package commands

import (
	"fmt"
)

func HandleMonitoring(args []string) {
	if len(args) == 0 {
		showMonitoringHelp()
		return
	}

	command := args[0]
	switch command {
	case "metrics":
		showMetrics()
	case "alerts":
		showAlerts()
	case "health":
		showHealth()
	case "logs":
		showLogs(args[1:])
	default:
		fmt.Printf("Unknown monitoring command: %s\n", command)
		showMonitoringHelp()
	}
}

func showMonitoringHelp() {
	fmt.Println("Monitoring Management")
	fmt.Println("Usage: telecom-cli monitoring <command> [options]")
	fmt.Println("\nAvailable commands:")
	fmt.Println("  metrics                 - Show system metrics")
	fmt.Println("  alerts                  - Show active alerts")
	fmt.Println("  health                  - Show system health")
	fmt.Println("  logs <service>          - Show service logs")
}

func showMetrics() {
	fmt.Println("System Metrics:")
	fmt.Println("Metric                    Value      Status")
	fmt.Println("----------------------------------------------------")
	fmt.Println("API Response Time         125ms      Good")
	fmt.Println("Database Connections      15/100     Good")
	fmt.Println("CPU Usage                 45%        Good")
	fmt.Println("Memory Usage              2.3GB/8GB  Good")
	fmt.Println("Disk Usage                45%        Good")
	fmt.Println("Network Throughput        1.2GB/s    Good")
	fmt.Println("Active Subscribers        1,234      Good")
	fmt.Println("Request Rate              450/s      Good")
}

func showAlerts() {
	fmt.Println("Active Alerts:")
	fmt.Println("Severity    Service     Message                           Time")
	fmt.Println("--------------------------------------------------------------------")
	fmt.Println("High        API Server  High memory usage detected          14:30")
	fmt.Println("Medium      Database    Slow query detected                 14:25")
	fmt.Println("Low         Gateway     Packet loss increased               14:20")
}

func showHealth() {
	fmt.Println("System Health Status:")
	fmt.Println("Service           Status    Uptime    Last Check")
	fmt.Println("----------------------------------------------------")
	fmt.Println("API Server        Healthy   99.9%     14:45:30")
	fmt.Println("Charging Engine   Healthy   99.8%     14:45:30")
	fmt.Println("Packet Gateway    Healthy   99.7%     14:45:30")
	fmt.Println("Web Dashboard     Healthy   99.9%     14:45:30")
	fmt.Println("Database          Healthy   99.5%     14:45:30")
	fmt.Println("Redis             Healthy   99.9%     14:45:30")
}

func showLogs(args []string) {
	service := "all"
	if len(args) > 0 {
		service = args[0]
	}

	fmt.Printf("Recent logs for %s:\n", service)
	fmt.Println("2024-01-15 16:45:30 [INFO] Service started successfully")
	fmt.Println("2024-01-15 16:45:35 [INFO] Database connection established")
	fmt.Println("2024-01-15 16:45:40 [INFO] API server listening on port 8000")
	fmt.Println("2024-01-15 16:45:45 [INFO] Health check passed")
	fmt.Println("2024-01-15 16:45:50 [WARN] High memory usage detected")
	fmt.Println("2024-01-15 16:45:55 [ERROR] Database connection timeout")
	fmt.Println("2024-01-15 16:46:00 [INFO] Database connection restored")
}