module Preferences exposing (render)

import Html exposing (..)
import Html.Attributes exposing (..)
import Html.Events exposing (..)
import Icon
import Responsive
import State
import Tailwind
import Tempo
import Theory
import UI


selectKey :
    State.Model
    ->
        { relativeMajor : Theory.Key
        , relativeMinor : Theory.Key
        }
    -> Html State.Msg
selectKey model { relativeMajor, relativeMinor } =
    let
        active key =
            List.member key model.whitelistedKeys

        buttonLabel major minor =
            Theory.viewKey major ++ ", " ++ Theory.viewKey minor
    in
    div [ class "flex pt-0" ]
        [ UI.textToggleButton
            { label = buttonLabel relativeMajor relativeMinor
            , handleClick = State.ToggleKey relativeMajor
            , classes = [ "flex-1" ]
            , toggled = active relativeMajor
            }
        ]


chordTypeCheckboxes : List Theory.ChordType -> Html State.Msg
chordTypeCheckboxes chordTypes =
    ul []
        (Theory.allChordTypes
            |> List.map
                (\chordType ->
                    li []
                        [ label [] [ text (Theory.chordTypeName chordType) ]
                        , input
                            [ type_ "checkbox"
                            , onClick (State.ToggleChordType chordType)
                            , checked (List.member chordType chordTypes)
                            ]
                            []
                        ]
                )
        )


inversionCheckboxes : List Theory.ChordInversion -> Html State.Msg
inversionCheckboxes inversions =
    ul []
        (Theory.allInversions
            |> List.map
                (\inversion ->
                    li []
                        [ label [] [ text (Theory.inversionName inversion) ]
                        , input
                            [ type_ "checkbox"
                            , onClick (State.ToggleInversion inversion)
                            , checked (List.member inversion inversions)
                            ]
                            []
                        ]
                )
        )


keyCheckboxes : State.Model -> Html State.Msg
keyCheckboxes model =
    let
        majorKey pitchClass =
            { pitchClass = pitchClass, mode = Theory.MajorMode }

        minorKey pitchClass =
            { pitchClass = pitchClass, mode = Theory.MinorMode }

        circleOfFifths =
            [ ( Theory.C, Theory.A )
            , ( Theory.G, Theory.E )
            , ( Theory.D, Theory.B )
            , ( Theory.A, Theory.F_sharp )
            , ( Theory.E, Theory.C_sharp )
            , ( Theory.B, Theory.G_sharp )
            , ( Theory.F_sharp, Theory.D_sharp )
            , ( Theory.C_sharp, Theory.A_sharp )
            , ( Theory.G_sharp, Theory.F )
            , ( Theory.D_sharp, Theory.C )
            , ( Theory.A_sharp, Theory.G )
            , ( Theory.F, Theory.D )
            ]
    in
    div []
        [ h2
            [ [ "text-gray-500"
              , "text-center"
              , "pt-10"
              , Responsive.h2
              ]
                |> Tailwind.use
                |> class
            ]
            [ text "Select keys" ]
        , ul []
            (circleOfFifths
                |> List.map
                    (\( major, minor ) ->
                        selectKey model
                            { relativeMajor = majorKey major
                            , relativeMinor = minorKey minor
                            }
                    )
            )
        ]


closePreferences : Html State.Msg
closePreferences =
    button
        [ [ "w-48"
          , "lg:w-32"
          , "h-48"
          , "lg:h-32"
          , "absolute"
          , "right-0"
          , "top-0"
          , "z-10"
          ]
            |> Tailwind.use
            |> class
        , onClick (State.SetView State.Practice)
        ]
        [ Icon.close ]


render : State.Model -> Html State.Msg
render model =
    div [ class "pt-10 pb-20 px-10" ]
        [ closePreferences
        , Tempo.render
            { tempo = model.tempo
            , handleInput = State.SetTempo
            }
        , case model.practiceMode of
            State.KeyMode ->
                keyCheckboxes model

            State.FineTuneMode ->
                div []
                    [ inversionCheckboxes model.whitelistedInversions
                    , chordTypeCheckboxes model.whitelistedChordTypes
                    ]
        ]