import { z } from 'zod';
import { LOG_LEVELS, DEFAULT_REQUEST_TIMEOUT } from './constants.js';
const configSchema = z.object({
serpstatApiToken: z.string().min(1, 'SERPSTAT_API_TOKEN is required'),
serpstatApiUrl: z.string().url().default('https://api.serpstat.com/v4'),
logLevel: z.enum(LOG_LEVELS).default('error'),
maxRetries: z.number().int().positive().default(3),
requestTimeout: z.number().int().positive().default(DEFAULT_REQUEST_TIMEOUT),
});
export type Config = z.infer<typeof configSchema>;
export function loadConfig(): Config {
const token = process.env.SERPSTAT_API_TOKEN;
// In production, require the token. In tests, allow fallback.
if (!token && process.env.NODE_ENV === 'production') {
throw new Error('SERPSTAT_API_TOKEN environment variable is required in production');
}
return configSchema.parse({
serpstatApiToken: token ?? 'test-token-for-development',
serpstatApiUrl: process.env.SERPSTAT_API_URL ?? 'https://api.serpstat.com/v4',
logLevel: process.env.LOG_LEVEL ?? 'error',
maxRetries: process.env.MAX_RETRIES ? Number(process.env.MAX_RETRIES) : 2,
requestTimeout: process.env.REQUEST_TIMEOUT ? Number(process.env.REQUEST_TIMEOUT) : DEFAULT_REQUEST_TIMEOUT,
});
}
