// src/config/flexport.ts
interface FlexportConfig {
  apiKey: string;
  baseUrl: string;
  webhookSecret: string;
  cacheTtlMs: number;
  logLevel: 'debug' | 'info' | 'warn';
}

const configs: Record<string, FlexportConfig> = {
  development: {
    apiKey: process.env.FLEXPORT_API_KEY_DEV!,
    baseUrl: 'https://api.flexport.com',  // Same base, different key scope
    webhookSecret: process.env.FLEXPORT_WEBHOOK_SECRET_DEV!,
    cacheTtlMs: 30_000,   // 30s in dev for fast iteration
    logLevel: 'debug',
  },
  staging: {
    apiKey: process.env.FLEXPORT_API_KEY_STAGING!,
    baseUrl: 'https://api.flexport.com',
    webhookSecret: process.env.FLEXPORT_WEBHOOK_SECRET_STAGING!,
    cacheTtlMs: 60_000,
    logLevel: 'info',
  },
  production: {
    apiKey: process.env.FLEXPORT_API_KEY!,
    baseUrl: 'https://api.flexport.com',
    webhookSecret: process.env.FLEXPORT_WEBHOOK_SECRET!,
    cacheTtlMs: 300_000,  // 5min in prod
    logLevel: 'warn',
  },
};

export function getFlexportConfig(): FlexportConfig {
  const env = process.env.NODE_ENV || 'development';
  const config = configs[env];
  if (!config) throw new Error(`No Flexport config for env: ${env}`);
  if (!config.apiKey) throw new Error(`Missing FLEXPORT_API_KEY for ${env}`);
  return config;
}

# .env.example
# Development (read-only scope, limited data access)
FLEXPORT_API_KEY_DEV=fp_dev_...
FLEXPORT_WEBHOOK_SECRET_DEV=whsec_dev_...

# Staging (read-write scope, test data)
FLEXPORT_API_KEY_STAGING=fp_stg_...
FLEXPORT_WEBHOOK_SECRET_STAGING=whsec_stg_...

# Production (full scope, real shipments)
FLEXPORT_API_KEY=fp_prod_...
FLEXPORT_WEBHOOK_SECRET=whsec_prod_...

// Prevent accidental production API calls from dev/test
function assertNotProduction(operation: string) {
  if (process.env.NODE_ENV === 'production') return;
  const config = getFlexportConfig();
  if (config.apiKey.startsWith('fp_prod_')) {
    throw new Error(`SAFETY: ${operation} blocked — production key detected in ${process.env.NODE_ENV}`);
  }
}

// Usage in destructive operations
async function deleteProduct(id: string) {
  assertNotProduction('deleteProduct');
  await flexport(`/products/${id}`, { method: 'DELETE' });
}