ream/app/utils.js

export const routerReady = router =>
  new Promise((resolve, reject) => {
    router.onReady(resolve, reject)
  })

export const getRequireDefault = obj => {
  // eslint-disable-next-line no-prototype-builtins
  return obj && obj.hasOwnProperty('default') ? obj.default : obj
}

export const setInitialData = vm => {
  const { getInitialData, initialDataKey } = vm.$options

  if (getInitialData) {
    vm.$initialDataKey = vm.$initialDataKey || initialDataKey

    if (!vm.$initialDataKey) {
      throw new Error(
        'Route component requires a unique `initialDataKey` to use `getInitialData` method'
      )
    }

    if (!vm.$isRouteComponent) {
      throw new Error(
        '`getInitialData` method can only be used in a route component'
      )
    }

    const initialData = vm.$dataStore.getData(vm.$initialDataKey)
    vm.$initialData = initialData
  }
}

export const pageNotFound = url => ({
  code: 404,
  url,
  errorPath: url,
  message: 'page not found'
})

export const runMiddlewares = async (middlewares, ctx) => {
  if (middlewares.length > 0) {
    for (const middleware of middlewares) {
      // eslint-disable-next-line no-await-in-loop
      await middleware(ctx)
    }
  }
}