sanket3280/code-execution
0
1/**2 * Startup Validation & Checks3 * Validates system configuration and dependencies on startup4 */5 6const logger = require('./logger');7const { config } = require('../config/env.config');8const { isConnected } = require('./database');9const { getCache } = require('./cache');10 11/**12 * Validate environment configuration13 */14const validateEnvironment = () => {15 // Silent validation16 17 const checks = {18 passed: [],19 warnings: [],20 failed: [],21 };22 23 // Check Node version24 const nodeVersion = process.version;25 const requiredVersion = 'v14.0.0';26 if (nodeVersion >= requiredVersion) {27 checks.passed.push(`Node.js version: ${nodeVersion}`);28 } else {29 checks.failed.push(`Node.js version ${nodeVersion} is below required ${requiredVersion}`);30 }31 32 // Check environment33 if (config.nodeEnv) {34 checks.passed.push(`Environment: ${config.nodeEnv}`);35 } else {36 checks.warnings.push('NODE_ENV not set, defaulting to development');37 }38 39 // Check JWT secret strength40 if (config.isProduction && config.jwt.secret.length < 32) {41 checks.failed.push('JWT_SECRET is too weak for production (minimum 32 characters)');42 } else {43 checks.passed.push('JWT secret configured');44 }45 46 // Check email configuration47 if (config.email.brevo.apiKey || config.email.gmail.user) {48 checks.passed.push('Email service configured');49 } else {50 checks.warnings.push('No email service configured');51 }52 53 // Check OAuth configuration54 if (config.oauth.google.enabled) {55 checks.passed.push('Google OAuth enabled');56 }57 if (config.oauth.github.enabled) {58 checks.passed.push('GitHub OAuth enabled');59 }60 if (!config.oauth.google.enabled && !config.oauth.github.enabled) {61 checks.warnings.push('No OAuth providers configured');62 }63 64 // Check Redis configuration65 if (config.redis.url) {66 checks.passed.push('Redis configured');67 } else {68 checks.warnings.push('Redis not configured, using memory cache');69 }70 71 return checks;72};73 74/**75 * Validate database connection76 */77const validateDatabase = async () => {78 logger.info('Validating database connection...');79 80 try {81 const connected = isConnected();82 83 if (!connected) {84 throw new Error('Database is not connected');85 }86 87 logger.success('Database connection validated');88 return { success: true, message: 'Database connected' };89 } catch (error) {90 logger.error('Database validation failed', error);91 return { success: false, message: error.message };92 }93};94 95/**96 * Validate cache system97 */98const validateCache = async () => {99 logger.info('Validating cache system...');100 101 try {102 const cache = getCache();103 104 // Test cache operations105 const testKey = 'startup_test';106 const testValue = { test: true, timestamp: Date.now() };107 108 await cache.set(testKey, testValue, 10);109 const retrieved = await cache.get(testKey);110 await cache.del(testKey);111 112 if (!retrieved || retrieved.test !== true) {113 throw new Error('Cache read/write test failed');114 }115 116 logger.success('Cache system validated');117 return { 118 success: true, 119 message: 'Cache operational',120 type: cache.useRedis ? 'Redis' : 'Memory',121 };122 } catch (error) {123 logger.error('Cache validation failed', error);124 return { success: false, message: error.message };125 }126};127 128/**129 * Check system resources130 */131const checkSystemResources = () => {132 logger.info('Checking system resources...');133 134 const memory = process.memoryUsage();135 const memoryUsageMB = Math.round(memory.heapUsed / 1024 / 1024);136 const memoryTotalMB = Math.round(memory.heapTotal / 1024 / 1024);137 const memoryPercentage = Math.round((memory.heapUsed / memory.heapTotal) * 100);138 139 const resources = {140 memory: {141 used: memoryUsageMB,142 total: memoryTotalMB,143 percentage: memoryPercentage,144 unit: 'MB',145 },146 uptime: process.uptime(),147 