pipeline {
  agent any

  environment {
    REGISTRY = "registry.wk-archi-o24a-15m-g3.fr"
    IMAGE_NAME = "the-tip-top-backend"
    APP_PATH = "/srv/devops/the-tip-top"
    DEPLOY_HOST = "localhost"
  }

  stages {

    stage('Checkout') {
      steps {
        echo "📦 Récupération du code source..."
        checkout scm
      }
    }

    stage('Build Docker image') {
      steps {
        echo "🐳 Construction de l’image Docker backend..."
        sh '''
          docker build -t $REGISTRY/$IMAGE_NAME:${BUILD_NUMBER} .
          docker tag $REGISTRY/$IMAGE_NAME:${BUILD_NUMBER} $REGISTRY/$IMAGE_NAME:latest
        '''
      }
    }

    stage('Push to Registry') {
      steps {
        echo "📤 Envoi de l’image vers le registre privé..."
        withCredentials([usernamePassword(credentialsId: 'registry-credentials', usernameVariable: 'REG_USER', passwordVariable: 'REG_PASS')]) {
          sh '''
            echo "$REG_PASS" | docker login $REGISTRY -u $REG_USER --password-stdin
            docker push $REGISTRY/$IMAGE_NAME:${BUILD_NUMBER}
            docker push $REGISTRY/$IMAGE_NAME:latest
          '''
        }
      }
    }

    stage('Deploy') {
      steps {
        echo "🚀 Déploiement du backend..."
        sh '''
          if [ ! -f $APP_PATH/docker-compose.yml ]; then
            echo "❌ Fichier docker-compose.yml introuvable !" >&2
            exit 1
          fi

          cd $APP_PATH
          docker compose pull backend
          docker compose up -d --force-recreate backend
        '''
      }
    }

    stage('Health Check') {
      steps {
        echo "🩺 Vérification du backend après déploiement..."
        script {
          def statusCode = sh(
            script: "curl -k -s -o /dev/null -w '%{http_code}' https://api.dsp5-archi-o24a-15m-g3.fr || echo 000",
            returnStdout: true
          ).trim()
          
          if (statusCode != '200') {
            error("❌ Health check échoué - code HTTP ${statusCode}")
          } else {
            echo "✅ Health check réussi - backend opérationnel !"
          }
        }
      }
    }
  }

  post {
    success {
      echo "✅ Déploiement backend terminé avec succès !"
    }
    failure {
      echo "❌ Échec du pipeline backend."
    }
  }
}