package ui

import (
	"fmt"
	"os"
)

type Options struct {
	Name    string
	Version string
	OnClose func()
}

type GUIApp interface {
	Run(exitCh chan os.Signal) int
	Close()
}

func (o *Options) Validate() error {
	if len(o.Version) == 0 {
		return fmt.Errorf("version is required")
	}

	if o.OnClose == nil {
		return fmt.Errorf("missing onClose function")
	}

	return nil
}

type Option func(*Options)

func Version(v string) Option {
	return func(o *Options) {
		o.Version = v
	}
}
func Name(n string) Option {
	return func(o *Options) {
		o.Name = n
	}
}

// OnClose 关闭窗口事件
func OnClose(f func()) Option {
	return func(o *Options) {
		o.OnClose = f
	}
}