/*!
 * V4Fire Core
 * https://github.com/V4Fire/Core
 *
 * Released under the MIT license
 * https://github.com/V4Fire/Core/blob/master/LICENSE
 */

import { EventEmitter2 as EventEmitter } from 'eventemitter2';

import type { Socket } from 'core/socket';
import type { RequestResponseObject } from 'core/request';
import type { Provider, ProviderConstructor } from 'core/data/interface';

export const
	namespace = Symbol('Provider namespace'),
	providers = Object.createDict<ProviderConstructor>();

/**
 * Global event emitter to broadcast provider events
 */
export const emitter = new EventEmitter({
	maxListeners: 1e3,
	newListener: false,
	wildcard: true
});

export const
	instanceCache: Dictionary<Provider> = Object.createDict(),
	requestCache: Dictionary<Dictionary<RequestResponseObject>> = Object.createDict(),
	connectCache: Dictionary<Promise<Socket>> = Object.createDict();

export const queryMethods = Object.createDict({
	GET: true,
	HEAD: true
});

export const methodProperties = [
	'getMethod',
	'peekMethod',
	'addMethod',
	'updMethod',
	'delMethod'
];

export const urlProperties = [
	'baseURL',
	'advURL',
	'socketURL',
	'baseGetURL',
	'basePeekURL',
	'baseAddURL',
	'baseUpdURL',
	'baseDelURL'
];