import Foundation
import SwiftUI

/// Schlüssel wie Android `strings.xml` – Auflösung über `Localizable.strings` (de/en).
enum L10n {
    static func tr(_ key: String) -> String {
        String(localized: String.LocalizationValue(key))
    }

    static func timeoutIn(_ time: String) -> String {
        String(format: tr("timeout_in"), time)
    }

    static func inboxNew(_ count: Int) -> String {
        String(format: tr("inbox_new_count"), locale: .current, count)
    }

    static func feedbackCreatedAt(_ date: String) -> String {
        String(format: tr("feedback_created_at"), locale: .current, date)
    }

    static func countriesLoadError(_ detail: String) -> String {
        String(format: tr("countries_load_error"), locale: .current, detail)
    }

    static func userBlocked(_ name: String) -> String {
        String(format: tr("user_blocked"), locale: .current, name)
    }

    static func userUnblocked(_ name: String) -> String {
        String(format: tr("user_unblocked"), locale: .current, name)
    }
}

func formatTimeout(totalSeconds: Int) -> String {
    let minutes = totalSeconds / 60
    let seconds = totalSeconds % 60
    return String(format: "%d:%02d", minutes, seconds)
}

func localizeRuntimeMessage(_ message: String) -> String {
    if message.hasPrefix("Country list could not be loaded:") {
        let detail = String(message.dropFirst("Country list could not be loaded:".count)).trimmingCharacters(in: .whitespacesAndNewlines)
        return L10n.countriesLoadError(detail)
    }
    switch message {
    case "Image uploaded": return L10n.tr("image_upload_success")
    case "Image upload failed": return L10n.tr("image_upload_failed")
    case "Image exceeds 5 MB": return L10n.tr("image_upload_too_large")
    case "Image could not be opened": return L10n.tr("image_upload_open_failed")
    case "Feedback saved": return L10n.tr("feedback_saved")
    default:
        break
    }
    if message.hasSuffix(" blocked") {
        let name = String(message.dropLast(" blocked".count))
        return L10n.userBlocked(name)
    }
    if message.hasSuffix(" unblocked") {
        let name = String(message.dropLast(" unblocked".count))
        return L10n.userUnblocked(name)
    }
    return message
}

func formatFeedbackTimestamp(_ createdAt: String) -> String? {
    guard !createdAt.isEmpty else { return nil }
    return ISO8601DateFormatter().date(from: createdAt).map {
        DateFormatter.localizedString(from: $0, dateStyle: .medium, timeStyle: .short)
    }
}

func smileyEmoji(hexCode: String) -> String {
    guard let v = UInt32(hexCode, radix: 16), let scalar = UnicodeScalar(v) else { return "" }
    return String(Character(scalar))
}

struct SmileyItem: Identifiable {
    var id: String { token }
    let token: String
    let hexCode: String
}

let ypChatSmileys: [SmileyItem] = [
    SmileyItem(token: ":)", hexCode: "1F642"),
    SmileyItem(token: ":D", hexCode: "1F600"),
    SmileyItem(token: ":(", hexCode: "1F641"),
    SmileyItem(token: ";)", hexCode: "1F609"),
    SmileyItem(token: ":p", hexCode: "1F60B"),
    SmileyItem(token: ";p", hexCode: "1F61C"),
    SmileyItem(token: "O)", hexCode: "1F607"),
    SmileyItem(token: ":*", hexCode: "1F617"),
    SmileyItem(token: "(h)", hexCode: "1FA77"),
    SmileyItem(token: "xD", hexCode: "1F602"),
    SmileyItem(token: ":@", hexCode: "1F635"),
    SmileyItem(token: ":O", hexCode: "1F632"),
    SmileyItem(token: ":3", hexCode: "1F63A"),
    SmileyItem(token: ":|", hexCode: "1F610"),
    SmileyItem(token: ":/", hexCode: "1FAE4"),
    SmileyItem(token: ":#", hexCode: "1F912"),
    SmileyItem(token: "#)", hexCode: "1F973"),
    SmileyItem(token: "%)", hexCode: "1F974"),
    SmileyItem(token: "(t)", hexCode: "1F44D"),
    SmileyItem(token: ":'(", hexCode: "1F622"),
]

struct GenderOptionRow: Identifiable {
    var id: String { value }
    let value: String
    let label: String
}

func displayCountryName(user: UserDto, countries: [CountryOption]) -> String {
    if let byEnglish = countries.first(where: { $0.englishName == user.country }) {
        return byEnglish.displayName
    }
    if let byIso = countries.first(where: { $0.isoCode.caseInsensitiveCompare(user.isoCountryCode) == .orderedSame }) {
        return byIso.displayName
    }
    return user.country
}