package http

import (
	"runtime"
	"sync"

	"apigo.cc/gojs"
	"apigo.cc/gojs/goja"
	"github.com/go-rod/rod"
	"github.com/go-rod/rod/lib/launcher"
	"github.com/ssgo/u"
)

type Chrome struct {
	id       string
	launcher *launcher.Launcher
	browser  *rod.Browser
}

var chromes = map[string]*Chrome{}
var chromesLock sync.Mutex

func (ch *Chrome) Close(vm *goja.Runtime) {
	logger := gojs.GetLogger(vm)
	if ch.browser != nil {
		logger.Info("关闭本地 Chrome 浏览器", "id", ch.id)
		ch.browser.Close()
		ch.browser = nil
	}
	if ch.launcher != nil {
		ch.launcher.Cleanup()
		ch.launcher = nil
	}

	chromesLock.Lock()
	delete(chromes, ch.id)
	chromesLock.Unlock()
}

func CloseAllChrome(vm *goja.Runtime) {
	n := len(chromes)
	if n > 0 {
		for _, ch := range chromes {
			ch.Close(vm)
		}
		logger := gojs.GetLogger(vm)
		logger.Info("关闭所有 Chrome 浏览器", "count", n)
	}
}

func StartChrome(showWindow *bool, vm *goja.Runtime) (*Chrome, error) {
	logger := gojs.GetLogger(vm)
	ch := &Chrome{}
	ch.id = u.UniqueId()
	ch.browser = rod.New()
	if localBrowserPath, hasLocalBrowser := launcher.LookPath(); hasLocalBrowser {
		ch.launcher = launcher.New().Bin(localBrowserPath).Headless(!u.Bool(showWindow)).Set("no-sandbox").Set("disable-gpu").Set("disable-dev-shm-usage").Set("single-process")
		switch runtime.GOOS {
		case "linux":
			ch.launcher.Set("disable-setuid-sandbox")
		case "windows":
			ch.launcher.Set("disable-features=RendererCodeIntegrity")
		}
		localChromeURL, err := ch.launcher.Launch()
		if err != nil {
			ch.Close(vm)
			return nil, gojs.Err(err)
		}
		logger.Info("启动本地 Chrome 浏览器", "id", ch.id, "url", localChromeURL, "path", localBrowserPath)
		ch.browser.ControlURL(localChromeURL)
	}
	if err := ch.browser.Connect(); err != nil {
		ch.Close(vm)
		return nil, gojs.Err(err)
	}

	chromesLock.Lock()
	chromes[ch.id] = ch
	chromesLock.Unlock()
	return ch, nil

}