package internal

import (
	"context"
	"fmt"
	"github.com/gogf/gf/util/guid"
	"yx-dataset-server/app/errors"
	"yx-dataset-server/app/model"
	"yx-dataset-server/app/schema"
	"yx-dataset-server/library/ragflow"
	"yx-dataset-server/library/robot"
)

// NewRobotConfig 创建RobotConfig
func NewRobotConfig(
	mRobotConfig model.IRobotConfig,
	mRobotDataset model.IRobotDataset,
	mTrans model.ITrans,
	mChatMessage model.IChatMessage,
	mChatAssistant model.IChatAssistant,
	mChatSession model.IChatSession,
	mChatDataset model.IChatDataset,
	mUser model.IUser,
	mDataset model.IDataset,
) *RobotConfig {
	return &RobotConfig{
		RobotConfigModel:   mRobotConfig,
		robotDatasetModel:  mRobotDataset,
		transModel:         mTrans,
		chatMessageModel:   mChatMessage,
		chatAssistantModel: mChatAssistant,
		chatSessionModel:   mChatSession,
		chatDatasetModel:   mChatDataset,
		userModel:          mUser,
		datasetModel:       mDataset,
	}
}

// RobotConfig 创建RobotConfig对象
type RobotConfig struct {
	RobotConfigModel   model.IRobotConfig
	robotDatasetModel  model.IRobotDataset
	transModel         model.ITrans
	chatMessageModel   model.IChatMessage
	chatAssistantModel model.IChatAssistant
	chatSessionModel   model.IChatSession
	chatDatasetModel   model.IChatDataset
	userModel          model.IUser
	datasetModel       model.IDataset
}

// Query 查询数据
func (a *RobotConfig) Query(ctx context.Context, params schema.RobotConfigQueryParam, opts ...schema.RobotConfigQueryOptions) (*schema.RobotConfigQueryResult, error) {
	return a.RobotConfigModel.Query(ctx, params, opts...)
}

// Get 查询指定数据
func (a *RobotConfig) Get(ctx context.Context, recordID string, opts ...schema.RobotConfigQueryOptions) (*schema.RobotConfig, error) {
	item, err := a.RobotConfigModel.Get(ctx, recordID, opts...)
	if err != nil {
		return nil, err
	} else if item == nil {
		return nil, errors.ErrNotFound
	}
	return item, nil
}

func (a *RobotConfig) checkCode(ctx context.Context, code string) error {
	result, err := a.RobotConfigModel.Query(ctx, schema.RobotConfigQueryParam{
		Code: code,
	}, schema.RobotConfigQueryOptions{
		PageParam: &schema.PaginationParam{PageSize: -1},
	})
	if err != nil {
		return err
	} else if result.PageResult.Total > 0 {
		return errors.New400Response("编号已经存在")
	}
	return nil
}

func (a *RobotConfig) getUpdate(ctx context.Context, recordID string) (*schema.RobotConfig, error) {
	return a.Get(ctx, recordID)
}

// Create 创建数据
func (a *RobotConfig) Create(ctx context.Context, item schema.RobotConfig) (*schema.RobotConfig, error) {
	item.RecordID = guid.S()
	item.CreatorId = GetUserID(ctx)
	item.AssistantId = guid.S()
	item.SessionId = guid.S()

	item.Webhook = fmt.Sprintf("%s%s", "http://113.128.186.214:6666/robot/v1/robots/receive/", item.RecordID)
	user := GetRootUser()
	var err error
	if !CheckIsRootUser(ctx) {
		user, err = a.userModel.Get(ctx, GetUserID(ctx))
		if err != nil {
			return nil, err
		}
	}
	// 创建对话助手及会话
	err = a.createAssistant(ctx, item.AssistantId, item.SessionId, *user, item)
	if err != nil {
		return nil, err
	}
	err = ExecTrans(ctx, a.transModel, func(ctx context.Context) error {
		if len(item.Datasets) > 0 {
			for _, dataset := range item.Datasets {
				err := a.robotDatasetModel.Create(ctx, schema.RobotDataset{
					RecordID:  guid.S(),
					RobotId:   item.RecordID,
					DatasetId: dataset.RecordID,
				})
				if err != nil {
					return err
				}
			}
			return a.RobotConfigModel.Create(ctx, item)
		}
		return nil
	})
	if err != nil {
		return nil, err
	}
	return a.getUpdate(ctx, item.RecordID)
}

