141 lines
3.9 KiB
Elm
141 lines
3.9 KiB
Elm
module ElmHub exposing (..)
|
|
|
|
import Html exposing (..)
|
|
import Html.Attributes exposing (..)
|
|
import Html.Events exposing (..)
|
|
import Html.App as Html
|
|
import Http
|
|
import Auth
|
|
import Task exposing (Task)
|
|
import Json.Decode exposing (Decoder)
|
|
import Dict exposing (Dict)
|
|
import SearchResult
|
|
|
|
|
|
searchFeed : String -> Cmd Msg
|
|
searchFeed query =
|
|
let
|
|
url =
|
|
"https://api.github.com/search/repositories?access_token="
|
|
++ Auth.token
|
|
++ "&q="
|
|
++ query
|
|
++ "+language:elm&sort=stars&order=desc"
|
|
in
|
|
Task.perform HandleSearchError HandleSearchResponse (Http.get responseDecoder url)
|
|
|
|
|
|
responseDecoder : Decoder (List SearchResult.Model)
|
|
responseDecoder =
|
|
Json.Decode.at [ "items" ] (Json.Decode.list SearchResult.decoder)
|
|
|
|
|
|
type alias Model =
|
|
{ query : String
|
|
, results : Dict Int SearchResult.Model
|
|
, errorMessage : Maybe String
|
|
}
|
|
|
|
|
|
initialModel : Model
|
|
initialModel =
|
|
{ query = "tutorial"
|
|
, results = Dict.empty
|
|
, errorMessage = Nothing
|
|
}
|
|
|
|
|
|
view : Model -> Html Msg
|
|
view model =
|
|
div [ class "content" ]
|
|
[ header []
|
|
[ h1 [] [ text "ElmHub" ]
|
|
, span [ class "tagline" ] [ text "Like GitHub, but for Elm things." ]
|
|
]
|
|
, input [ class "search-query", onInput SetQuery, defaultValue model.query ] []
|
|
, button [ class "search-button", onClick Search ] [ text "Search" ]
|
|
, viewErrorMessage model.errorMessage
|
|
, ul [ class "results" ] (viewSearchResults model.results)
|
|
]
|
|
|
|
|
|
viewErrorMessage : Maybe String -> Html a
|
|
viewErrorMessage errorMessage =
|
|
case errorMessage of
|
|
Just message ->
|
|
div [ class "error" ] [ text message ]
|
|
|
|
Nothing ->
|
|
text ""
|
|
|
|
|
|
viewSearchResults : Dict Int SearchResult.Model -> List (Html Msg)
|
|
viewSearchResults results =
|
|
results
|
|
|> Dict.values
|
|
|> List.sortBy (.stars >> negate)
|
|
|> List.map viewSearchResult
|
|
|
|
|
|
viewSearchResult : SearchResult.Model -> Html Msg
|
|
viewSearchResult result =
|
|
-- TODO call SearchResult.view to render a search result.
|
|
--
|
|
-- Hint: Use Html.App.map and UpdateSearchResult to translate from
|
|
-- SearchResult.Msg into the Msg type we have defined in this module.
|
|
div [] []
|
|
|
|
|
|
type Msg
|
|
= Search
|
|
| SetQuery String
|
|
| UpdateSearchResult Int SearchResult.Msg
|
|
| HandleSearchResponse (List SearchResult.Model)
|
|
| HandleSearchError Http.Error
|
|
|
|
|
|
update : Msg -> Model -> ( Model, Cmd Msg )
|
|
update msg model =
|
|
case msg of
|
|
Search ->
|
|
model ! [ searchFeed model.query ]
|
|
|
|
SetQuery query ->
|
|
{ model | query = query, errorMessage = Nothing } ! []
|
|
|
|
HandleSearchError error ->
|
|
case error of
|
|
Http.UnexpectedPayload str ->
|
|
{ model | errorMessage = Just str } ! []
|
|
|
|
_ ->
|
|
{ model | errorMessage = Just "Error loading search results" } ! []
|
|
|
|
HandleSearchResponse results ->
|
|
let
|
|
resultsById : Dict Int SearchResult.Model
|
|
resultsById =
|
|
results
|
|
|> List.map (\result -> ( result.id, result ))
|
|
|> Dict.fromList
|
|
in
|
|
{ model | results = resultsById } ! []
|
|
|
|
UpdateSearchResult id childMsg ->
|
|
case Dict.get id model.results of
|
|
Nothing ->
|
|
model ! []
|
|
|
|
Just childModel ->
|
|
let
|
|
( newChildModel, childCmd ) =
|
|
SearchResult.update childMsg childModel
|
|
|
|
cmd =
|
|
Cmd.map (UpdateSearchResult id) childCmd
|
|
|
|
newResults =
|
|
Dict.insert id newChildModel model.results
|
|
in
|
|
{ model | results = newResults } ! [ cmd ]
|