Feature/cleanup metadata related logic (#657)

* Remove unnecessary parameter from "requestUpdateServerMetadata"

* Streamline updating metadata server settings

* Move metadata related logic

src/lib/metadata/metadataServerSettings.ts

@@ -0,0 +1,104 @@
+/*
+ * 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 {
+    AllowedMetadataValueTypes,
+    AppMetadataKeys,
+    Metadata,
+    MetadataServerSettingKeys,
+    MetadataServerSettings,
+} from '@/typings.ts';
+import { requestManager } from '@/lib/requests/RequestManager.ts';
+import { convertFromGqlMeta, getMetadataFrom, requestUpdateServerMetadata } from '@/lib/metadata/metadata.ts';
+import { jsonSaveParse } from '@/util/HelperFunctions.ts';
+import { DEFAULT_DEVICE } from '@/util/device.ts';
+import { defaultPromiseErrorHandler } from '@/util/defaultPromiseErrorHandler.ts';
+
+export const getDefaultSettings = (): MetadataServerSettings => ({
+    // downloads
+    deleteChaptersManuallyMarkedRead: false,
+    deleteChaptersWhileReading: 0,
+    deleteChaptersWithBookmark: false,
+    downloadAheadLimit: 0,
+
+    // library
+    showAddToLibraryCategorySelectDialog: true,
+    ignoreFilters: false,
+    removeMangaFromCategories: false,
+
+    // client
+    devices: [DEFAULT_DEVICE],
+
+    // migration
+    includeChapters: true,
+    includeCategories: true,
+    deleteChapters: true,
+});
+
+export const convertSettingsToMetadata = (
+    settings: Partial<MetadataServerSettings>,
+): Metadata<string, AllowedMetadataValueTypes> => ({
+    ...settings,
+    devices: JSON.stringify(settings.devices),
+});
+
+export const convertMetadataToSettings = (
+    metadata: Partial<Metadata<AppMetadataKeys, AllowedMetadataValueTypes>>,
+): MetadataServerSettings =>
+    ({
+        ...getDefaultSettings(),
+        ...(metadata as unknown as MetadataServerSettings),
+        devices: jsonSaveParse<string[]>((metadata.devices as string) ?? '') ?? getDefaultSettings().devices,
+    }) satisfies MetadataServerSettings;
+
+const getMetadataServerSettingsWithDefaultFallback = (
+    meta?: Metadata,
+    defaultSettings: MetadataServerSettings = getDefaultSettings(),
+    applyMetadataMigration: boolean = true,
+): MetadataServerSettings =>
+    convertMetadataToSettings(
+        getMetadataFrom({ meta }, convertSettingsToMetadata(defaultSettings), applyMetadataMigration),
+    );
+export const useMetadataServerSettings = (): {
+    metadata?: Metadata;
+    settings: MetadataServerSettings;
+    loading: boolean;
+} => {
+    const { data, loading } = requestManager.useGetGlobalMeta();
+    const metadata = convertFromGqlMeta(data?.metas.nodes);
+    const settings = getMetadataServerSettingsWithDefaultFallback(metadata);
+
+    return { metadata, settings, loading };
+};
+
+export const getMetadataServerSettings = async (): Promise<MetadataServerSettings> => {
+    const { data, error } = await requestManager.getGlobalMeta().response;
+
+    if (error) {
+        throw error;
+    }
+
+    const metadata = convertFromGqlMeta(data?.metas.nodes);
+    return getMetadataServerSettingsWithDefaultFallback(metadata);
+};
+
+export const updateMetadataServerSettings = async <
+    Settings extends MetadataServerSettingKeys = MetadataServerSettingKeys,
+    Setting extends Settings = Settings,
+>(
+    setting: Setting,
+    value: MetadataServerSettings[Setting],
+): Promise<void[]> =>
+    requestUpdateServerMetadata([[setting, convertSettingsToMetadata({ [setting]: value })[setting]]]);
+
+export const createUpdateMetadataServerSettings =
+    <Settings extends MetadataServerSettingKeys>(
+        handleError: (error: any) => void = defaultPromiseErrorHandler('createUpdateMetadataServerSettings'),
+    ): ((...args: Parameters<typeof updateMetadataServerSettings<Settings>>) => Promise<void | void[]>) =>
+    (setting, value) =>
+        updateMetadataServerSettings(setting, value).catch(handleError);