package logic

import (
	"context"
	"strings"

	"muyu-apiserver/model"
	"muyu-apiserver/pkg/tenantctx"
	"muyu-apiserver/pkg/uid"
	"muyu-apiserver/rpc/inventory/internal/svc"
	"muyu-apiserver/rpc/inventory/pb"

	"github.com/zeromicro/go-zero/core/logx"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
)

type CreateProductBatchLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
	logx.Logger
}

func NewCreateProductBatchLogic(ctx context.Context, svcCtx *svc.ServiceContext) *CreateProductBatchLogic {
	return &CreateProductBatchLogic{ctx: ctx, svcCtx: svcCtx, Logger: logx.WithContext(ctx)}
}

func (l *CreateProductBatchLogic) CreateProductBatch(in *pb.CreateProductBatchReq) (*pb.IdResp, error) {
	tenantId := tenantctx.ExtractTenantId(l.ctx)
	product, err := l.svcCtx.ProductModel.FindOneByProductId(l.ctx, in.ProductId)
	if err != nil || product.TenantId != tenantId {
		return nil, status.Error(codes.NotFound, "product not found")
	}
	batchNo, err := l.svcCtx.ProductBatchModel.NextBatchNo(l.ctx, tenantId, product.ProductCode)
	if err != nil {
		return nil, status.Error(codes.Internal, err.Error())
	}
	if requestedBatchNo := strings.TrimSpace(in.Batch.GetBatchNo()); requestedBatchNo != "" {
		batchNo = requestedBatchNo
	}
	batchId := uid.Generate()
	batch := &model.InvProductBatch{
		BatchId:   batchId,
		TenantId:  tenantId,
		ProductId: product.ProductId,
		BatchNo:   batchNo,
		Status:    1,
	}
	if err := batchInputToModelFields(in.Batch, batch); err != nil {
		return nil, status.Error(codes.InvalidArgument, err.Error())
	}
	if _, err := l.svcCtx.ProductBatchModel.Insert(l.ctx, batch); err != nil {
		return nil, status.Error(codes.Internal, err.Error())
	}
	return &pb.IdResp{Id: batchId}, nil
}