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|
port module Client exposing (main)
import Array exposing (Array)
import Browser
import Html.Attributes
import Html.Events
import Html exposing (Html)
import Json.Decode
import Json.Encode
import Messages exposing (BlackCard, WhiteCard, GameView)
import Url exposing (Url)
port webSocketIn : (String -> msg) -> Sub msg
port webSocketOut : String -> Cmd msg
type Msg
= Ignore
| Send
| WebSocketIn String
-- Name changes
| ChangeMyName String
| SubmitMyName
-- Card selection
| SelectWhiteCard WhiteCard
| ProposeWhiteCards
type alias Cards = {black : Array String, white : Array String}
type alias GameState =
{ cards : Cards
, view : GameView
, changeMyName : String
, selectedWhiteCard : Maybe WhiteCard
}
type Model
= Error String
| Connecting
{ roomId : String
}
| Game GameState
parseRoomId : Url -> Result String String
parseRoomId url = case String.split "/" url.path of
_ :: "rooms" :: roomId :: _ -> Ok roomId
_ -> Err <| "Invalid path: " ++ url.path
view : Model -> List (Html Msg)
view model = case model of
Error str ->
[ Html.h1 [] [Html.text "Error"]
, Html.p [] [Html.text str]
]
Connecting state ->
[ Html.h1 []
[Html.text <| "Connecting to room " ++ state.roomId ++ "..."]
]
Game game ->
[ Html.h1 [] [Html.text "Opponents"]
, Html.ul [] <| List.map
(\p -> Html.li [] [Html.text p])
game.view.opponents
, Html.h1 [] [Html.text "You"]
, Html.form
[ Html.Attributes.action ""
, Html.Events.onSubmit SubmitMyName
]
[ Html.input
[ Html.Attributes.value game.changeMyName
, Html.Events.onInput ChangeMyName
]
[]
, Html.button
[ Html.Attributes.type_ "submit"
, Html.Attributes.disabled <|
game.view.myName == game.changeMyName
]
[Html.text "Update name"]
]
] ++
[viewTable game] ++
(List.map
(\c -> whiteCard game.cards c (cardIsSelected game c))
game.view.hand)
selectedWhiteCard : GameState -> Maybe WhiteCard
selectedWhiteCard game = case game.view.table of
Messages.Proposing _ (Just my) -> Just my
_ -> game.selectedWhiteCard
cardIsSelected : GameState -> WhiteCard -> Bool
cardIsSelected game card = selectedWhiteCard game == Just card
viewTable : GameState -> Html Msg
viewTable game = case game.view.table of
Messages.Proposing c my -> Html.div [] <|
[ blackCard game.cards c <| case selectedWhiteCard game of
Nothing -> []
Just wc -> [wc]
, Html.button
[ Html.Attributes.disabled <| case my of
Just _ -> True
_ -> case selectedWhiteCard game of
Nothing -> True
Just _ -> False
, Html.Events.onClick ProposeWhiteCards
]
[Html.text "Propose"]
]
intersperseWith : List a -> a -> List a -> List a
intersperseWith values def list = case list of
[] -> []
x :: [] -> x :: []
x :: y :: t -> case values of
[] -> x :: def :: intersperseWith values def (y :: t)
v :: vs -> x :: v :: intersperseWith vs def (y :: t)
blackCard : Cards -> BlackCard -> List WhiteCard -> Html a
blackCard cards (Messages.BlackCard idx) whites =
let blank mbWhite = Html.span
[Html.Attributes.class "blank"] <|
case mbWhite of
Nothing -> []
Just w -> [Html.text <| whiteCardContent cards w] in
Html.div [Html.Attributes.class "card", Html.Attributes.class "black"] <|
intersperseWith (List.map (\c -> blank (Just c)) whites) (blank Nothing) <|
List.map Html.text <|
String.split "\\BLANK" <| Maybe.withDefault "" <|
Array.get idx cards.black
whiteCardContent : Cards -> WhiteCard -> String
whiteCardContent cards (Messages.WhiteCard idx) =
Maybe.withDefault "" <| Array.get idx cards.white
whiteCard : Cards -> WhiteCard -> Bool -> Html Msg
whiteCard cards c selected = Html.div
[ Html.Attributes.class "card"
, Html.Attributes.class "white"
, Html.Attributes.class <| if selected then "selected" else ""
, Html.Events.onClick <| SelectWhiteCard c
]
[ Html.text <| whiteCardContent cards c
]
subscriptions : Model -> Sub Msg
subscriptions model = webSocketIn WebSocketIn
send : Messages.ClientMessage -> Cmd Msg
send = webSocketOut << Json.Encode.encode 0 << Messages.jsonEncClientMessage
update : Msg -> Model -> (Model, Cmd Msg)
update msg model = case msg of
Ignore -> (model, Cmd.none)
Send -> (model, webSocketOut "Hi")
WebSocketIn json ->
case Json.Decode.decodeString Messages.jsonDecServerMessage json of
Err str -> (Error <| Json.Decode.errorToString str, Cmd.none)
Ok (Messages.Welcome playerId) ->
Debug.log ("Welcome " ++ String.fromInt playerId) (model, Cmd.none)
Ok Messages.Bye -> Debug.log "Bye" (model, Cmd.none)
Ok (Messages.SyncGameView gameView) ->
case model of
Game game -> (Game {game | view = gameView}, Cmd.none)
_ ->
( Game
{ cards = {black = Array.empty, white = Array.empty}
, view = gameView
, changeMyName = gameView.myName
, selectedWhiteCard = Nothing
}
, Cmd.none
)
Ok (Messages.SyncCards cards) ->
let arr =
{ black = Array.fromList cards.black
, white = Array.fromList cards.white
} in
case model of
Game game -> (Game {game | cards = arr}, Cmd.none)
_ -> (model, Cmd.none)
ChangeMyName name -> case model of
Game game -> (Game {game | changeMyName = name}, Cmd.none)
_ -> (model, Cmd.none)
SubmitMyName -> case model of
Game game -> (model, send <| Messages.ChangeMyName game.changeMyName)
_ -> (model, Cmd.none)
SelectWhiteCard card -> case model of
Game game -> (Game {game | selectedWhiteCard = Just card}, Cmd.none)
_ -> (model, Cmd.none)
ProposeWhiteCards -> case model of
Game game ->
( Game {game | selectedWhiteCard = Nothing}
, case game.selectedWhiteCard of
Nothing -> Cmd.none
Just c -> send <| Messages.ProposeWhiteCards c
)
_ -> (model, Cmd.none)
main : Program () Model Msg
main = Browser.application
{ init = \() url key -> case parseRoomId url of
Err str -> (Error <| "Could not parse room ID: " ++ str, Cmd.none)
Ok roomId -> (Connecting {roomId = roomId}, Cmd.none)
, update = update
, subscriptions = subscriptions
, view = \model -> {title = "Client", body = view model}
, onUrlChange = \url -> Ignore
, onUrlRequest = \urlRequest -> Ignore
}
|
