/**
 * Custom event classes for roundabout property changes
 * Following best practices: use custom Event classes instead of CustomEvent with detail objects
 */

/**
 * Event fired when a property changes on the view model
 */
export class PropertyChangeEvent extends Event {
    static eventName = 'propertyChange';
    
    constructor(
        public propertyName: string,
        public oldValue: any,
        public newValue: any
    ) {
        super(propertyName);
    }
}

/**
 * Interface for PropertyChangeEvent (for type safety)
 */
export interface IPropertyChangeEvent {
    propertyName: string;
    oldValue: any;
    newValue: any;
}

/**
 * Event fired by compacts when using dispatch pattern
 */
export class CompactDispatchEvent extends Event {
    constructor(
        public eventName: string,
        public value: any
    ) {
        super(eventName);
    }
}

/**
 * Event name dispatched on the vm (if it's an EventTarget) when roundabout
 * initialization is complete — propagator created, all processors wired up.
 */
export const ROUNDABOUT_READY_EVENT = 'roundabout-ready';