using ReactiveUI;
using ReactiveUI.Validation.Extensions;
using System;
using System.IO;
using System.Reflection;
using VeloeMinecraftLauncher.MinecraftLauncher;
using Avalonia.Controls;

namespace VeloeMinecraftLauncher.ViewModels
{
    public class SettingsWindowViewModel : ViewModelBase
    {
        public SettingsWindowViewModel()
        {
            LauncherVersion = Assembly.GetExecutingAssembly().GetName().Version.ToString();

            var logger = Settings.logger;

            this.ValidationRule(
            viewModel => viewModel.MaxRam,
            value => { UInt32 result; bool resultb = UInt32.TryParse(value, out result); /*logger.Debug("Validator result: {0} {1}", value, resultb);*/ IsValid = resultb; return resultb; },
            "Not a number.");
        }

        private string launcherVersion;
        private string minecraftFolderPath = Settings.MinecraftForlderPath;
        private string javaPath = Settings.JavaPath;
        private string maxRam = Settings.MaxRam.ToString();
        private bool isValid;
        
        public bool UseCustomJava 
            { 
            get => Settings.useCustomJava; 
            set 
            {
                this.RaiseAndSetIfChanged(ref Settings.useCustomJava, value);
            } 
        }

        public bool SetMaxRam
        {
            get => Settings.setMaxRam;
            set
            {
                this.RaiseAndSetIfChanged(ref Settings.setMaxRam, value);
            }
        }

        public bool SetMinecraftFolder
        {
            get => Settings.setPath;
            set
            {
                this.RaiseAndSetIfChanged(ref Settings.setPath, value);
            }
        }

        public bool CheckAssets
        {
            get => Settings.checkGameAssets;
            set
            {
                this.RaiseAndSetIfChanged(ref Settings.checkGameAssets, value);
            }
        }

        public string JavaPath
        {
            get => javaPath;
            set
            {
                this.RaiseAndSetIfChanged(ref javaPath, value);
            }
        }

        public string MaxRam
        {
            get => maxRam.ToString();
            set
            {
                this.RaiseAndSetIfChanged(ref maxRam, value);              
            }
        }

        public bool IsValid
        {
            get => isValid;
            set => this.RaiseAndSetIfChanged(ref isValid, value);
        }

        public string MinecraftFolderPath
        {
            get => minecraftFolderPath;
            set
            {
                this.RaiseAndSetIfChanged(ref minecraftFolderPath, value);
            }
        }

        public string LauncherVersion
        {
            get => launcherVersion;
            set
            {
                this.RaiseAndSetIfChanged(ref launcherVersion, value);
            }
        }

        public bool GameLogToLauncher
        {
            get => Settings.gameLogToLauncher;
            set
            {
                this.RaiseAndSetIfChanged(ref Settings.gameLogToLauncher, value);
            }
        }

        public void SaveSettings()
        {
            Settings.JavaPath = javaPath;
            Settings.MinecraftForlderPath = minecraftFolderPath;
            Settings.MaxRam = UInt32.Parse(maxRam);
            Settings.SaveSettings();
        }

        public void OpenMinecraftPathDialog(Window window)
        {
            OpenFolderDialog dialog = new OpenFolderDialog();

            var initPath = String.Empty;

            if (Settings.MinecraftForlderPath is not null)
                if(Settings.MinecraftForlderPath != String.Empty)
                   initPath = Path.GetFullPath(Settings.MinecraftForlderPath);

            dialog.InitialDirectory = initPath;

            var result = dialog.ShowAsync(window).Result;
            if (result is null)
                return;

            if (result == String.Empty)
                return;

            MinecraftFolderPath = result;
        }

        public void OpenJavaPathDialog(Window window)
        {
            OpenFolderDialog dialog = new OpenFolderDialog();

            var initPath = String.Empty;

            if (Settings.JavaPath is not null)
                if (Settings.JavaPath != String.Empty)
                    initPath = Path.GetFullPath(Settings.JavaPath);

            dialog.InitialDirectory = initPath;

            var result = dialog.ShowAsync(window).Result;
            if (result is null)
                return;

            if (result == String.Empty)
                return;

            JavaPath = result;
        }
    }
    }