Files
elm-0.19-workshop/Main.elm
2016-04-02 08:37:13 -07:00

132 lines
2.9 KiB
Elm

module Main (..) where
{-| THIS FILE IS NOT PART OF THE WORKSHOP! It is only to verify that you
have everything set up properly.
-}
import Html exposing (..)
import Html.Attributes exposing (..)
import Html.Events exposing (..)
import Auth
import StartApp
import Http
import Task exposing (Task)
import Effects exposing (Effects)
import Json.Decode exposing (Decoder, (:=))
import Json.Encode
import Signal exposing (Address)
main : Signal Html
main =
app.html
app : StartApp.App Model
app =
StartApp.start
{ view = view
, update = update
, init = ( initialModel, Effects.task searchFeed )
, inputs = []
}
initialModel : Model
initialModel =
{ status = "Verifying setup..."
}
type alias Model =
{ status : String }
port tasks : Signal (Task Effects.Never ())
port tasks =
app.tasks
searchFeed : Task x Action
searchFeed =
let
url =
"https://api.github.com/search/repositories?q=test&access_token="
++ Auth.token
in
performAction
(\_ -> ItWorked)
(\err -> ItFailed err)
(Http.get (Json.Decode.succeed "") url)
performAction : (a -> b) -> (y -> b) -> Task y a -> Task x b
performAction successToAction errorToAction task =
let
successTask =
Task.map successToAction task
in
Task.onError successTask (\err -> Task.succeed (errorToAction err))
view : Address Action -> Model -> Html
view address model =
div
[ class "content" ]
[ header [] [ h1 [] [ text "Elm Workshop" ] ]
, div
[ style
[ ( "font-size", "48px" )
, ( "text-align", "center" )
, ( "padding", "48px" )
]
]
[ text model.status ]
]
onInput address wrap =
on "input" targetValue (\val -> Signal.message address (wrap val))
defaultValue str =
property "defaultValue" (Json.Encode.string str)
type Action
= ItWorked
| ItFailed Http.Error
update : Action -> Model -> ( Model, Effects Action )
update action model =
case action of
ItWorked ->
( { status = "You're all set!" }, Effects.none )
ItFailed err ->
let
status =
case err of
Http.Timeout ->
"Timed out trying to contact GitHub. Check your Internet connection?"
Http.NetworkError ->
"Network error. Check your Internet connection?"
Http.UnexpectedPayload msg ->
"Something is misconfigured: " ++ msg
Http.BadResponse code msg ->
case code of
401 ->
"Auth.elm does not have a valid token. :( Try recreating Auth.elm by following the steps in the README under the section Create a GitHub Personal Access Token."
_ ->
"GitHub's Search API returned an error: "
++ (toString code)
++ " "
++ msg
in
( { status = status }, Effects.none )