using Prism.Mvvm;
using Prism.Regions;
using Prism.Services.Dialogs;
using SKMC.Api.Client.Access;
using SKMC.Api.Client.Model;
using SKMC.Api.Client.UI;
using SKMC.Api.Client.Views;
using SKMC.Api.Common.Exceptions;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;

namespace SKMC.Api.Client
{
    /// <summary>
    /// 客户端缓存器
    /// </summary>
    public abstract class ClientCacher : BindableBase
    {
        /// <summary>
        /// UI的区域管理器
        /// </summary>
        public IRegionManager RegionManager { get; set; }

        /// <summary>
        /// UI的对话框管理器
        /// </summary>
        public IDialogService DialogService { get; set; }

        /// <summary>
        /// 角色权限访问接口
        /// </summary>
        public IClientRoleAccesser ClientRoleAccesser { get; set; }

        /// <summary>
        /// 异常窗口的抽象视图模型
        /// </summary>
        public ExceptionViewModel ExceptionsViewModel { get; set; }

        /// <summary>
        /// 当前登录角色
        /// </summary>
        public string CurrentRole { get; set; }

        /// <summary>
        /// 当前选择的分类
        /// </summary>
        public string CurrentCatalog { get; set; }

        /// <summary>
        /// 分类更改事件
        /// </summary>
        public event Action<string> CatalogChanged;

        /// <summary>
        /// 分类更改动作
        /// </summary>
        /// <param name="catalog"></param>
        public void CatalogChange(string catalog)
        {
            CurrentCatalog = catalog;
            CatalogChanged?.Invoke(catalog);
        }

        /// <summary>
        /// 客户端消息集
        /// </summary>
        public ObservableCollection<ClientMessage> ClientMessages { get; set; } = new ObservableCollection<ClientMessage>();

        /// <summary>
        /// 当前未处理的异常
        /// </summary>
        public ObservableCollection<ExceptionShow> CurrentExceptions { get; set; } = new ObservableCollection<ExceptionShow>();

        /// <summary>
        /// 历史异常记录
        /// </summary>
        public ObservableCollection<ExceptionShow> HistoryExceptions { get; set; } = new ObservableCollection<ExceptionShow>();

        /// <summary>
        /// 已弹窗的提醒对话框
        /// </summary>
        public List<IShowDialog> ShowCommonDialogs = new List<IShowDialog>();

        /// <summary>
        /// 已弹窗的异常对话框
        /// </summary>
        public List<IShowDialog> ShowExceptionDialogs = new List<IShowDialog>();

        /// <summary>
        /// 界面跳转
        /// </summary>
        /// <param name="view"></param>
        public abstract void Forward(string view);

        /// <summary>
        /// 弹出通用的对话框
        /// </summary>
        /// <param name="viewName">UI的view层显示名称</param>
        /// <param name="parms">参数表</param>
        /// <param name="callback">回调函数</param>
        /// <param name="blocked">是否阻塞控制流程</param>
        public abstract string ShowCommonDialog(string viewName, DialogParameters parms, Action<IDialogResult> callback, bool blocked = true);

        /// <summary>
        /// 弹出异常对话框
        /// </summary>
        /// <param name="viewName">UI的view层显示名称</param>
        /// <param name="exception">异常对象</param>
        /// <param name="blocked">是否阻塞控制流程</param>
        public abstract string ShowExceptionDialog(string viewName, ExceptionShow exception, bool blocked = true);

        /// <summary>
        /// 查询弹窗是否显示
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public abstract bool IsDialogShow(string id);

        /// <summary>
        /// 关闭指定id的对话框(通知或异常)
        /// </summary>
        /// <param name="id"></param>
        public abstract void CloseDialog(string id);

        /// <summary>
        /// 关闭所有已弹出的对话框(通知或异常)
        /// </summary>
        public abstract void CloseAllDialogs();

        /// <summary>
        /// 清除当前异常 (转移到历史异常中)
        /// </summary>
        public void ClearExceptions()
        {
            HistoryExceptions.AddRange(CurrentExceptions);
            CurrentExceptions.Clear();
        }

    }
}