Drop support for PracticeMode

For now, I'd like to support selecting keys and whitelisting inversions.

website/sandbox/learnpianochords/src/Preferences.elm

@@ -150,13 +150,5 @@ render model =
             { tempo = model.tempo
             , handleInput = State.SetTempo
             }
-        , case model.practiceMode of
+        , keyCheckboxes model
-            State.KeyMode ->
-                keyCheckboxes model
-
-            State.FineTuneMode ->
-                div []
-                    [ inversionCheckboxes model.whitelistedInversions
-                    , chordTypeCheckboxes model.whitelistedChordTypes
-                    ]
         ]

website/sandbox/learnpianochords/src/State.elm

@@ -16,7 +16,6 @@ type Msg
     | TogglePitchClass Theory.PitchClass
     | ToggleKey Theory.Key
     | DoNothing
-    | SetPracticeMode PracticeMode
     | SetView View
     | ToggleFlashCard
 
@@ -27,13 +26,6 @@ type View
     | Overview
 
 
-{-| Control the type of practice you'd like.
--}
-type PracticeMode
-    = KeyMode
-    | FineTuneMode
-
-
 type alias Model =
     { whitelistedChords : List Theory.Chord
     , whitelistedChordTypes : List Theory.ChordType
@@ -45,7 +37,6 @@ type alias Model =
     , tempo : Int
     , firstNote : Theory.Note
     , lastNote : Theory.Note
-    , practiceMode : PracticeMode
     , view : View
     , showFlashCard : Bool
     }
@@ -70,24 +61,9 @@ init =
 
         keys =
             [ { pitchClass = Theory.C, mode = Theory.MajorMode } ]
-
-        practiceMode =
-            KeyMode
     in
-    { practiceMode = practiceMode
+    { whitelistedChords =
-    , whitelistedChords =
-        case practiceMode of
-            KeyMode ->
         keys |> List.concatMap Theory.chordsForKey
-
-            FineTuneMode ->
-                Theory.allChords
-                    { start = firstNote
-                    , end = lastNote
-                    , inversions = inversions
-                    , chordTypes = chordTypes
-                    , pitchClasses = pitchClasses
-                    }
     , whitelistedChordTypes = chordTypes
     , whitelistedInversions = inversions
     , whitelistedPitchClasses = pitchClasses
@@ -110,14 +86,6 @@ update msg model =
         DoNothing ->
             ( model, Cmd.none )
 
-        SetPracticeMode practiceMode ->
-            ( { model
-                | practiceMode = practiceMode
-                , isPaused = True
-              }
-            , Cmd.none
-            )
-
         SetView x ->
             ( { model
                 | view = x