import prisma from './prisma';

export async function getSystemConfig() {
  try {
    const configs = await prisma.systemConfig.findMany();
    return configs.reduce((acc, conf) => {
      acc[conf.key] = conf.value;
      return acc;
    }, {} as Record<string, string>);
  } catch (e) {
    console.error('Failed to load system config from DB:', e);
    return {};
  }
}

/**
 * Get a config value with a default fallback
 */
export async function getConfigValue(key: string, defaultValue: string = ''): Promise<string> {
  const config = await getSystemConfig();
  return config[key] || defaultValue;
}

/**
 * Get a numeric config value with a default fallback
 */
export async function getConfigNumber(key: string, defaultValue: number): Promise<number> {
  const value = await getConfigValue(key, String(defaultValue));
  const num = parseFloat(value);
  return isNaN(num) ? defaultValue : num;
}

/**
 * Get a boolean config value with a default fallback
 */
export async function getConfigBoolean(key: string, defaultValue: boolean): Promise<boolean> {
  const value = await getConfigValue(key, String(defaultValue));
  return value === 'true';
}

/**
 * Search configuration defaults
 */
export const SEARCH_DEFAULTS = {
  SEMANTIC_THRESHOLD: 0.65,
  RRF_K_BASE: 20,
  RRF_K_ADAPTIVE: true,
  KEYWORD_BOOST_EXACT: 2.0,
  KEYWORD_BOOST_CONCEPTUAL: 0.7,
  SEMANTIC_BOOST_EXACT: 0.7,
  SEMANTIC_BOOST_CONCEPTUAL: 1.5,
  QUERY_EXPANSION_ENABLED: false,
  QUERY_EXPANSION_MAX_SYNONYMS: 3,
  DEBUG_MODE: false,
} as const;