package kr.co.vividnext.sodalive.i18n

import com.fasterxml.jackson.annotation.JsonCreator
import java.util.Locale

enum class Lang(val code: String, val locale: Locale) {
    KO("ko", Locale.KOREAN),
    EN("en", Locale.ENGLISH),
    JA("ja", Locale.JAPANESE);

    companion object {
        @JvmStatic
        @JsonCreator(mode = JsonCreator.Mode.DELEGATING)
        fun fromCode(value: String): Lang {
            return values().find {
                it.code.equals(value.trim(), ignoreCase = true) || it.name.equals(value.trim(), ignoreCase = true)
            } ?: throw IllegalArgumentException("Unknown language code: $value")
        }

        fun fromAcceptLanguage(header: String?): Lang {
            if (header.isNullOrBlank()) return KO
            val two = header.trim().lowercase().take(2) // 앱은 2자리만 보내지만 안전하게 처리
            return when (two) {
                "ko" -> KO
                "en" -> EN
                "ja" -> JA
                else -> KO
            }
        }
    }
}