name: Build and Push Docker Image

on:
  push:
    branches:
      - main
      - master

jobs:
  docker:
    runs-on: ubuntu-latest

    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Generate tags
        id: vars
        run: |
          echo "SHORT_SHA=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
          echo "BUILD_DATE=$(date -u +'%Y%m%d-%H%M%S')" >> $GITHUB_ENV

      - name: Login to Gitea Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ github.server_url }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITEA_TOKEN }}

      - name: Set image name
        run: |
          IMAGE_NAME=$(echo "${{ github.repository }}" | tr '[:upper:]' '[:lower:]')
          echo "IMAGE_NAME=$IMAGE_NAME" >> $GITHUB_ENV

      - name: Build Docker image
        run: |
          docker build \
            -t ${{ github.server_url }}/${IMAGE_NAME}:latest \
            -t ${{ github.server_url }}/${IMAGE_NAME}:${SHORT_SHA} \
            -t ${{ github.server_url }}/${IMAGE_NAME}:${BUILD_DATE} \
            .

      - name: Push latest tag
        run: |
          docker push ${{ github.server_url }}/${IMAGE_NAME}:latest

      - name: Push commit hash tag
        run: |
          docker push ${{ github.server_url }}/${IMAGE_NAME}:${SHORT_SHA}

      - name: Push datetime tag
        run: |
          docker push ${{ github.server_url }}/${IMAGE_NAME}:${BUILD_DATE}