using System;
using System.Threading;
using System.Threading.Tasks;
using Avalonia.Controls;
using DispenserCommon.Aop;
using DispenserCommon.DB;
using DispenserCommon.Events;
using DispenserCommon.Ioc;
using DispenserCore.Service;
using DispenserHal.Camera.DTO;
using DispenserHal.Camera.Factory;
using DispenserUI.Utils;
using ReactiveUI;

namespace DispenserUI.ViewModels;

/// <summary>
///     启动页
/// </summary>
[Component, GlobalTry]
public class SplashVM : ViewModelBase
{
    // 这个值后续可以通过配置文件来读取
    private string _applicationName = "海炬固晶机HG50";

    private readonly CancellationTokenSource _cts = new();
    private string _startUpMessage = "系统初始化中...";


    private readonly CameraParamsService _cameraParamsService = new();


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

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

    public CancellationToken CancellationToken => _cts.Token;

    public void Cancel()
    {
        _cts.Cancel();
    }

    /// <summary>
    ///     监听系统初始化
    /// </summary>
    /// <param name="type"></param>
    /// <param name="message"></param>
    [EventAction(EventType.SetupNotify)]
    public void SetupCallBack(EventType type, string message)
    {
        StartUpMessage = message;
    }

    /// <summary>
    ///     这里进行系统初始化操作
    ///     这里的异常需要抛出到上层
    /// </summary>
    public async Task Init(Window window)
    {
        var initTask = DoInit();

        if (await Task.WhenAny(initTask, Task.Delay(100000, CancellationToken)) == initTask)
        {
            var res = await initTask;

            if (!res)
            {
                await ConfirmDialog.ToConfirm("系统初始化失败!");
                Environment.Exit(1);
            }

            StartUpMessage = "系统初始化完成，正在进入系统！";

            await Task.Delay(500, CancellationToken);
        }
        else
        {
            // 启动超时，弹出弹出，确认后关闭程序
            StartUpMessage = "系统初始化超时，请检查网络连接！";
            var confirm = await ConfirmDialog.ToConfirm("系统初始化超时，请检查配置后重试!");
            if (confirm) Environment.Exit(1);
        }
    }

    /// <summary>
    ///     执行初始化
    /// </summary>
    /// <returns></returns>
    private Task<bool> DoInit()
    {
        return Task.Run(() =>
        {
            try
            {
                // 进行数据库初始化校验
                DatabaseInitializer.Initialize();
                Thread.Sleep(300);

                // 初始化相机连接
                InitCameraParams();
                CameraManager.Connect();
                Thread.Sleep(300);

                return Task.FromResult(true);
            }
            catch (Exception e)
            {
                Console.WriteLine($"系统初始化异常: {e}");
                return Task.FromResult(false);
            }
        }, CancellationToken);
    }

    /// <summary>
    /// 初始化相机参数
    /// </summary>
    private void InitCameraParams()
    {
        var cameraParams = _cameraParamsService.GetCameraParams();
        if (cameraParams == null) return;
        CameraConfig.Dll = cameraParams.Dll;
        CameraConfig.Sdk = cameraParams.Sdk;
        CameraConfig.CameraSn = cameraParams.CameraSn;
        CameraConfig.ScaleRatio = cameraParams.ScaleRatio;
    }
}