package productlogic

import (
	"code.30cm.net/digimon/app-cloudep-product-service/internal/utils"
	"context"
	"google.golang.org/protobuf/proto"

	"code.30cm.net/digimon/app-cloudep-product-service/gen_result/pb/product"
	"code.30cm.net/digimon/app-cloudep-product-service/internal/svc"

	"github.com/zeromicro/go-zero/core/logx"
)

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

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

// GetProductItem 取得 ProductItem
func (l *GetProductItemLogic) GetProductItem(in *product.GetProductItemRequest) (*product.ProductItem, error) {
	item, err := l.svcCtx.ProductItemUseCase.Get(l.ctx, in.GetId())
	if err != nil {
		return nil, err
	}

	result := &product.ProductItem{
		Id:               proto.String(item.ID),
		ReferenceId:      item.ReferenceID,
		Name:             item.Name,
		Description:      utils.DecodeToBase64Snappy(item.Description),
		ShortDescription: utils.DecodeToBase64Snappy(item.ShortDescription),
		IsUnLimit:        item.IsUnLimit,
		IsFree:           item.IsFree,
		Stock:            item.Stock,
		Price:            item.Price,
		Sku:              item.SKU,
		TimeSeries:       item.TimeSeries.ToString(),
		SalesCount:       item.SalesCount,
		Status:           item.Status.ToString(),
		UpdatedAt:        proto.String(item.UpdatedAt),
		CreatedAt:        proto.String(item.CreatedAt),
	}
	media := make([]*product.Media, 0, len(item.Media))
	for _, pi := range item.Media {
		media = append(media, &product.Media{
			Sort: proto.Uint64(pi.Sort),
			Url:  pi.URL,
			Type: pi.Type,
		})
	}
	result.Media = media

	// 運費
	f := make([]*product.CustomField, 0, len(item.Freight))
	for _, fItem := range item.Freight {
		f = append(f, &product.CustomField{
			Key:   fItem.Key,
			Value: fItem.Value,
		})
	}
	result.Freight = f

	// 運費
	c := make([]*product.CustomField, 0, len(item.CustomFields))
	for _, fItem := range item.CustomFields {
		f = append(f, &product.CustomField{
			Key:   fItem.Key,
			Value: fItem.Value,
		})
	}
	result.CustomFields = c

	return result, nil
}