steps.meta.outputs.tag }}"
          docker build -t "$IMAGE:$TAG" -t "$IMAGE:latest" .
          docker push "$IMAGE:$TAG"
          docker push "$IMAGE:latest"

  release:
    runs-on: ubuntu-latest
    needs: build-and-push
    permissions:
      contents: write
    steps:
      - name: Checkout
        uses: https://gitea.com/actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Generate release notes
        id: notes
        run: |
          PREV=$(git describe --tags --abbrev=0 2>/dev/null || echo "")
          if [ -z "$PREV" ]; then
            echo "## Changes" > release_notes.md
            echo "" >> release_notes.md
            git log --pretty=format:"- %s (%h)" >> release_notes.md || echo "- Initial release" >> release_notes.md
          else
            echo "## Changes since $PREV" > release_notes.md
            echo "" >> release_notes.md
            git log "$PREV"..HEAD --pretty=format:"- %s (%h)" >> release_notes.md
          fi

      - name: Create release
        uses: https://gitea.com/actions/gitea-release-action@v1
        with:
          token: ${{ secrets.REGISTRY_TOKEN }}
          tag_name: ${{ needs.build-and-push.outputs.tag }}
          body_path: release_notes.md
          target_commitish: ${{ github.sha }}