package chat

import (
	"fmt"
	"go_dreamfactory/comm"
	"go_dreamfactory/pb"
)

//参数校验
func (this *apiComp) GetListCheck(session comm.IUserSession, req *pb.ChatGetListReq) (errdata *pb.ErrorData) {
	if req.Channel == pb.ChatChannel_CrossServer && req.ChannelId == 0 {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_ReqParameterError,
			Title: pb.ErrorCode_ReqParameterError.ToString(),
		}
	}
	return
}

///获取本服聊天消息记录
func (this *apiComp) GetList(session comm.IUserSession, req *pb.ChatGetListReq) (errdata *pb.ErrorData) {
	var (
		err    error
		result *pb.DBUserExpand
		list   []*pb.DBChat
	)

	if errdata = this.GetListCheck(session, req); errdata != nil {
		return
	}

	switch req.Channel {
	case pb.ChatChannel_World:
		if list, err = this.module.modelChat.getChatQueue(req.Channel, session.GetServiecTag(), "", 0); err != nil {
			errdata = &pb.ErrorData{
				Code:    pb.ErrorCode_DBError,
				Title:   pb.ErrorCode_DBError.ToString(),
				Message: err.Error(),
			}
			return
		}
		break
	case pb.ChatChannel_Union:
		if list, err = this.module.modelChat.getChatQueue(req.Channel, session.GetServiecTag(), req.UnionId, 0); err != nil {
			errdata = &pb.ErrorData{
				Code:    pb.ErrorCode_DBError,
				Title:   pb.ErrorCode_DBError.ToString(),
				Message: err.Error(),
			}
			return
		}
		break
	case pb.ChatChannel_Private:
		if list, err = this.module.modelChat.queryUserMsg(session.GetUserId()); err != nil {
			errdata = &pb.ErrorData{
				Code:    pb.ErrorCode_DBError,
				Title:   pb.ErrorCode_DBError.ToString(),
				Message: err.Error(),
			}
			return
		}
		break
	case pb.ChatChannel_CrossServer:
		if result, err = this.module.ModuleUser.GetUserExpand(session.GetUserId()); err != nil {
			this.module.Errorf("err:%v", err)
			errdata = &pb.ErrorData{
				Code:    pb.ErrorCode_DBError,
				Title:   pb.ErrorCode_DBError.ToString(),
				Message: err.Error(),
			}
			return
		}
		if req.ChannelId != result.Chatchannel {
			errdata = &pb.ErrorData{
				Code:    pb.ErrorCode_ReqParameterError,
				Title:   pb.ErrorCode_ReqParameterError.ToString(),
				Message: fmt.Sprintf("req.ChannelId:%d != result.Chatchannel:%d", req.ChannelId, result.Chatchannel),
			}
			return
		}
		if list, err = this.module.modelChat.getChatQueue(req.Channel, session.GetServiecTag(), "", req.ChannelId); err != nil {
			errdata = &pb.ErrorData{
				Code:    pb.ErrorCode_DBError,
				Title:   pb.ErrorCode_DBError.ToString(),
				Message: err.Error(),
			}
			return
		}
		break
	case pb.ChatChannel_System:
		if list, err = this.module.modelChat.getChatQueue(req.Channel, session.GetServiecTag(), "", 0); err != nil {
			errdata = &pb.ErrorData{
				Code:    pb.ErrorCode_DBError,
				Title:   pb.ErrorCode_DBError.ToString(),
				Message: err.Error(),
			}
			return
		}
		break
	default:

		this.module.Errorf("不存在的聊天频道类型channel:%d ", req.Channel)
		errdata = &pb.ErrorData{
			Code:    pb.ErrorCode_ReqParameterError,
			Title:   pb.ErrorCode_ReqParameterError.ToString(),
			Message: fmt.Sprintf("不存在的聊天频道类型 channel:%d ", req.Channel),
		}
		return
	}
	session.SendMsg(string(this.module.GetType()), "getlist", &pb.ChatGetListResp{Chats: list})
	return
}