name: Build Docker Image

on:
  push:
    branches:
      - main
      - master
  pull_request:
    branches:
      - main
      - master

jobs:
  build:
    runs-on: ubuntu-latest
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      
      - name: Extract metadata
        id: meta
        run: |
          echo "date=$(date +'%Y%m%d-%H%M%S')" >> $GITHUB_OUTPUT
          echo "sha_short=$(echo ${GITHUB_SHA} | cut -c1-7)" >> $GITHUB_OUTPUT
      
      - name: Build Docker image
        run: |
          docker build \
            -t myapp:${{ steps.meta.outputs.sha_short }} \
            -t myapp:latest \
            -f Dockerfile \
            .
      
      - name: List images
        run: docker images | grep myapp