Co-authored-by: 賴鴻德 <[email protected]>

Co-authored-by: Pikacnu  <[email protected]>
Co-authored-by: Tuhacrt <[email protected]>

packages/domain_layer/src/player/checkPlayerHasUnrevealedCardOfHands.test.ts

@@ -0,0 +1,51 @@
+import { Creature, Status } from 'card';
+import { createIdToPlayer, createPlayer } from 'player';
+import { pipe } from 'fp-ts/function';
+import O from 'fp-ts/Option';
+
+import { checkPlayerHasUnrevealedCardOfHands } from './checkPlayerHasUnrevealedCardOfHands';
+
+describe('checkPlayerHasUnrevealedCardOfHands', () => {
+  it(`
+    given a player
+      hands [
+        { id: 1, status: 'UNREVEALED', creature: 'BAT' }
+      ]
+    when check player has unrevealed card
+    then
+      player has unrevealedCard
+  `, () => {
+    const hasUnrevealedCard = pipe(
+      { uid: '1', name: 'player1' },
+      createPlayer,
+      createIdToPlayer,
+      O.map((player) => {
+        player.hands = [
+          { id: 1, status: Status.Unrevealed, creature: Creature.Bat },
+        ];
+        return player;
+      }),
+      O.map(checkPlayerHasUnrevealedCardOfHands),
+    );
+
+    expect(hasUnrevealedCard).toStrictEqual(O.some(true));
+  });
+
+  it(`
+    given a player
+      hands [
+      ]
+    when check player has unrevealed card
+    then
+      player not has unrevealedCard
+  `, () => {
+    const hasUnrevealedCard = pipe(
+      { uid: '1', name: 'player1' },
+      createPlayer,
+      createIdToPlayer,
+      O.map(checkPlayerHasUnrevealedCardOfHands),
+    );
+
+    expect(hasUnrevealedCard).toStrictEqual(O.some(false));
+  });
+});

packages/domain_layer/src/player/checkPlayerHasUnrevealedCardOfHands.ts

@@ -0,0 +1,17 @@
+import { Player } from 'player';
+import { pipe } from 'fp-ts/function';
+import { prop } from 'remeda';
+
+export interface CheckPlayerHasUnrevealedCardOfHands {
+  (player: Player): boolean;
+}
+
+export const checkPlayerHasUnrevealedCardOfHands: CheckPlayerHasUnrevealedCardOfHands =
+  (player: Player) =>
+    pipe(
+      //
+      player,
+      prop('hands'),
+      prop('length'),
+      (length) => length > 0,
+    );