name: Backend CI + Docker Deploy

on:
  push:
    branches:
      - main
      - master
    tags:
      - "backend-*.*.*"
    paths:
      - "backend/**"
      - "docker-compose.yml"
      - ".forgejo/workflows/backend.yml"
  pull_request:
    paths:
      - "backend/**"
      - "docker-compose.yml"
      - ".forgejo/workflows/backend.yml"
  workflow_dispatch:

permissions:
  contents: read

env:
  REGISTRY: ${{ vars.CONTAINER_REGISTRY || 'ghcr.io' }}
  IMAGE_NAME: ${{ vars.IMAGE_NAMESPACE }}/word-versioning-backend
  IMAGE_TAG: ${{ github.ref_name || 'latest' }}
  DEPLOY_HOST: ${{ vars.SSH_DEPLOY_HOST }}
  DEPLOY_USER: ${{ vars.SSH_DEPLOY_USER }}

jobs:
  build-and-test:
    name: Build and test backend
    runs-on: ubuntu-latest
    timeout-minutes: 30
    env:
      DOTNET_CLI_TELEMETRY_OPTOUT: "1"
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Setup .NET SDK
        uses: actions/setup-dotnet@v4
        with:
          dotnet-version: "8.0.x"

      - name: Restore solution
        run: dotnet restore backend/WordVersioning.slnx

      - name: Build solution
        run: dotnet build backend/WordVersioning.slnx --configuration Release --no-restore

      - name: Run tests
        run: dotnet test backend/WordVersioning.slnx --configuration Release --no-build --logger "trx;LogFileName=backend-tests.trx"

  docker-build:
    name: Build and push backend image
    needs: build-and-test
    if: github.event_name == 'push' || github.event_name == 'workflow_dispatch'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

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

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

      - name: Build and push backend image
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./backend/WordVersioning.Api/Dockerfile
          push: true
          tags: |
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }}
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest

  deploy:
    name: Deploy backend container
    needs: docker-build
    if: github.event_name == 'push' || github.event_name == 'workflow_dispatch'
    runs-on: ubuntu-latest
    steps:
      - name: Deploy over SSH
        uses: appleboy/ssh-action@v1.0.3
        with:
          host: ${{ env.DEPLOY_HOST }}
          username: ${{ env.DEPLOY_USER }}
          key: ${{ secrets.SSH_PRIVATE_KEY }}
          script: |
            set -e
            echo "${{ secrets.CONTAINER_REGISTRY_PASSWORD }}" | docker login ${{ env.REGISTRY }} -u "${{ vars.CONTAINER_REGISTRY_USERNAME }}" --password-stdin
            docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }}
            docker compose -f /opt/word-versioning/docker-compose.prod.yml up -d api
            docker image prune -f