From 8601f35f6e297d45140d83ddadefca8a9bdc6ba2 Mon Sep 17 00:00:00 2001
From: Bogdan <mynameisbogdan@users.noreply.github.com>
Date: Sat, 15 Jun 2024 19:18:16 +0300
Subject: [PATCH] New: Display stats for all series in index footer

---
 .../src/Series/Index/SeriesIndexFooter.tsx    | 162 +++++++++++++-----
 1 file changed, 121 insertions(+), 41 deletions(-)

diff --git a/frontend/src/Series/Index/SeriesIndexFooter.tsx b/frontend/src/Series/Index/SeriesIndexFooter.tsx
index dc0a4a07f..fe3b545b9 100644
--- a/frontend/src/Series/Index/SeriesIndexFooter.tsx
+++ b/frontend/src/Series/Index/SeriesIndexFooter.tsx
@@ -1,18 +1,40 @@
 import classNames from 'classnames';
-import React from 'react';
+import React, { useMemo } from 'react';
 import { useSelector } from 'react-redux';
 import { createSelector } from 'reselect';
 import { ColorImpairedConsumer } from 'App/ColorImpairedContext';
 import SeriesAppState from 'App/State/SeriesAppState';
 import DescriptionList from 'Components/DescriptionList/DescriptionList';
 import DescriptionListItem from 'Components/DescriptionList/DescriptionListItem';
+import { Statistics } from 'Series/Series';
+import createAllSeriesSelector from 'Store/Selectors/createAllSeriesSelector';
 import createClientSideCollectionSelector from 'Store/Selectors/createClientSideCollectionSelector';
 import createDeepEqualSelector from 'Store/Selectors/createDeepEqualSelector';
 import formatBytes from 'Utilities/Number/formatBytes';
 import translate from 'Utilities/String/translate';
 import styles from './SeriesIndexFooter.css';
 
-function createUnoptimizedSelector() {
+interface SeriesStatistics {
+  monitored: boolean;
+  status: string;
+  statistics: Statistics;
+}
+
+function createAllSeriesStatisticsSelector() {
+  return createSelector(createAllSeriesSelector(), (series) => {
+    return series.map((s) => {
+      const { monitored, status, statistics } = s;
+
+      return {
+        monitored,
+        status,
+        statistics,
+      };
+    });
+  });
+}
+
+function createUnoptimizedSeriesSelector() {
   return createSelector(
     createClientSideCollectionSelector('series', 'seriesIndex'),
     (series: SeriesAppState) => {
@@ -31,47 +53,75 @@ function createUnoptimizedSelector() {
 
 function createSeriesSelector() {
   return createDeepEqualSelector(
-    createUnoptimizedSelector(),
+    createUnoptimizedSeriesSelector(),
     (series) => series
   );
 }
 
+function calculateSeriesStatistics(series: SeriesStatistics[]) {
+  return series.reduce(
+    (acc, s) => {
+      const { statistics = {} as Statistics } = s;
+      const {
+        episodeCount = 0,
+        episodeFileCount = 0,
+        sizeOnDisk = 0,
+      } = statistics;
+
+      acc.episodes += episodeCount;
+      acc.episodeFiles += episodeFileCount;
+      acc.totalFileSize += sizeOnDisk;
+
+      if (s.status === 'ended') {
+        acc.ended++;
+      } else {
+        acc.continuing++;
+      }
+
+      if (s.monitored) {
+        acc.monitored++;
+      }
+
+      return acc;
+    },
+    {
+      episodes: 0,
+      episodeFiles: 0,
+      totalFileSize: 0,
+      ended: 0,
+      continuing: 0,
+      monitored: 0,
+    }
+  );
+}
+
 export default function SeriesIndexFooter() {
+  const allSeries = useSelector(createAllSeriesStatisticsSelector());
   const series = useSelector(createSeriesSelector());
+
+  const allCount = allSeries.length;
   const count = series.length;
-  let episodes = 0;
-  let episodeFiles = 0;
-  let ended = 0;
-  let continuing = 0;
-  let monitored = 0;
-  let totalFileSize = 0;
 
-  series.forEach((s) => {
-    const {
-      statistics = { episodeCount: 0, episodeFileCount: 0, sizeOnDisk: 0 },
-    } = s;
+  const {
+    episodes: allEpisodes,
+    episodeFiles: allEpisodeFiles,
+    ended: allEnded,
+    continuing: allContinuing,
+    monitored: allMonitored,
+    totalFileSize: allTotalFileSize,
+  } = useMemo(() => calculateSeriesStatistics(allSeries), [allSeries]);
 
-    const {
-      episodeCount = 0,
-      episodeFileCount = 0,
-      sizeOnDisk = 0,
-    } = statistics;
+  const {
+    episodes,
+    episodeFiles,
+    ended,
+    continuing,
+    monitored,
+    totalFileSize,
+  } = useMemo(() => calculateSeriesStatistics(series), [series]);
 
-    episodes += episodeCount;
-    episodeFiles += episodeFileCount;
-
-    if (s.status === 'ended') {
-      ended++;
-    } else {
-      continuing++;
-    }
-
-    if (s.monitored) {
-      monitored++;
-    }
-
-    totalFileSize += sizeOnDisk;
-  });
+  const unmonitored = count - monitored;
+  const allUnmonitored = allCount - allMonitored;
 
   return (
     <ColorImpairedConsumer>
@@ -132,44 +182,74 @@ export default function SeriesIndexFooter() {
 
             <div className={styles.statistics}>
               <DescriptionList>
-                <DescriptionListItem title={translate('Series')} data={count} />
+                <DescriptionListItem
+                  title={translate('Series')}
+                  data={count === allCount ? count : `${count}/${allCount}`}
+                />
 
-                <DescriptionListItem title={translate('Ended')} data={ended} />
+                <DescriptionListItem
+                  title={translate('Ended')}
+                  data={count === allCount ? ended : `${ended}/${allEnded}`}
+                />
 
                 <DescriptionListItem
                   title={translate('Continuing')}
-                  data={continuing}
+                  data={
+                    count === allCount
+                      ? continuing
+                      : `${continuing}/${allContinuing}`
+                  }
                 />
               </DescriptionList>
 
               <DescriptionList>
                 <DescriptionListItem
                   title={translate('Monitored')}
-                  data={monitored}
+                  data={
+                    count === allCount
+                      ? monitored
+                      : `${monitored}/${allMonitored}`
+                  }
                 />
 
                 <DescriptionListItem
                   title={translate('Unmonitored')}
-                  data={count - monitored}
+                  data={
+                    count === allCount
+                      ? unmonitored
+                      : `${unmonitored}/${allUnmonitored}`
+                  }
                 />
               </DescriptionList>
 
               <DescriptionList>
                 <DescriptionListItem
                   title={translate('Episodes')}
-                  data={episodes}
+                  data={
+                    count === allCount ? episodes : `${episodes}/${allEpisodes}`
+                  }
                 />
 
                 <DescriptionListItem
                   title={translate('Files')}
-                  data={episodeFiles}
+                  data={
+                    count === allCount
+                      ? episodeFiles
+                      : `${episodeFiles}/${allEpisodeFiles}`
+                  }
                 />
               </DescriptionList>
 
               <DescriptionList>
                 <DescriptionListItem
                   title={translate('TotalFileSize')}
-                  data={formatBytes(totalFileSize)}
+                  data={
+                    count === allCount
+                      ? formatBytes(totalFileSize)
+                      : `${formatBytes(totalFileSize)}/${formatBytes(
+                          allTotalFileSize
+                        )}`
+                  }
                 />
               </DescriptionList>
             </div>