package logic

import (
	"context"
	"database/sql"
	"strings"

	"muyu-apiserver/pkg/tenantctx"
	"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 UpdateYarnLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
	logx.Logger
}

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

func (l *UpdateYarnLogic) UpdateYarn(in *pb.UpdateYarnReq) (*pb.Empty, error) {
	tenantId := tenantctx.ExtractTenantId(l.ctx)
	yarn, err := l.svcCtx.YarnModel.FindOneByYarnId(l.ctx, in.YarnId)
	if err != nil || yarn.TenantId != tenantId {
		return nil, status.Error(codes.NotFound, "纱线不存在")
	}
	yarnName := strings.TrimSpace(in.YarnName)
	if yarnName == "" {
		return nil, status.Error(codes.InvalidArgument, "纱线名称不能为空")
	}
	if strings.TrimSpace(in.SupplierId) == "" {
		return nil, status.Error(codes.InvalidArgument, "供应商不能为空")
	}
	supplier, err := l.svcCtx.SupplierModel.FindOneBySupplierId(l.ctx, in.SupplierId)
	if err != nil || supplier.TenantId != tenantId {
		return nil, status.Error(codes.InvalidArgument, "供应商不存在")
	}

	yarn.YarnName = yarnName
	yarn.Color = normalizeYarnColor(in.Color)
	yarn.WeightGM = parseDecimalString(in.WeightGM)
	yarn.SupplierId = in.SupplierId
	yarn.DyeFactory = normalizeDyeFactory(in.DyeFactory)
	yarn.ImageUrl = in.ImageUrl
	yarn.Remark = sql.NullString{String: in.Remark, Valid: in.Remark != ""}
	if in.Status == 0 {
		yarn.Status = 0
	} else {
		yarn.Status = 1
	}

	if err := l.svcCtx.YarnModel.Update(l.ctx, yarn); err != nil {
		return nil, status.Error(codes.Internal, err.Error())
	}
	return &pb.Empty{}, nil
}