# This workflow will build and deploy the SeaweedFS telemetry server
# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go

name: Deploy Telemetry Server

on:
  push:
    branches: [ "master" ]
    paths:
      - 'telemetry/**'
  workflow_dispatch:
    inputs:
      setup:
        description: 'Run first-time server setup'
        required: true
        type: boolean
        default: false
      deploy:
        description: 'Deploy telemetry server to remote server'
        required: true
        type: boolean
        default: false

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Set up Go
        uses: actions/setup-go@v4
        with:
          go-version: '1.24'

      - name: Build Telemetry Server
        run: |
          go mod tidy
          cd telemetry/server
          GOOS=linux GOARCH=amd64 go build -o telemetry-server main.go

      - name: First-time Server Setup
        if: github.event_name == 'workflow_dispatch' && inputs.setup
        env:
          SSH_PRIVATE_KEY: ${{ secrets.TELEMETRY_SSH_PRIVATE_KEY }}
          REMOTE_HOST: ${{ secrets.TELEMETRY_HOST }}
          REMOTE_USER: ${{ secrets.TELEMETRY_USER }}
        run: |
          mkdir -p ~/.ssh
          echo "$SSH_PRIVATE_KEY" > ~/.ssh/deploy_key
          chmod 600 ~/.ssh/deploy_key
          echo "Host *" > ~/.ssh/config
          echo "  StrictHostKeyChecking no" >> ~/.ssh/config

          # Create all required directories with proper permissions
          ssh -i ~/.ssh/deploy_key $REMOTE_USER@$REMOTE_HOST "
            mkdir -p ~/seaweedfs-telemetry/bin ~/seaweedfs-telemetry/logs ~/seaweedfs-telemetry/data ~/seaweedfs-telemetry/tmp && \
            chmod 755 ~/seaweedfs-telemetry/logs && \
            chmod 755 ~/seaweedfs-telemetry/data && \
            touch ~/seaweedfs-telemetry/logs/telemetry.log ~/seaweedfs-telemetry/logs/telemetry.error.log && \
            chmod 644 ~/seaweedfs-telemetry/logs/*.log"

          # Create systemd service file
          echo "
          [Unit]
          Description=SeaweedFS Telemetry Server
          After=network.target

          [Service]
          Type=simple
          User=$REMOTE_USER
          WorkingDirectory=/home/$REMOTE_USER/seaweedfs-telemetry
          ExecStart=/home/$REMOTE_USER/seaweedfs-telemetry/bin/telemetry-server -port=8353
          Restart=always
          RestartSec=5
          StandardOutput=append:/home/$REMOTE_USER/seaweedfs-telemetry/logs/telemetry.log
          StandardError=append:/home/$REMOTE_USER/seaweedfs-telemetry/logs/telemetry.error.log

          [Install]
          WantedBy=multi-user.target" > telemetry.service

          # Setup logrotate configuration
          echo "# SeaweedFS Telemetry service log rotation
          /home/$REMOTE_USER/seaweedfs-telemetry/logs/*.log {
              daily
              rotate 30
              compress
              delaycompress
              missingok
              notifempty
              create 644 $REMOTE_USER $REMOTE_USER
              postrotate
                  systemctl restart telemetry.service
              endscript
          }" > telemetry_logrotate

          # Copy Grafana dashboard and Prometheus config
          scp -i ~/.ssh/deploy_key telemetry/grafana-dashboard.json $REMOTE_USER@$REMOTE_HOST:~/seaweedfs-telemetry/
          scp -i ~/.ssh/deploy_key telemetry/prometheus.yml $REMOTE_USER@$REMOTE_HOST:~/seaweedfs-telemetry/

          # Copy and install service and logrotate files
          scp -i ~/.ssh/deploy_key telemetry.service telemetry_logrotate $REMOTE_USER@$REMOTE_HOST:~/seaweedfs-telemetry/
          ssh -i ~/.ssh/deploy_key $REMOTE_USER@$REMOTE_HOST "
            sudo mv ~/seaweedfs-telemetry/telemetry.service /etc/systemd/system/ && \
            sudo mv ~/seaweedfs-telemetry/telemetry_logrotate /etc/logrotate.d/seaweedfs-telemetry && \
            sudo systemctl daemon-reload && \
            sudo systemctl enable telemetry.service"

          rm -f ~/.ssh/deploy_key

      - name: Deploy Telemetry Server to Remote Server
        if: (github.event_name == 'push' && contains(github.ref, 'refs/heads/master')) || (github.event_name == 'workflow_dispatch' && inputs.deploy)
        env:
          SSH_PRIVATE_KEY: ${{ secrets.TELEMETRY_SSH_PRIVATE_KEY }}
          REMOTE_HOST: ${{ secrets.TELEMETRY_HOST }}
          REMOTE_USER: ${{ secrets.TELEMETRY_USER }}
        run: |
          mkdir -p ~/.ssh
          echo "$SSH_PRIVATE_KEY" > ~/.ssh/deploy_key
          chmod 600 ~/.ssh/deploy_key
          echo "Host *" > ~/.ssh/config
          echo "  StrictHostKeyChecking no" >> ~/.ssh/config

          # Create temp directory and copy binary
          ssh -i ~/.ssh/deploy_key $REMOTE_USER@$REMOTE_HOST "mkdir -p ~/seaweedfs-telemetry/tmp"
          scp -i ~/.ssh/deploy_key telemetry/server/telemetry-server $REMOTE_USER@$REMOTE_HOST:~/seaweedfs-telemetry/tmp/

          # Copy updated configuration files
          scp -i ~/.ssh/deploy_key telemetry/grafana-dashboard.json $REMOTE_USER@$REMOTE_HOST:~/seaweedfs-telemetry/
          scp -i ~/.ssh/deploy_key telemetry/prometheus.yml $REMOTE_USER@$REMOTE_HOST:~/seaweedfs-telemetry/

          # Stop service, move binary, and restart
          ssh -i ~/.ssh/deploy_key $REMOTE_USER@$REMOTE_HOST "
            sudo systemctl stop telemetry.service || true && \
            mkdir -p ~/seaweedfs-telemetry/bin && \
            mv ~/seaweedfs-telemetry/tmp/telemetry-server ~/seaweedfs-telemetry/bin/ && \
            chmod +x ~/seaweedfs-telemetry/bin/telemetry-server && \
            sudo systemctl start telemetry.service && \
            sudo systemctl status telemetry.service"

          # Verify deployment
          ssh -i ~/.ssh/deploy_key $REMOTE_USER@$REMOTE_HOST "
            echo 'Waiting for service to start...'
            sleep 5
            curl -f http://localhost:8353/health || echo 'Health check failed'"

          rm -f ~/.ssh/deploy_key

      - name: Notify Deployment Status
        if: always()
        run: |
          if [ "${{ job.status }}" == "success" ]; then
            echo "✅ Telemetry server deployment successful"
            echo "Dashboard: http://${{ secrets.TELEMETRY_HOST }}:8353"
            echo "Metrics: http://${{ secrets.TELEMETRY_HOST }}:8353/metrics"
          else
            echo "❌ Telemetry server deployment failed"
          fi