platform: process.platform,148 arch: process.arch,149 nodeVersion: process.version,150 };151 152 logger.info('System resources', resources);153 154 // Warn if memory usage is high155 if (memoryPercentage > 80) {156 logger.warn(`High memory usage: ${memoryPercentage}%`);157 }158 159 return resources;160};161 162/**163 * Run all startup checks164 */165const runStartupChecks = async () => {166 // Only show detailed checks in development167 if (config.isDevelopment) {168 logger.info('='.repeat(60));169 logger.info('🚀 Running startup validation checks...');170 logger.info('='.repeat(60));171 }172 173 const results = {174 timestamp: new Date().toISOString(),175 environment: config.nodeEnv,176 port: config.port,177 checks: {},178 };179 180 // 1. Validate environment181 const envChecks = validateEnvironment();182 results.checks.environment = envChecks;183 184 // Log environment checks (only in development)185 if (config.isDevelopment) {186 if (envChecks.passed.length > 0) {187 logger.success(`Environment checks passed (${envChecks.passed.length}):`);188 envChecks.passed.forEach(check => logger.info(` ✓ ${check}`));189 }190 if (envChecks.warnings.length > 0) {191 logger.warn(`Environment warnings (${envChecks.warnings.length}):`);192 envChecks.warnings.forEach(warning => logger.warn(` ⚠ ${warning}`));193 }194 }195 196 // Always show failures197 if (envChecks.failed.length > 0) {198 logger.error(`Environment checks failed (${envChecks.failed.length}):`);199 envChecks.failed.forEach(failure => logger.error(` ✗ ${failure}`));200 }201 202 // 2. Validate database203 results.checks.database = await validateDatabase();204 205 // 3. Validate cache (silent in production)206 if (config.isDevelopment) {207 results.checks.cache = await validateCache();208 } else {209 // Silent cache validation in production210 try {211 const cache = getCache();212 results.checks.cache = { success: true, type: cache.useRedis ? 'Redis' : 'Memory' };213 } catch (error) {214 results.checks.cache = { success: false, message: error.message };215 }216 }217 218 // 4. Check system resources (only in development)219 if (config.isDevelopment) {220 results.checks.resources = checkSystemResources();221 }222 223 // Summary224 if (config.isDevelopment) {225 logger.info('='.repeat(60));226 }227 228 const allPassed = 229 envChecks.failed.length === 0 &&230 results.checks.database.success &&231 results.checks.cache.success;232 233 if (allPassed) {234 logger.success('✅ All startup checks passed!');235 } else {236 logger.warn('⚠️ Some startup checks failed or have warnings');237 }238 239 if (config.isDevelopment) {240 logger.info('='.repeat(60));241 }242 243 return results;244};245 246/**247 * Display startup banner248 */249const displayStartupBanner = () => {250 // Only show banner in development251 if (!config.isDevelopment) {252 console.log(`\n🚀 CodeBattle API - ${config.nodeEnv.toUpperCase()} - v1.0.0\n`);253 return;254 }255 256 const banner = `257╔═══════════════════════════════════════════════════════════╗258║ ║259║ ██████╗ ██████╗ ██████╗ ███████╗██████╗ █████╗ ████████╗████████╗██╗ ███████╗260║ ██╔════╝██╔═══██╗██╔══██╗██╔════╝██╔══██╗██╔══██╗╚══██╔══╝╚══██╔══╝██║ ██╔════╝261║ ██║ ██║ ██║██║ ██║█████╗ ██████╔╝███████║ ██║ ██║ ██║ █████╗ 262║ ██║ ██║ ██║██║ ██║██╔══╝ ██╔══██╗██╔══██║ ██║ ██║ ██║ ██╔══╝ 263║ ╚██████╗╚██████╔╝██████╔╝███████╗██████╔╝██║ ██║ ██║ ██║ ███████╗███████╗264║ ╚═════╝ ╚═════╝ ╚═════╝ ╚══════╝╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═╝ ╚══════╝╚══════╝265║ ║266║ Coding Challenge Platform ║267║ Environment: ${config.nodeEnv.toUpperCase().padEnd(9)} ║268║ Version: v1.0.0 ║269║ ║270╚═══════════════════════════════════════════════════════════╝271`;272 273 console.log(banner);274};275 276module.exports = {277 validateEnvironment,278 validateDatabase,279 validateCache,280 checkSystemResources,281 runStartupChecks,282 displayStartupBanner,283};284