package backend

import (
	"context"
	"fmt"

	"github.com/mudler/LocalAI/core/config"
	"github.com/mudler/LocalAI/pkg/grpc/proto"
	model "github.com/mudler/LocalAI/pkg/model"
)

func Rerank(modelFile string, request *proto.RerankRequest, loader *model.ModelLoader, appConfig *config.ApplicationConfig, backendConfig config.BackendConfig) (*proto.RerankResult, error) {

	opts := ModelOptions(backendConfig, appConfig, []model.Option{model.WithModel(modelFile)})
	rerankModel, err := loader.BackendLoader(opts...)
	if err != nil {
		return nil, err
	}

	if rerankModel == nil {
		return nil, fmt.Errorf("could not load rerank model")
	}

	res, err := rerankModel.Rerank(context.Background(), request)

	return res, err
}