variables:
  DOCKER_HOST: unix:///var/run/docker.sock

stages:
  - build
  - deploy

build:
  stage: build
  image: docker:24
  script:
    - docker build -f TeleBot/Dockerfile -t localhost:5000/telebot:latest ../
    - docker tag localhost:5000/telebot:latest localhost:5000/telebot:$CI_COMMIT_SHORT_SHA
    - docker push localhost:5000/telebot:latest
    - docker push localhost:5000/telebot:$CI_COMMIT_SHORT_SHA
  rules:
    - if: '$CI_COMMIT_BRANCH == "main"'
    - if: '$CI_COMMIT_TAG'

deploy:vps:
  stage: deploy
  image: docker:24
  before_script:
    - apk add --no-cache openssh-client bash curl
    - mkdir -p ~/.ssh
    - chmod 700 ~/.ssh
    - echo "$VPS_SSH_KEY_B64" | base64 -d > /tmp/deploy_key
    - chmod 600 /tmp/deploy_key
    - ssh-keyscan -p "$VPS_PORT" "$VPS_HOST" >> ~/.ssh/known_hosts 2>/dev/null
  script:
    - |
      # Save and transfer Docker image
      docker save localhost:5000/telebot:latest | ssh -i /tmp/deploy_key -p "$VPS_PORT" "$VPS_USER@$VPS_HOST" "docker load"

      # Deploy on VPS
      ssh -i /tmp/deploy_key -p "$VPS_PORT" "$VPS_USER@$VPS_HOST" bash -s << 'EOF'
      cd /opt/telebot
      docker-compose down
      docker-compose up -d

      # Health check
      for i in 1 2 3 4 5 6; do
        if pgrep -f "dotnet.*TeleBot" > /dev/null 2>&1; then
          echo "✅ TeleBot deployment successful"
          exit 0
        fi
        echo "Waiting for TeleBot to start... ($i/6)"
        sleep 10
      done

      echo "❌ TeleBot deployment failed - health check timeout"
      docker-compose logs --tail=50
      exit 1
      EOF
  rules:
    - if: '$CI_COMMIT_BRANCH == "main"'
      when: on_success
    - if: '$CI_COMMIT_TAG'
      when: manual
  after_script:
    - rm -f /tmp/deploy_key