// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0

import JsCookie from 'js-cookie';

import {
	CookieStorageData,
	KeyValueStorageInterface,
	SameSite,
} from '../types';

export class CookieStorage implements KeyValueStorageInterface {
	path: string;
	domain?: string;
	expires?: number;
	sameSite?: SameSite;
	secure?: boolean;

	constructor(data: CookieStorageData = {}) {
		const { path, domain, expires, sameSite, secure } = data;
		this.domain = domain;
		this.path = path || '/';
		this.expires = Object.prototype.hasOwnProperty.call(data, 'expires')
			? expires
			: 365;
		this.secure = Object.prototype.hasOwnProperty.call(data, 'secure')
			? secure
			: true;

		if (Object.prototype.hasOwnProperty.call(data, 'sameSite')) {
			if (!sameSite || !['strict', 'lax', 'none'].includes(sameSite)) {
				throw new Error(
					'The sameSite value of cookieStorage must be "lax", "strict" or "none".',
				);
			}
			if (sameSite === 'none' && !this.secure) {
				throw new Error(
					'sameSite = None requires the Secure attribute in latest browser versions.',
				);
			}
			this.sameSite = sameSite;
		}
	}

	async setItem(key: string, value: string) {
		JsCookie.set(key, value, this.getData());
	}

	async getItem(key: string) {
		const item = JsCookie.get(key);

		return item ?? null;
	}

	async removeItem(key: string) {
		JsCookie.remove(key, this.getData());
	}

	async clear() {
		const cookie = JsCookie.get();
		const promises = Object.keys(cookie).map(key => this.removeItem(key));
		await Promise.all(promises);
	}

	private getData(): CookieStorageData {
		return {
			path: this.path,
			expires: this.expires,
			domain: this.domain,
			secure: this.secure,
			...(this.sameSite && { sameSite: this.sameSite }),
		};
	}
}