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import {RESOURCES_ERR} from "../../app/error/error-codes.js";
import {iCPSError} from "../../app/error/error.js";
import {iCPSAppOptions} from "../../app/factory.js";
import {EventManager, ListenerFunction} from "./event-manager.js";
import {iCPSEvent, iCPSEventLog} from "./events-types.js";
import {NetworkManager} from "./network-manager.js";
import {ResourceManager} from "./resource-manager.js";
import {Validator} from "./validator.js";
/**
* This namespace handles the static access to the singleton functions of the ResourceManager, NetworkManager, Validator and EventManager
*/
export namespace Resources {
/**
* The singleton instances of the shared resources
*/
export let _instances: Resources.Types.Instances;
/**
* Static package info
*/
export const PackageInfo: Resources.Types.PackageInfo = {
name: PackageData.name,
version: PackageData.version,
description: PackageData.description,
};
/**
* Prepares the global singleton instances. This includes the ResourceManager, NetworkManager, Validator and EventManager.
* This function should only be called once.
* @param appOptions - The parsed app options
* @returns The singleton instances
* @throws If the function is called with an already initiated singleton
*/
export function setup(appOptions: iCPSAppOptions): Resources.Types.Instances {
if (_instances) {
throw new iCPSError(RESOURCES_ERR.ALREADY_INITIATED);
}
_instances = {} as Resources.Types.Instances; // Creating one-by one, so they are available as soon as possible
_instances.event = new EventManager();
_instances.validator = new Validator();
_instances.manager = new ResourceManager(appOptions);
_instances.network = new NetworkManager(appOptions);
return _instances;
}
/**
* @returns The singleton instances of the shared resources
* @throws If the function is called before the singleton is initiated
*/
export function instances(): Resources.Types.Instances {
if (!_instances) {
throw new iCPSError(RESOURCES_ERR.NOT_INITIATED);
}
return _instances;
}
/**
* @returns The singleton instances of the shared event manager
* @throws If the function is called before the singleton is initiated
*/
export function event(): EventManager {
const {event} = instances();
if (!event) {
throw new iCPSError(RESOURCES_ERR.EVENT_NOT_INITIATED);
}
return event;
}
/**
* @returns The singleton instances of the shared network manager
* @throws If the function is called before the singleton is initiated
*/
export function network(): NetworkManager {
const {network} = instances();
if (!network) {
throw new iCPSError(RESOURCES_ERR.NETWORK_NOT_INITIATED);
}
return network;
}
/**
* @returns The singleton instances of the shared resource manager
* @throws If the function is called before the singleton is initiated
*/
export function manager(): ResourceManager {
const {manager} = instances();
if (!manager) {
throw new iCPSError(RESOURCES_ERR.RESOURCE_NOT_INITIATED);
}
return manager;
}
/**
* @returns The singleton instances of the shared validator
* @throws If the function is called before the singleton is initiated
*/
export function validator(): Validator {
const {validator} = instances();
if (!validator) {
throw new iCPSError(RESOURCES_ERR.VALIDATOR_NOT_INITIATED);
}
return validator;
}
/**
* Returns a logger interface, that allows emitting log events to the event bus by providing a source object
* Used to log messages associated to the source object
* @param source - The source of the log message - either an object or a string
* @returns The logger interface
*/
export function logger(source: any | string): Resources.Types.Logger {
const format = function (...args: unknown[]): string {
return args.map(arg => String(arg)).join(` `);
};
return {
log(...args: any[]) {
Resources.event().emit(iCPSEventLog.INFO, source, format(args));
},
debug(...args: any[]) {
Resources.event().emit(iCPSEventLog.DEBUG, source, format(args));
},
info(...args: any[]) {
Resources.event().emit(iCPSEventLog.INFO, source, format(args));
},
warn(...args: any[]) {
Resources.event().emit(iCPSEventLog.WARN, source, format(args));
},
error(...args: any[]) {
Resources.event().emit(iCPSEventLog.ERROR, source, format(args));
},
};
}
/**
* Returns an event interface, that allows listening to events emitted on the event bus, while binding the listener to the registry
* Used to manage listeners for the listener object
* @param listenerObject - The source of the registration request, used to track the listeners and enable cleanup
* @returns The events interface
*/
export function events(listenerObject: any): Resources.Types.Events {
return {
on(event: iCPSEvent, listener: ListenerFunction) {
Resources.event().on(listenerObject, event, listener);
return Resources.events(listenerObject); // Returning for chaining
},
once(event: iCPSEvent, listener: ListenerFunction) {
Resources.event().once(listenerObject, event, listener);
return Resources.events(listenerObject); // Returning for chaining
},
removeListeners(event?: iCPSEvent) {
Resources.event().removeListenersFromRegistry(listenerObject, event);
return Resources.events(listenerObject); // Returning for chaining
},
};
}
/**
* Emits an event on the central event bus
* @param event - The event to emit
* @param args - Optional arguments to pass to the event
* @returns True if the event had listeners
*/
export function emit(event: iCPSEvent, ...args: any[]): boolean {
return Resources.event().emit(event, ...args);
}
/**
* Typing namespace
*/
export namespace Types {
/**
* Type holding all the singleton instances
*/
export type Instances = {
/**
* The resource manager instance
*/
manager: ResourceManager,
/**
* The network manager instance
*/
network: NetworkManager,
/**
* The validator instance
*/
validator: Validator,
/**
* The event manager instance
*/
event: EventManager,
}
/**
* Package Metadata
*/
export type PackageInfo = {
/**
* The name of this package
*/
name: string,
/**
* The version of this package
*/
version: string,
/**
* A short description of this package
*/
description: string,
}
/**
* Interface to logger event bus, with a source bound to it
*/
export type Logger = {
/**
* Logs a message to the event bus
* @param args - The arguments to log
*/
log: (...args: any[]) => void,
/**
* Logs a debug message to the event bus
* @param args - The arguments to log
*/
debug: (...args: any[]) => void,
/**
* Logs an info message to the event bus
* @param args - The arguments to log
*/
info: (...args: any[]) => void,
/**
* Logs a warn message to the event bus
* @param args - The arguments to log
*/
warn: (...args: any[]) => void,
/**
* Logs an error message to the event bus
* @param args - The arguments to log
*/
error: (...args: any[]) => void,
}
/**
* Interface to listener functions of the event bus, with a listener bound to it
*/
export type Events = {
/**
* Registers an event listener to the event bus
* @param event - The event to listen to
* @param listener - The listener function to call upon the event
* @returns This instance for chaining
*/
on: (event: iCPSEvent, listener: ListenerFunction) => Resources.Types.Events,
/**
* Registers an one-time event listener to the event bus
* @param event - The event to listen to
* @param listener - The listener function to call upon the event
* @returns This instance for chaining
*/
once: (event: iCPSEvent, listener: ListenerFunction) => Resources.Types.Events,
/**
* Removes all listeners from the source from the event bus
* @param event - Optional event to remove listeners for - otherwise all will be removed
*/
removeListeners: (event?: iCPSEvent) => Resources.Types.Events,
}
/**
* Possible regions for this tool to operate in
*/
export enum Region {
/**
* Will use icloud.com
*/
WORLD = `world`,
/**
* Will use icloud.com.cn
*/
CHINA = `china`,
}
}
} |