package util

import (
	"context"
	"github.com/nlpodyssey/cybertron/pkg/models/bert"
	"github.com/nlpodyssey/cybertron/pkg/tasks"
	"github.com/nlpodyssey/cybertron/pkg/tasks/textencoding"
	"log"
)

func SafeConvert2String(obj interface{}) string {
	if obj != nil {
		return obj.(string)
	}
	return ""
}

var m textencoding.Interface

func init() {
	modelsDir := "./"
	modelName := "BAAI/bge-base-zh-v1.5"
	//modelName := "bge_base"
	var err error

	m, err = tasks.Load[textencoding.Interface](&tasks.Config{ModelsDir: modelsDir, ModelName: modelName, DownloadPolicy: tasks.DownloadNever, ConversionPolicy: tasks.ConvertNever})
	if err != nil {
		log.Fatal(err)
	}
}

// 转向量
func EncodeVector(text string) ([]float64, error) {
	result, err := m.Encode(context.Background(), text, int(bert.MeanPooling))
	if err != nil {
		return nil, err
	}
	return result.Vector.Data().F64(), nil
}