name: Build and Push Docker Image

on:
  push:
    branches:
      - main

env:
  REGISTRY: repositry.talutasku.ee
  IMAGE_NAME: my-python-app

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

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

      - name: Log in to registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ secrets.REGISTRY_USERNAME }}
          password: ${{ secrets.REGISTRY_PASSWORD }}

      - name: Extract git SHA
        id: vars
        run: echo "sha=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: |
            ${{ env.REGISTRY }}/v2/${{ env.IMAGE_NAME }}:${{ steps.vars.outputs.sha }}
            ${{ env.REGISTRY }}/v2/${{ env.IMAGE_NAME }}:latest
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Update image tag file
        run: |
          echo "${{ steps.vars.outputs.sha }}" > k8s/image-tag.txt

      - name: Commit and push image tag
        run: |
          git config --local user.email "gitea-ci@example.com"
          git config --local user.name "Gitea CI"
          git add k8s/image-tag.txt
          git commit -m "Update image tag to ${{ steps.vars.outputs.sha }}" || exit 0
          git push