package service

import (
	"StuAcaWorksAI/dao"
	"StuAcaWorksAI/proto"
	"errors"
	"github.com/google/uuid"
)

func CreateKnowledgeBase(userID int, req proto.KnowledgeBaseReq) (dao.KnowledgeBase, error) {
	//生成uuid
	uuid := uuid.New().String()
	sessionName := "知识库会话:" + req.Name
	//创建会话
	err, sessionID := CreateSession(userID, proto.SessionTypeKnowledgeBase, sessionName)
	if err != nil {
		return dao.KnowledgeBase{}, err
	}

	// 创建知识库
	base := dao.KnowledgeBase{AuthID: uint(userID), Name: req.Name, Description: req.Description, UUID: uuid, FileIDs: req.FileIDS, SessionID: sessionID}
	knowledgeBase, err := dao.CreateKnowledgeBase(base)
	if err != nil {
		return dao.KnowledgeBase{}, err
	}
	// 创建向量数据库,后面完成

	return knowledgeBase, err
}

// 更新知识库
func UpdateKnowledgeBase(userID int, req proto.KnowledgeBaseReq) (dao.KnowledgeBase, error) {
	//查找知识库
	knowledgeBase, err := dao.GetKnowledgeBaseByID(req.ID)
	if err != nil {
		return dao.KnowledgeBase{}, err
	}
	if knowledgeBase.AuthID != uint(userID) {
		return dao.KnowledgeBase{}, errors.New("not authorized to update this knowledge base")
	}

	knowledgeBase.Name = req.Name
	knowledgeBase.Description = req.Description
	knowledgeBase.FileIDs = req.FileIDS

	return dao.UpdateKnowledgeBase(knowledgeBase)
}

// 获取知识库列表
func GetKnowledgeBaseList(userID int) ([]dao.KnowledgeBase, error) {
	knowledgeBases, err := dao.GetKnowledgeBaseList(userID)
	if err != nil {
		return nil, err
	}
	return knowledgeBases, nil
}

// 删除知识库
func DeleteKnowledgeBase(userID int, req proto.KnowledgeBaseReq) error {
	//查找知识库
	knowledgeBase, err := dao.GetKnowledgeBaseByID(req.ID)
	if err != nil {
		return err
	}
	if knowledgeBase.AuthID != uint(userID) {
		return errors.New("not authorized to delete this knowledge base")
	}

	return dao.DeleteKnowledgeBase(knowledgeBase.ID)
}