/**
 * Utility to register editors and common namespace for keeping reference to all editor classes.
 */ import { Hooks } from '../core/hooks/index.mjs';
import { staticRegister } from '../utils/staticRegister.mjs';
import { throwWithCause } from '../helpers/errors.mjs';
const registeredEditorClasses = new WeakMap();
const { register, getItem, hasItem, getNames, getValues } = staticRegister('editors');
/**
 * @param {BaseEditor} editorClass The editor constructor.
 */ export function RegisteredEditor(editorClass) {
    const instances = {};
    const Clazz = editorClass;
    this.getConstructor = function() {
        return editorClass;
    };
    this.getInstance = function(hotInstance) {
        if (!(hotInstance.guid in instances)) {
            instances[hotInstance.guid] = new Clazz(hotInstance);
        }
        return instances[hotInstance.guid];
    };
    Hooks.getSingleton().add('afterDestroy', function() {
        instances[this.guid] = null;
    });
}
/**
 * Returns instance (singleton) of editor class.
 *
 * @param {string} name Name of an editor under which it has been stored.
 * @param {object} hotInstance Instance of Handsontable.
 * @returns {Function} Returns instance of editor.
 */ export function _getEditorInstance(name, hotInstance) {
    let editor;
    if (typeof name === 'function') {
        if (!registeredEditorClasses.get(name)) {
            _register(null, name);
        }
        editor = registeredEditorClasses.get(name);
    } else if (typeof name === 'string') {
        editor = getItem(name);
    } else {
        throwWithCause('Only strings and functions can be passed as "editor" parameter');
    }
    if (!editor) {
        throwWithCause(`No editor registered under name "${name}"`);
    }
    return editor.getInstance(hotInstance);
}
/**
 * Retrieve editor class.
 *
 * @param {string} name Editor identification.
 * @returns {Function} Returns editor class.
 */ function _getItem(name) {
    if (typeof name === 'function') {
        return name;
    }
    if (!hasItem(name)) {
        throwWithCause(`No registered editor found under "${name}" name`);
    }
    return getItem(name).getConstructor();
}
/**
 * Register editor class under specified name.
 *
 * @param {string} name Editor identification.
 * @param {Function} editorClass Editor class.
 */ function _register(name, editorClass) {
    if (name && typeof name !== 'string') {
        editorClass = name;
        name = editorClass.EDITOR_TYPE;
    }
    const editorWrapper = new RegisteredEditor(editorClass);
    if (typeof name === 'string') {
        register(name, editorWrapper);
    }
    registeredEditorClasses.set(editorClass, editorWrapper);
}
export { _register as registerEditor, _getItem as getEditor, _getEditorInstance as getEditorInstance, hasItem as hasEditor, getNames as getRegisteredEditorNames, getValues as getRegisteredEditors };
