import { fragmentsConfigSchema } from "./schema.js";
import type { FragmentsConfig } from "./types.js";
import { normalizeGovernanceConfig } from "./governance.js";

function formatZodErrors(errors: Array<{ path: (string | number)[]; message: string }>) {
  return errors.map((error) => `  - ${error.path.join(".")}: ${error.message}`).join("\n");
}

export function defineConfig<TConfig extends FragmentsConfig>(config: TConfig): TConfig {
  const normalized = normalizeGovernanceConfig(config);
  const result = fragmentsConfigSchema.safeParse(normalized);

  if (!result.success) {
    throw new Error(`Invalid fragments config:\n${formatZodErrors(result.error.errors)}`);
  }

  return result.data as TConfig;
}