Feature/modify download settings (#429)

* [Codegen] Update settings fragment

* Extract logic to change a number setting

* Show slider for global update interval setting

* Add download settings

src/components/settings/downloads/DownloadAheadSetting.tsx

@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { useTranslation } from 'react-i18next';
+import { List, ListItem, ListItemText, Switch } from '@mui/material';
+import ListItemSecondaryAction from '@mui/material/ListItemSecondaryAction';
+import { useCallback } from 'react';
+import { requestManager } from '@/lib/requests/RequestManager.ts';
+import { NumberSetting } from '@/components/settings/NumberSetting.tsx';
+
+const DEFAULT_LIMIT = 5;
+const MIN_LIMIT = 2;
+const MAX_LIMIT = 10;
+
+export const DownloadAheadSetting = () => {
+    const { t } = useTranslation();
+
+    const { data } = requestManager.useGetServerSettings();
+    const downloadAheadLimit = data?.settings.autoDownloadAheadLimit ?? 0;
+    const shouldDownloadAhead = !!downloadAheadLimit;
+    const [mutateSettings] = requestManager.useUpdateServerSettings();
+
+    const updateSetting = useCallback((autoDownloadAheadLimit: number) => {
+        mutateSettings({ variables: { input: { settings: { autoDownloadAheadLimit } } } });
+    }, []);
+
+    const setDoAutoUpdates = (enable: boolean) => {
+        const globalUpdateInterval = enable ? DEFAULT_LIMIT : 0;
+        updateSetting(globalUpdateInterval);
+    };
+
+    return (
+        <List>
+            <ListItem>
+                <ListItemText primary={t('download.settings.download_ahead.label.while_reading')} />
+                <ListItemSecondaryAction>
+                    <Switch
+                        edge="end"
+                        checked={shouldDownloadAhead}
+                        onChange={(e) => setDoAutoUpdates(e.target.checked)}
+                    />
+                </ListItemSecondaryAction>
+            </ListItem>
+            {shouldDownloadAhead ? (
+                <NumberSetting
+                    settingTitle={t('download.settings.download_ahead.label.unread_chapters_to_download')}
+                    settingValue={t('download.settings.download_ahead.label.value', {
+                        chapters: downloadAheadLimit,
+                        count: downloadAheadLimit,
+                    })}
+                    value={downloadAheadLimit}
+                    minValue={MIN_LIMIT}
+                    maxValue={MAX_LIMIT}
+                    defaultValue={DEFAULT_LIMIT}
+                    showSlider
+                    dialogTitle={t('download.settings.download_ahead.label.unread_chapters_to_download')}
+                    valueUnit={t('chapter.title')}
+                    handleUpdate={updateSetting}
+                />
+            ) : null}
+        </List>
+    );
+};