using System.Threading;
using AIK.Common.Enum;
using AIK.Common.IconString;
using AIK.Common.Interface;
using AIK.Service.IService;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using Microsoft.Extensions.DependencyInjection;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AIK.Views.UIViewModels
{
    public partial class QRCodeMessageViewModel : ObservableObject
    {
        private readonly CancellationTokenSource _cts = new();

        public CancellationToken CancellationToken => _cts.Token;
        [ObservableProperty]
        private string _title = "请稍候";

        [ObservableProperty]
        private string _message = "处理中...";

        [ObservableProperty]
        private MessageTypeEnum _messageType;

        [ObservableProperty]
        private string _iconPath = "\ue601";

        [ObservableProperty]
        private string _iconForeground = "white";

        [ObservableProperty]
        private bool _isCancelButtonVisible = true;

        private readonly IConfigurationService _configurationService;
        private readonly IQRCodeService _qrCodeService;
        [ObservableProperty]
        private byte[]? _qrCodeBytes; // 👈 只暴露字节数组

        //国内版
        private string defaultLogoPath = "AIK.Assets.Images.AIKChina.png";

        public QRCodeMessageViewModel(IConfigurationService configurationService, IQRCodeService qRCodeService)
        {
            _configurationService = configurationService;
            _qrCodeService = qRCodeService;
        }

        public static QRCodeMessageViewModel Create(
            IServiceProvider serviceProvider,
        string title = "请稍候",
        string message = "处理中...",
        MessageTypeEnum typeEnum = MessageTypeEnum.Info,
        bool showCancel = true)
        {
            var viewModel = ActivatorUtilities.CreateInstance<QRCodeMessageViewModel>(serviceProvider);
            // 2. 设置业务参数
            viewModel.Title = title;
            viewModel.Message = message;
            viewModel.IsCancelButtonVisible = showCancel;
            viewModel.MessageType = typeEnum;

            // 3. 根据类型设置图标和颜色
            var (icon, color) = Common.IconString.MessageStyle.GetByType(typeEnum);
            viewModel.IconPath = icon;
            viewModel.IconForeground = color;

            // 4. 根据编译指令设置 Logo 路径
#if CN
            viewModel.defaultLogoPath = "AIK.Assets.Images.AIKChina.png";
#elif TEST
            viewModel.defaultLogoPath = "AIK.Assets.Images.AIKChina.png";
#else
            viewModel.defaultLogoPath = "AIK.Assets.Images.AIKInternationl.png";
#endif

            // 5. 加载二维码
            viewModel.LoadQrCodeImage();

            return viewModel;
        }
        private void LoadQrCodeImage()
        {
            QrCodeBytes = _qrCodeService.GenerateQRCodeWithLogo(_configurationService.ApiSettings.QRCodeUrl, defaultLogoPath, 12);
        }

        [RelayCommand]
        private void Cancel()
        {
            _cts.Cancel();
        }
    }
}