166 lines
3.7 KiB
Elm
166 lines
3.7 KiB
Elm
module Main (..) where
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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 StartApp
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import Http
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import Task exposing (Task)
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import Effects exposing (Effects)
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import Json.Decode exposing (Decoder, (:=))
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import Json.Encode
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import Signal exposing (Address)
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main : Signal Html
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main =
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app.html
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app : StartApp.App Model
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app =
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StartApp.start
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{ view = view
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, update = update
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, init = ( initialModel, Effects.task (searchFeed initialModel.query) )
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, inputs = []
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}
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port tasks : Signal (Task Effects.Never ())
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port tasks =
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app.tasks
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searchFeed : String -> Task x Action
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searchFeed query =
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let
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-- See https://developer.github.com/v3/search/#example for how to customize!
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url =
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"https://api.github.com/search/repositories?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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performAction SetResults (\_ -> SetResults []) (Http.get responseDecoder url)
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responseDecoder : Decoder (List SearchResult)
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responseDecoder =
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"items" := Json.Decode.list searchResultDecoder
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searchResultDecoder : Decoder SearchResult
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searchResultDecoder =
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Json.Decode.object3
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SearchResult
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-- See https://developer.github.com/v3/search/#example
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("TODO what field goes here?" := Json.Decode.int)
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("TODO what field goes here?" := Json.Decode.string)
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("TODO what field goes here?" := Json.Decode.int)
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performAction : (a -> b) -> (y -> b) -> Task y a -> Task x b
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performAction successToAction errorToAction task =
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let
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successTask =
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Task.map successToAction task
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in
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Task.onError successTask (\err -> Task.succeed (errorToAction err))
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type alias Model =
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{ query : String
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, results : List SearchResult
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}
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type alias SearchResult =
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{ id : ResultId
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, name : String
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, stars : Int
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}
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type alias ResultId =
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Int
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initialModel : Model
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initialModel =
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{ query = "tutorial"
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, results = []
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}
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view : Address Action -> Model -> Html
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view address model =
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div
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[ class "content" ]
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[ header
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[]
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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 address SetQuery, defaultValue model.query ] []
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, button [ class "search-button" {- TODO on click, run a search -} ] [ text "Search" ]
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, ul
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[ class "results" ]
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(List.map (viewSearchResult address) model.results)
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]
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onInput address wrap =
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on "input" targetValue (\val -> Signal.message address (wrap val))
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defaultValue str =
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property "defaultValue" (Json.Encode.string str)
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viewSearchResult : Address Action -> SearchResult -> Html
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viewSearchResult address result =
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li
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[]
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[ span [ class "star-count" ] [ text (toString result.stars) ]
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, a
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[ href ("https://github.com/" ++ result.name), target "_blank" ]
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[ text result.name ]
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, button
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[ class "hide-result", onClick address (DeleteById result.id) ]
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[ text "X" ]
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]
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type Action
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= Search
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| SetQuery String
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| DeleteById ResultId
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| SetResults (List SearchResult)
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update : Action -> Model -> ( Model, Effects Action )
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update action model =
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case action of
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Search ->
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( model, Effects.none {- TODO use searchFeed to run a search -} )
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SetQuery query ->
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( { model | query = query }, Effects.none )
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SetResults results ->
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let
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newModel =
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{ model | results = results }
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in
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( newModel, Effects.none )
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DeleteById idToHide ->
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let
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newResults =
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List.filter (\{ id } -> id /= idToHide) model.results
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newModel =
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{ model | results = newResults }
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in
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( newModel, Effects.none )
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