/
Main.elm
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/
Main.elm
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module Main exposing (..)
import Accessibility.Styled as Html exposing (Html)
import Browser exposing (Document)
import Css
import Css.Reset
import Dict exposing (Dict)
import Elo
import File exposing (File)
import File.Download as Download
import File.Select as Select
import History exposing (History)
import Html.Styled as WildWildHtml
import Html.Styled.Attributes as Attributes exposing (css)
import Html.Styled.Events as Events
import Html.Styled.Keyed as Keyed
import Json.Decode as Decode
import Json.Encode as Encode exposing (encode)
import Keyboard
import League exposing (League)
import Player exposing (Player)
import Random
import Task
type alias Flags =
()
type alias Model =
{ history : History League
-- view state: new player form
, newPlayerName : String
}
type Msg
= KeeperUpdatedNewPlayerName String
| KeeperWantsToAddNewPlayer
| KeeperWantsToRetirePlayer Player
| GotNextMatch (Maybe League.Match)
| MatchFinished League.Outcome
| KeeperWantsToSaveStandings
| KeeperWantsToLoadStandings
| SelectedStandingsFile File
| KeeperWantsToUndo
| KeeperWantsToRedo
| LoadedLeague (Result String League)
| IgnoredKey
init : Flags -> ( Model, Cmd Msg )
init _ =
( { history = History.init 50 League.init
, newPlayerName = ""
}
, Cmd.none
)
|> startNextMatchIfPossible
update : Msg -> Model -> ( Model, Cmd Msg )
update msg model =
case msg of
KeeperUpdatedNewPlayerName newPlayerName ->
( { model | newPlayerName = newPlayerName }
, Cmd.none
)
KeeperWantsToAddNewPlayer ->
( { model
| history = History.mapPush (League.addPlayer (Player.init model.newPlayerName)) model.history
, newPlayerName = ""
}
, Cmd.none
)
|> startNextMatchIfPossible
KeeperWantsToRetirePlayer player ->
( { model | history = History.mapPush (League.retirePlayer player) model.history }
, Cmd.none
)
|> startNextMatchIfPossible
GotNextMatch (Just match) ->
( { model | history = History.mapInPlace (League.startMatch match) model.history }
, Cmd.none
)
GotNextMatch Nothing ->
( model, Cmd.none )
MatchFinished outcome ->
( { model | history = History.mapPush (League.finishMatch outcome) model.history }
, Cmd.none
)
|> startNextMatchIfPossible
KeeperWantsToSaveStandings ->
( model
, Download.string
"standings.json"
"application/json"
(encode 2 (League.encode (History.current model.history)))
)
KeeperWantsToLoadStandings ->
( model
, Select.file [ "application/json" ] SelectedStandingsFile
)
SelectedStandingsFile file ->
( model
, File.toString file
|> Task.andThen
(\jsonString ->
case Decode.decodeString League.decoder jsonString of
Ok decoded ->
Task.succeed decoded
Err err ->
Task.fail (Decode.errorToString err)
)
|> Task.attempt LoadedLeague
)
KeeperWantsToUndo ->
( { model | history = History.goBack model.history |> Maybe.withDefault model.history }
, Cmd.none
)
KeeperWantsToRedo ->
( { model | history = History.goForward model.history |> Maybe.withDefault model.history }
, Cmd.none
)
LoadedLeague (Ok league) ->
( { model | history = History.init 50 league }
, Cmd.none
)
|> startNextMatchIfPossible
LoadedLeague (Err problem) ->
-- TODO: show a problem
( model, Cmd.none )
IgnoredKey ->
( model, Cmd.none )
subscriptions : Model -> Sub Msg
subscriptions model =
case League.currentMatch (History.current model.history) of
Just (League.Match left right) ->
Keyboard.downs
(\rawKey ->
case Keyboard.navigationKey rawKey of
Just Keyboard.ArrowLeft ->
MatchFinished (League.Win { won = left, lost = right })
Just Keyboard.ArrowRight ->
MatchFinished (League.Win { won = right, lost = left })
Just Keyboard.ArrowUp ->
MatchFinished (League.Draw { playerA = left, playerB = right })
_ ->
IgnoredKey
)
Nothing ->
Sub.none
startNextMatchIfPossible : ( Model, Cmd Msg ) -> ( Model, Cmd Msg )
startNextMatchIfPossible ( model, cmd ) =
if League.currentMatch (History.current model.history) /= Nothing then
-- there's a match already in progress; no need to overwrite it.
