perf：health logging

src/health.ts

@@ -2,6 +2,8 @@ import {IJsonCourse} from "./types"
 import {JsonCourseList} from "./poll"
 import {findJsonCourse} from "./includes"
 import {appConfig} from "./config"
+import {scalarOptions} from "yaml"
+import Str = scalarOptions.Str
 
 let lastJsonCourseList: { bx: IJsonCourse[], xx: IJsonCourse[], rx: IJsonCourse[] }
 let firstRunHealth = true
@@ -9,6 +11,8 @@ let firstRunHealth = true
 export async function health() {
     let totalAcquireCount = 0
     let totalExitCount = 0
+    let acquireNames: string[] = []
+    let exitNames: string[] = []
     if (firstRunHealth) {
         console.log('[health]程序health监控启动完毕')
         firstRunHealth = false
@@ -25,13 +29,31 @@ export async function health() {
                 }
                 if (parseInt(currentCourse.syrs) > parseInt(lastCourse.syrs)) {
                     totalExitCount += parseInt(currentCourse.syrs) - parseInt(lastCourse.syrs)
+                    if (!exitNames.includes(currentCourse.kcmc)) {
+                        exitNames.push(currentCourse.kcmc)
+                    }
                 } else {
                     totalAcquireCount += parseInt(lastCourse.syrs) - parseInt(currentCourse.syrs)
+                    if (!acquireNames.includes(currentCourse.kcmc)) {
+                        acquireNames.push(currentCourse.kcmc)
+                    }
                 }
             }
         }
-        console.log('[health]实时总退课人次：' + totalExitCount + '，总选课人次：' + totalAcquireCount)
+        console.log('[health]实时总退课人次：' + totalExitCount + '（' + shuffle(exitNames).slice(0, 3).join(',') + '等），总选课人次：'
+            + totalAcquireCount + '（' + shuffle(acquireNames).slice(0, 3).join(',') + '等）')
     }
     lastJsonCourseList = JSON.parse(JSON.stringify(JsonCourseList))
     setTimeout(health, 60 * 1000)
 }
+
+function shuffle(array: any[]) {
+    let currentIndex = array.length, randomIndex
+    while (currentIndex != 0) {
+        randomIndex = Math.floor(Math.random() * currentIndex)
+        currentIndex--;
+        [array[currentIndex], array[randomIndex]] = [
+            array[randomIndex], array[currentIndex]]
+    }
+    return array
+}