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+/*
+ This file is part of GNU Taler
+ (C) 2021-2023 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 {
+ HttpResponse,
+ HttpResponseOk,
+ HttpResponsePaginated,
+ RequestError,
+} from "@gnu-taler/web-util/browser";
+import { useEffect, useState } from "preact/hooks";
+import { MerchantBackend } from "../declaration.js";
+import { MAX_RESULT_SIZE, PAGE_SIZE } from "../utils/constants.js";
+import { useBackendInstanceRequest, useMatchMutate } from "./backend.js";
+
+// FIX default import https://github.com/microsoft/TypeScript/issues/49189
+import _useSWR, { SWRHook } from "swr";
+const useSWR = _useSWR as unknown as SWRHook;
+
+export interface OrderAPI {
+ //FIXME: add OutOfStockResponse on 410
+ createOrder: (
+ data: MerchantBackend.Orders.PostOrderRequest,
+ ) => Promise<HttpResponseOk<MerchantBackend.Orders.PostOrderResponse>>;
+ forgetOrder: (
+ id: string,
+ data: MerchantBackend.Orders.ForgetRequest,
+ ) => Promise<HttpResponseOk<void>>;
+ refundOrder: (
+ id: string,
+ data: MerchantBackend.Orders.RefundRequest,
+ ) => Promise<HttpResponseOk<MerchantBackend.Orders.MerchantRefundResponse>>;
+ deleteOrder: (id: string) => Promise<HttpResponseOk<void>>;
+ getPaymentURL: (id: string) => Promise<HttpResponseOk<string>>;
+}
+
+type YesOrNo = "yes" | "no";
+
+export function useOrderAPI(): OrderAPI {
+ const mutateAll = useMatchMutate();
+ const { request } = useBackendInstanceRequest();
+
+ const createOrder = async (
+ data: MerchantBackend.Orders.PostOrderRequest,
+ ): Promise<HttpResponseOk<MerchantBackend.Orders.PostOrderResponse>> => {
+ const res = await request<MerchantBackend.Orders.PostOrderResponse>(
+ `/private/orders`,
+ {
+ method: "POST",
+ data,
+ },
+ );
+ await mutateAll(/.*private\/orders.*/);
+ // mutate('')
+ return res;
+ };
+ const refundOrder = async (
+ orderId: string,
+ data: MerchantBackend.Orders.RefundRequest,
+ ): Promise<HttpResponseOk<MerchantBackend.Orders.MerchantRefundResponse>> => {
+ mutateAll(/@"\/private\/orders"@/);
+ const res = request<MerchantBackend.Orders.MerchantRefundResponse>(
+ `/private/orders/${orderId}/refund`,
+ {
+ method: "POST",
+ data,
+ },
+ );
+
+ // order list returns refundable information, so we must evict everything
+ await mutateAll(/.*private\/orders.*/);
+ return res;
+ };
+
+ const forgetOrder = async (
+ orderId: string,
+ data: MerchantBackend.Orders.ForgetRequest,
+ ): Promise<HttpResponseOk<void>> => {
+ mutateAll(/@"\/private\/orders"@/);
+ const res = request<void>(`/private/orders/${orderId}/forget`, {
+ method: "PATCH",
+ data,
+ });
+ // we may be forgetting some fields that are pare of the listing, so we must evict everything
+ await mutateAll(/.*private\/orders.*/);
+ return res;
+ };
+ const deleteOrder = async (
+ orderId: string,
+ ): Promise<HttpResponseOk<void>> => {
+ mutateAll(/@"\/private\/orders"@/);
+ const res = request<void>(`/private/orders/${orderId}`, {
+ method: "DELETE",
+ });
+ await mutateAll(/.*private\/orders.*/);
+ return res;
+ };
+
+ const getPaymentURL = async (
+ orderId: string,
+ ): Promise<HttpResponseOk<string>> => {
+ return request<MerchantBackend.Orders.MerchantOrderStatusResponse>(
+ `/private/orders/${orderId}`,
+ {
+ method: "GET",
+ },
+ ).then((res) => {
+ const url =
+ res.data.order_status === "unpaid"
+ ? res.data.taler_pay_uri
+ : res.data.contract_terms.fulfillment_url;
+ const response: HttpResponseOk<string> = res as any;
+ response.data = url || "";
+ return response;
+ });
+ };
+
+ return { createOrder, forgetOrder, deleteOrder, refundOrder, getPaymentURL };
+}
+
+export function useOrderDetails(
+ oderId: string,
+): HttpResponse<
+ MerchantBackend.Orders.MerchantOrderStatusResponse,
+ MerchantBackend.ErrorDetail
+> {
+ const { fetcher } = useBackendInstanceRequest();
+
+ const { data, error, isValidating } = useSWR<
