let routes = [];
let authTypes;
export interface Option {
  routes
  authTypes?
}

export const init = (option:Option) => {
  routes = option.routes;
  authTypes = option.authTypes;
}

/**
 * 是否为小程序路径
 * @param path 路径名
 * @param isExact 是否精确判断，即有无斜杠
 * @param hasSlash 是否有斜杠
 */
export const isMpPath = (path, isExact?, hasSlash?) => {
  const prefix = isExact ? (hasSlash ? '/pages/' : 'pages/') : 'pages/';
  return isExact
    ? path.indexOf(prefix) === 0
    : path.indexOf(prefix) > -1;
}

/**
 * 普通路径转小程序路径（带上/pages或pages）
 * @param path
 * @param hasSlash 是否带斜杠
 * @returns {any}
 */
export const convertToMpPath = (path, hasSlash?) => {
  const isNormalMpPath = isMpPath(path);
  const isExactMpPath = isMpPath(path, true, hasSlash);
  // 精确匹配则直接返回
  if(isExactMpPath) return path;
  // 普通匹配则直接追加或删除首个斜杠
  if(isNormalMpPath){
    return hasSlash ? `/${path}` : path.replace(/\//,'');
  }else{
    const prefix = hasSlash ? '/pages' : 'pages';
    return `${prefix}${path}`;
  }
}

// == 将小程序路径转为普通路径（去除/pages或pages）
export const convertToPath = (mpPath) => {
  return mpPath.replace(/(\/)?pages/, '');
}


// == 根据url获取路由配置
export const get = (url) => {
  if(typeof url === 'object') return {};
  if(routes.length === 0) {
    console.warn('路由配置不存在，请先初始化！');
    return {};
  }
  const route = routes.find((route) => {
    return route.url == url || route.url == convertToPath(url);
  });
  return route;
}

// == 判断是否是无授权页面
export const isNone = (path) => {
  const route = get(path);
  const auth = authTypes[route.auth] || -1;
  return auth == authTypes.none;
}

// == 判断是否是公共页面
export const isPub = (path) => {
  const route = get(path);
  const auth = authTypes[route.auth];
  return auth == authTypes.pub;
}