import type { IUser, IUserEmail } from '@rocket.chat/core-typings';

import { settings } from '../../../settings/server';
import { getUserPreference, getURL } from '../../../utils/server';

const isVerifiedEmail = (me: IUser): false | IUserEmail | undefined => {
	if (!me || !Array.isArray(me.emails)) {
		return false;
	}

	return me.emails.find((email) => email.verified);
};

const getUserPreferences = async (me: IUser): Promise<Record<string, unknown>> => {
	const defaultUserSettingPrefix = 'Accounts_Default_User_Preferences_';
	const allDefaultUserSettings = settings.getByRegexp(new RegExp(`^${defaultUserSettingPrefix}.*$`));

	const accumulator: Record<string, any> = {};
	for await (const [key] of allDefaultUserSettings) {
		const settingWithoutPrefix = key.replace(defaultUserSettingPrefix, ' ').trim();
		accumulator[settingWithoutPrefix] = await getUserPreference(me, settingWithoutPrefix);
	}

	return accumulator;
};

export async function getUserInfo(me: IUser): Promise<
	IUser & {
		email?: string;
		settings?: {
			profile: Record<string, unknown>;
			preferences: unknown;
		};
		avatarUrl: string;
	}
> {
	const verifiedEmail = isVerifiedEmail(me);

	const userPreferences = me.settings?.preferences ?? {};

	return {
		...me,
		email: verifiedEmail ? verifiedEmail.address : undefined,
		settings: {
			profile: {},
			preferences: {
				...(await getUserPreferences(me)),
				...userPreferences,
			},
		},
		avatarUrl: getURL(`/avatar/${me.username}`, { cdn: false, full: true }),
	};
}