const AssetMenu = require('./asset.js');
const LoggerMenu = require('./logger.js');
const PhysicalPositionMenu = require('./physicalPosition.js');

class MenuManager {

    constructor() {
        this.registeredMenus = new Map(); // Store menu type instances
        this.registerMenu('asset', new AssetMenu()); // Register asset menu by default
        this.registerMenu('logger', new LoggerMenu()); // Register logger menu by default
        this.registerMenu('position', new PhysicalPositionMenu()); // Register position menu by default
    }

    /**
     * Register a menu type with its handler instance
     * @param {string} menuType - The type of menu (e.g., 'asset', 'logging')
     * @param {object} menuHandler - The menu handler instance
     */
    registerMenu(menuType, menuHandler) {
        this.registeredMenus.set(menuType, menuHandler);
    }

    /**
     * Create a complete endpoint script with data and initialization functions
     * @param {string} nodeName - The name of the node type
     * @param {Array<string>} menuTypes - Array of menu types to include
     * @returns {string} Complete JavaScript code to serve
     */
    createEndpoint(nodeName, menuTypes) {
        // 1. Collect all menu data
        const menuData = {};
        menuTypes.forEach(menuType => {
            const handler = this.registeredMenus.get(menuType);
            if (handler && typeof handler.getAllMenuData === 'function') {
                menuData[menuType] = handler.getAllMenuData();
            }
        });

        // Generate HTML injection code
        const htmlInjections = menuTypes.map(type => {
            const menu = this.registeredMenus.get(type);
            if (menu && menu.getHtmlInjectionCode) {
                return menu.getHtmlInjectionCode(nodeName);
            }
            return '';
        }).join('\n');

        // 2. Collect all client initialization code
        const initFunctions = [];
        menuTypes.forEach(menuType => {
            const handler = this.registeredMenus.get(menuType);
            if (handler && typeof handler.getClientInitCode === 'function') {
                initFunctions.push(handler.getClientInitCode(nodeName));
            }
        });

        // 3. Convert menu data to JSON
        const menuDataJSON = JSON.stringify(menuData, null, 2);

        // 4. Assemble the complete script
        return `
        // Create the namespace structure
        window.EVOLV = window.EVOLV || {};
        window.EVOLV.nodes = window.EVOLV.nodes || {};
        window.EVOLV.nodes.${nodeName} = window.EVOLV.nodes.${nodeName} || {};

        // Inject the pre-loaded menu data directly into the namespace
        window.EVOLV.nodes.${nodeName}.menuData = ${menuDataJSON};

        ${initFunctions.join('\n\n')}

        // Main initialization function that calls all menu initializers
        window.EVOLV.nodes.${nodeName}.initEditor = function(node) {
            ${menuTypes.map(type => `
            if (window.EVOLV.nodes.${nodeName}.${type}Menu && window.EVOLV.nodes.${nodeName}.${type}Menu.initEditor) {
                window.EVOLV.nodes.${nodeName}.${type}Menu.initEditor(node);
            }`).join('')}
        };

        console.log('${nodeName} menu data and initializers loaded for: ${menuTypes.join(', ')}');
        `;
    }
}

module.exports = MenuManager;