package utils

import (
	"fmt"
	"os"
	"os/exec"
	"runtime"
	"strings"

	"gitea.tecamino.com/paadi/tecamino-logger/logging"
)

func OpenBrowser(logger *logging.Logger, url string) error {
	var commands [][]string

	switch runtime.GOOS {
	case "windows":
		logger.Debug("OpenBrowser", "os: windows")
		commands = [][]string{
			// Chrome (most common)
			{`C:\Program Files\Google\Chrome\Application\chrome.exe`, "--kiosk", url},
			{`C:\Program Files (x86)\Google\Chrome\Application\chrome.exe`, "--kiosk", url},

			// Edge (default on modern Windows)
			{`C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe`, "--kiosk", url},
			{`C:\Program Files\Microsoft\Edge\Application\msedge.exe`, "--kiosk", url},

			// Firefox (no true kiosk, but fullscreen)
			{`C:\Program Files\Mozilla Firefox\firefox.exe`, "--kiosk", url},
			{`C:\Program Files (x86)\Mozilla Firefox\firefox.exe`, "--kiosk", url},

			// System default browser (always works)
			{"rundll32", "url.dll,FileProtocolHandler", url},
		}

	case "darwin":
		logger.Debug("OpenBrowser", "os: windows")
		commands = [][]string{
			// Chrome
			{"/Applications/Google Chrome.app/Contents/MacOS/Google Chrome", "--kiosk", url},

			// Edge
			{"/Applications/Microsoft Edge.app/Contents/MacOS/Microsoft Edge", "--kiosk", url},

			// Firefox
			{"/Applications/Firefox.app/Contents/MacOS/firefox", "--kiosk", url},

			// Safari (no kiosk flag, opens normally)
			{"open", "-a", "Safari", url},

			// System default browser
			{"open", url},
		}

	default: // Linux
		logger.Debug("OpenBrowser", "os: linux")
		if os.Getenv("DISPLAY") == "" &&
			os.Getenv("WAYLAND_DISPLAY") == "" &&
			os.Getenv("XDG_SESSION_TYPE") != "wayland" {
			return fmt.Errorf("os is running in headless mode; do not start browser")
		}

		commands = [][]string{
			// Chromium / Chrome
			{"chromium-browser", "--kiosk", url},
			{"chromium", "--kiosk", url},
			{"google-chrome", "--kiosk", url},

			// Firefox
			{"firefox", "--kiosk", url},

			// System default browser (best universal fallback)
			{"xdg-open", url},
		}
	}

	for _, cmd := range commands {
		execCmd := exec.Command(cmd[0], cmd[1:]...)
		if err := execCmd.Start(); err == nil {
			logger.Debug("OpenBrowser", "browser started with command: "+strings.Join(cmd, ", "))
			return nil
		} else {
			return err
		}
	}

	return fmt.Errorf("could not open browser")
}