package constant

import "strings"

const (
	LangeZh   = "zh"
	LangeEn   = "en"
	LangeZhHk = "zhHK"
)

const (
	HeaderKeyLanguage = "Language" // 兼容
	HeaderKeyLang     = "lang"
)

type Language struct {
	Name    string
	Chinese string
	English string
}

var languageMap = map[string]Language{
	"zh":   {"简体中文", "简体中文", "Simplified Chinese"},
	"en":   {"English", "英文", "English"},
	"zhHK": {"繁体中文", "繁体", "Traditional Chinese"},
	"ms":   {"Bahasa Melayu", "马来西亚语", "Malay"},
	"id":   {"Bahasa Indonesia", "印尼语", "Indonesian"},
	"vi":   {"Tiếng Việt", "越南语", "Vietnamese"},
	"ja":   {"日本語", "日语", "Japanese"},
	"ko":   {"한국어", "韩语", "Korean"},
	"th":   {"ภาษาไทย", "泰语", "Thai"},
	"hi":   {"हिन्दी", "印地语", "Hindi"},
}

// 语种兼容

func LangCompatibility(lang string) string {
	lang = strings.ToLower(lang)
	// 多语言兼容
	switch lang {
	case "cn":
		lang = LangeZh
	case "zh":
		lang = LangeZh
	case "zh-cn":
		lang = LangeZh
	case "zhhk":
		lang = LangeZhHk
	case "zh-hk":
		lang = LangeZhHk
	case "zh-hant":
		lang = LangeZhHk
	}
	_, ok := languageMap[lang]
	if ok {
		return lang
	}
	return LangeEn
}