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Bingo.elm
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module Bingo where
import Html exposing (..)
import Html.Attributes exposing (..)
import Html.Events exposing (..)
import Signal exposing (Address)
import String exposing (toUpper, repeat , trimRight)
import BingoUtils as Utils
-- MODEL
type alias Entry =
{ phrase: String,
points: Int,
wasSpoken: Bool,
id: Int
}
type alias Model =
{
entries: List Entry,
phraseInput: String,
pointsInput: String,
nextID: Int,
ascSort: Bool
}
newEntry : String -> Int -> Int -> Entry
newEntry phrase points id =
{ phrase = phrase,
points = points,
wasSpoken = False,
id = id
}
initialModel : Model
initialModel =
{ entries =
[ newEntry "Doing Agile" 200 2,
newEntry "In The Cloud" 300 3,
newEntry "Future-Proof" 100 1,
newEntry "Rock-Star" 400 4
],
phraseInput = "",
pointsInput = "",
nextID = 5,
ascSort = True
}
-- UPDATE
type Action
= NoOp
| Sort
| Delete Int
| Mark Int
| UpdatePhraseInput String
| UpdatePointsInput String
| Add
sortEntries : Model -> Model
sortEntries model =
let
chooseSortingMode e =
if model.ascSort then e.points else -e.points
in
{ model | entries <- List.sortBy chooseSortingMode model.entries}
update : Action -> Model -> Model
update action model =
case action of
NoOp ->
model
Sort ->
sortEntries {model | ascSort <- (not model.ascSort) }
Delete id ->
let
remainingEntries = List.filter (\e -> e.id /= id ) model.entries
in
{ model | entries <- remainingEntries }
Mark id ->
let
updateEntry e =
if e.id == id then {e | wasSpoken <- (not e.wasSpoken)} else e
in
{ model | entries <- List.map updateEntry model.entries }
UpdatePhraseInput contents ->
{ model | phraseInput <- contents }
UpdatePointsInput contents ->
{ model | pointsInput <- contents }
Add ->
let
entryToAdd =
newEntry model.phraseInput (Utils.parseInt model.pointsInput) model.nextID
isInvalid model =
String.isEmpty model.phraseInput || String.isEmpty model.pointsInput
in
if isInvalid model
then model
else
sortEntries { model |
phraseInput <- "",
pointsInput <- "",
entries <- entryToAdd :: model.entries,
nextID <- model.nextID + 1
}
-- VIEW
title: String -> Int -> Html
title message times =
message ++ " "
|> toUpper
|> repeat times
|> trimRight
|> text
pageHeader : Html
pageHeader =
h1 [ ] [ title "bingo!" 3 ]
pageFooter : Html
pageFooter =
footer [ ]
[ a [ href "https://pragmaticstudio.com" ]
[ text "The Pragmatic Studio" ]
]
entryItem : Address Action -> Entry -> Html
entryItem address entry =
li [ classList [ ("highlight", entry.wasSpoken) ],
onClick address (Mark entry.id)
]
[ span [ class "phrase" ] [ text entry.phrase ],
span [ class "points" ] [ text (toString entry.points) ],
button
[ class "delete", onClick address (Delete entry.id) ]
[ ]
]
totalPoints : List Entry -> Int
totalPoints entries =
entries
|> List.filter .wasSpoken
|> List.foldl (\e sum -> sum + e.points) 0
totalItem : Int -> Html
totalItem total =
li
[ class "total" ]
[ span [ class "label" ] [ text "total"],
span [ class "points" ] [ text (toString total)]
]
entryList : Address Action -> List Entry -> Html
entryList address entries =
let
entryItems = List.map (entryItem address) entries
items = entryItems ++ [ totalItem (totalPoints entries)]
in
ul [ ] items
entryForm: Address Action -> Model -> Html
entryForm address model =
div [ ]
[ input
[ type' "text",
placeholder "Phrase",
value model.phraseInput,
name "phrase",
autofocus True,
Utils.onInput address UpdatePhraseInput
]
[ ],
input
[ type' "number",
placeholder "Points",
value model.pointsInput,
name "points",
Utils.onInput address UpdatePointsInput
]
[ ],
button [ class "add", onClick address Add ] [ text "Add" ],
h2
[ ]
[ text (model.phraseInput ++ " " ++ model.pointsInput)]
]
view : Address Action -> Model -> Html
view address model =
div [ id "container" ]
[ pageHeader,
entryForm address model,
entryList address model.entries,
button
[ class "sort", onClick address Sort ]
[ text ("sort " ++ if not model.ascSort then "ascending" else "descending") ],
pageFooter
]