import type { HostApiResult } from '@src/types/runtime';

export interface HostApiRequest {
  path: string;
  method?: string;
  headers?: Record<string, string>;
  body?: unknown;
}

export interface NormalizedHostApiRequest {
  path: string;
  pathname: string;
  method: string;
  headers: Record<string, string>;
  body: unknown;
  url: URL;
}

export function normalizeRequest(request: HostApiRequest): NormalizedHostApiRequest {
  const path = String(request.path || '/').trim() || '/';

  return {
    path,
    pathname: new URL(path, 'http://127.0.0.1').pathname,
    method: String(request.method || 'GET').trim().toUpperCase(),
    headers: request.headers || {},
    body: request.body ?? null,
    url: new URL(path, 'http://127.0.0.1'),
  };
}

export function parseJsonBody<T>(body: unknown): T {
  if (body == null || body === '') {
    return {} as T;
  }

  if (typeof body === 'string') {
    return JSON.parse(body) as T;
  }

  return body as T;
}

export function ok<T>(data: T, status = 200): HostApiResult<T> {
  return {
    success: true,
    ok: true,
    status,
    json: data,
    data,
  };
}

export function fail<T = unknown>(status: number, error: string, data?: T): HostApiResult<T> {
  return {
    success: false,
    ok: false,
    status,
    error,
    text: error,
    data,
  };
}