Merge branch 'feature/IO-2733-pwa-timer' into release/2024-09-13

client/src/utils/countdownHook.js

@@ -0,0 +1,84 @@
+import React from "react";
+
+const useCountDown = (timeToCount = 60 * 1000, interval = 1000) => {
+  const [timeLeft, setTimeLeft] = React.useState(0);
+  const timer = React.useRef({});
+
+  const run = (ts) => {
+    if (!timer.current.started) {
+      timer.current.started = ts;
+      timer.current.lastInterval = ts;
+    }
+
+    const localInterval = Math.min(interval, timer.current.timeLeft || Infinity);
+    if (ts - timer.current.lastInterval >= localInterval) {
+      timer.current.lastInterval += localInterval;
+      setTimeLeft((timeLeft) => {
+        timer.current.timeLeft = timeLeft - localInterval;
+        return timer.current.timeLeft;
+      });
+    }
+
+    if (ts - timer.current.started < timer.current.timeToCount) {
+      timer.current.requestId = window.requestAnimationFrame(run);
+    } else {
+      timer.current = {};
+      setTimeLeft(0);
+    }
+  };
+
+  const start = React.useCallback(
+    (ttc) => {
+      window.cancelAnimationFrame(timer.current.requestId);
+
+      const newTimeToCount = ttc !== undefined ? ttc : timeToCount;
+      timer.current.started = null;
+      timer.current.lastInterval = null;
+      timer.current.timeToCount = newTimeToCount;
+      timer.current.requestId = window.requestAnimationFrame(run);
+
+      setTimeLeft(newTimeToCount);
+    },
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+    []
+  );
+
+  const pause = React.useCallback(() => {
+    window.cancelAnimationFrame(timer.current.requestId);
+    timer.current.started = null;
+    timer.current.lastInterval = null;
+    timer.current.timeToCount = timer.current.timeLeft;
+  }, []);
+
+  const resume = React.useCallback(
+    () => {
+      if (!timer.current.started && timer.current.timeLeft > 0) {
+        window.cancelAnimationFrame(timer.current.requestId);
+        timer.current.requestId = window.requestAnimationFrame(run);
+      }
+    },
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+    []
+  );
+
+  const reset = React.useCallback(() => {
+    if (timer.current.timeLeft) {
+      window.cancelAnimationFrame(timer.current.requestId);
+      timer.current = {};
+      setTimeLeft(0);
+    }
+  }, []);
+
+  const actions = React.useMemo(
+    () => ({ start, pause, resume, reset }), // eslint-disable-next-line react-hooks/exhaustive-deps
+    []
+  );
+
+  React.useEffect(() => {
+    return () => window.cancelAnimationFrame(timer.current.requestId);
+  }, []);
+
+  return [timeLeft, actions];
+};
+
+export default useCountDown;