name: CD - Deploy on main

on:
  pull_request:
    branches:
      - main

jobs:
  deploy:
    runs-on: self-hosted

    steps:
      # 1) S'assurer que Node.js est installé
      - name: Ensure Node.js is installed
        shell: sh
        run: |
          if command -v node >/dev/null 2>&1; then
            echo "Node.js already installed: $(node -v)"
          else
            echo "Node.js not found, installing..."
            apk update && apk add --no-cache nodejs
            echo "Node.js installed: $(node -v)"
          fi

      # 2) S'assurer que Java & Maven sont installés
      - name: Ensure Java & Maven are installed
        shell: sh
        run: |
          if command -v java >/dev/null 2>&1; then
            echo "Java already installed:"
            java -version
          else
            echo "Java not found, installing OpenJDK 17..."
            apk update && apk add --no-cache openjdk17-jdk
            echo "Java installed:"
            java -version
          fi

          if command -v mvn >/dev/null 2>&1; then
            echo "Maven already installed:"
            mvn -version
          else
            echo "Maven not found, installing Maven..."
            apk update && apk add --no-cache maven
            echo "Maven installed:"
            mvn -version
          fi

      # 3) Détecter JAVA_HOME dynamiquement et le propager
      - name: Detect JAVA_HOME dynamically
        shell: sh
        run: |
          JAVA_BIN=$(readlink -f "$(command -v java)")
          JAVA_HOME=$(dirname "$(dirname "$JAVA_BIN")")
          echo "Detected JAVA_HOME=$JAVA_HOME"
          echo "JAVA_HOME=$JAVA_HOME" >> "$GITHUB_ENV"

      # 4) Checkout du dépôt
      - name: Checkout repository
        uses: actions/checkout@v4

      # 5) Afficher quelques infos utiles
      - name: Show current commit and tools
        shell: sh
        run: |
          echo "Current commit:"
          git rev-parse HEAD
          echo "JAVA_HOME is: $JAVA_HOME"
          java -version
          mvn -version

      # 6) S'assurer que le client Docker + docker-compose sont installés
      - name: Ensure Docker CLI is installed
        shell: sh
        run: |
          if command -v docker >/dev/null 2>&1; then
            echo "Docker CLI already installed:"
            docker version || true
          else
            echo "Docker CLI not found, installing..."
            apk update && apk add --no-cache docker docker-compose
            echo "Docker CLI installed:"
            docker version || true
          fi

      # 7) Générer le .env utilisé par docker-compose-prod.yml
      - name: Generate .env from Gitea secrets
        shell: sh
        run: |
          cat > .env <<EOF
          POSTGRES_DB_FISCAD=${{ secrets.POSTGRES_DB_FISCAD }}
          POSTGRES_USER_FISCAD=${{ secrets.POSTGRES_USER_FISCAD }}
          POSTGRES_PASSWORD_FISCAD=${{ secrets.POSTGRES_PASSWORD_FISCAD }}
          EOF
          echo "Generated .env:"
          cat .env

      # 8) Build Maven pour générer le jar dans target/
      - name: Build backend with Maven
        shell: sh
        run: mvn -B clean package

      # 9) Déploiement en prod avec docker-compose-prod.yml
      - name: Deploy using docker-compose (prod)
        shell: sh
        run: |
          # IMPORTANT : on fixe le nom du projet compose
          export COMPOSE_PROJECT_NAME=fiscad
          
          # Puis on déploie avec un nom de projet fixe
          docker-compose -f docker-compose-prod.yml pull || true
          docker-compose -f docker-compose-prod.yml down --remove-orphans
          docker-compose -f docker-compose-prod.yml up -d --build

      # 10) Nettoyage des images non utilisées
      - name: Cleanup unused images
        shell: sh
        run: docker image prune -f || true