import { homedir } from 'node:os';
import { join } from 'node:path';
import { ConfigSchema, type Config } from './contracts.ts';
import { checked } from './validate.ts';

export function configuration(overrides: Partial<Config> = {}): Config {
  return checked(
    ConfigSchema,
    {
      model: 'jev-1.13.0',
      requestConcurrency: 3,
      parseConcurrency: 2,
      maxContextChars: 12000,
      maxRequestBytes: 64000,
      requestTimeoutMs: 30000,
      runTimeoutMs: 300000,
      maxRetries: 2,
      retentionDays: 30,
      storageDir: process.env.JEVVY_STORAGE_DIR ?? join(homedir(), '.cache', 'jevvy'),
      ...overrides,
    },
    'Configuration',
  );
}