package backend

import (
	"log"
	"os"

	"0xacab.org/leap/bitmask-vpn/pkg/bitmask"
	"0xacab.org/leap/bitmask-vpn/pkg/config"
	"0xacab.org/leap/bitmask-vpn/pkg/config/version"
)

func initializeBitmask() {
	if ctx == nil {
		log.Println("error: cannot initialize bitmask, ctx is nil")
		os.Exit(1)
	}
	bitmask.InitializeLogger()

	b, err := bitmask.InitializeBitmask()
	if err != nil {
		log.Println("error: cannot initialize bitmask")
	}
	ctx.bm = b
	ctx.cfg = config.ParseConfig()
}

func startVPN() {
	err := ctx.bm.StartVPN(ctx.Provider)
	if err != nil {
		log.Println(err)
		os.Exit(1)
	}
}

func stopVPN() {
	err := ctx.bm.StopVPN()
	if err != nil {
		log.Println(err)
	}
}

func wantDonations() bool {
	if config.AskForDonations == "true" {
		return true
	}
	return false
}

// initializeContext initializes an empty connStatus and assigns it to the
// global ctx holder. This is expected to be called only once, so the public
// api uses the sync.Once primitive to call this.
func initializeContext(provider, appName string) {
	var st status = off
	ctx = &connectionCtx{
		AppName:         appName,
		Provider:        provider,
		TosURL:          config.TosURL,
		HelpURL:         config.HelpURL,
		DonateURL:       config.DonateURL,
		AskForDonations: wantDonations(),
		DonateDialog:    false,
		Version:         version.VERSION,
		Status:          st,
	}
	go trigger(OnStatusChanged)
	initializeBitmask()
}