Add delta signals chart

elm.json

@@ -30,7 +30,12 @@
         }
     },
     "test-dependencies": {
-        "direct": {},
-        "indirect": {}
+        "direct": {
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+        },
+        "indirect": {
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+            "elm/random": "1.0.0"
+        }
     }
 }

package-lock.json

@@ -8,7 +8,8 @@
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+        "chokidar": "^3.5.3",
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+        "which": "^2.0.2",
+        "xmlbuilder": "^15.1.1"
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+      "bin": {
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@@ -5130,7 +5195,6 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
       "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
-      "dev": true,
       "dependencies": {
         "is-number": "^7.0.0"
       },
@@ -5217,7 +5281,6 @@
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
       "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
-      "dev": true,
       "dependencies": {
         "isexe": "^2.0.0"
       },
@@ -5319,8 +5382,15 @@
     "node_modules/wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
-      "dev": true
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
+    },
+    "node_modules/xmlbuilder": {
+      "version": "15.1.1",
+      "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-15.1.1.tgz",
+      "integrity": "sha512-yMqGBqtXyeN1e3TGYvgNgDVZ3j84W4cwkOXQswghol6APgZWaff9lnbvN7MHYJOiXsvGPXtjTYJEiC9J2wv9Eg==",
+      "engines": {
+        "node": ">=8.0"
+      }
     },
     "node_modules/yallist": {
       "version": "4.0.0",

package.json

@@ -14,6 +14,7 @@
     "tailwindcss": "^3"
   },
   "dependencies": {
-    "elm-format": "^0.8.7"
+    "elm-format": "^0.8.7",
+    "elm-test": "^0.19.1-revision12"
   }
 }

src/Main.elm

@@ -206,6 +206,7 @@ viewDeck model =
             ]
         , viewCmcChart model
         , viewSignalsChart model
+        , viewSignalsDeltaChart model
         ]
 
 
@@ -236,7 +237,7 @@ viewSignalsChart : ReadyModel -> Html Msg
 viewSignalsChart model =
     let
         signals =
-            Signals.inferSignals (model.deckProgress == EntireDeck) model.database model.draft
+            Signals.inferSignalCounts (model.deckProgress == EntireDeck) model.database model.draft
 
         lines =
             C.series (first >> toFloat)
@@ -259,6 +260,33 @@ viewSignalsChart model =
         ]
 
 
+viewSignalsDeltaChart : ReadyModel -> Html Msg
+viewSignalsDeltaChart model =
+    let
+        signals =
+            Signals.inferSignalDelta (model.deckProgress == EntireDeck) model.database model.draft
+
+        lines =
+            C.series (first >> toFloat)
+                [ C.interpolated (second >> .blue) [ CA.color CA.blue ] []
+                , C.interpolated (second >> .red) [ CA.color CA.red ] []
+                , C.interpolated (second >> .black) [ CA.color "black" ] []
+                , C.interpolated (second >> .green) [ CA.color CA.green ] []
+                , C.interpolated (second >> .white) [ CA.color "white" ] []
+                ]
+                signals
+    in
+    div [ class "m-4" ]
+        [ C.chart
+            [ CA.height 300
+            ]
+            [ C.xLabels []
+            , C.yLabels [ CA.withGrid ]
+            , lines
+            ]
+        ]
+
+
 viewError : ErrorModel -> Html Msg
 viewError model =
     div [ class "error" ]

src/Signals.elm

@@ -16,8 +16,8 @@ type alias CardsSeenPerColor =
     }
 
 
-inferSignals : Bool -> Database -> Draft -> List ( Int, CardsSeenPerColor )
-inferSignals includeWholeDeck db draft =
+inferSignalCounts : Bool -> Database -> Draft -> List ( Int, CardsSeenPerColor )
+inferSignalCounts includeWholeDeck db draft =
     let
         numberOfPicks =
             if includeWholeDeck then
@@ -33,6 +33,52 @@ inferSignals includeWholeDeck db draft =
         |> List.map (\i -> ( i, countCardsInPicks db (List.take (i + 1) relevantPicks) ))
 
 
+type alias CardsSeenPerColorDelta =
+    { white : Float
+    , blue : Float
+    , black : Float
+    , red : Float
+    , green : Float
+    }
+
+
+inferSignalDelta : Bool -> Database -> Draft -> List ( Int, CardsSeenPerColorDelta )
+inferSignalDelta includeWholeDeck db draft =
+    let
+        numberOfPicks =
+            Zipper.length draft
+
+        expectedCountPerPick =
+            List.range 0 (numberOfPicks - 1) |> List.map expectedCardsSeenPerColor
+    in
+    List.zip (inferSignalCounts includeWholeDeck db draft) expectedCountPerPick
+        |> List.map
+            (\( ( pickNumber, cardsSeen ), expectedCount ) ->
+                ( pickNumber
+                , { white = toFloat cardsSeen.white - expectedCount
+                  , blue = toFloat cardsSeen.blue - expectedCount
+                  , black = toFloat cardsSeen.black - expectedCount
+                  , red = toFloat cardsSeen.red - expectedCount
+                  , green = toFloat cardsSeen.green - expectedCount
+                  }
+                )
+            )
+
+
+expectedCardsSeen : Int -> Int
+expectedCardsSeen pickNumber =
+    if pickNumber == 0 then
+        14
+
+    else
+        (14 - modBy 14 pickNumber) + expectedCardsSeen (pickNumber - 1)
+
+
+expectedCardsSeenPerColor : Int -> Float
+expectedCardsSeenPerColor pickNumber =
+    toFloat (expectedCardsSeen pickNumber) / 5.0
+
+
 countCardsInPicks : Database -> List Pick -> CardsSeenPerColor
 countCardsInPicks db picks =
     let

tests/TestSignals.elm

@@ -0,0 +1,21 @@
+module TestSignals exposing (..)
+
+import Expect exposing (Expectation)
+import Fuzz exposing (Fuzzer, int, list, string)
+import Signals
+import Test exposing (..)
+
+
+suite : Test
+suite =
+    describe "Signals"
+        [ test "expectedCardsSeen (0)" <|
+            \_ ->
+                Expect.equal (Signals.expectedCardsSeen 0) 14
+        , test "expectedCardsSeen (1)" <|
+            \_ ->
+                Expect.equal (Signals.expectedCardsSeen 1) (14 + 13)
+        , test "expectedCardsSeen (41)" <|
+            \_ ->
+                Expect.equal (Signals.expectedCardsSeen 41) 315
+        ]