name: CI

on:
  push:

env:
  REGISTRY: gitea.vodsystem.ddns.net
  IMAGE_PREFIX: dylan/vod-system

jobs:
  unit-tests:
    name: Maven unit tests
    runs-on: ubuntu-latest

    steps:
      - name: Check out repository
        uses: https://github.com/actions/checkout@v4

      - name: Set up Java 21
        uses: https://github.com/actions/setup-java@v4
        with:
          distribution: temurin
          java-version: "21"
          cache: maven

      - name: Run unit tests
        run: ./mvnw --batch-mode --no-transfer-progress test

  build-and-push:
    name: Build and push images
    needs: unit-tests
    if: gitea.ref == 'refs/heads/master'
    runs-on: ubuntu-latest

    steps:
      - name: Check out repository
        uses: https://github.com/actions/checkout@v4

      - name: Set up Docker Buildx
        uses: https://github.com/docker/setup-buildx-action@v3

      - name: Log in to Gitea container registry
        uses: https://github.com/docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ gitea.actor }}
          password: ${{ secrets.REGISTRY_TOKEN }}

      - name: Build and push backend image
        uses: https://github.com/docker/build-push-action@v6
        with:
          context: .
          file: src/main/Dockerfile
          push: true
          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-backend:latest
          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-backend:buildcache
          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-backend:buildcache,mode=max

      - name: Build and push frontend image
        uses: https://github.com/docker/build-push-action@v6
        with:
          context: ./frontend
          file: frontend/Dockerfile
          push: true
          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-frontend:latest
          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-frontend:buildcache
          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-frontend:buildcache,mode=max

      - name: Build and push rtmp image
        uses: https://github.com/docker/build-push-action@v6
        with:
          context: ./nginx
          file: nginx/Dockerfile
          push: true
          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-rtmp:latest
          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-rtmp:buildcache
          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-rtmp:buildcache,mode=max

  deploy:
    name: Deploy to server
    needs: build-and-push
    if: gitea.ref == 'refs/heads/master'
    runs-on: ubuntu-latest

    steps:
      - name: Check out repository
        uses: https://github.com/actions/checkout@v4

      - name: Copy production compose file to server
        uses: https://github.com/appleboy/scp-action@v0.1.7
        with:
          host: ${{ vars.DEPLOY_HOST }}
          username: ${{ vars.DEPLOY_USER }}
          port: 22
          key: ${{ secrets.DEPLOY_SSH_KEY }}
          source: docker-compose.prod.yml
          target: ${{ vars.DEPLOY_PATH }}
          strip_components: 0

      - name: Pull latest images and restart containers
        uses: https://github.com/appleboy/ssh-action@v1.0.3
        with:
          host: ${{ vars.DEPLOY_HOST }}
          username: ${{ vars.DEPLOY_USER }}
          port: 22
          key: ${{ secrets.DEPLOY_SSH_KEY }}
          envs: REGISTRY,REGISTRY_USER,REGISTRY_TOKEN,DEPLOY_PATH
          script: |
            set -e
            echo "$REGISTRY_TOKEN" | docker login "$REGISTRY" -u "$REGISTRY_USER" --password-stdin
            cd "$DEPLOY_PATH"
            docker compose -f docker-compose.prod.yml pull
            docker compose -f docker-compose.prod.yml up -d --remove-orphans
        env:
          REGISTRY: ${{ env.REGISTRY }}
          REGISTRY_USER: ${{ gitea.actor }}
          REGISTRY_TOKEN: ${{ secrets.REGISTRY_TOKEN }}
          DEPLOY_PATH: ${{ vars.DEPLOY_PATH }}