Structure sorting

Sources/App/Model/Card/Card+Array.swift

@@ -0,0 +1,53 @@
+import Foundation
+
+typealias Trick = [Card]
+
+typealias Hand = [Card]
+
+extension Array where Element == Card {
+
+    var points: Int {
+        map { $0.points }
+        .reduce(0, +)
+    }
+
+    func highCardIndex(forGame game: GameType) -> Int {
+        game.sortingType.highCardIndex(cards: self)
+    }
+
+    func sortedCards(forGame game: GameType) -> [Card] {
+        sortedCards(order: game.sortingType)
+    }
+
+    func sortedCards(order: CardOrder.Type) -> [Card] {
+        order.sort(self)
+    }
+
+    func consecutiveTrumps(for game: GameType) -> Int {
+        game.sortingType.consecutiveTrumps(self)
+    }
+
+    func trumpCount(for game: GameType) -> Int {
+        game.sortingType.trumpCount(self)
+    }
+
+    func suitCount(_ suit: Card.Suit, in game: GameType) -> Int {
+        filter { card in
+            card.suit == suit && !game.sortingType.isTrump(card)
+        }.count
+    }
+
+    /**
+     Split cards into chunks to assign them to players.
+     - Note: The array must contain a multiple of the `size` parameter
+     */
+    func split(intoChunksOf size: Int) -> [Hand] {
+        stride(from: 0, to: count, by: size).map { i in
+            Array(self[i..<i+4])
+        }
+    }
+
+    var canOfferWedding: Bool {
+        NormalCardOrder.trumpCount(self) == 1
+    }
+}