// Update 更新数据
func (a *RobotConfig) Update(ctx context.Context, recordID string, item schema.RobotConfig) (*schema.RobotConfig, error) {
	oldItem, err := a.RobotConfigModel.Get(ctx, recordID)
	if err != nil {
		return nil, err
	} else if oldItem == nil {
		return nil, errors.ErrNotFound
	}
	err = a.RobotConfigModel.Update(ctx, recordID, item)
	if err != nil {
		return nil, err
	}
	return a.getUpdate(ctx, recordID)
}

// Delete 删除数据
func (a *RobotConfig) Delete(ctx context.Context, recordID string) error {
	oldItem, err := a.RobotConfigModel.Get(ctx, recordID)
	if err != nil {
		return err
	} else if oldItem == nil {
		return errors.ErrNotFound
	}

	return a.RobotConfigModel.Delete(ctx, recordID)
}

// UpdateStatus 更新状态
func (a *RobotConfig) UpdateStatus(ctx context.Context, recordID string, status int) error {
	oldItem, err := a.RobotConfigModel.Get(ctx, recordID)
	if err != nil {
		return err
	} else if oldItem == nil {
		return errors.ErrNotFound
	}
	return a.RobotConfigModel.UpdateStatus(ctx, recordID, status)
}

func (a *RobotConfig) ReceiveMessage(ctx context.Context, id string, message robot.DingTalkRobotMessage) error {

	robotConfig, err := a.RobotConfigModel.Get(ctx, id)
	if err != nil {
		return err
	}

	assistant, err := a.chatAssistantModel.Get(ctx, robotConfig.AssistantId)
	if err != nil {
		return err
	}

	session, err := a.chatSessionModel.Get(ctx, robotConfig.SessionId)
	if err != nil {
		return err
	}

	stream, err := ragflow.GetHttpClient().ChatCompletionsStream(ctx, assistant.RagChatId, &ragflow.ChatCompletionReq{
		Question:  message.Text.Content,
		SessionID: session.RagSessionId,
	})
	if err != nil {
		return err
	}
	defer stream.Close() // 关闭流

	m := new(schema.ChatMessage)
	m.RecordID = guid.S()
	m.Question = message.Text.Content
	m.AssistantId = assistant.RecordID
	m.SessionId = session.RecordID
	m.UserId = GetUserID(ctx)

	m, err = CollectStreamDataAndCreate(ctx, stream, m)
	if err != nil {
		return err
	}

	err = a.chatMessageModel.Create(ctx, *m)
	if err != nil {
		return err
	}

	replyMsg := robot.DingReplyMsg{
		MsgType: "markdown",
		Markdown: robot.Markdown{
			Title: m.Question,
			Text:  m.Answer,
		},
	}

	err = robot.SendReplyMsg(message.SessionWebhook, replyMsg)
	if err != nil {
		fmt.Println(err)
		return err
	}
	return nil
}

func (a *RobotConfig) createAssistant(ctx context.Context, assistantId, sessionId string, user schema.User, item schema.RobotConfig) error {

	err := ExecTrans(ctx, a.transModel, func(ctx context.Context) error {
		dataset, err := a.datasetModel.Query(ctx, schema.DatasetQueryParam{RecordIds: item.Datasets.ToRecordIds()})
		if err != nil {
			return err
		}

		c, err := ragflow.GetHttpClient().CreateChat(ctx, &ragflow.CreateChatReq{
			Name:       fmt.Sprintf("%s%s", item.Name, "助手"),
			DatasetIDs: dataset.Data.ToRagDataIds(),
		})
		if err != nil {
			return err
		}
		err = a.chatAssistantModel.Create(ctx, schema.ChatAssistant{
			RecordID:  assistantId,
			OrgId:     user.OrgId,
			Name:      fmt.Sprintf("%s%s", item.Name, "助手"),
			RagChatId: c.Data.ID,
			CreatorId: user.RecordID,
		})
		if err != nil {
			return err
		}

		if len(item.Datasets) > 0 {
			for _, v := range item.Datasets {
				err = a.chatDatasetModel.Create(ctx, schema.ChatDataset{
					RecordID:        guid.S(),
					ChatAssistantId: assistantId,
					DatasetId:       v.RecordID,
				})
				if err != nil {
					return err
				}
			}
		}

		s, err := ragflow.GetHttpClient().CreateSession(ctx, c.Data.ID, &ragflow.CreateSessionReq{
			Name: fmt.Sprintf("%s%s", item.Name, "会话"),
		})
		if err != nil {
			return err
		}
		err = a.chatSessionModel.Create(ctx, schema.ChatSession{
			RecordID:     sessionId,
			Name:         fmt.Sprintf("%s%s", item.Name, "会话"),
			AssistantId:  assistantId,
			RagSessionId: s.Data.Id,
			CreatorId:    user.RecordID,
		})

		return nil
	})
	return err
}