module Examples.TextArea exposing (Msg, State, example)

{-|

@docs Msg, State, example

-}

import Category exposing (Category(..))
import Dict exposing (Dict)
import Example exposing (Example)
import Html.Styled as Html
import Nri.Ui.Checkbox.V5 as Checkbox
import Nri.Ui.Heading.V2 as Heading
import Nri.Ui.TextArea.V4 as TextArea


{-| -}
type Msg
    = InputGiven Id String
    | ToggleLabel Bool
    | ToggleAutoResize Bool
    | ToggleErrorState Bool


{-| -}
type alias State =
    { textValues : Dict Int String
    , showLabel : Checkbox.IsSelected
    , isInError : Checkbox.IsSelected
    , autoResize : Checkbox.IsSelected
    }


{-| -}
example : Example State Msg
example =
    { name = "TextArea"
    , version = 4
    , state = init
    , update = update
    , subscriptions = \_ -> Sub.none
    , categories = [ Inputs ]
    , keyboardSupport = []
    , preview = []
    , view =
        \ellieLinkConfig state ->
            [ Heading.h1 [] [ Html.text "Textarea controls" ]
            , Html.div []
                [ Checkbox.viewWithLabel
                    { identifier = "show-textarea-label"
                    , label = "Show Label"
                    , setterMsg = ToggleLabel
                    , selected = state.showLabel
                    , disabled = False
                    , theme = Checkbox.Square
                    }
                , Checkbox.viewWithLabel
                    { identifier = "textarea-autoresize"
                    , label = "Autoresize"
                    , setterMsg = ToggleAutoResize
                    , selected = state.autoResize
                    , disabled = False
                    , theme = Checkbox.Square
                    }
                , Checkbox.viewWithLabel
                    { identifier = "textarea-isInError"
                    , label = "Show Error State"
                    , setterMsg = ToggleErrorState
                    , selected = state.isInError
                    , disabled = False
                    , theme = Checkbox.Square
                    }
                ]
            , TextArea.view
                { value = Maybe.withDefault "" <| Dict.get 1 state.textValues
                , autofocus = False
                , onInput = InputGiven 1
                , onBlur = Nothing
                , isInError = state.isInError == Checkbox.Selected
                , label = "TextArea.view"
                , height =
                    if state.autoResize == Checkbox.Selected then
                        TextArea.AutoResize TextArea.SingleLine

                    else
                        TextArea.Fixed
                , placeholder = "Placeholder"
                , showLabel = state.showLabel == Checkbox.Selected
                }
            , TextArea.writing
                { value = Maybe.withDefault "" <| Dict.get 2 state.textValues
                , autofocus = False
                , onInput = InputGiven 2
                , onBlur = Nothing
                , isInError = state.isInError == Checkbox.Selected
                , label = "TextArea.writing"
                , height =
                    if state.autoResize == Checkbox.Selected then
                        TextArea.AutoResize TextArea.DefaultHeight

                    else
                        TextArea.Fixed
                , placeholder = "Placeholder"
                , showLabel = state.showLabel == Checkbox.Selected
                }
            , TextArea.contentCreation
                { value = Maybe.withDefault "" <| Dict.get 3 state.textValues
                , autofocus = False
                , onInput = InputGiven 3
                , onBlur = Nothing
                , isInError = state.isInError == Checkbox.Selected
                , label = "TextArea.contentCreation"
                , height =
                    if state.autoResize == Checkbox.Selected then
                        TextArea.AutoResize TextArea.DefaultHeight

                    else
                        TextArea.Fixed
                , placeholder = "Placeholder"
                , showLabel = state.showLabel == Checkbox.Selected
                }
            , TextArea.writing
                { value = Maybe.withDefault "" <| Dict.get 4 state.textValues
                , autofocus = False
                , onInput = InputGiven 4
                , onBlur = Just (InputGiven 4 "Neener neener Blur happened")
                , isInError = state.isInError == Checkbox.Selected
                , label = "TextArea.writing onBlur demonstration"
                , height =
                    if state.autoResize == Checkbox.Selected then
                        TextArea.AutoResize TextArea.DefaultHeight

                    else
                        TextArea.Fixed
                , placeholder = "Placeholder"
                , showLabel = state.showLabel == Checkbox.Selected
                }
            ]
    }


{-| -}
init : State
init =
    { textValues = Dict.empty
    , showLabel = Checkbox.Selected
    , isInError = Checkbox.NotSelected
    , autoResize = Checkbox.NotSelected
    }


{-| -}
update : Msg -> State -> ( State, Cmd Msg )
update msg state =
    let
        toggle bool =
            if bool then
                Checkbox.Selected

            else
                Checkbox.NotSelected
    in
    case msg of
        InputGiven id newValue ->
            ( { state | textValues = Dict.insert id newValue state.textValues }
            , Cmd.none
            )

        ToggleLabel bool ->
            ( { state | showLabel = toggle bool }
            , Cmd.none
            )

        ToggleErrorState bool ->
            ( { state | isInError = toggle bool }
            , Cmd.none
            )

        ToggleAutoResize bool ->
            ( { state | autoResize = toggle bool }
            , Cmd.none
            )



-- INTERNAL


type alias Id =
    Int