( model, cmd )
else
( model
, Cmd.batch
[ cmd
, Random.generate GotNextMatch (League.nextMatch (History.current model.history))
]
)
openSans : Css.Style
openSans =
Css.fontFamilies [ "'Open Sans'", "sans-serif" ]
view : Model -> Document Msg
view model =
{ title = "Elo Anything!"
, body =
[ Css.Reset.meyerV2
, Css.Reset.borderBoxV201408
, WildWildHtml.node "style" [] [ Html.text """
@font-face {
font-family: "Open Sans";
src: url("/fonts/OpenSans-Regular-webfont.woff");
font-weight: 500;
}
@font-face {
font-family: "Open Sans";
src: url("/fonts/OpenSans-Semibold-webfont.woff");
font-weight: 600;
}
""" ]
, Html.div [ css [ Css.width (Css.pct 100) ] ]
[ Html.main_
[ css
[ Css.maxWidth (Css.px 1024)
, Css.margin2 Css.zero Css.auto
]
]
[ currentMatch model
, rankings model
, Html.section
[ css [ Css.textAlign Css.center, Css.marginTop (Css.px 32) ] ]
[ blueButton "Save Standings" (Just KeeperWantsToSaveStandings)
, blueButton "Load Standings" (Just KeeperWantsToLoadStandings)
]
]
]
]
|> List.map Html.toUnstyled
}
currentMatch : Model -> Html Msg
currentMatch model =
case League.currentMatch (History.current model.history) of
Nothing ->
Html.div
[ css
[ openSans
, Css.textAlign Css.center
, Css.width (Css.pct 50)
, Css.margin2 (Css.px 32) Css.auto
]
]
[ Html.h1
[ css
[ Css.fontSize (Css.px 32)
, Css.marginBottom (Css.px 18)
, Css.fontWeight (Css.int 600)
]
]
[ Html.text "Elo Anything" ]
, Html.p
[ css
[ Css.fontSize (Css.px 24)
, Css.lineHeight (Css.px 32)
, Css.marginBottom (Css.px 18)
]
]
[ Html.text "No current match. To get started, add at least two players!" ]
, blueButton "Load Standings" (Just KeeperWantsToLoadStandings)
]
Just (League.Match playerA playerB) ->
let
chanceAWins =
Elo.odds playerA.rating playerB.rating
in
Html.section
[ css
[ Css.width (Css.pct 80)
, Css.margin2 (Css.px 32) Css.auto
]
]
[ Html.div
[ css
[ Css.borderRadius (Css.px 5)
, Css.overflow Css.hidden
, Css.height (Css.px 5)
, Css.width (Css.pct 100)
, Css.backgroundColor (Css.hex "EEE")
]
]
[ Html.div
[ css
[ Css.width (Css.pct (100 * chanceAWins))
, Css.height (Css.pct 100)
, Css.backgroundColor (Css.hex "6DD400")
]
]
[]
]
, Html.div
[ css
[ Css.displayFlex
, Css.alignItems Css.center
, Css.paddingTop (Css.px 32)
]
]
[ activePlayer playerA
, Html.p
[ css
[ openSans
, Css.width (Css.pct 20)
, Css.textAlign Css.center
]
]
[ Html.text "vs." ]
, activePlayer playerB
]
, Html.div
[ css
[ Css.displayFlex
, Css.paddingTop (Css.px 32)
, Css.textAlign Css.center
]
]
[ Html.div
[ css [ Css.width (Css.pct 40) ] ]
[ blueButton "Winner!" (Just (MatchFinished (League.Win { lost = playerB, won = playerA }))) ]
, Html.div
[ css [ Css.width (Css.pct 20) ] ]
[ blueButton "Tie!" (Just (MatchFinished (League.Draw { playerA = playerA, playerB = playerB }))) ]
, Html.div
[ css [ Css.width (Css.pct 40) ] ]
[ blueButton "Winner!" (Just (MatchFinished (League.Win { won = playerB, lost = playerA }))) ]
]
, Html.div
[ css
[ Css.displayFlex
, Css.padding4 (Css.px 32) (Css.pct 20) Css.zero (Css.pct 20)
, Css.justifyContent Css.spaceAround
]
]
[ blueButton "Undo" (Maybe.map (\_ -> KeeperWantsToUndo) (History.peekBack model.history))
, blueButton "Redo" (Maybe.map (\_ -> KeeperWantsToRedo) (History.peekForward model.history))
]
]
