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src/components/Controls/context/useControlsContext.ts

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+import { useCallback, useContext, useMemo, useState } from "react";
+import { ControlsContextType, GlobalConfigsTouched } from "./types";
+import {
+  GameSpecificConfigs,
+  GameContext,
+  GlobalConfigs,
+  RulesetName,
+  clearCanvas,
+  createGrid,
+} from "../../../internal";
+
+let initialGlobalConfigsTouched = {};
+Object.keys(RulesetName).forEach(
+  (key) => (initialGlobalConfigsTouched[RulesetName[key]] = false)
+);
+
+const useControlsContext = (): ControlsContextType => {
+  const {
+    currentGame,
+    gameSpecificConfigs,
+    globalConfigs,
+    paused,
+    setGameSpecificConfigs,
+    setGlobalConfigs,
+    setGrid,
+    togglePause,
+  } = useContext(GameContext);
+  const [newGlobalConfigs, setNewGlobalConfigs] = useState<GlobalConfigs>({
+    ...globalConfigs,
+  });
+  const [newGameSpecificConfigs, setNewGameSpecificConfigs] =
+    useState<GameSpecificConfigs>({
+      ...gameSpecificConfigs,
+    });
+  const [globalConfigsTouched, setGlobalConfigsTouched] =
+    useState<GlobalConfigsTouched>();
+
+  const start = useCallback(
+    (closeDrawer: () => void) => {
+      setGlobalConfigs({ ...newGlobalConfigs });
+      setGameSpecificConfigs({ ...newGameSpecificConfigs });
+      clearCanvas();
+      setGrid(
+        createGrid(
+          currentGame,
+          newGlobalConfigs[currentGame],
+          newGameSpecificConfigs[currentGame]
+        )
+      );
+      if (paused) togglePause();
+      closeDrawer();
+    },
+    [
+      currentGame,
+      newGameSpecificConfigs,
+      newGlobalConfigs,
+      paused,
+      setGameSpecificConfigs,
+      setGlobalConfigs,
+      setGrid,
+      togglePause,
+    ]
+  );
+
+  return useMemo(() => {
+    return {
+      globalConfigsTouched,
+      newGameSpecificConfigs,
+      newGlobalConfigs,
+      setGlobalConfigsTouched,
+      setNewGameSpecificConfigs,
+      setNewGlobalConfigs,
+      start,
+    };
+  }, [
+    globalConfigsTouched,
+    newGameSpecificConfigs,
+    newGlobalConfigs,
+    setGlobalConfigsTouched,
+    setNewGameSpecificConfigs,
+    setNewGlobalConfigs,
+    start,
+  ]);
+};
+
+export default useControlsContext;