fix: prevent duplicate consultations in backend, health calendar shows medication dots

backend/src/HealthManager.Application/Services/ConsultationService.cs

@@ -28,6 +28,12 @@ public class ConsultationService(AppDbContext db)
 
     public async Task<Consultation> StartAsync(Guid patientId, Guid doctorId, string subject)
     {
+        // Reuse existing active consultation between this patient and doctor
+        var existing = await db.Consultations
+            .FirstOrDefaultAsync(c => c.PatientId == patientId && c.DoctorId == doctorId && c.Status == "active");
+        if (existing != null)
+            return existing;
+
         var consultation = new Consultation
         {
             PatientId = patientId,

frontend-patient/src/pages/health/HealthCalendarPage.tsx

@@ -1,60 +1,87 @@
-import { useState, useMemo } from 'react';
+import { useState, useMemo, useEffect } from 'react';
 import { PageHeader } from '@/components/layout/PageHeader';
 import { Card } from '@/components/common/Card';
 import type { CalendarDay } from '@/types';
+import { api } from '@/services/api-client';
 import dayjs from 'dayjs';
 import styles from './HealthCalendarPage.module.css';
 
-const MARKER_COLORS: Record<string, string> = {
-  medication_taken: '#10B981',
-  medication_missed: '#EF4444',
-  follow_up: '#F59E0B',
-  measurement: '#2563EB',
-};
+interface MedRecord { medicationId: string; timeSlot: string; takenAt?: string | null; isTaken: boolean; }
+interface HealthRecord { id: string; type: string; recordedAt: string; }
+interface Medication { id: string; drugName: string; timeSlots: string[]; status: string; startDate: string; endDate?: string | null; }
 
 export function HealthCalendarPage() {
   const [currentDate, setCurrentDate] = useState(dayjs());
+  const [medRecords, setMedRecords] = useState<MedRecord[]>([]);
+  const [medications, setMedications] = useState<Medication[]>([]);
+
+  useEffect(() => {
+    // Fetch all active medications and their records
+    api.get<Medication[]>('/api/medications').then((res) => {
+      const active = res.data.filter((m) => m.status === 'active');
+      setMedications(active);
+      // Fetch records for each active medication
+      Promise.all(active.map((m) =>
+        api.get<MedRecord[]>(`/api/medications/${m.id}/records`)
+          .then((r) => r.data)
+          .catch(() => [] as MedRecord[])
+      )).then((all) => setMedRecords(all.flat()));
+    });
+  }, []);
 
   const calendarDays = useMemo(() => {
     const startOfMonth = currentDate.startOf('month');
     const endOfMonth = currentDate.endOf('month');
     const startDay = startOfMonth.day();
     const days: CalendarDay[] = [];
-
     const today = dayjs().format('YYYY-MM-DD');
 
+    // Build a map: date -> { taken, missed }
+    const dateMap: Record<string, { taken: number; missed: number }> = {};
+    medRecords.forEach((r) => {
+      const d = r.takenAt?.split('T')[0];
+      if (!d) return;
+      if (!dateMap[d]) dateMap[d] = { taken: 0, missed: 0 };
+      if (r.isTaken) dateMap[d].taken++;
+      else dateMap[d].missed++;
+    });
+
+    // Pad previous month
     for (let i = startDay - 1; i >= 0; i--) {
       const d = startOfMonth.subtract(i + 1, 'day');
-      days.push({
-        date: d.format('YYYY-MM-DD'),
-        year: d.year(),
-        month: d.month() + 1,
-        day: d.date(),
-        isCurrentMonth: false,
-        isToday: d.format('YYYY-MM-DD') === today,
-        markers: [],
-      });
+      days.push({ date: d.format('YYYY-MM-DD'), year: d.year(), month: d.month() + 1, day: d.date(), isCurrentMonth: false, isToday: d.format('YYYY-MM-DD') === today, markers: [] });
     }
 
     for (let d = startOfMonth; d.isBefore(endOfMonth) || d.isSame(endOfMonth, 'day'); d = d.add(1, 'day')) {
       const dateStr = d.format('YYYY-MM-DD');
       const markers: CalendarDay['markers'] = [];
+      const dm = dateMap[dateStr];
 
-      // Calendar markers would be populated from real API data
-
-      days.push({
-        date: dateStr,
-        year: d.year(),
-        month: d.month() + 1,
-        day: d.date(),
-        isCurrentMonth: true,
-        isToday: dateStr === today,
-        markers,
+      if (dm) {
+        if (dm.taken > 0) {
+          markers.push({ type: 'medication_taken', color: '#10B981', count: dm.taken });
+        }
+        if (dm.missed > 0) {
+          markers.push({ type: 'medication_missed', color: '#EF4444', count: dm.missed });
+        }
+      } else {
+        // Check if any medication should have been taken on this date
+        const dateInRange = medications.some((m) => {
+          if (m.status !== 'active') return false;
+          const sd = m.startDate;
+          const ed = m.endDate || '9999-12-31';
+          return dateStr >= sd && dateStr <= ed;
         });
+        if (dateInRange && medications.length > 0) {
+          markers.push({ type: 'medication_missed', color: '#FFA500', count: 0 });
+        }
+      }
+
+      days.push({ date: dateStr, year: d.year(), month: d.month() + 1, day: d.date(), isCurrentMonth: true, isToday: dateStr === today, markers });
     }
 
     return days;
-  }, [currentDate]);
+  }, [currentDate, medRecords, medications]);
 
   const weeks: CalendarDay[][] = [];
   for (let i = 0; i < calendarDays.length; i += 7) {
@@ -79,18 +106,11 @@ export function HealthCalendarPage() {
       {weeks.map((week, wi) => (
         <div key={wi} className={styles.week}>
           {week.map((day) => (
-            <div
-              key={day.date}
-              className={`${styles.day} ${!day.isCurrentMonth ? styles.outside : ''} ${day.isToday ? styles.today : ''}`}
-            >
+            <div key={day.date} className={`${styles.day} ${!day.isCurrentMonth ? styles.outside : ''} ${day.isToday ? styles.today : ''}`}>
               <span className={styles.dayNum}>{day.day}</span>
               <div className={styles.markers}>
                 {day.markers.slice(0, 3).map((m, i) => (
-                  <span
-                    key={i}
-                    className={styles.dot}
-                    style={{ background: m.color }}
-                  />
+                  <span key={i} className={styles.dot} style={{ background: m.color }} />
                 ))}
               </div>
             </div>
@@ -101,10 +121,9 @@ export function HealthCalendarPage() {
       <Card className={styles.legend}>
         <div className={styles.legendTitle}>图例</div>
         <div className={styles.legendItems}>
-          <span className={styles.legendItem}><span className={styles.dot} style={{ background: '#2563EB' }} /> 测量日</span>
           <span className={styles.legendItem}><span className={styles.dot} style={{ background: '#10B981' }} /> 已服药</span>
           <span className={styles.legendItem}><span className={styles.dot} style={{ background: '#EF4444' }} /> 漏服药</span>
-          <span className={styles.legendItem}><span className={styles.dot} style={{ background: '#F59E0B' }} /> 复查日</span>
+          <span className={styles.legendItem}><span className={styles.dot} style={{ background: '#FFA500' }} /> 未记录</span>
         </div>
       </Card>
     </div>