button : Css.Color -> String -> Maybe Msg -> Html Msg
button baseColor label maybeMsg =
Html.button
[ css
[ Css.paddingTop (Css.px 6)
, Css.paddingBottom (Css.px 10)
, Css.paddingLeft (Css.px 15)
, Css.paddingRight (Css.px 15)
, Css.margin2 Css.zero (Css.px 10)
, Css.minWidth (Css.px 100)
, case maybeMsg of
Just _ ->
Css.backgroundColor baseColor
Nothing ->
Css.backgroundColor (Css.hex "DDD")
, Css.border Css.zero
, Css.borderRadius (Css.px 4)
, Css.boxShadow6 Css.inset Css.zero (Css.px -4) Css.zero Css.zero (Css.rgba 0 0 0 0.1)
, Css.cursor Css.pointer
-- font
, Css.fontSize (Css.px 14)
, Css.fontWeight (Css.int 600)
, Css.color (Css.hex "FFF")
]
, case maybeMsg of
Just msg ->
Events.onClick msg
Nothing ->
Attributes.disabled True
]
[ Html.text label ]
blueButton : String -> Maybe Msg -> Html Msg
blueButton =
button (Css.hex "0091FF")
greenButton : String -> Maybe Msg -> Html Msg
greenButton =
button (Css.hex "6DD400")
redButton : String -> Maybe Msg -> Html Msg
redButton =
button (Css.hex "E02020")
activePlayer : Player -> Html msg
activePlayer player =
Html.h2
[ css
[ Css.width (Css.pct 40)
, Css.maxWidth (Css.pct 45)
, Css.textAlign Css.center
, Css.fontSize (Css.px 24)
, openSans
]
]
[ Html.text player.name ]
rankings : Model -> Html Msg
rankings model =
let
previousStandings =
History.peekBack model.history
|> Maybe.withDefault (History.current model.history)
|> League.players
|> List.sortBy (\player -> -player.rating)
|> List.indexedMap (\rank player -> ( player.name, rank ))
|> Dict.fromList
numeric =
Css.batch
[ Css.fontWeight (Css.int 600)
, Css.fontSize (Css.px 21)
, Css.verticalAlign Css.middle
, openSans
]
textual =
Css.batch
[ Css.fontWeight (Css.int 500)
, Css.fontSize (Css.px 18)
, Css.lineHeight (Css.px 24)
, Css.verticalAlign Css.middle
, openSans
, Css.paddingLeft (Css.px 15)
]
shrinkWidth =
Css.batch
[ Css.paddingLeft (Css.px 15)
, Css.paddingRight (Css.px 15)
, Css.width (Css.pct 1)
]
left =
Css.textAlign Css.left
center =
Css.textAlign Css.center
header =
Css.batch
[ Css.paddingRight (Css.px 15)
, Css.paddingLeft (Css.px 15)
, Css.verticalAlign Css.middle
-- font
, openSans
, Css.fontWeight (Css.int 600)
-- separators
, Css.borderRight3 (Css.px 1) Css.solid (Css.hex "B1BECE")
, Css.lastChild [ Css.borderRightWidth Css.zero ]
]
in
History.current model.history
|> League.players
|> List.sortBy (\player -> -player.rating)
|> List.indexedMap
(\rank player ->
let
previousRank =
Dict.get player.name previousStandings
|> Maybe.withDefault rank
isPlaying =
History.current model.history
|> League.currentMatch
|> Maybe.map (\(League.Match a b) -> player == a || player == b)
|> Maybe.withDefault False
in
( player.name
, Html.tr
[ css [ Css.height (Css.px 60) ] ]
[ Html.td
[ css
[ Css.verticalAlign Css.middle
, Css.textAlign Css.center
]
]
(if isPlaying then
[ circle (Css.hex "EFE700") ]
else if rank < previousRank then
[ upArrow (Css.hex "6DD400")
, Html.span
[ css
[ openSans
, Css.color (Css.hex "6DD400")
, Css.fontSize (Css.px 14)
]
]
[ Html.text (String.fromInt (previousRank - rank)) ]
]
else if rank > previousRank then
[ downArrow (Css.hex "E02020")
, Html.span
[ css
[ openSans
, Css.color (Css.hex "E02020")
, Css.fontSize (Css.px 14)
]
]
[ Html.text (String.fromInt (abs (previousRank - rank))) ]
