package service

import (
	"context"
	"rag/common/eino"
	"rag/consts/document"
	"rag/consts/public"
	"rag/dao"
	"rag/model/dto"
	"rag/model/entity"

	gmq "github.com/bjang03/gmq/core/gmq"
	"github.com/bjang03/gmq/mq"
	"github.com/bjang03/gmq/types"
	"github.com/cloudwego/eino/components/indexer"
	"github.com/cloudwego/eino/schema"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/util/gconv"
)

var DocumentChunk = new(documentChunkService)

type documentChunkService struct{}

const (
	DatasetIndexStatusReady = "ready"
)

// Update 更新文件块
func (s *documentChunkService) Update(ctx context.Context, req *dto.UpdateDocumentChunkReq) (err error) {
	_, err = dao.DocumentChunk.Update(ctx, req)
	return
}

// List 获取文件块列表
func (s *documentChunkService) List(ctx context.Context, req *dto.ListDocumentChunkReq) (res *dto.ListDocumentChunkRes, err error) {
	list, total, err := dao.DocumentChunk.List(ctx, req)
	if err != nil {
		return
	}
	res = &dto.ListDocumentChunkRes{
		Total: total,
	}
	err = gconv.Struct(list, &res.List)
	return
}

func (s *documentChunkService) DocsChunkMsg(ctx context.Context, msg any) (err error) {
	var docs = make([]*schema.Document, 0)
	msgMap := gconv.Map(msg)
	if err = gconv.Structs(msgMap["data"], &docs); err != nil {
		g.Log().Error(ctx, "DocsChunkMsg err:", err)
		return
	}
	if len(docs) == 0 {
		g.Log().Error(ctx, "DocsChunkMsg err:", "msg is empty")
		return
	}

	idx := eino.NewPGVectorIndexer(&eino.PGVectorIndexerOptions{
		BatchSize: 10,
	})
	rows, err := idx.Store(ctx, docs, indexer.WithEmbedding(eino.EmbedderDashscope))
	if err != nil || rows == 0 {
		g.Log().Error(ctx, "DocsChunkMsg rows: , err:", rows, err)
		return
	}
	tenantId := gconv.Uint64(docs[0].MetaData[entity.DocumentChunkCol.TenantId])
	creator := gconv.String(docs[0].MetaData[entity.DocumentChunkCol.Creator])
	documentId := gconv.Int64(docs[0].MetaData[entity.DocumentChunkCol.DocumentId])
	err = s.publishKnowledgeDocumentMsg(ctx, tenantId, creator, documentId, document.VectorStatusCompleted.Code())

	return
}

// publishKnowledgeDocumentMsg 发布消息
func (s *documentChunkService) publishKnowledgeDocumentMsg(ctx context.Context, tenantId uint64, creator string, documentId int64, vectorStatus document.VectorStatus) (err error) {
	knowledgeDocumentMsg := dto.KnowledgeDocumentMsg{
		TenantId:     tenantId,
		Creator:      creator,
		Id:           documentId,
		VectorStatus: vectorStatus,
	}
	err = gmq.GetGmq("primary").GmqPublish(ctx, &mq.RedisPubMessage{
		PubMessage: types.PubMessage{
			Topic: public.KnowledgeDocumentVectorStatusTopic,
			Data:  knowledgeDocumentMsg,
		},
	})
	return
}