332 lines
9.0 KiB
Elm
332 lines
9.0 KiB
Elm
port module ElmHub exposing (..)
|
||
|
||
import Html exposing (..)
|
||
import Html.Attributes exposing (class, target, href, defaultValue, type_, checked, placeholder, value)
|
||
import Html.Events exposing (..)
|
||
import Html.Lazy exposing (lazy, lazy3)
|
||
import Auth
|
||
import Json.Decode exposing (Decoder)
|
||
import Json.Decode.Pipeline exposing (..)
|
||
import String
|
||
import Table
|
||
|
||
|
||
responseDecoder : Decoder (List SearchResult)
|
||
responseDecoder =
|
||
Json.Decode.at [ "items" ] (Json.Decode.list searchResultDecoder)
|
||
|
||
|
||
searchResultDecoder : Decoder SearchResult
|
||
searchResultDecoder =
|
||
decode SearchResult
|
||
|> required "id" Json.Decode.int
|
||
|> required "full_name" Json.Decode.string
|
||
|> required "stargazers_count" Json.Decode.int
|
||
|
||
|
||
type alias Model =
|
||
{ query : String
|
||
, results : List SearchResult
|
||
, errorMessage : Maybe String
|
||
, options : SearchOptions
|
||
, tableState : Table.State
|
||
}
|
||
|
||
|
||
type alias SearchOptions =
|
||
{ minStars : Int
|
||
, minStarsError : Maybe String
|
||
, searchIn : String
|
||
, userFilter : String
|
||
}
|
||
|
||
|
||
type alias SearchResult =
|
||
{ id : Int
|
||
, name : String
|
||
, stars : Int
|
||
}
|
||
|
||
|
||
initialModel : Model
|
||
initialModel =
|
||
{ query = "tutorial"
|
||
, results = []
|
||
, errorMessage = Nothing
|
||
, options =
|
||
{ minStars = 0
|
||
, minStarsError = Nothing
|
||
, searchIn = "name"
|
||
, userFilter = ""
|
||
}
|
||
, tableState = Table.initialSort "Stars"
|
||
}
|
||
|
||
|
||
init : ( Model, Cmd Msg )
|
||
init =
|
||
( initialModel, githubSearch (getQueryString initialModel) )
|
||
|
||
|
||
subscriptions : Model -> Sub Msg
|
||
subscriptions _ =
|
||
githubResponse decodeResponse
|
||
|
||
|
||
viewOptions : SearchOptions -> Html OptionsMsg
|
||
viewOptions opts =
|
||
div [ class "search-options" ]
|
||
[ div [ class "search-option" ]
|
||
[ label [ class "top-label" ] [ text "Search in" ]
|
||
, select [ onChange SetSearchIn, value opts.searchIn ]
|
||
[ option [ value "name" ] [ text "Name" ]
|
||
, option [ value "description" ] [ text "Description" ]
|
||
, option [ value "name,description" ] [ text "Name and Description" ]
|
||
]
|
||
]
|
||
, div [ class "search-option" ]
|
||
[ label [ class "top-label" ] [ text "Owned by" ]
|
||
, input
|
||
[ type_ "text"
|
||
, placeholder "Enter a username"
|
||
-- TODO replace opts.userFilter with the following:
|
||
--
|
||
-- (Debug.log "username" opts.userFilter)
|
||
--
|
||
-- This way, we'll see console output whenever this gets run!
|
||
, defaultValue opts.userFilter
|
||
, onInput SetUserFilter
|
||
]
|
||
[]
|
||
]
|
||
, div [ class "search-option" ]
|
||
[ label [ class "top-label" ] [ text "Minimum Stars" ]
|
||
, input
|
||
[ type_ "text"
|
||
, onBlurWithTargetValue SetMinStars
|
||
, defaultValue (toString opts.minStars)
|
||
]
|
||
[]
|
||
, viewMinStarsError opts.minStarsError
|
||
]
|
||
]
|
||
|
||
|
||
viewMinStarsError : Maybe String -> Html msg
|
||
viewMinStarsError message =
|
||
case message of
|
||
Nothing ->
|
||
text " "
|
||
|
||
Just errorMessage ->
|
||
div [ class "stars-error" ] [ text errorMessage ]
|
||
|
||
|
||
type Msg
|
||
= Search
|
||
| Options OptionsMsg
|
||
| SetQuery String
|
||
| DeleteById Int
|
||
| HandleSearchResponse (List SearchResult)
|
||
| HandleSearchError (Maybe String)
|
||
| SetTableState Table.State
|
||
| DoNothing
|
||
|
||
|
||
update : Msg -> Model -> ( Model, Cmd Msg )
|
||
update msg model =
|
||
case msg of
|
||
Options optionsMsg ->
|
||
( { model | options = updateOptions optionsMsg model.options }, Cmd.none )
|
||
|
||
Search ->
|
||
( model, githubSearch (getQueryString model) )
|
||
|
||
SetQuery query ->
|
||
( { model | query = query }, Cmd.none )
|
||
|
||
HandleSearchResponse results ->
|
||
( { model | results = results }, Cmd.none )
|
||
|
||
HandleSearchError error ->
|
||
( { model | errorMessage = error }, Cmd.none )
|
||
|
||
DeleteById idToHide ->
|
||
let
|
||
newResults =
|
||
model.results
|
||
|> List.filter (\{ id } -> id /= idToHide)
|
||
|
||
newModel =
|
||
{ model | results = newResults }
|
||
in
|
||
( newModel, Cmd.none )
|
||
|
||
SetTableState tableState ->
|
||
( { model | tableState = tableState }, Cmd.none )
|
||
|
||
DoNothing ->
|
||
( model, Cmd.none )
|
||
|
||
|
||
onBlurWithTargetValue : (String -> msg) -> Attribute msg
|
||
onBlurWithTargetValue toMsg =
|
||
on "blur" (Json.Decode.map toMsg targetValue)
|
||
|
||
|
||
tableConfig : Table.Config SearchResult Msg
|
||
tableConfig =
|
||
Table.config
|
||
{ toId = .id >> toString
|
||
, toMsg = SetTableState
|
||
, columns = [ starsColumn, nameColumn ]
|
||
}
|
||
|
||
|
||
starsColumn : Table.Column SearchResult Msg
|
||
starsColumn =
|
||
Table.veryCustomColumn
|
||
{ name = "Stars"
|
||
, viewData = viewStars
|
||
, sorter = Table.increasingOrDecreasingBy (negate << .stars)
|
||
}
|
||
|
||
|
||
nameColumn : Table.Column SearchResult Msg
|
||
nameColumn =
|
||
Table.veryCustomColumn
|
||
{ name = "Name"
|
||
, viewData = viewSearchResult
|
||
, sorter = Table.increasingOrDecreasingBy .name
|
||
}
|
||
|
||
|
||
updateOptions : OptionsMsg -> SearchOptions -> SearchOptions
|
||
updateOptions optionsMsg options =
|
||
case optionsMsg of
|
||
SetMinStars minStarsStr ->
|
||
case String.toInt minStarsStr of
|
||
Ok minStars ->
|
||
{ options | minStars = minStars, minStarsError = Nothing }
|
||
|
||
Err _ ->
|
||
{ options
|
||
| minStarsError =
|
||
Just "Must be an integer!"
