require( '../ext.CodeMirror.data.js' );

/**
 * @module ext.CodeMirror.visualEditor.init
 * @description
 * Main entry point for CodeMirror initialization in VisualEditor.
 *
 * The init module is loaded by Hooks.php and is not intended for external use.
 * Use {@link module:ext.CodeMirror.v6.visualEditor ext.CodeMirror.v6.visualEditor} instead.
 *
 * @see module:ext.CodeMirror.v6.visualEditor
 * @internal
 */

// This is hacky: mw.hook ensures that new handlers would be fired immediately if they are
// added after the event. We are using this feature to load the actual module via a callback
// when this module is loaded by VE.
//
// TODO: Change the PluginModules in extension.json when fully migrated to v6 and drop this.
mw.hook( 've.loadModules' ).add( ( addPlugin ) => {
	const urlParams = new URLSearchParams( window.location.search );
	const shouldUseV6 = mw.config.get( 'extCodeMirrorConfig' ).useV6 ||
		urlParams.get( 'cm6enable' ) ||
		mw.user.options.get( 'codemirror-beta-feature-enable' ) === '1';

	// VE would wait for plugin callbacks to resolve before initialisation.
	if ( shouldUseV6 ) {
		addPlugin( () => mw.loader.using( 'ext.CodeMirror.v6.visualEditor' ) );
	} else {
		addPlugin( () => mw.loader.using( 'ext.CodeMirror.visualEditor' ) );
	}
} );