fix: #159 getSummary/getTrend optimization + #160 admin auth guard

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/modules/reading-event/admin-reading.controller.ts

@@ -1,7 +1,9 @@
 import { Controller, Get, Param, Post, Query, UseGuards } from '@nestjs/common';
+import { AdminJwtGuard } from '../../common/guards/admin-jwt.guard';
 import { PrismaService } from '../../infrastructure/database/prisma.service';
 
 @Controller('admin/learning')
+@UseGuards(AdminJwtGuard)
 export class AdminReadingController {
   constructor(private readonly prisma: PrismaService) {}
 

src/modules/reading/reading.controller.ts

@@ -110,43 +110,40 @@ export class ReadingController {
   @Get('learning/summary')
   async getSummary(@Req() req: any) {
     const userId = req.user.id;
-    const activities = await this.activityRepo.findAll(userId);
-
-    if (!activities.length) {
-      return { todaySeconds: 0, weekSeconds: 0, totalSeconds: 0, activeDays: 0, sessionsCount: 0, materialsReadCount: 0, markedReadCount: 0, dailyAverageSeconds: 0 };
-    }
-
     const now = new Date();
     const todayStr = now.toISOString().split('T')[0];
     const weekAgo = new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000);
 
-    let todaySeconds = 0, weekSeconds = 0, totalSeconds = 0, activeDays = 0;
-    let sessionsCount = 0, materialsReadCount = 0, markedReadCount = 0;
+    // Query recent 90 days for week/today + aggregate totals
+    const from = new Date(now.getTime() - 90 * 24 * 60 * 60 * 1000);
+    const activities = await this.activityRepo.findByDateRange(userId, from, now);
+    const allActivities = await this.activityRepo.findAll(userId);
 
-    for (const a of activities) {
-      const dateStr = a.activityDate instanceof Date ? a.activityDate.toISOString().split('T')[0] : String(a.activityDate).split('T')[0];
+    if (!allActivities.length) {
+      return { todaySeconds: 0, weekSeconds: 0, totalSeconds: 0, activeDays: 0, sessionsCount: 0, materialsReadCount: 0, markedReadCount: 0, dailyAverageSeconds: 0 };
+    }
 
+    let todaySeconds = 0, weekSeconds = 0, recentSeconds = 0;
+    let totalSeconds = 0, activeDays = 0, sessionsCount = 0, materialsReadCount = 0, markedReadCount = 0;
+
+    for (const a of allActivities) {
       totalSeconds += a.readingSeconds;
       sessionsCount += a.sessionsCount;
       materialsReadCount += a.materialsReadCount;
       markedReadCount += a.markedReadCount;
-
       if (a.readingSeconds > 0) activeDays++;
+    }
 
+    for (const a of activities) {
+      const dateStr = a.activityDate instanceof Date ? a.activityDate.toISOString().split('T')[0] : String(a.activityDate).split('T')[0];
       if (dateStr === todayStr) todaySeconds += a.readingSeconds;
-
       const actDate = a.activityDate instanceof Date ? a.activityDate : new Date(a.activityDate);
       if (actDate >= weekAgo) weekSeconds += a.readingSeconds;
     }
 
     return {
-      todaySeconds,
-      weekSeconds,
-      totalSeconds,
-      activeDays,
-      sessionsCount,
-      materialsReadCount,
-      markedReadCount,
+      todaySeconds, weekSeconds, totalSeconds, activeDays,
+      sessionsCount, materialsReadCount, markedReadCount,
       dailyAverageSeconds: activeDays > 0 ? Math.round(totalSeconds / activeDays) : 0,
     };
   }
@@ -155,8 +152,10 @@ export class ReadingController {
   async getTrend(@Req() req: any, @Query('days') daysStr?: string) {
     const userId = req.user.id;
     const days = Math.min(Number(daysStr ?? 7) || 7, 90);
+    const now = new Date();
+    const from = new Date(now.getTime() - days * 24 * 60 * 60 * 1000);
 
-    const activities = await this.activityRepo.findAll(userId);
+    const activities = await this.activityRepo.findByDateRange(userId, from, now);
     const dataMap = new Map<string, number>();
     for (const a of activities) {
       const ds = a.activityDate instanceof Date ? a.activityDate.toISOString().split('T')[0] : String(a.activityDate).split('T')[0];
@@ -164,7 +163,6 @@ export class ReadingController {
     }
 
     const series: Array<{ date: string; value: number }> = [];
-    const now = new Date();
     for (let i = days - 1; i >= 0; i--) {
       const d = new Date(now.getTime() - i * 24 * 60 * 60 * 1000);
       const ds = d.toISOString().split('T')[0];