set and clear game state using reducers - removed the need for global state management

src/reducers/gameReducer.ts

@@ -0,0 +1,38 @@
+interface IDiagrams {
+	ply: number;
+	fen: string;
+}
+
+export interface IGameState {
+	pgn: string;
+	headers: string;
+	diagrams: IDiagrams[];
+	diagramClock: boolean;
+}
+
+type GameAction =
+	| { type: "SET_GAME"; payload: { pgn: string; headers: "" } }
+	| { type: "CLEAR_GAME" };
+
+export const initialGameState = {
+	pgn: "",
+	headers: "",
+	diagrams: [],
+	diagramClock: false,
+};
+
+export const gameReducer = (state: IGameState, action: GameAction) => {
+	switch (action.type) {
+		case "SET_GAME":
+			return {
+				pgn: action.payload.pgn,
+				headers: "",
+				diagrams: [],
+				diagramClock: false,
+			};
+		case "CLEAR_GAME":
+			return initialGameState;
+		default:
+			return state;
+	}
+};