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+/*
+ This file is part of GNU Taler
+ (C) 2021-2024 Taler Systems S.A.
+
+ GNU Taler 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, or (at your option) any later version.
+
+ GNU Taler 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
+ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+import { useTranslationContext } from "@gnu-taler/web-util/browser";
+import { h, VNode } from "preact";
+import { useState } from "preact/hooks";
+import { ProductMap } from "../../paths/instance/orders/create/CreatePage.js";
+import { FormErrors, FormProvider } from "../form/FormProvider.js";
+import { InputNumber } from "../form/InputNumber.js";
+import { InputSearchOnList } from "../form/InputSearchOnList.js";
+import { TalerMerchantApi } from "@gnu-taler/taler-util";
+
+type Form = {
+ product: TalerMerchantApi.ProductDetail & WithId;
+ quantity: number;
+};
+
+interface Props {
+ currentProducts: ProductMap;
+ onAddProduct: (
+ product: TalerMerchantApi.ProductDetail & WithId,
+ quantity: number,
+ ) => void;
+ inventory: (TalerMerchantApi.ProductDetail & WithId)[];
+}
+
+export function InventoryProductForm({
+ currentProducts,
+ onAddProduct,
+ inventory,
+}: Props): VNode {
+ const initialState = { quantity: 1 };
+ const [state, setState] = useState<Partial<Form>>(initialState);
+ const [errors, setErrors] = useState<FormErrors<Form>>({});
+
+ const { i18n } = useTranslationContext();
+
+ const productWithInfiniteStock =
+ state.product && state.product.total_stock === -1;
+
+ const submit = (): void => {
+ if (!state.product) {
+ setErrors({
+ product: i18n.str`You must enter a valid product identifier.`,
+ });
+ return;
+ }
+ if (productWithInfiniteStock) {
+ onAddProduct(state.product, 1);
+ } else {
+ if (!state.quantity || state.quantity <= 0) {
+ setErrors({ quantity: i18n.str`Quantity must be greater than 0!` });
+ return;
+ }
+ const currentStock =
+ state.product.total_stock -
+ state.product.total_lost -
+ state.product.total_sold;
+ const p = currentProducts[state.product.id];
+ if (p) {
+ if (state.quantity + p.quantity > currentStock) {
+ const left = currentStock - p.quantity;
+ setErrors({
+ quantity: i18n.str`This quantity exceeds remaining stock. Currently, only ${left} units remain unreserved in stock.`,
+ });
+ return;
+ }
+ onAddProduct(state.product, state.quantity + p.quantity);
+ } else {
+ if (state.quantity > currentStock) {
+ const left = currentStock;
+ setErrors({
+ quantity: i18n.str`This quantity exceeds remaining stock. Currently, only ${left} units remain unreserved in stock.`,
+ });
+ return;
+ }
+ onAddProduct(state.product, state.quantity);
+ }
+ }
+
+ setState(initialState);
+ };
+
+ return (
+ <FormProvider<Form> errors={errors} object={state} valueHandler={setState}>
+ <InputSearchOnList
+ label={i18n.str`Search product`}
+ selected={state.product}
+ onChange={(p) => setState((v) => ({ ...v, product: p }))}
+ list={inventory}
+ withImage
+ />
+ {state.product && (
+ <div class="columns mt-5">
+ <div class="column is-two-thirds">
+ {!productWithInfiniteStock && (
+ <InputNumber<Form>
+ name="quantity"
+ label={i18n.str`Quantity`}
+ tooltip={i18n.str`how many products will be added`}
+ />
+ )}
+ </div>
+ <div class="column">
+ <div class="buttons is-right">
+ <button class="button is-success" onClick={submit}>
+ <i18n.Translate>Add from inventory</i18n.Translate>
+ </button>
+ </div>
+ </div>
+ </div>
+ )}
+ </FormProvider>
+ );
+}