using System.Collections.ObjectModel;
using System.Globalization;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Messaging;
using Livia.Models;
using Livia.Models.Data;
using Livia.Properties;
using Livia.Utility;
using Livia.Views.Utility;
using Microsoft.Extensions.Logging;

namespace Livia.ViewModels;

public class LanguageComboBoxItemViewModel(string displayName, string id, string defaultFont) : ObservableObject
{
    public string Id { get; } = id;
    public string DefaultFont { get; set; } = defaultFont;
    public string DisplayName { get; } = displayName;

    public override string ToString()
    {
        return DisplayName;
    }
}

public class SettingsWindowViewModel : ObservableObject
{
    public IVersionUpdateManager VersionUpdateManager { get; }
    public IServerHandler ServerHandler { get; }
    public static bool LanguageSelectionEnabled { get; set; }
    public static bool DisplaySettingsCardEnabled { get; set; } = true;
    public static bool SecurityTabEnabled { get; set; } = true;
    public static bool GeneralTabEnabled { get; set; } = true;
    public static bool ShowExportReportSettings { get; set; } = true;
    public ObservableCollection<LanguageComboBoxItemViewModel> Languages { get; } = [];
    public ObservableCollection<string> UpdateChannels { get; }
    public ObservableCollection<CultureInfo> CultureInfoCollection { get; } = [];
    public bool ReadyToInstallUpdate { get => _readyToInstallUpdate; set => SetProperty(ref _readyToInstallUpdate, value); }
    public bool ReadyToCheckForUpdate { get => _readyToCheckForUpdate; set => SetProperty(ref _readyToCheckForUpdate, value); }
    public string DicomNodeHost { get => _dicomNodeHost; private set => SetProperty(ref _dicomNodeHost, value); }
    public string DicomNodePort { get => _dicomNodePort; private set => SetProperty(ref _dicomNodePort, value); }
    public string DicomNodeAet { get => _dicomNodeAet; private set => SetProperty(ref _dicomNodeAet, value); }

    private bool _readyToCheckForUpdate = true;
    private bool _readyToInstallUpdate = true;
    private string _dicomNodeHost = string.Empty;
    private string _dicomNodePort = string.Empty;
    private string _dicomNodeAet = string.Empty;

    private readonly IWarningSystem _warningSystem;
    private readonly IServerHandler _serverHandler;
    private readonly ILogger _logger;

    public SettingsWindowViewModel(ILogger logger, IVersionUpdateManager versionUpdateManager, IServerHandler serverHandler, IWarningSystem warningSystem)
    {
        _logger = logger;
        VersionUpdateManager = versionUpdateManager;
        _serverHandler = serverHandler;
        ServerHandler = serverHandler;
        _warningSystem = warningSystem;

        //manually set selected font index because somehow it is not initialized 
        foreach (LanguageComboBoxItemViewModel viewModel in ViewUtility.LanguageList)
        {
            Languages.Add(viewModel);
        }

        UpdateChannels = new ObservableCollection<string> { "stable", "beta" };

        CultureInfoCollection.AddRange(CultureInfo.GetCultures(CultureTypes.AllCultures));

        Task.Run(UpdateDicomNodeInfo);
    }

    private async void UpdateDicomNodeInfo()
    {
        if (!Settings.Default.ShowDicomNodeTab)
            return;

        DicomNodeInfo? info = await _serverHandler.GetDicomNodeInfo();
        if (info == null)
            return;

        DicomNodeHost = info.Value.Host;
        DicomNodePort = info.Value.Port.ToString();
        DicomNodeAet = info.Value.Aet;
    }

    public async Task CheckUpdate()
    {
        _logger.LogInformation("Checking for update");
        ReadyToCheckForUpdate = false;
        await Task.Run(() => VersionUpdateManager.CheckForUpdate(true)).ConfigureAwait(false);
        ReadyToCheckForUpdate = true;
    }

    public async Task InstallUpdate()
    {
        ReadyToInstallUpdate = false;
        await Task.Run(() => VersionUpdateManager.UpdateApp()).ConfigureAwait(false);
        ReadyToInstallUpdate = true;
    }

    public async Task<bool> EditPassword(string oldPassword, string newPassword, string confirmPassword)
    {
        if (newPassword != confirmPassword)
        {
            _warningSystem.ShowDialog(WarningWindowKind.Warning, false, "ConfirmPasswordFailedError");
            return false;
        }

        (bool success, string messageIndex) = await _serverHandler.EditPassword(oldPassword, newPassword).ConfigureAwait(false);
        if (success)
        {
            _warningSystem.ShowDialog(WarningWindowKind.Info, false, messageIndex);
            WeakReferenceMessenger.Default.Send(new LogoutMessage());
            _logger.LogInformation("Password changed");
            return true;
        }

        _warningSystem.ShowDialog(WarningWindowKind.Warning, false, messageIndex);
        return false;
    }
}