/***********************************************************************
 *            Project: CoreCms
 *        ProjectName: 核心内容管理系统                                
 *                Web: https://www.corecms.net                      
 *             Author: 大灰灰                                          
 *              Email: jianweie@163.com                                
 *         CreateTime: 2025/12/7
 *        Description: 站内信消息服务接口
 ***********************************************************************/

using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using System.Threading.Tasks;
using CoreCms.Net.Model.Entities;
using CoreCms.Net.Model.ViewModels.Basics;
using CoreCms.Net.Model.ViewModels.UI;
using SqlSugar;

namespace CoreCms.Net.IServices
{
    /// <summary>
    /// 站内信消息服务接口
    /// </summary>
    public interface ISQMessageServices : IBaseServices<SQMessage>
    {
        #region 前端API方法

        /// <summary>
        /// 获取用户消息列表（包含指定用户消息和全员广播）
        /// </summary>
        /// <param name="userId">用户ID</param>
        /// <param name="messageType">消息类型：0=全部，1=私信</param>
        /// <param name="pageIndex">页码</param>
        /// <param name="pageSize">每页数量</param>
        /// <returns>消息列表</returns>
        Task<List<SQMessageDto>> GetUserMessageListAsync(int userId, int messageType = 0, int pageIndex = 1, int pageSize = 20);

        /// <summary>
        /// 获取用户未读消息数量
        /// </summary>
        /// <param name="userId">用户ID</param>
        /// <returns>未读数量</returns>
        Task<int> GetUnreadCountAsync(int userId);

        /// <summary>
        /// 标记用户所有消息为已读
        /// </summary>
        /// <param name="userId">用户ID</param>
        /// <returns>是否成功</returns>
        Task<bool> MarkAllAsReadAsync(int userId);

        #endregion

        #region 后台管理方法

        /// <summary>
        /// 发送消息给指定用户
        /// </summary>
        /// <param name="userId">用户ID</param>
        /// <param name="title">标题</param>
        /// <param name="content">内容</param>
        /// <param name="messageType">消息类型</param>
        /// <param name="senderId">发送者ID</param>
        /// <returns>是否成功</returns>
        Task<bool> SendToUserAsync(int userId, string title, string content, int messageType = 1, int? senderId = null);

        /// <summary>
        /// 发送消息给多个用户
        /// </summary>
        /// <param name="userIds">用户ID列表</param>
        /// <param name="title">标题</param>
        /// <param name="content">内容</param>
        /// <param name="messageType">消息类型</param>
        /// <param name="senderId">发送者ID</param>
        /// <returns>是否成功</returns>
        Task<bool> SendToUsersAsync(List<int> userIds, string title, string content, int messageType = 1, int? senderId = null);

        /// <summary>
        /// 发送全员广播消息
        /// </summary>
        /// <param name="title">标题</param>
        /// <param name="content">内容</param>
        /// <param name="senderId">发送者ID</param>
        /// <returns>是否成功</returns>
        Task<bool> SendBroadcastAsync(string title, string content, int? senderId = null);

        /// <summary>
        /// 发送系统通知（用于业务触发，如组局成功/失败）
        /// </summary>
        /// <param name="userId">用户ID</param>
        /// <param name="title">标题</param>
        /// <param name="content">内容</param>
        /// <param name="relatedType">关联业务类型</param>
        /// <param name="relatedId">关联业务ID</param>
        /// <returns>是否成功</returns>
        Task<bool> SendSystemNoticeAsync(int userId, string title, string content, int? relatedType = null, int? relatedId = null);

        #endregion

        #region 重写增删改查操作

        /// <summary>
        /// 重写异步插入方法
        /// </summary>
        new Task<AdminUiCallBack> InsertAsync(SQMessage entity);

        /// <summary>
        /// 重写异步更新方法
        /// </summary>
        new Task<AdminUiCallBack> UpdateAsync(SQMessage entity);

        /// <summary>
        /// 重写删除指定ID的数据
        /// </summary>
        new Task<AdminUiCallBack> DeleteByIdAsync(object id);

        /// <summary>
        /// 重写删除指定ID集合的数据(批量删除)
        /// </summary>
        new Task<AdminUiCallBack> DeleteByIdsAsync(int[] ids);

        #endregion

        #region 重写根据条件查询分页数据

        /// <summary>
        /// 重写根据条件查询分页数据
        /// </summary>
        new Task<IPageList<SQMessage>> QueryPageAsync(
            Expression<Func<SQMessage, bool>> predicate,
            Expression<Func<SQMessage, object>> orderByExpression, OrderByType orderByType, int pageIndex = 1,
            int pageSize = 20, bool blUseNoLock = false);

        #endregion
    }

    /// <summary>
    /// 消息DTO（前端返回用）
    /// </summary>
    public class SQMessageDto
    {
        /// <summary>
        /// 消息ID
        /// </summary>
        public int id { get; set; }

        /// <summary>
        /// 消息标题
        /// </summary>
        public string title { get; set; }

        /// <summary>
        /// 消息内容
        /// </summary>
        public string content { get; set; }

        /// <summary>
        /// 创建时间
        /// </summary>
        public string createTime { get; set; }

        /// <summary>
        /// 消息类型：0=系统通知，1=私信
        /// </summary>
        public int messageType { get; set; }

        /// <summary>
        /// 是否已读
        /// </summary>
        public bool isRead { get; set; }
    }
}