package main

import (
	"context"
	_ "embed"
	"fmt"
	"time"

	"fyne.io/systray"

	"github.com/sipeed/picoclaw/pkg/logger"
	"github.com/sipeed/picoclaw/web/backend/utils"
)

const (
	browserDelay    = 500 * time.Millisecond
	shutdownTimeout = 15 * time.Second
)

// onReady is called when the system tray is ready
func onReady() {
	// Set icon and tooltip
	systray.SetIcon(getIcon())
	systray.SetTooltip(fmt.Sprintf(T(AppTooltip), appName))

	// Create menu items
	mOpen := systray.AddMenuItem(T(MenuOpen), T(MenuOpenTooltip))
	mAbout := systray.AddMenuItem(T(MenuAbout), T(MenuAboutTooltip))

	// Add version info under About menu
	mVersion := mAbout.AddSubMenuItem(fmt.Sprintf(T(MenuVersion), appVersion), T(MenuVersionTooltip))
	mVersion.Disable()
	mRepo := mAbout.AddSubMenuItem(T(MenuGitHub), "")
	mDocs := mAbout.AddSubMenuItem(T(MenuDocs), "")

	systray.AddSeparator()

	// Add restart option
	mRestart := systray.AddMenuItem(T(MenuRestart), T(MenuRestartTooltip))

	systray.AddSeparator()

	// Quit option
	mQuit := systray.AddMenuItem(T(MenuQuit), T(MenuQuitTooltip))

	// Handle menu clicks
	go func() {
		for {
			select {
			case <-mOpen.ClickedCh:
				if err := openBrowser(); err != nil {
					logger.Errorf("Failed to open browser: %v", err)
				}

			case <-mVersion.ClickedCh:
				// Version info - do nothing, just shows current version

			case <-mRepo.ClickedCh:
				if err := utils.OpenBrowser("https://github.com/sipeed/picoclaw"); err != nil {
					logger.Errorf("Failed to open GitHub: %v", err)
				}

			case <-mDocs.ClickedCh:
				if err := utils.OpenBrowser(T(DocUrl)); err != nil {
					logger.Errorf("Failed to open docs: %v", err)
				}

			case <-mRestart.ClickedCh:
				fmt.Println("Restart request received...")
				if apiHandler != nil {
					if pid, err := apiHandler.RestartGateway(); err != nil {
						logger.Errorf("Failed to restart gateway: %v", err)
					} else {
						logger.Infof("Gateway restarted (PID: %d)", pid)
					}
				}

			case <-mQuit.ClickedCh:
				systray.Quit()
			}
		}
	}()

	if !*noBrowser {
		// Auto-open browser after systray is ready (if not disabled)
		// Check no-browser flag via environment or pass as parameter if needed
		if err := openBrowser(); err != nil {
			logger.Errorf("Warning: Failed to auto-open browser: %v", err)
		}
	}
}

// onExit is called when the system tray is exiting
func onExit() {
	fmt.Println(T(Exiting))

	// First, shutdown API handler
	if apiHandler != nil {
		apiHandler.Shutdown()
	}

	if server != nil {
		// Disable keep-alive to allow graceful shutdown
		server.SetKeepAlivesEnabled(false)

		ctx, cancel := context.WithTimeout(context.Background(), shutdownTimeout)
		defer cancel()
		if err := server.Shutdown(ctx); err != nil {
			// Context deadline exceeded is expected if there are active connections
			// This is not necessarily an error, so log it at info level
			if err == context.DeadlineExceeded {
				logger.Infof("Server shutdown timeout after %v, forcing close", shutdownTimeout)
			} else {
				logger.Errorf("Server shutdown error: %v", err)
			}
		} else {
			logger.Infof("Server shutdown completed successfully")
		}
	}
}

// openBrowser opens the PicoClaw web console in the default browser
func openBrowser() error {
	if serverAddr == "" {
		return fmt.Errorf("server address not set")
	}
	return utils.OpenBrowser(serverAddr)
}

// getIcon returns the system tray icon
func getIcon() []byte {
	return iconData
}