修复抽奖概率 undefined

src/common/utils.js

@@ -55,3 +55,26 @@ export function compressShareImage(url) {
   }
   return url;
 }
+
+function getCommonDivisor(firstNum, secondNum) {
+  if (secondNum === 0) return firstNum;
+  var remainder = parseInt(firstNum % secondNum);
+  return getCommonDivisor(secondNum, remainder);
+}
+
+export function getProbability(quantity, coinQuantity) {
+  if (!quantity) return 0;
+    // 如果用户克币数是0
+  if (quantity === 0) {
+    return '0%';
+  }
+  var divisor = getCommonDivisor(quantity, coinQuantity);
+  var value = quantity / divisor;
+  var value2 = coinQuantity / divisor;
+    // 如果分子比分母大说明中奖概率是100%，那么返回中奖概率
+  if (value >= value2) {
+    return '100%';
+  } else {
+    return value + '/' + value2;
+  }
+}

src/components/custom/video.wpy

@@ -53,6 +53,7 @@
 <script>
   import wepy from '@wepy/core';
   import { getAwardsDetail, getPrizeList } from '../../common/api.js';
+  import {getProbability} from '../../common/utils';
   wepy.component({
     props: {
       videoList: {
@@ -230,12 +231,12 @@
       },
       updateAwardsInfo(current) {
         if (this.curQueue[current]) {
-          const { id, photoUrl, name, probability } = this.curQueue[current];
+          const { id, photoUrl, name, coinQuantity } = this.curQueue[current];
           this.$emit('getAwardsInfo', {
             id,
             photoUrl: encodeURIComponent(photoUrl),
             name,
-            chance: probability
+            chance: getProbability(this.userAccount, coinQuantity)
           });
         }
       },