config.js•3.34 kB
#!/usr/bin/env node
/**
* Environment-Aware Configuration for Smart AI Bridge
* Based on industry patterns from Laravel, Next.js, and Typesafe Config
*/
import fs from 'fs/promises';
import path from 'path';
class BridgeConfig {
constructor() {
this.environment = process.env.NODE_ENV || 'development';
this.config = {};
this.loaded = false;
}
async initialize() {
if (this.loaded) return this.config;
try {
// Load base configuration
const baseConfig = await this.loadConfigFile('.env');
// Load environment-specific overrides
const envConfig = await this.loadConfigFile(`.env.${this.environment}`);
// Merge configurations (env-specific overrides base)
this.config = {
...baseConfig,
...envConfig,
environment: this.environment
};
this.loaded = true;
console.error(`✅ Configuration loaded for environment: ${this.environment}`);
return this.config;
} catch (error) {
console.error(`❌ Configuration loading failed:`, error);
// Fallback to safe defaults
return this.getDefaultConfig();
}
}
async loadConfigFile(filename) {
try {
const configPath = path.resolve(filename);
const content = await fs.readFile(configPath, 'utf8');
const config = {};
const lines = content.split('\n');
for (const line of lines) {
const trimmed = line.trim();
if (trimmed && !trimmed.startsWith('#')) {
const [key, ...valueParts] = trimmed.split('=');
if (key && valueParts.length > 0) {
config[key.trim()] = valueParts.join('=').trim();
}
}
}
return config;
} catch (error) {
console.error(`⚠️ Config file ${filename} not found, using defaults`);
return {};
}
}
getDefaultConfig() {
// Safe production defaults
return {
environment: this.environment,
// Service Configuration
DEEPSEEK_TIMEOUT: '30000',
DEEPSEEK_RETRY_ATTEMPTS: '3',
DEEPSEEK_MAX_FILE_SIZE: '10485760', // 10MB
DEEPSEEK_CHUNK_SIZE: '8000',
// Circuit Breaker Configuration (based on research)
CIRCUIT_BREAKER_FAILURE_THRESHOLD: '5',
CIRCUIT_BREAKER_TIMEOUT: '60000', // 1 minute
CIRCUIT_BREAKER_HALF_OPEN_MAX_CALLS: '3',
// IP Discovery Strategy
DEEPSEEK_IP_STRATEGIES: 'wsl_host,veth,gateway,common',
DEEPSEEK_IP_CACHE_TTL: '300000', // 5 minutes
// Fallback Configuration
ENABLE_OFFLINE_MODE: this.environment === 'development' ? 'true' : 'false',
FALLBACK_RESPONSE_ENABLED: 'true',
CACHE_RESPONSES: this.environment === 'production' ? 'true' : 'false'
};
}
get(key) {
return this.config[key];
}
getNumber(key, defaultValue = 0) {
const value = this.get(key);
const parsed = parseInt(value, 10);
return isNaN(parsed) ? defaultValue : parsed;
}
getBoolean(key, defaultValue = false) {
const value = this.get(key);
return value === 'true' || value === '1';
}
isDevelopment() {
return this.environment === 'development';
}
isProduction() {
return this.environment === 'production';
}
}
// Export singleton instance
export const config = new BridgeConfig();