using Avalonia.Data.Converters;
using Cowain.Base.Helpers;
using Ke.Bee.Localization.Localizer.Abstractions;
using System.Globalization;

namespace Cowain.Base.Converters;

/// <summary>
/// 枚举值本地化转换器
/// </summary>
public class I18nLocalizeConverter : IValueConverter
{
    private readonly ILocalizer _l;
    public I18nLocalizeConverter()
    {
        _l = ServiceLocator.GetRequiredService<ILocalizer>();
    }

    /// <summary>
    /// 字符串转换为本地化文本
    /// </summary>
    /// <param name="value">枚举值</param>
    /// <param name="targetType"></param>
    /// <param name="prefix">对应的本地化前缀</param>
    /// <param name="culture"></param>
    /// <returns></returns>
    public object? Convert(object? value, Type targetType, object? prefix, CultureInfo culture)
    {
        if (value == null)
            return "未配置";
        var key = $"{prefix}.{value}";
        var result = _l[key];
        // 如果本地化内容为空或与 key 相同，则返回原始 value 字符串
        if (string.IsNullOrEmpty(result) || result == key)
            return value.ToString();
        return result;
    }

    public object? ConvertBack(object? value, Type targetType, object? prefix, CultureInfo culture)
    {
        return null;
    }
}