|
||
}
|
||
|
||
SetSearchIn searchIn ->
|
||
{ options | searchIn = searchIn }
|
||
|
||
SetUserFilter userFilter ->
|
||
{ options | userFilter = userFilter }
|
||
|
||
|
||
view : Model -> Html Msg
|
||
view model =
|
||
div [ class "content" ]
|
||
[ header []
|
||
[ h1 [] [ text "ElmHub" ]
|
||
, span [ class "tagline" ] [ text "Like GitHub, but for Elm things." ]
|
||
]
|
||
, div [ class "search" ]
|
||
-- TODO change this to (lazy viewOptions model.options)
|
||
-- and verify that it no longer shows the Debug.log message when
|
||
-- you type in the main search box.
|
||
--
|
||
-- Instead, the message should only appear once on page load,
|
||
-- and then again when interacting with the options themselves.
|
||
[ Html.map Options (viewOptions model.options)
|
||
, div [ class "search-input" ]
|
||
[ input [ class "search-query", onInput SetQuery, defaultValue model.query ] []
|
||
, button [ class "search-button", onClick Search ] [ text "Search" ]
|
||
]
|
||
]
|
||
, viewErrorMessage model.errorMessage
|
||
-- TODO add a lazy3 to wrap Table.view.
|
||
-- (We have no Debug.log for verification this time.)
|
||
, Table.view tableConfig model.tableState model.results
|
||
]
|
||
|
||
|
||
viewErrorMessage : Maybe String -> Html msg
|
||
viewErrorMessage errorMessage =
|
||
case errorMessage of
|
||
Just message ->
|
||
div [ class "error" ] [ text message ]
|
||
|
||
Nothing ->
|
||
text ""
|
||
|
||
|
||
viewStars : SearchResult -> Table.HtmlDetails Msg
|
||
viewStars result =
|
||
Table.HtmlDetails []
|
||
[ span [ class "star-count" ] [ text (toString result.stars) ] ]
|
||
|
||
|
||
viewSearchResult : SearchResult -> Table.HtmlDetails Msg
|
||
viewSearchResult result =
|
||
Table.HtmlDetails []
|
||
[ a [ href ("https://github.com/" ++ result.name), target "_blank" ]
|
||
[ text result.name ]
|
||
, button [ class "hide-result", onClick (DeleteById result.id) ]
|
||
[ text "X" ]
|
||
]
|
||
|
||
|
||
type OptionsMsg
|
||
= SetMinStars String
|
||
| SetSearchIn String
|
||
| SetUserFilter String
|
||
|
||
|
||
decodeGithubResponse : Json.Decode.Value -> Msg
|
||
decodeGithubResponse value =
|
||
case Json.Decode.decodeValue responseDecoder value of
|
||
Ok results ->
|
||
HandleSearchResponse results
|
||
|
||
Err err ->
|
||
HandleSearchError (Just err)
|
||
|
||
|
||
onChange : (String -> msg) -> Attribute msg
|
||
onChange toMsg =
|
||
on "change" (Json.Decode.map toMsg Html.Events.targetValue)
|
||
|
||
|
||
decodeResponse : Json.Decode.Value -> Msg
|
||
decodeResponse json =
|
||
case Json.Decode.decodeValue responseDecoder json of
|
||
Err err ->
|
||
HandleSearchError (Just err)
|
||
|
||
Ok results ->
|
||
HandleSearchResponse results
|
||
|
||
|
||
port githubSearch : String -> Cmd msg
|
||
|
||
|
||
port githubResponse : (Json.Decode.Value -> msg) -> Sub msg
|
||
|
||
|
||
getQueryString : Model -> String
|
||
getQueryString model =
|
||
-- See https://developer.github.com/v3/search/#example for how to customize!
|
||
"access_token="
|
||
++ Auth.token
|
||
++ "&q="
|
||
++ model.query
|
||
++ "+in:"
|
||
++ model.options.searchIn
|
||
++ "+stars:>="
|
||
++ (toString model.options.minStars)
|
||
++ "+language:elm"
|
||
++ (if String.isEmpty model.options.userFilter then
|
||
""
|
||
else
|
||
"+user:" ++ model.options.userFilter
|
||
)
|