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path: root/item/validators.go
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/* openbills - Server for web based Libre Billing Software
 * Copyright (C) 2023  Vidhu Kant Sharma <vidhukant@vidhukant.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package item

import (
	"strconv"
	"strings"

	"vidhukant.com/openbills/errors"
)

func (i *SavedItem) validate() error {
	// trim whitespaces
	i.Name = strings.TrimSpace(i.Name)
	i.BrandName = strings.TrimSpace(i.BrandName)
	i.Category = strings.TrimSpace(i.Category)
	i.Description = strings.TrimSpace(i.Description)
	i.HSN = strings.TrimSpace(i.HSN)
	i.UnitOfMeasure = strings.TrimSpace(i.UnitOfMeasure)
	i.UnitPrice = strings.TrimSpace(i.UnitPrice)
	i.GSTPercentage = strings.TrimSpace(i.GSTPercentage)

	var err error

	// check if UnitPrice is float
	_, err = strconv.ParseFloat(i.UnitPrice, 64)
	if err != nil && strings.TrimSpace(i.UnitPrice) != "" {
		return errors.ErrInvalidUnitPrice
	}

	// check if GSTPercentage is float
	_, err = strconv.ParseFloat(i.GSTPercentage, 64)
	if err != nil && strings.TrimSpace(i.GSTPercentage) != "" {
		return errors.ErrInvalidGSTPercentage
	}

	return nil
}