package dao

import (
	"StuAcaWorksAI/proto"
	"gorm.io/gorm"
)

// 知识库表结构，存储知识库的基本信息及文件信息
type KnowledgeBase struct {
	gorm.Model
	AuthID      uint   `gorm:"column:auth_id"`     // 知识库创建者ID
	Name        string `gorm:"column:name"`        // 知识库名称
	Description string `gorm:"column:description"` // 知识库描述
	SessionID   uint   `gorm:"column:session_id"`  // 会话ID,创建知识库自动生成会话
	UUID        string `gorm:"column:uuid"`        // 知识库UUID,用于向量数据库唯一标识
	FileIDs     string `gorm:"column:file_ids"`    // 文件ID列表，逗号分隔json '[{'file_id';1}]'
}

// 创建知识库
func CreateKnowledgeBase(base KnowledgeBase) (KnowledgeBase, error) {
	var db2 *gorm.DB
	var err error
	if proto.Config.SERVER_SQL_LOG {
		db2 = DB.Debug()
	} else {
		db2 = DB
	}
	err = db2.Create(&base).Error
	if err != nil {
		return KnowledgeBase{}, err
	}
	return base, nil
}

// 更新知识库
func UpdateKnowledgeBase(base KnowledgeBase) (KnowledgeBase, error) {
	var db2 *gorm.DB
	var err error
	if proto.Config.SERVER_SQL_LOG {
		db2 = DB.Debug()
	} else {
		db2 = DB
	}
	err = db2.Save(&base).Error
	if err != nil {
		return KnowledgeBase{}, err
	}
	return base, nil
}

// 获取知识库列表
func GetKnowledgeBaseList(authID int) ([]KnowledgeBase, error) {
	var db2 *gorm.DB
	var err error
	if proto.Config.SERVER_SQL_LOG {
		db2 = DB.Debug()
	} else {
		db2 = DB
	}
	var bases []KnowledgeBase
	err = db2.Where("auth_id = ?", authID).Find(&bases).Error
	if err != nil {
		return nil, err
	}
	return bases, nil
}

// 根据id获取知识库
func GetKnowledgeBaseByID(id uint) (KnowledgeBase, error) {
	var db2 *gorm.DB
	var err error
	if proto.Config.SERVER_SQL_LOG {
		db2 = DB.Debug()
	} else {
		db2 = DB
	}
	var base KnowledgeBase
	err = db2.Where("id = ?", id).First(&base).Error
	if err != nil {
		return KnowledgeBase{}, err
	}
	return base, nil
}

// 删除知识库
func DeleteKnowledgeBase(id uint) error {
	var db2 *gorm.DB
	var err error
	if proto.Config.SERVER_SQL_LOG {
		db2 = DB.Debug()
	} else {
		db2 = DB
	}
	err = db2.Where("id = ?", id).Delete(&KnowledgeBase{}).Error
	if err != nil {
		return err
	}
	return nil
}