/*
 * 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, MetadataServerSettings } from '@/typings';
import { requestManager } from '@/lib/requests/RequestManager.ts';
import { convertFromGqlMeta, getMetadataFrom } from '@/util/metadata';
import { jsonSaveParse } from '@/util/HelperFunctions.ts';
import { DEFAULT_DEVICE } from '@/util/device.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],
});

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);
};