name: Build and Push Docker Image

on:
  push:
    branches:
      - main
      - master

jobs:
  docker:
    runs-on: ubuntu

    steps:
      - name: Install dependencies
        run: |
          apt-get update
          apt-get install -y git docker.io

      - name: Clone repository
        run: |
          git clone ${{ github.server_url }}/${{ github.repository }} repo
          cd repo
          git checkout ${{ github.sha }}

      - name: Generate tags
        run: |
          cd repo
          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
        run: |
          echo "${{ secrets.GITEA_TOKEN }}" | docker login \
            ${{ github.server_url }} \
            -u "${{ github.actor }}" \
            --password-stdin

      - 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: |
          cd repo

          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 images
        run: |
          docker push ${{ github.server_url }}/${IMAGE_NAME}:latest
          docker push ${{ github.server_url }}/${IMAGE_NAME}:${SHORT_SHA}
          docker push ${{ github.server_url }}/${IMAGE_NAME}:${BUILD_DATE}