[taler-wallet-core] 02/02: wip: #7752

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sebasjm pushed a commit to branch master
in repository wallet-core.

commit 055645e17aa9424f299aa04f686de7574ab437c7
Author: Sebastian <sebasjm@gmail.com>
AuthorDate: Mon Dec 11 15:22:07 2023 -0300

    wip: #7752
---
 packages/demobank-ui/src/Routing.tsx               |   5 +
 packages/demobank-ui/src/pages/DownloadStats.tsx   | 122 +++++++++++++++++++++
 packages/demobank-ui/src/pages/admin/AdminHome.tsx |   7 +-
 3 files changed, 133 insertions(+), 1 deletion(-)

diff --git a/packages/demobank-ui/src/Routing.tsx 
b/packages/demobank-ui/src/Routing.tsx
index f8a625621..711b7f871 100644
--- a/packages/demobank-ui/src/Routing.tsx
+++ b/packages/demobank-ui/src/Routing.tsx
@@ -38,6 +38,7 @@ import { WireTransfer } from "./pages/WireTransfer.js";
 import { AccountPage } from "./pages/AccountPage/index.js";
 import { useSettingsContext } from "./context/settings.js";
 import { useBankCoreApiContext } from "./context/config.js";
+import { DownloadStats } from "./pages/DownloadStats.js";
 
 export function Routing(): VNode {
   const history = createHashHistory();
@@ -119,6 +120,10 @@ export function Routing(): VNode {
           path="/public-accounts"
           component={() => <PublicHistoriesPage />}
         />
+        <Route
+          path="/download-stats"
+          component={() => <DownloadStats />}
+        />
 
         <Route
           path="/new-account"
diff --git a/packages/demobank-ui/src/pages/DownloadStats.tsx 
b/packages/demobank-ui/src/pages/DownloadStats.tsx
new file mode 100644
index 000000000..cd3e6d875
--- /dev/null
+++ b/packages/demobank-ui/src/pages/DownloadStats.tsx
@@ -0,0 +1,122 @@
+/*
+ This file is part of GNU Taler
+ (C) 2022 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 { AccessToken, Logger, RefreshReason, TalerCoreBankHttpClient, 
TalerCorebankApi, TalerError } from "@gnu-taler/taler-util";
+import { useTranslationContext } from "@gnu-taler/web-util/browser";
+import { Fragment, VNode, h } from "preact";
+import { useState } from "preact/hooks";
+import { Loading } from "@gnu-taler/web-util/browser";
+import { Transactions } from "../components/Transactions/index.js";
+import { usePublicAccounts } from "../hooks/access.js";
+import { useBackendState } from "../hooks/backend.js";
+import { useBankCoreApiContext } from "../context/config.js";
+import { getTimeframesForDate } from "./admin/AdminHome.js";
+
+const logger = new Logger("PublicHistoriesPage");
+
+interface Props { }
+
+/** 
+ * Show histories of public accounts.
+ */
+export function DownloadStats({ }: Props): VNode {
+  const { i18n } = useTranslationContext();
+
+  const { state: credentials } = useBackendState();
+  const creds = credentials.status !== "loggedIn" || 
!credentials.isUserAdministrator ? undefined : credentials
+  const { api, config } = useBankCoreApiContext();
+
+  const [state, setState] = useState<number>()
+
+  if (!creds) {
+    return <div>only admin can download stats</div>
+  }
+
+  return (
+    <Fragment>
+      <h1 class="nav">{i18n.str`Stats`}</h1>
+      <button type="button"
+        class="inline-flex items-center  disabled:opacity-50 
disabled:cursor-default cursor-pointer rounded-md bg-indigo-600 px-3 py-2 
text-sm font-semibold text-white shadow-sm hover:bg-indigo-500 
focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 
focus-visible:outline-indigo-600"
+        onClick={() => {
+          fetchAllStatus(api, creds.token, new Date(), (p, total) => {
+            console.log("doing...", total - p)
+            setState(total - p)
+          })
+        }}
+      >
+        start
+      </button>
+      progress {state}
+    </Fragment>
+  );
+}
+
+
+async function fetchAllStatus(api: TalerCoreBankHttpClient, token: 
AccessToken, reference: Date, progres: (current: number, total: number) => 
void) {
+  const allMetrics = [
+    TalerCorebankApi.MonitorTimeframeParam.day,
+    TalerCorebankApi.MonitorTimeframeParam.hour,
+    // TalerCorebankApi.MonitorTimeframeParam.month,
+    // TalerCorebankApi.MonitorTimeframeParam.year,
+    // TalerCorebankApi.MonitorTimeframeParam.decade,
+  ]
+  const allFrames = allMetrics.map(timeframe => ({
+    timeframe, moment: getTimeframesForDate(reference, timeframe)
+  }))
+
+  type Data = {
+    previous: TalerCorebankApi.MonitorResponse;
+    current: TalerCorebankApi.MonitorResponse;
+  }
+  const total = allFrames.length
+  
+  const dataResolvers = allFrames.map((frame, index) => async function 
getData(): Promise<Data | undefined> {
+    const previous = await api.getMonitor(token, {
+      timeframe: frame.timeframe,
+      which: frame.moment.previous
+    })
+    await delay()
+    if (previous.type !== "ok") return undefined;
+    const current = await api.getMonitor(token, {
+      timeframe: frame.timeframe,
+      which: frame.moment.current
+    })
+    await delay()
+    if (current.type !== "ok") return undefined;
+    return { previous: previous.body, current: current.body }
+  });
+
+  const csv = await dataResolvers.reduce(async (prev, resolver, index) => {
+    const accumulatedMap = await prev
+    console.log(index)
+    progres(index, total)
+    const data = await resolver()
+    if (!data) return accumulatedMap
+
+    const metricName = 
TalerCorebankApi.MonitorTimeframeParam[allMetrics[index]]
+    accumulatedMap[metricName] = data
+    return accumulatedMap
+  }, Promise.resolve({} as Record<string, Data>))
+  progres(total, total)
+  console.log(csv)
+}
+async function delay() {
+  return new Promise((res, rej) => {
+    setTimeout(() => {
+      res(null);
+    }, 1000)
+  })
+}
\ No newline at end of file
diff --git a/packages/demobank-ui/src/pages/admin/AdminHome.tsx 
b/packages/demobank-ui/src/pages/admin/AdminHome.tsx
index 18e88a409..9c6e6cde6 100644
--- a/packages/demobank-ui/src/pages/admin/AdminHome.tsx
+++ b/packages/demobank-ui/src/pages/admin/AdminHome.tsx
@@ -54,7 +54,7 @@ function getDateForTimeframe(which: number, timeframe: 
TalerCorebankApi.MonitorT
   assertUnreachable(timeframe)
 }
 
-function getTimeframesForDate(time: Date, timeframe: 
TalerCorebankApi.MonitorTimeframeParam): { current: number, previous: number } {
+export function getTimeframesForDate(time: Date, timeframe: 
TalerCorebankApi.MonitorTimeframeParam): { current: number, previous: number } {
   switch (timeframe) {
     case TalerCorebankApi.MonitorTimeframeParam.hour: return {
       current: getHours(sub(time, { hours: 1 })),
@@ -183,6 +183,11 @@ function Metrics(): VNode {
         />
       </div>
     </dl>
+    <div class="flex justify-end mt-2">
+      <a href="#/download-stats" class="link"><i18n.Translate>
+        download stats as csv
+      </i18n.Translate></a>
+    </div>
   </Fragment>
 
 }

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