//
//  Localization.swift
//  MioIsland AirDrop Plugin
//
//  zh/en string map. Host's `appLanguage` UserDefault is the source
//  of truth, with "auto" falling back to system locale.
//

import Foundation

enum L10n {
    static var isChinese: Bool {
        let setting = UserDefaults.standard.string(forKey: "appLanguage") ?? "auto"
        switch setting {
        case "zh": return true
        case "en": return false
        default:
            if let code = Locale.current.language.languageCode?.identifier,
               code.hasPrefix("zh") {
                return true
            }
            if let pref = Locale.preferredLanguages.first,
               pref.hasPrefix("zh") {
                return true
            }
            return false
        }
    }

    // MARK: - Title / primary CTA

    static var title: String {
        isChinese ? "隔空投送" : "AirDrop"
    }

    static var chooseFiles: String {
        isChinese ? "选择文件" : "Choose files"
    }

    static var clickToChoose: String {
        isChinese ? "点击选择要发送的文件" : "Tap to pick files to send"
    }

    static var choose: String {
        isChinese ? "选择" : "Choose"
    }

    static var chooseFilesTitle: String {
        isChinese ? "选择要通过隔空投送发送的文件" : "Choose files to AirDrop"
    }

    // MARK: - Status

    static var opening: String {
        isChinese ? "正在打开隔空投送…" : "Opening AirDrop…"
    }

    static func sentCount(_ n: Int) -> String {
        isChinese ? "✓ 已发送 \(n) 个文件" : "✓ Sent \(n) file\(n == 1 ? "" : "s")"
    }

    // MARK: - Errors

    static var errServiceUnavailable: String {
        isChinese
            ? "隔空投送服务不可用(系统可能未开启)"
            : "AirDrop service unavailable (check System Settings)"
    }

    static var errCannotPerform: String {
        isChinese
            ? "这些文件无法通过隔空投送发送"
            : "These files cannot be sent via AirDrop"
    }

    // MARK: - Host upgrade hint

    static var hostUpgradeTitle: String {
        isChinese ? "需要 Mio Island v2.2.0+" : "Mio Island v2.2.0+ required"
    }

    static var hostUpgradeHint: String {
        isChinese
            ? "请升级主 app 以启用本插件"
            : "Please upgrade Mio Island to unlock this plugin"
    }
}