/// <summary>
/// 用户购买礼物 赠送主播
/// </summary>
/// <returns></returns>
public Result <long> Cost(int userId, int roomId, int giftId)
{
var result = new Result <long>();
#region check params
if (userId <= 0)
{
result.Msg = "用户ID无效";
return(result);
}
if (roomId <= 0)
{
result.Msg = "直播房间号无效";
return(result);
}
if (giftId <= 0)
{
result.Msg = "礼物信息无效";
return(result);
}
#endregion
#region 数据验证
var giftList = _giftService.GetGiftList();
if (giftList == null || !giftList.Any())
{
result.Msg = "礼物配置信息无效";
return(result);
}
var gift = giftList.FirstOrDefault(m => m.id == giftId);
if (gift == null)
{
result.Msg = "赠送的礼物无效";
return(result);
}
//扣除用户的金币
var userAccount = this.CurrentRepository.Get(m => m.UserId == userId).FirstOrDefault();
if (userAccount == null)
{
result.Msg = "用户信息无效";
return(result);
}
if (userAccount.Gold <= 0)
{
result.Msg = "金币数量不足";
return(result);
}
var roomInfo = this._roomService.Get(m => m.ID == roomId && m.Status != (int)UserBaseStausEnum.Normal).FirstOrDefault();
if (roomInfo == null)
{
result.Msg = "当前直播间无效";
return(result);
}
if (roomInfo.UserId == userId)
{
result.Msg = "不可以给自己送礼物";
return(result);
}
var liveAccount = this.CurrentRepository.Get(m => m.UserId == roomInfo.UserId).FirstOrDefault();
if (liveAccount == null)
{
result.Msg = "主播信息无效";
return(result);
}
#endregion
var now = DateTime.Now;
var giving = gift.gold;
#region 用户账户变动信息
//用户账户变动
var goldByUser = userAccount.Gold;
userAccount.Gold -= giving;
userAccount.Contribution += giving;
userAccount.UpdateTime = now;
var result1 = this.CurrentRepository.Update(userAccount);
if (result1 <= 0)
{
result.Msg = $"用户送出礼物给主播[{liveAccount.UserId}]，扣除金币失败";
return(result);
}
//金币变动记录
var result2 = this._goldRecordService.Add(new GoldRecord()
{
UserId = userId,
ChangeType = (int)GoldChangeTypeEnum.Reduce,
GoldBefore = goldByUser,
GoldAfter = userAccount.Gold,
Remark = $"用户送出礼物给主播[{liveAccount.UserId}]，减少金币[{giving}]",
InsertTime = now,
UpdateTime = now
});
if (result2.Code == ResultEnum.Error || result2.Data.ID <= 0)
{
result.Msg = $"用户送出礼物给主播[{liveAccount.UserId}],增加金币变动记录失败";
return(result);
}
#endregion
#region 主播账户变动信息
//用户账户变动
var integral = liveAccount.Integral;
liveAccount.Integral += giving;
liveAccount.UpdateTime = now;
var result3 = this.CurrentRepository.Update(liveAccount);
if (result3 <= 0)
{
result.Msg = $"主播获得粉丝[{userId}]的礼物，增加积分失败";
return(result);
}
//积分变动记录
var result4 = this._integralRecordService.Add(new IntegralRecord()
{
UserId = roomInfo.UserId,
ChangeType = (int)IntegralChangeTypeEnum.IncreaseByGetGift,
IntegralBefore = integral,
IntegralAfter = liveAccount.Integral,
Remark = $"主播获得粉丝[{userId}]的礼物，增加积分{giving}",
InsertTime = now,
UpdateTime = now
});
if (result4.Code == ResultEnum.Error || result4.Data.ID <= 0)
{
result.Msg = $"主播获得粉丝[{userId}]的礼物，增加积分变动记录失败";
return(result);
}
#endregion
result.Data = userAccount.Gold;
result.Code = ResultEnum.Success;
return(result);
}