package main

import (
	"flag"
	"log"

	app "./pkg"
)

// CLI flags
var (
	title       string
	icon        string
	browser     string
	browserExec string
	url         string
)

func init() {
	flag.StringVar(&title, "title", "", "App launcher title, default uses the web page title")
	flag.StringVar(&icon, "icon", "", "App icon image (filesystem or URL), default uses the site favicon")
	flag.StringVar(&browser, "browser", "", "Browser executable, full path or command, default firefox or chromium")
	flag.StringVar(&browserExec, "exec", "", "Manually provide the browser exec string, like `firefox --ssb %s` or `chromium --app=%s`, "+
		"default is auto-detected based on Firefox and Chrome/ium.")
}

func main() {
	flag.Parse()

	// Detect defaults.
	if browser == "" {
		detected, err := app.DetectBrowser()
		if err != nil {
			panic("Failed to detect your web browser. Provide the -browser or -exec options to set one manually")
		}
		browser = detected
		log.Printf("Detected browser: %s", browser)
	}
	if browserExec == "" {
		detected, err := app.DetectExec(browser)
		if err != nil {
			panic("Failed to detect the browser exec line. Provide the -exec option to set one manually")
		}
		browserExec = detected
		log.Printf("Browser exec line for PWA: '%s'", browserExec)
	}

	url = flag.Arg(0)
	if url == "" {
		panic("Usage: pwa-launcher [options] <url>")
	}

	app.Run(app.Parameters{
		Title: title,
		URL:   url,
		Exec:  browserExec,
		Icon:  icon,
	})
}