package commands

import (
	"fmt"
	"log/slog"
	"os"
	"os/signal"
	"syscall"

	"github.com/iomodo/staff/server"
	"github.com/spf13/cobra"
)

var serverCmd = &cobra.Command{
	Use:   "server",
	Short: "Start the Staff server with automatic agent startup",
	Long: `Start the Staff server which automatically loads configuration from config.yaml 
and starts all configured agents to process tasks continuously.

The server will:
- Load agent configurations from config.yaml
- Start all configured agents in the background
- Continuously process assigned tasks
- Create GitHub PRs for completed tasks
- Run until manually stopped with Ctrl+C

Example:
  staff server                    # Start server with default config.yaml
  staff server --config custom.yaml  # Start server with custom config`,
	RunE: runServer,
}

var configPath string

func init() {
	serverCmd.Flags().StringVarP(&configPath, "config", "c", "config.yaml", "Path to configuration file")
	rootCmd.AddCommand(serverCmd)
}

func runServer(cmd *cobra.Command, args []string) error {
	// Create logger
	logger := slog.New(slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{
		Level: slog.LevelInfo,
	}))

	// Create server instance
	srv, err := server.NewServer(logger, configPath)
	if err != nil {
		return fmt.Errorf("failed to create server: %w", err)
	}

	// Start server
	if err := srv.Start(); err != nil {
		return fmt.Errorf("failed to start server: %w", err)
	}

	// Setup graceful shutdown
	sigChan := make(chan os.Signal, 1)
	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)

	logger.Info("Server is running. Press Ctrl+C to stop...")

	// Wait for shutdown signal
	<-sigChan

	logger.Info("Shutdown signal received, stopping server...")
	srv.Shutdown()

	return nil
}