name: Build Modules

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

jobs:
  build-commoncode:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Build CommonCode
        run: cd CommonCode && ./gradlew build

  build-encode:
    needs: build-commoncode
    if: ${{ needs.build-commoncode.result == 'success' && (needs.build-commoncode.outputs.changed != 'CommonCode' || github.event_name == 'push') }}
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Check if Encode has changed
        id: check-encode
        run: echo ::set-output name=changed::$(git diff --name-only ${{ github.event.before }} ${{ github.event.after }} Encode)

      - name: Build Encode module
        run: |
          if [ "${{ steps.check-encode.outputs.changed }}" == "Encode" ] || [ "${{ github.event_name }}" == "push" ]; then
            cd Encode
            ./gradlew build
          else
            echo "Encode has not changed. Skipping Encode module build."
          fi

      - name: Generate Docker image tag
        id: docker-tag
        run: echo ::set-output name=tag::$(date -u +"%Y.%m.%d")-$(uuidgen)

      - name: Build and push Docker image
        if: ${{ steps.check-encode.outputs.changed == 'Encode' || github.event_name == 'push' }}
        uses: docker/build-push-action@v2
        with:
          context: ./Encode
          push: true
          tags: |
            bskjon/media-processing--encode:latest
            bskjon/media-processing--encode:${{ github.sha }}
            bskjon/media-processing--encode:${{ github.ref }}
            bskjon/media-processing--encode:${{ steps.docker-tag.outputs.tag }}

  build-reader:
    needs: build-commoncode
    if: ${{ needs.build-commoncode.result == 'success' && (needs.build-commoncode.outputs.changed != 'CommonCode' || github.event_name == 'push') }}
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Check if Reader has changed
        id: check-reader
        run: echo ::set-output name=changed::$(git diff --name-only ${{ github.event.before }} ${{ github.event.after }} Reader)

      - name: Build Reader module
        run: |
          if [ "${{ steps.check-reader.outputs.changed }}" == "Reader" ] || [ "${{ github.event_name }}" == "push" ]; then
            cd Reader
            ./gradlew build
          else
            echo "Reader has not changed. Skipping Reader module build."
          fi

      - name: Generate Docker image tag
        id: docker-tag
        run: echo ::set-output name=tag::$(date -u +"%Y.%m.%d")-$(uuidgen)

      - name: Build and push Docker image
        if: ${{ steps.check-reader.outputs.changed == 'Reader' || github.event_name == 'push' }}
        uses: docker/build-push-action@v2
        with:
          context: ./Reader
          push: true
          tags: |
            bskjon/media-processing--reader:latest
            bskjon/media-processing--reader:${{ github.sha }}
            bskjon/media-processing--reader:${{ github.ref }}
            bskjon/media-processing--reader:${{ steps.docker-tag.outputs.tag }}

  build-pymetadata:
    if: ${{ github.event_name == 'push' }}
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Check if pyMetadata has changed
        id: check-pymetadata
        run: echo ::set-output name=changed::$(git diff --name-only ${{ github.event.before }} ${{ github.event.after }} pyMetadata)

      - name: Build pyMetadata module
        run: |
          if [ "${{ steps.check-pymetadata.outputs.changed }}" == "pyMetadata" ] || [ "${{ github.event_name }}" == "push" ]; then
            cd pyMetadata
            # Add the necessary build steps for your Python module here
          else
            echo "pyMetadata has not changed. Skipping pyMetadata module build."
          fi

      - name: Generate Docker image tag
        id: docker-tag
        run: echo ::set-output name=tag::$(date -u +"%Y.%m.%d")-$(uuidgen)

      - name: Build and push Docker image
        if: ${{ steps.check-pymetadata.outputs.changed == 'pyMetadata' || github.event_name == 'push' }}
        uses: docker/build-push-action@v2
        with:
          context: ./pyMetadata
          push: true
          tags: |
            bskjon/media-processing--pymetadata:latest
            bskjon/media-processing--pymetadata:${{ github.sha }}
            bskjon/media-processing--pymetadata:${{ github.ref }}
            bskjon/media-processing--pymetadata:${{ steps.docker-tag.outputs.tag }}