b557ee0842
Link to fuzz test docs and Fuzzer docs Move part9 to be part12 Update part11 Update 12, and some other Mains Rearrange things, drop 2 modules Add a new part12 Fix READMEs Move some things up a directory Update part11 Use ! [] Update parts7-9 Fix part12g Swap part11 and part12 Fix readmes for part11 and part12 Add HtmlRunner to part8 Update part8 and part9 READMEs rm part10/test
147 lines
4.0 KiB
Elm
147 lines
4.0 KiB
Elm
module ElmHub exposing (..)
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import Html exposing (..)
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import Html.Attributes exposing (..)
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import Html.Events exposing (..)
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import Html.App
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import Http
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import Auth
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import Task exposing (Task)
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import Json.Decode exposing (Decoder)
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import Dict exposing (Dict)
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import SearchResult exposing (ResultId)
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searchFeed : String -> Cmd Msg
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searchFeed query =
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let
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url =
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"https://api.github.com/search/repositories?access_token="
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++ Auth.token
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++ "&q="
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++ query
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++ "+language:elm&sort=stars&order=desc"
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in
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Task.perform HandleSearchError HandleSearchResponse (Http.get responseDecoder url)
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responseDecoder : Decoder (List SearchResult.Model)
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responseDecoder =
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Json.Decode.at [ "items" ] (Json.Decode.list SearchResult.decoder)
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type alias Model =
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{ query : String
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, results : Dict ResultId SearchResult.Model
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, errorMessage : Maybe String
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}
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initialModel : Model
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initialModel =
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{ query = "tutorial"
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, results = Dict.empty
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, errorMessage = Nothing
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}
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view : Model -> Html Msg
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view model =
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div [ class "content" ]
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[ header []
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[ h1 [] [ text "ElmHub" ]
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, span [ class "tagline" ] [ text "“Like GitHub, but for Elm things.”" ]
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]
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, input [ class "search-query", onInput SetQuery, defaultValue model.query ] []
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, button [ class "search-button", onClick Search ] [ text "Search" ]
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, viewErrorMessage model.errorMessage
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, ul [ class "results" ] (viewSearchResults model.results)
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]
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viewErrorMessage : Maybe String -> Html a
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viewErrorMessage errorMessage =
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case errorMessage of
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Just message ->
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div [ class "error" ] [ text message ]
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Nothing ->
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text ""
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viewSearchResults : Dict ResultId SearchResult.Model -> List (Html Msg)
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viewSearchResults results =
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results
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|> Dict.values
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|> List.sortBy (.stars >> negate)
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|> filterResults
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|> List.map viewSearchResult
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filterResults : List SearchResult.Model -> List SearchResult.Model
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filterResults results =
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-- TODO filter out repos with 0 stars
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-- using a case-expression rather than List.filter
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results
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viewSearchResult : SearchResult.Model -> Html Msg
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viewSearchResult result =
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result
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|> SearchResult.view
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|> Html.App.map (UpdateSearchResult result.id)
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type Msg
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= Search
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| SetQuery String
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| UpdateSearchResult ResultId SearchResult.Msg
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| HandleSearchResponse (List SearchResult.Model)
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| HandleSearchError Http.Error
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update : Msg -> Model -> ( Model, Cmd Msg )
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update msg model =
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case msg of
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Search ->
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model ! [ searchFeed model.query ]
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SetQuery query ->
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{ model | query = query, errorMessage = Nothing } ! []
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HandleSearchError error ->
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case error of
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Http.UnexpectedPayload str ->
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{ model | errorMessage = Just str } ! []
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_ ->
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{ model | errorMessage = Just "Error loading search results" } ! []
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HandleSearchResponse results ->
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let
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resultsById : Dict ResultId SearchResult.Model
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resultsById =
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results
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|> List.map (\result -> ( result.id, result ))
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|> Dict.fromList
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in
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{ model | results = resultsById } ! []
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UpdateSearchResult id childMsg ->
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case Dict.get id model.results of
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Nothing ->
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model ! []
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Just childModel ->
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let
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( newChildModel, childCmd ) =
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SearchResult.update childMsg childModel
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cmd =
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Cmd.map (UpdateSearchResult id) childCmd
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newResults =
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Dict.insert id newChildModel model.results
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in
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{ model | results = newResults } ! [ cmd ]
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