Sheas-Cealer/Convs/MainContentBoxTextConv.cs

using System;
using System.Diagnostics;
using System.Windows.Data;
using Sheas_Cealer.Consts;

namespace Sheas_Cealer.Convs
{
    internal class MainContentBoxTextConv : IMultiValueConverter
    {
        private static readonly MainConst MainConst = new();

        public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            MainConst.Mode? mode = values[0] as MainConst.Mode?;
            bool? isFocused = values[1] as bool?;
            string? browserPath = values[2] as string;
            string? upstreamUrl = values[3] as string;
            string? extraArgs = values[4] as string;

            if (mode == MainConst.Mode.browserPathMode)
            {
                if ((bool)!isFocused! && string.IsNullOrEmpty(browserPath))
                    return MainConst.BrowserPathPlaceHolder;
                else if ((bool)isFocused! && browserPath == MainConst.BrowserPathPlaceHolder)
                    return string.Empty;
                else
                    return browserPath!;
            }
            else if (mode == MainConst.Mode.upstreamUrlMode)
            {
                if ((bool)!isFocused! && string.IsNullOrEmpty(upstreamUrl))
                    return MainConst.UpstreamUrlPlaceHolder;
                else if ((bool)isFocused! && upstreamUrl == MainConst.UpstreamUrlPlaceHolder)
                    return string.Empty;
                else
                    return upstreamUrl!;
            }
            else if (mode == MainConst.Mode.extraArgsMode)
            {
                if ((bool)!isFocused! && string.IsNullOrEmpty(extraArgs))
                    return MainConst.ExtraArgsPlaceHolder;
                else if ((bool)isFocused! && extraArgs == MainConst.ExtraArgsPlaceHolder)
                    return string.Empty;
                else
                    return extraArgs!;
            }
            else
            {
                throw new UnreachableException();
            }
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}