/**
 * generalFunctions/index.js
 * -----------------------------------------------------------
 * Central barrel file for re-exporting helpers and configurations.
 * Provides both namespace exports and dynamic loading capabilities.
 */

// Core helper modules
export * as menuUtils from './src/helper/menuUtils.js';
export * as logger from './src/helper/logger.js';
export * as validation from './src/helper/validationUtils.js';

// Domain-specific modules
export * as measurements from './src/measurements/index.js';
export * as nrmse from './src/nrmse/index.js';
export * as state from './src/state/index.js';

// Configuration loader with error handling
async function loadConfig(path) {
    try {
        const module = await import(path, { assert: { type: 'json' } });
        return module.default;
    } catch (error) {
        console.warn(`Failed to load config: ${path}`, error);
        return null;
    }
}

// Lazy-loaded configurations
export const configs = {
    get projectSettings() {
        return loadConfig('./configs/projectSettings.json');
    },
    get measurementConfig() {
        return loadConfig('./configs/measurementConfig.json');
    }
};

// Dynamic loaders with validation
export async function loadHelper(name) {
    if (!name || typeof name !== 'string') {
        throw new Error('Helper name must be a non-empty string');
    }
    
    try {
        return await import(`./src/helper/${name}.js`);
    } catch (error) {
        throw new Error(`Failed to load helper "${name}": ${error.message}`);
    }
}

export async function loadAssetDatasets() {
    try {
        return await import('./datasets/assetData/suppliers.json', {
            assert: { type: 'json' }
        });
    } catch (error) {
        throw new Error(`Failed to load asset datasets: ${error.message}`);
    }
}