]
else
[ Html.text "" ]
)
, Html.td
[ css [ numeric, shrinkWidth, center ] ]
[ Html.text (String.fromInt (rank + 1)) ]
, Html.td
[ css [ numeric, shrinkWidth, center ] ]
[ Html.text (String.fromInt player.rating) ]
, Html.td
[ css [ numeric, shrinkWidth, center ] ]
[ Html.text (String.fromInt player.matches) ]
, Html.td
[ css [ textual, left ] ]
[ Html.text player.name ]
, Html.td
[ css [ textual, shrinkWidth, center ] ]
[ redButton "Retire" (Just (KeeperWantsToRetirePlayer player)) ]
]
)
)
|> (::)
( "players-header"
, Html.tr
[ css [ Css.height (Css.px 45) ] ]
[ Html.th [ css [ Css.width (Css.px 20) ] ] []
, Html.th [ css [ header, center ] ] [ Html.text "Rank" ]
, Html.th [ css [ header, center ] ] [ Html.text "Rating" ]
, Html.th [ css [ header, center ] ] [ Html.text "Matches" ]
, Html.th [ css [ header, left ] ] [ Html.text "Name" ]
, Html.th [ css [ header, center ] ] [ Html.text "Actions" ]
]
)
|> (\tableGuts ->
tableGuts
++ [ ( "add-player-form"
, Html.tr
[ css [ Css.height (Css.px 60) ] ]
[ Html.td [] []
, Html.td
[ css [ numeric, shrinkWidth, center, Css.color (Css.hex "A6A6A6") ] ]
[ Html.text "-" ]
, Html.td
[ css [ numeric, shrinkWidth, center, Css.color (Css.hex "A6A6A6") ] ]
[ Html.text (String.fromInt Elo.initialRating) ]
, Html.td
[ css [ numeric, shrinkWidth, center, Css.color (Css.hex "A6A6A6") ] ]
[ Html.text "0" ]
, Html.td
[ css [ textual, left ] ]
[ Html.inputText model.newPlayerName
[ Events.onInput KeeperUpdatedNewPlayerName
, Events.on "keydown"
(Decode.field "key" Decode.string
|> Decode.andThen
(\key ->
case key of
"Enter" ->
Decode.succeed KeeperWantsToAddNewPlayer
_ ->
Decode.fail "ignoring"
)
)
, css
[ Css.border Css.zero
, Css.fontSize (Css.px 18)
, Css.padding2 (Css.px 5) (Css.px 15)
, Css.width (Css.calc (Css.pct 100) Css.minus (Css.px 15))
, Css.boxShadow6 Css.inset Css.zero (Css.px 1) (Css.px 2) Css.zero (Css.rgba 0 0 0 0.5)
, Css.borderRadius (Css.px 5)
]
]
]
, Html.td
[ css [ numeric, shrinkWidth, center ] ]
[ greenButton "Add" (Just KeeperWantsToAddNewPlayer) ]
]
)
]
)
|> Keyed.node "table"
[ css
[ Css.width (Css.pct 80)
, Css.margin2 Css.zero Css.auto
, Css.borderCollapse Css.collapse
]
]
upArrow : Css.Color -> Html msg
upArrow color =
Html.div
[ css
[ Css.width Css.zero
, Css.height Css.zero
, Css.borderLeft3 (Css.px 5) Css.solid Css.transparent
, Css.borderRight3 (Css.px 5) Css.solid Css.transparent
, Css.borderBottom3 (Css.px 10) Css.solid color
, Css.display Css.inlineBlock
, Css.margin4 (Css.px 2) (Css.px 5) (Css.px 2) (Css.px 2)
]
]
[]
downArrow : Css.Color -> Html msg
downArrow color =
Html.div
[ css
[ Css.width Css.zero
, Css.height Css.zero
, Css.borderLeft3 (Css.px 5) Css.solid Css.transparent
, Css.borderRight3 (Css.px 5) Css.solid Css.transparent
, Css.borderTop3 (Css.px 10) Css.solid color
, Css.display Css.inlineBlock
, Css.margin4 (Css.px 2) (Css.px 5) (Css.px 2) (Css.px 2)
]
]
[]
circle : Css.Color -> Html msg
circle color =
Html.div
[ css
[ Css.width (Css.px 10)
, Css.height (Css.px 10)
, Css.borderRadius (Css.pct 100)
, Css.backgroundColor color
, Css.margin2 Css.zero Css.auto
]
]
[]
main : Program Flags Model Msg
main =
Browser.document
{ init = init
, update = update
, view = view
, subscriptions = subscriptions
}