抽卡：获取抽卡列表

shared/pubUtils/timeUtil.ts

@@ -1,4 +1,4 @@
-import { TIME_FORMAT, REFRESH_TIME } from '../consts';
+import { TIME_FORMAT, REFRESH_TIME, REFRESH_HOUR } from '../consts';
 
 const PER_SECOND = 1 * 1000;
 const PER_DAY = 24 * 60 * 60;
@@ -137,8 +137,22 @@ export function getNextHourPoint(hour: number) {
     return time;
 }
 
+/**
+ * 返回今天的某个时间点
+ * @param time 
+ * @param hour 
+ */
 export function getTodayZeroDate(hour = 0) {
-    var date = new Date();
+    return getZeroDate(new Date(), hour);
+}
+
+/**
+ * 根据给定的时间获得某个时间点
+ * @param time 
+ * @param hour 
+ */
+export function getZeroDate(time: Date, hour = 0) {
+    let date = new Date(time.getTime());
     date.setHours(hour);
     date.setMinutes(0);
     date.setSeconds(0);
@@ -226,4 +240,38 @@ export function getCurDay(needHandle = false, time?: Date) {
 export function setWeek(d?: number) {
     week = d;
     if(d == 7) week = 0;
+}
+
+/**
+ * 
+ * @param preDate 
+ * @param curDate 
+ */
+export function getDayGap(preDate: Date, curDate: Date) {
+    let cur = getZeroDate(curDate, REFRESH_HOUR);
+    let pre = getZeroDate(preDate, REFRESH_HOUR);
+
+    return Math.floor((cur.getTime() - pre.getTime()) / PER_DAY)
+}
+
+/**
+ * 获取某一天的 n * day 天之后
+ * @param preDate 
+ * @param curDate 
+ * @param day 
+ */
+export function getNextDayByGap(preDate: Date, curDate: Date, day: number) {
+    let gap = getDayGap(preDate, curDate);
+    let n = Math.ceil(gap / day);
+    let time = getAfterDateByDay(preDate, n);
+    return new Date(time);
+}
+
+/**
+ * 获取某个时间的 day 天之后
+ * @param day 
+ */
+export function getAfterDateByDay(preDate: Date, day: number) {     
+    let time = getZeroDate(preDate, REFRESH_HOUR).getTime() - day * PER_DAY;
+    return time;     
 }