import { z } from 'zod';
import { config } from 'dotenv';
import { resolve } from 'path';

// Load .env file from the api package root
config({ path: resolve(process.cwd(), '.env') });

const envSchema = z.object({
  NODE_ENV: z.enum(['development', 'production', 'test']).default('development'),
  PORT: z.string().default('4000'),
  DATABASE_URL: z.string(),
  JWT_SECRET: z.string().min(32),
  JWT_EXPIRES_IN: z.string().default('15m'),
  JWT_REFRESH_EXPIRES_IN: z.string().default('7d'),
  CORS_ORIGIN: z.string().default('http://localhost:3000'),
});

const parsed = envSchema.safeParse(process.env);

if (!parsed.success) {
  console.error('❌ Invalid environment variables:', parsed.error.flatten().fieldErrors);
  process.exit(1);
}

export const env = parsed.data;

// Parse CORS origins (comma-separated) into array
export function getCorsOrigins(): string[] {
  return env.CORS_ORIGIN.split(',').map(origin => origin.trim());
}