name: Release - Build & Push Containers

on:
  push:
    branches:
      - main
    paths:
      - 'apps/**'
      - '.containers/python/Dockerfile'
      - 'packages/**'
      - 'pyproject.toml'
      - 'uv.lock'

env:
  REGISTRY: gitea.ia-innovacion.work
  REGISTRY_PATH: innovacion/mayacontigo

jobs:
  detect-changes:
    runs-on: ubuntu-latest
    outputs:
      changed-apps: ${{ steps.detect.outputs.changed-apps }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Detect changed apps
        id: detect
        run: |
          # Get list of changed apps compared to previous commit
          if [ "${{ github.event.before }}" = "0000000000000000000000000000000000000000" ]; then
            # Initial push - build all apps
            CHANGED_APPS=$(ls -d apps/*/ | sed 's|apps/||g' | sed 's|/||g' | jq -R -s -c 'split("\n")[:-1]')
          else
            # Compare with previous commit
            CHANGED_APPS=$(git diff --name-only ${{ github.event.before }} ${{ github.event.after }} | grep '^apps/' | cut -d/ -f2 | sort -u | jq -R -s -c 'split("\n") | map(select(length > 0))')
          fi
          
          echo "changed-apps=$CHANGED_APPS" >> $GITHUB_OUTPUT
          echo "Changed apps: $CHANGED_APPS"

  build-and-push:
    needs: detect-changes
    if: needs.detect-changes.outputs.changed-apps != '[]'
    runs-on: ubuntu-latest
    strategy:
      matrix:
        app: ${{ fromJson(needs.detect-changes.outputs.changed-apps) }}
      fail-fast: false
    steps:
      - uses: actions/checkout@v4

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

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

      - name: Extract metadata
        id: meta
        run: |
          IMAGE="${{ env.REGISTRY }}/${{ env.REGISTRY_PATH }}-${{ matrix.app }}"
          echo "image=$IMAGE" >> $GITHUB_OUTPUT
          echo "tags=$IMAGE:latest,$IMAGE:${{ github.sha }}" >> $GITHUB_OUTPUT

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          file: .containers/python/Dockerfile
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          build-args: |
            PACKAGE=${{ matrix.app }}
          cache-from: type=registry,ref=${{ steps.meta.outputs.image }}:buildcache
          cache-to: type=registry,ref=${{ steps.meta.outputs.image }}:buildcache,mode=max

      - name: Image summary
        run: |
          echo "### ✅ Built and pushed: ${{ matrix.app }}" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "Image: ${{ steps.meta.outputs.image }}" >> $GITHUB_STEP_SUMMARY
          echo "Tags: latest, ${{ github.sha }}" >> $GITHUB_STEP_SUMMARY