import { z } from 'zod';
const EnvSchema = z.object({
GEMINI_API_KEY: z.string().min(1, 'GEMINI_API_KEY is required'),
NODE_ENV: z.enum(['development', 'production', 'test']).default('development'),
GEMINI_DEFAULT_MODEL: z.string().min(1, 'GEMINI_DEFAULT_MODEL is required'),
GEMINI_MAX_OUTPUT_TOKENS: z.coerce.number().int().positive().default(65536),
GEMINI_TIMEOUT_MS: z.coerce.number().int().positive().default(120000),
LOG_LEVEL: z
.enum(['fatal', 'error', 'warn', 'info', 'debug', 'trace'])
.default('info'),
});
export type EnvConfig = z.infer<typeof EnvSchema>;
export function loadConfig(): EnvConfig {
const parsed = EnvSchema.safeParse(process.env);
if (!parsed.success) {
const formatted = parsed.error.issues
.map((issue) => ` - ${issue.path.join('.')}: ${issue.message}`)
.join('\n');
throw new Error(`Configuration validation failed:\n${formatted}`);
}
return parsed.data;
}
