using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Song.Entities;
using Song.ServiceInterfaces;
using Song.ViewData.Attri;
using WeiSha.Core;
using System.Data;



namespace Song.ViewData.Methods
{
 /// <summary>
 /// 课程学习中的咨询留言,可作为弹幕
 /// </summary>
 [HttpPut, HttpGet,HttpPost]
 public class Message : ViewMethod, IViewAPI
 {
 /// <summary>
 /// 添加留言
 /// </summary>
 /// <param name="acc">学员账号,如果账号为空则默认为当前登录账号</param>
 /// <param name="msg">留言信息</param>
 /// <param name="playtime">视频播放时间</param>
 /// <param name="couid">课程id</param>
 /// <param name="olid">章节id</param>
 /// <returns></returns>
 public Song.Entities.Message Add(string acc,string msg, int playtime, long couid, long olid)
 {
 Song.Entities.Accounts account = null;
 if (!string.IsNullOrWhiteSpace(acc))
 {
 account = Business.Do<IAccounts>().AccountsSingle(acc, -1); 
 }
 else
 {
 account = LoginAccount.Status.User();
 }
 if (account == null) throw new Exception("当前账号不存在");
 Song.Entities.Message entity = new Entities.Message();
 entity.Msg_Context = msg.Length > 200 ? msg.Substring(0, 200) : msg;
 entity.Msg_PlayTime = playtime;
 if (couid <= 0)
 {
 Song.Entities.Outline outline = Business.Do<IOutline>().OutlineSingle(olid);
 if (outline != null) couid = outline.Cou_ID;
 }
 entity.Cou_ID = couid;
 entity.Ol_ID = olid;
 entity.Ac_ID = account.Ac_ID;
 entity.Ac_AccName = account.Ac_AccName;
 entity.Ac_Name = account.Ac_Name;
 entity.Msg_Phone = string.IsNullOrWhiteSpace(account.Ac_MobiTel1) ? account.Ac_MobiTel2 : account.Ac_MobiTel1;
 entity.Msg_QQ = account.Ac_Qq;
 entity.Ac_Photo = account.Ac_Photo;
 entity.Msg_IP = WeiSha.Core.Browser.IP;

 Business.Do<IMessage>().Add(entity);
 return entity;
 }
 /// <summary>
 /// 获取章节的所有留言
 /// </summary>
 /// <param name="olid">章节id</param>
 /// <param name="order">排序方式,desc或asc</param>
 /// <returns></returns>
 public Song.Entities.Message[] All(long olid, string order)
 {
 return Business.Do<IMessage>().GetAll(olid, order);
 }
 /// <summary>
 /// 获取指定数量的留言
 /// </summary>
 /// <param name="olid">章节id</param>
 /// <param name="order">排序方式,desc或asc</param>
 /// <param name="count">取多少条</param>
 /// <returns></returns>
 [HttpPost]
 public Song.Entities.Message[] Count(long olid, string order,int count)
 {
 return Business.Do<IMessage>().GetCount(-1, olid, order, count);
 }
 /// <summary>
 /// 获取留言数量
 /// </summary>
 /// <param name="couid">课程id</param>
 /// <param name="olid">章节id</param>
 /// <returns></returns>
 [HttpPost]
 public int Count(long couid, long olid)
 {
 return Business.Do<IMessage>().GetOfCount(couid, olid);
 }
 /// <summary>
 /// 分页获取留言信息
 /// </summary>
 /// <param name="couid">课程id</param>
 /// <param name="olid">章节id</param>
 /// <param name="search">检索</param>
 /// <param name="size">当页多条记录</param>
 /// <param name="index">第几页</param>
 /// <returns></returns>
 public ListResult Pager(int orgid,long couid, long olid, string search, int size, int index)
 {
 int count = 0;
 Song.Entities.Message[] eas = null;
 eas = Business.Do<IMessage>().GetPager(orgid, couid, olid, -1, search, null, null, size, index, out count);
 ListResult result = new ListResult(eas);
 result.Index = index;
 result.Size = size;
 result.Total = count;
 return result;
 }
 /// <summary>
 /// 删除
 /// </summary>
 /// <param name="msid">留言id</param>
 [Student, Admin, Teacher]
 [HttpDelete]
 public bool Delete(int msid)
 {

 try
 {
 int row=Business.Do<IMessage>().Delete(msid);
 return row > 0;
 }
 catch (Exception exp)
 {
 throw exp;
 }
 }
 /// <summary>
 /// 批量删除
 /// </summary>
 /// <param name="id"></param>
 /// <returns></returns>
 [Admin, Teacher]
 [HttpDelete]
 public int DeleteBatch(string id)
 {
 int i = 0;
 if (string.IsNullOrWhiteSpace(id)) return i;
 string[] arr = id.Split(',');
 foreach (string s in arr)
 {
 int idval = 0;
 int.TryParse(s, out idval);
 if (idval == 0) continue;
 try
 {
 Business.Do<IMessage>().Delete(idval);
 i++;
 }
 catch (Exception ex)
 {
 throw ex;
 }
 }
 return i;
 }
 /// <summary>
 /// 更新留言内容
 /// </summary>
 /// <param name="msid">留言id</param>
 /// <param name="msg">留言内容</param>
 /// <returns></returns>
 public bool Update(int msid,string msg)
 {
 Song.Entities.Message mm = Business.Do<IMessage>().GetSingle(msid);
 if (mm == null) throw new Exception("Not found entity for Message!");
 mm.Msg_Context = msg; 
 try
 {
 Business.Do<IMessage>().Save(mm);
 return true;
 }
 catch (Exception exp)
 {
 throw exp;
 }
 }
 /// <summary>
 /// 修改留言对象
 /// </summary>
 /// <param name="entity"></param>
 /// <returns></returns>
 [Admin, Teacher]
 [HttpPost]
 public bool Modify(Song.Entities.Message entity)
 {
 Song.Entities.Message old = Business.Do<IMessage>().GetSingle(entity.Msg_Id);
 if (old == null) throw new Exception("Not found entity for Message!");

 old.Copy<Song.Entities.Message>(entity);

 Business.Do<IMessage>().Save(old);
 return true;
 }
 }
}