+ HttpResponseOk<MerchantBackend.Orders.MerchantOrderStatusResponse>,
+ RequestError<MerchantBackend.ErrorDetail>
+ >([`/private/orders/${oderId}`], fetcher, {
+ refreshInterval: 0,
+ refreshWhenHidden: false,
+ revalidateOnFocus: false,
+ revalidateOnReconnect: false,
+ refreshWhenOffline: false,
+ });
+
+ if (isValidating) return { loading: true, data: data?.data };
+ if (data) return data;
+ if (error) return error.cause;
+ return { loading: true };
+}
+
+export interface InstanceOrderFilter {
+ paid?: YesOrNo;
+ refunded?: YesOrNo;
+ wired?: YesOrNo;
+ date?: Date;
+}
+
+export function useInstanceOrders(
+ args?: InstanceOrderFilter,
+ updateFilter?: (d: Date) => void,
+): HttpResponsePaginated<
+ MerchantBackend.Orders.OrderHistory,
+ MerchantBackend.ErrorDetail
+> {
+ const { orderFetcher } = useBackendInstanceRequest();
+
+ const [pageBefore, setPageBefore] = useState(1);
+ const [pageAfter, setPageAfter] = useState(1);
+
+ const totalAfter = pageAfter * PAGE_SIZE;
+ const totalBefore = args?.date ? pageBefore * PAGE_SIZE : 0;
+
+ /**
+ * FIXME: this can be cleaned up a little
+ *
+ * the logic of double query should be inside the orderFetch so from the hook perspective and cache
+ * is just one query and one error status
+ */
+ const {
+ data: beforeData,
+ error: beforeError,
+ isValidating: loadingBefore,
+ } = useSWR<
+ HttpResponseOk<MerchantBackend.Orders.OrderHistory>,
+ RequestError<MerchantBackend.ErrorDetail>
+ >(
+ [
+ `/private/orders`,
+ args?.paid,
+ args?.refunded,
+ args?.wired,
+ args?.date,
+ totalBefore,
+ ],
+ orderFetcher,
+ );
+ const {
+ data: afterData,
+ error: afterError,
+ isValidating: loadingAfter,
+ } = useSWR<
+ HttpResponseOk<MerchantBackend.Orders.OrderHistory>,
+ RequestError<MerchantBackend.ErrorDetail>
+ >(
+ [
+ `/private/orders`,
+ args?.paid,
+ args?.refunded,
+ args?.wired,
+ args?.date,
+ -totalAfter,
+ ],
+ orderFetcher,
+ );
+
+ //this will save last result
+ const [lastBefore, setLastBefore] = useState<
+ HttpResponse<
+ MerchantBackend.Orders.OrderHistory,
+ MerchantBackend.ErrorDetail
+ >
+ >({ loading: true });
+ const [lastAfter, setLastAfter] = useState<
+ HttpResponse<
+ MerchantBackend.Orders.OrderHistory,
+ MerchantBackend.ErrorDetail
+ >
+ >({ loading: true });
+ useEffect(() => {
+ if (afterData) setLastAfter(afterData);
+ if (beforeData) setLastBefore(beforeData);
+ }, [afterData, beforeData]);
+
+ if (beforeError) return beforeError.cause;
+ if (afterError) return afterError.cause;
+
+ // if the query returns less that we ask, then we have reach the end or beginning
+ const isReachingEnd = afterData && afterData.data.orders.length < totalAfter;
+ const isReachingStart =
+ args?.date === undefined ||
+ (beforeData && beforeData.data.orders.length < totalBefore);
+
+ const pagination = {
+ isReachingEnd,
+ isReachingStart,
+ loadMore: () => {
+ if (!afterData || isReachingEnd) return;
+ if (afterData.data.orders.length < MAX_RESULT_SIZE) {
+ setPageAfter(pageAfter + 1);
+ } else {
+ const from =
+ afterData.data.orders[afterData.data.orders.length - 1].timestamp.t_s;
+ if (from && from !== "never" && updateFilter)
+ updateFilter(new Date(from * 1000));
+ }
+ },
+ loadMorePrev: () => {
+ if (!beforeData || isReachingStart) return;
+ if (beforeData.data.orders.length < MAX_RESULT_SIZE) {
+ setPageBefore(pageBefore + 1);
+ } else if (beforeData) {
+ const from =
+ beforeData.data.orders[beforeData.data.orders.length - 1].timestamp
+ .t_s;
+ if (from && from !== "never" && updateFilter)
+ updateFilter(new Date(from * 1000));
+ }
+ },
+ };
+
+ const orders =
+ !beforeData || !afterData
+ ? []
+ : (beforeData || lastBefore).data.orders
+ .slice()
+ .reverse()
+ .concat((afterData || lastAfter).data.orders);
+ if (loadingAfter || loadingBefore) return { loading: true, data: { orders } };
+ if (beforeData && afterData) {
+ return { ok: true, data: { orders }, ...pagination };
+ }
+ return { loading: true };
+}