From 013319d7a4651d1708280f556e39c2f03839426a Mon Sep 17 00:00:00 2001
From: Maks Jopek <maksymilian.jopek@prym-soft.pl>
Date: Sun, 25 Apr 2021 12:07:36 +0200
Subject: Almost going in a circle

---
 frontend/ts/timer.ts | 51 +++++++++++++++++++++++++++------------------------
 1 file changed, 27 insertions(+), 24 deletions(-)

(limited to 'frontend/ts/timer.ts')

diff --git a/frontend/ts/timer.ts b/frontend/ts/timer.ts
index f8dab25..db70356 100644
--- a/frontend/ts/timer.ts
+++ b/frontend/ts/timer.ts
@@ -1,30 +1,33 @@
 export default class Timer {
-    divTimer!: HTMLElement;
+  divTimer!: HTMLElement;
 
-    interval!: any;
-    async start(playerIndex: number, finishTime: number): Promise<void> {
-        return new Promise(resolve => {
-            let divTimer = document.getElementById(`${playerIndex}-player-time`);
-            if (divTimer === null)
-                throw new Error("divTimer doesn't Exist");
-            else
-                this.divTimer = divTimer;
+  interval!: any;
+  async start(playerIndex: number, finishTime: number): Promise<void> {
+    return new Promise(resolve => {
+      if (this.interval !== undefined)
+        this.stop();
 
-            this.interval = setInterval(() => {
-                this.updateDisplay(finishTime - Date.now(), resolve);
-            }, 1000);
-        })
-    }
+      this.divTimer = document.getElementById(`${playerIndex}-player-time`) as HTMLElement;
 
-    updateDisplay(time: number, resolve: Function): void {
-        let secondsElapsed = Math.floor(time / 1000);
-        this.divTimer.innerHTML = secondsElapsed.toString();
-        if (secondsElapsed === 0) {
-            resolve();
-            clearInterval(this.interval);
-        }
-    }
-    stop(): void {
-        clearInterval(this.interval);
+      this.interval = setInterval(() => {
+        this.updateDisplay(finishTime - Date.now(), resolve);
+      }, 1000);
+    })
+  }
+
+  updateDisplay(time: number, resolve: Function): void {
+    let secondsElapsed = Math.floor(time / 1000);
+    if (secondsElapsed <= 0) {
+      resolve();
+      clearInterval(this.interval);
+      this.divTimer.innerHTML = '0';
+    } else {
+      this.divTimer.innerHTML = secondsElapsed.toString();
     }
+  }
+  stop(): void {
+    this.divTimer.innerHTML = '';
+    clearInterval(this.interval);
+    this.interval = undefined;
+  }
 }
\ No newline at end of file
-- 
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