name: Test, Build, Deploy

on:
  push:
    branches:
      - '*'
    paths-ignore:
      - '**/*.md'
  pull_request:
    branches:
      - '*' 
    paths-ignore:
      - '**/*.md'
  workflow_dispatch: 
  create:
    branches:
      - '*'

jobs:
  validate-branch-name:
    runs-on: ubuntu-latest
    outputs:
      valid_branch_name: ${{ steps.validate.outputs.valid_branch_name }}
    steps:
      - name: Validate Branch Name
        id: validate
        run: |
          BRANCH_NAME="${{ github.ref_name }}"
          if [[ "$BRANCH_NAME" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
            echo "::error::Branch name '$BRANCH_NAME' is not allowed. Branch names using versioning names like 'v1.2.3' are prohibited."
            echo "valid_branch_name=false" >> $GITHUB_OUTPUT
            exit 1
          else
            echo "Branch name '$BRANCH_NAME' is valid."
            echo "valid_branch_name=true" >> $GITHUB_OUTPUT
          fi

  unit-tests:
    needs: validate-branch-name
    if: needs.validate-branch-name.outputs.valid_branch_name == 'true'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.10.13'
      - name: Install testing dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r docker/requirements.txt
      - name: Run unit tests
        run: |
          python3 -m pytest -o log_cli=false

  build:
    needs: unit-tests
    runs-on: ubuntu-latest
    if: github.event_name == 'push'
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: '0'

      - name: Bump version and push tag
        if: ${{ github.ref_name == 'latest' }}
        id: setversion
        uses: anothrNick/github-tag-action@1.36.0
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          WITH_V: true
          RELEASE_BRANCHES: latest
         
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

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

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Store short Commit ID in env variable
        id: vars
        run: |
          calculatedSha=$(git rev-parse --short ${{ github.sha }})
          echo "SHORT_COMMIT_ID=$calculatedSha" >> $GITHUB_ENV

      - name: Determine Docker image tag
        id: determine_tag
        run: |
          BRANCH_NAME="${{ github.ref_name }}"
          if [[ "$BRANCH_NAME" == "dev" ]]; then
            IMAGE_TAG="dev"
          elif [[ "$BRANCH_NAME" == "latest" ]]; then
            IMAGE_TAG=${{ steps.setversion.outputs.new_tag }}
          else
            IMAGE_TAG=$BRANCH_NAME
          fi
          # Convert IMAGE_TAG to lowercase
          IMAGE_TAG=$(echo $IMAGE_TAG | tr '[:upper:]' '[:lower:]')
          echo "IMAGE_TAG=$IMAGE_TAG" >> $GITHUB_ENV
          
          # Convert repository owner to lowercase
          REPO_OWNER=$(echo ${{ github.repository_owner }} | tr '[:upper:]' '[:lower:]')
          echo "REPO_OWNER=$REPO_OWNER" >> $GITHUB_ENV

      - name: Build, Tag, and Push Docker Image
        env:
          IMAGE_NAME: ghcr.io/${{ env.REPO_OWNER }}/decluttarr
          IMAGE_TAG: ${{ env.IMAGE_TAG }}
        run: |
          BRANCH_NAME="${{ github.ref_name }}"
          TAG_LATEST=""
          if [[ "$BRANCH_NAME" == "latest" ]]; then
            TAG_LATEST="-t $IMAGE_NAME:latest"
          fi

          docker buildx build \
            --platform linux/amd64,linux/arm64 -f docker/Dockerfile . \
            --progress plain \
            -t $IMAGE_NAME:$IMAGE_TAG \
            $TAG_LATEST \
            --label com.decluttarr.version=$IMAGE_TAG \
            --label com.decluttarr.commit=$SHORT_COMMIT_ID \
            --build-arg IMAGE_TAG=$IMAGE_TAG \
            --build-arg SHORT_COMMIT_ID=$SHORT_COMMIT_ID \
            --push

  docker-image-clean-up:
    needs: build
    runs-on: ubuntu-latest
    steps:
      - name: Clean up Docker images
        uses: dataaxiom/ghcr-cleanup-action@v1.0.8
        with:
          exclude-tags: dev
          delete-untagged: true
          delete-ghost-images: true
          delete-partial-images: true
          token: ${{ secrets.GITHUB_TOKEN }}