meocord/dist/esm/util/meocord-config-loader.util.js

Decorator-based Discord bot framework built on discord.js. Brings NestJS-style controllers, dependency injection, guards, and testing utilities to bot development — with a full CLI and TypeScript-first design.

import path from 'path';
import { existsSync, readFileSync } from 'fs';
import { createJiti } from 'jiti';
import { fixJSON } from './json.util.js';

let cachedConfig;
let configLoaded = false;
/**
 * Loads the MeoCord configuration, checking compiled output first then falling back to source.
 *
 * Resolution order:
 * 1. `dist/meocord.config.mjs` — pre-compiled by `meocord build`, no tsconfig or source files needed
 * 2. `meocord.config.ts` — loaded via jiti with tsconfig path aliases (dev mode)
 *
 * The result is cached after the first successful load.
 *
 * @returns {MeoCordConfig | undefined} The loaded configuration object, or undefined if loading fails.
 */ function loadMeoCordConfig() {
    if (configLoaded) return cachedConfig;
    configLoaded = true;
    cachedConfig = loadCompiledConfig() ?? loadSourceConfig();
    return cachedConfig;
}
/**
 * Loads the pre-compiled config from dist/meocord.config.mjs.
 * This file is generated by `meocord build` and requires no tsconfig or source files.
 */ function loadCompiledConfig() {
    const compiledPath = path.resolve(process.cwd(), 'dist', 'meocord.config.mjs');
    if (!existsSync(compiledPath)) return undefined;
    try {
        const jiti = createJiti(import.meta.url, {
            interopDefault: true
        });
        return jiti(compiledPath);
    } catch  {
        // Fall through to source config
        return undefined;
    }
}
/**
 * Loads the source config from meocord.config.ts via jiti with tsconfig path alias resolution.
 * Used in development mode where source files and tsconfig.json are available.
 */ function loadSourceConfig() {
    const configPath = path.resolve(process.cwd(), 'meocord.config.ts');
    if (!existsSync(configPath)) return undefined;
    try {
        const tsConfigPath = path.resolve(process.cwd(), 'tsconfig.json');
        const aliases = {};
        if (existsSync(tsConfigPath)) {
            const tsConfig = JSON.parse(fixJSON(readFileSync(tsConfigPath, 'utf-8')));
            const paths = tsConfig?.compilerOptions?.paths;
            if (paths) {
                for (const [key, values] of Object.entries(paths)){
                    const aliasKey = key.replace('/*', '');
                    aliases[aliasKey] = path.resolve(process.cwd(), values[0].replace('/*', ''));
                }
            }
        }
        const jiti = createJiti(import.meta.url, {
            interopDefault: true,
            alias: aliases,
            moduleCache: false
        });
        return jiti(configPath);
    } catch (error) {
        if (error instanceof Error) {
            console.error(`[MeoCord] Failed to load config: ${error.message}`);
        } else {
            console.error(`[MeoCord] Failed to load config: Unknown error`);
        }
        return undefined;
    }
}

export { loadMeoCordConfig };