using System.Globalization;

namespace MareSynchronos.Localization;

public static class LocalizationExtensions
{
    public static string Loc(this string fallbackEnglish, params object[] formatArgs)
    {
        var service = LocalizationService.Instance;
        if (service == null) return FormatFallback(fallbackEnglish, formatArgs);
        return service.GetString(fallbackEnglish, formatArgs);
    }

    public static string LocKey(this string key, string fallbackEnglish, params object[] formatArgs)
    {
        var service = LocalizationService.Instance;
        if (service == null) return FormatFallback(fallbackEnglish, formatArgs);
        return service.GetString(key, fallbackEnglish, formatArgs);
    }

    public static string LocLabel(this string labelWithId, params object[] formatArgs)
    {
        if (string.IsNullOrEmpty(labelWithId)) return labelWithId;

        var separatorIndex = labelWithId.IndexOf("##", StringComparison.Ordinal);
        if (separatorIndex < 0)
        {
            return labelWithId.Loc(formatArgs);
        }

        var label = labelWithId[..separatorIndex];
        var id = labelWithId[separatorIndex..];
        return string.Concat(label.Loc(formatArgs), id);
    }

    private static string FormatFallback(string fallback, params object[] args)
    {
        if (args == null || args.Length == 0) return fallback;
        try
        {
            return string.Format(CultureInfo.CurrentCulture, fallback, args);
        }
        catch
        {
            return fallback;
        }
    }
}