name: Build, Test and Deploy

on:
  push:
    branches:
      - main
      - int
      - dev

jobs:
  test-backend:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.10'

      - name: Install dependencies
        run: |
          pip install -r backend/requirements.txt
          pip install pytest httpx

      - name: Run Backend Tests
        run: |
          export PYTHONPATH=$PYTHONPATH:$(pwd)/backend
          pytest backend/tests

  build-and-push:
    needs: test-backend
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Set Environment Variables
        run: |
          if [[ "${{ gitea.ref }}" == "refs/heads/main" ]]; then
            echo "TAG=prod" >> $GITHUB_ENV
          elif [[ "${{ gitea.ref }}" == "refs/heads/int" ]]; then
            echo "TAG=int" >> $GITHUB_ENV
          else
            echo "TAG=dev" >> $GITHUB_ENV
          fi

      - name: Login to Gitea Registry
        uses: docker/login-action@v2
        with:
          registry: ${{ secrets.REGISTRY_URL }}
          username: ${{ secrets.GITEA_USER }}
          password: ${{ secrets.GITEA_TOKEN }}

      - name: Build and Push Backend
        uses: docker/build-push-action@v4
        with:
          context: ./backend
          push: true
          tags: ${{ secrets.REGISTRY_URL }}/${{ gitea.repository_owner }}/print-calculator-backend:${{ env.TAG }}

      - name: Build and Push Frontend
        uses: docker/build-push-action@v4
        with:
          context: ./frontend
          push: true
          tags: ${{ secrets.REGISTRY_URL }}/${{ gitea.repository_owner }}/print-calculator-frontend:${{ env.TAG }}

  deploy:
    needs: build-and-push
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Set Deployment Vars
        run: |
          if [[ "${{ gitea.ref }}" == "refs/heads/main" ]]; then
            echo "ENV=prod" >> $GITHUB_ENV
            echo "TAG=prod" >> $GITHUB_ENV
          elif [[ "${{ gitea.ref }}" == "refs/heads/int" ]]; then
            echo "ENV=int" >> $GITHUB_ENV
            echo "TAG=int" >> $GITHUB_ENV
          else
            echo "ENV=dev" >> $GITHUB_ENV
            echo "TAG=dev" >> $GITHUB_ENV
          fi

      - name: Create Remote Directory
        uses: appleboy/ssh-action@v0.1.10
        with:
          host: ${{ secrets.SERVER_HOST }}
          username: ${{ secrets.SERVER_USER }}
          key: ${{ secrets.SSH_PRIVATE_KEY }}
          script: mkdir -p /mnt/user/appdata/print-calculator/${{ env.ENV }}/

      - name: Copy Compose File to Server
        uses: appleboy/scp-action@v0.1.4
        with:
          host: ${{ secrets.SERVER_HOST }}
          username: ${{ secrets.SERVER_USER }}
          key: ${{ secrets.SSH_PRIVATE_KEY }}
          source: "docker-compose.deploy.yml"
          target: "/mnt/user/appdata/print-calculator/${{ env.ENV }}/"

      - name: Copy Env File to Server
        uses: appleboy/scp-action@v0.1.4
        with:
          host: ${{ secrets.SERVER_HOST }}
          username: ${{ secrets.SERVER_USER }}
          key: ${{ secrets.SSH_PRIVATE_KEY }}
          source: "deploy/envs/${{ env.ENV }}.env"
          target: "/mnt/user/appdata/print-calculator/${{ env.ENV }}/.env"

      - name: Execute Remote Deployment
        uses: appleboy/ssh-action@v0.1.10
        with:
          host: ${{ secrets.SERVER_HOST }}
          username: ${{ secrets.SERVER_USER }}
          key: ${{ secrets.SSH_PRIVATE_KEY }}
          script: |
            cd /mnt/user/appdata/print-calculator/${{ env.ENV }}/
            
            # Rename the copied env file to strictly '.env' so docker compose picks it up automatically
            mv ${{ env.ENV }}.env .env
            
            # Login to registry
            echo ${{ secrets.GITEA_TOKEN }} | docker login ${{ secrets.REGISTRY_URL }} -u ${{ secrets.GITEA_USER }} --password-stdin
            
            # Pull new images
            # We force reading from .env just to be safe, though default behavior does it too.
            docker compose --env-file .env -f docker-compose.deploy.yml pull
            
            # Start/Update services
            # TAG is inside .env now, so we don't even need to pass it explicitly!
            docker compose --env-file .env -f docker-compose.deploy.yml up -d --remove-orphans