import {StringWrapper} from 'angular2/src/core/facade/lang';

export const EVENT_TARGET_SEPARATOR = ':';

export class EventConfig {

constructor(public fieldName: string, public eventName: string, public isLongForm: boolean) {}

static parse(eventConfig: string): EventConfig {

var fieldName = eventConfig, eventName = eventConfig, isLongForm = false;

var separatorIdx = eventConfig.indexOf(EVENT_TARGET_SEPARATOR);

if (separatorIdx > -1) {

// long format: 'fieldName: eventName'

fieldName = StringWrapper.substring(eventConfig, 0, separatorIdx).trim();

eventName = StringWrapper.substring(eventConfig, separatorIdx + 1).trim();

isLongForm = true;

}

return new EventConfig(fieldName, eventName, isLongForm);

}

getFullName(): string {

return this.isLongForm ? `${this.fieldName}${EVENT_TARGET_SEPARATOR}${this.eventName}` :

this.eventName;

}

}