import dotenv from 'dotenv';
import path from 'path';
import { fileURLToPath } from 'url';
import {
DatabaseConfig,
RedisConfig,
HttpServerConfig,
CleanupConfig
} from '../types.js';
import { OSSConfig } from '../core/OssUploader.js';
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const PROJECT_ROOT = path.resolve(__dirname, '../..');
// 加载环境变量
dotenv.config({ path: path.join(PROJECT_ROOT, '.env') });
/**
* 应用配置接口
*/
export interface AppConfig {
projectRoot: string;
database: DatabaseConfig;
redis: RedisConfig;
http: HttpServerConfig;
cleanup: CleanupConfig;
oss: OSSConfig;
}
/**
* 从环境变量加载配置
*/
export function loadConfig(): AppConfig {
const databaseConfig: DatabaseConfig = {
host: process.env.MYSQL_HOST || '127.0.0.1',
port: parseInt(process.env.MYSQL_PORT || '3306'),
user: process.env.MYSQL_USER || 'root',
password: process.env.MYSQL_PASSWORD || '',
database: process.env.MYSQL_DATABASE || 'mcp'
};
const redisConfig: RedisConfig = {
host: process.env.REDIS_HOST || '127.0.0.1',
port: parseInt(process.env.REDIS_PORT || '6379'),
password: process.env.REDIS_PASSWORD || undefined
};
const httpConfig: HttpServerConfig = {
port: parseInt(process.env.PORT || process.env.HTTP_PORT || '3000'),
baseUrl: process.env.BASE_URL || 'http://localhost'
};
const cleanupConfig: CleanupConfig = {
enabled: process.env.DB_CLEANUP_ENABLED !== 'false',
intervalHours: parseInt(process.env.DB_CLEANUP_INTERVAL_HOURS || '24'),
retentionDays: parseInt(process.env.DB_DATA_RETENTION_DAYS || '2'),
batchSize: parseInt(process.env.DB_CLEANUP_BATCH_SIZE || '1000')
};
const ossConfig: OSSConfig = {
accessKeyId: process.env.OSS_ACCESS_KEY_ID || '',
accessKeySecret: process.env.OSS_ACCESS_KEY_SECRET || '',
bucket: process.env.OSS_BUCKET || '',
endpoint: process.env.OSS_ENDPOINT || ''
};
return {
projectRoot: PROJECT_ROOT,
database: databaseConfig,
redis: redisConfig,
http: httpConfig,
cleanup: cleanupConfig,
oss: ossConfig
};
}
/**
* 检查是否是云函数环境
*/
export function isCloudFunctionEnvironment(): boolean {
return !!(
process.env.SERVERLESS ||
process.env.SCF_RUNTIME_API ||
process.env.AWS_LAMBDA_FUNCTION_NAME ||
process.env.TENCENTCLOUD_RUNENV ||
process.env.SCF_NAMESPACE ||
process.env._SCF_SERVER_PORT ||
process.env.FORCE_CLOUD_FUNCTION === 'true'
);
}
/**
* 获取公网访问地址
*/
export function getPublicBaseUrl(httpConfig: HttpServerConfig): string {
const isCloudFunction = isCloudFunctionEnvironment();
return isCloudFunction
? `${httpConfig.baseUrl}`
: `${httpConfig.baseUrl}:${httpConfig.port}`;
}
/**
* 验证必需的配置项
*/
export function validateConfig(config: AppConfig): void {
const errors: string[] = [];
// 验证数据库配置
if (!config.database.host) errors.push('MYSQL_HOST is required');
if (!config.database.user) errors.push('MYSQL_USER is required');
if (!config.database.database) errors.push('MYSQL_DATABASE is required');
// 验证 Redis 配置
if (!config.redis.host) errors.push('REDIS_HOST is required');
// 验证 HTTP 配置
if (!config.http.baseUrl) errors.push('BASE_URL is required');
if (config.http.port < 1 || config.http.port > 65535) {
errors.push('HTTP_PORT must be between 1 and 65535');
}
if (errors.length > 0) {
throw new Error(`配置验证失败:\n${errors.join('\n')}`);
}
}
