update logic

main.py

@@ -8,7 +8,7 @@ import datetime
 from fastapi.staticfiles import StaticFiles
 from fastapi.responses import FileResponse
 from database import SessionLocal, engine
-from models import Base, Student, CheckInLog
+from models import Base, Student, CheckInLog, StudentEncoding
 from sqlalchemy.exc import IntegrityError
 from sqlalchemy import text
 
@@ -39,9 +39,6 @@ async def register_face(name: str = Form(...),email: str = Form(...),file: Uploa
         text("SELECT id FROM students WHERE email = :email"),
         {"email": email}
     ).fetchone()
-    if existing:
-        db.close()
-        raise HTTPException(status_code=400, detail="Email đã được đăng ký.")
 
     # Save image
     image_data = await file.read()
@@ -60,9 +57,31 @@ async def register_face(name: str = Form(...),email: str = Form(...),file: Uploa
     encoding_bytes = encodings[0].tobytes()
 
     try:
+        if existing:
+            # Email exists, just add new encoding
+            student_id = existing[0]
             db.execute(
-            text("INSERT INTO students (name, email, encoding) VALUES (:name, :email, :encoding)"),
+                text("INSERT INTO student_encodings (student_id, encoding) VALUES (:student_id, :encoding)"),
-            {"name": name, "email": email, "encoding": encoding_bytes}
+                {"student_id": student_id, "encoding": encoding_bytes}
+            )
+            db.commit()
+            return {"message": "Đã thêm encoding mới cho sinh viên."}
+        else:
+            # Email doesn't exist, create new student
+            db.execute(
+                text("INSERT INTO students (name, email) VALUES (:name, :email)"),
+                {"name": name, "email": email}
+            )
+            db.commit()
+            
+            # Get the last inserted id
+            result = db.execute(text("SELECT LAST_INSERT_ID()")).fetchone()
+            student_id = result[0]
+            
+            # Insert encoding
+            db.execute(
+                text("INSERT INTO student_encodings (student_id, encoding) VALUES (:student_id, :encoding)"),
+                {"student_id": student_id, "encoding": encoding_bytes}
             )
             db.commit()
             return {"message": "Đăng ký thành công."}
@@ -87,34 +106,66 @@ async def checkin(file: UploadFile = File(...), camera_id: str = Form("cam1"), d
     
     unknown_encoding = unknown_encodings[0]
 
-    students = db.query(Student).all()
+    # Get all encodings with student info
-    for student in students:
+    encodings = db.execute(
-        known_encoding = np.frombuffer(student.encoding)
+        text("""
+            SELECT s.id, s.name, se.encoding 
+            FROM student_encodings se
+            JOIN students s ON s.id = se.student_id
+        """)
+    ).fetchall()
+
+    for encoding in encodings:
+        known_encoding = np.frombuffer(encoding.encoding)
         result = face_recognition.compare_faces([known_encoding], unknown_encoding, tolerance=0.5)
         if result[0]:
             now = datetime.datetime.now()
-            recent_check = db.query(CheckInLog).filter(
+            recent_check = db.execute(
-                CheckInLog.student_id == student.id,
+                text("""
-                CheckInLog.time > now - datetime.timedelta(minutes=5)
+                    SELECT id FROM checkin_logs 
-            ).first()
+                    WHERE student_id = :student_id 
+                    AND time > :time_threshold
+                """),
+                {
+                    "student_id": encoding.id,
+                    "time_threshold": now - datetime.timedelta(minutes=5)
+                }
+            ).fetchone()
 
             if recent_check:
-                return {"message": f"{student.name} already checked in recently."}
+                return {"message": f"{encoding.name} already checked in recently."}
 
-            log = CheckInLog(student_id=student.id, time=now, camera_id=camera_id)
+            db.execute(
-            db.add(log)
+                text("""
+                    INSERT INTO checkin_logs (student_id, time, camera_id) 
+                    VALUES (:student_id, :time, :camera_id)
+                """),
+                {
+                    "student_id": encoding.id,
+                    "time": now,
+                    "camera_id": camera_id
+                }
+            )
             db.commit()
-            return {"message": f"Check-in successful for {student.name}"}
+            return {"message": f"Check-in successful for {encoding.name}"}
 
     return {"message": "No match found."}
 
 @app.get("/logs")
 def get_logs(db: Session = Depends(get_db)):
-    logs = db.query(CheckInLog).all()
+    logs = db.execute(
+        text("""
+            SELECT s.name, cl.time, cl.camera_id
+            FROM checkin_logs cl
+            JOIN students s ON cl.student_id = s.id
+            ORDER BY cl.time DESC
+        """)
+    ).fetchall()
+    
     result = []
     for log in logs:
         result.append({
-            "name": log.student.name,
+            "name": log.name,
             "time": log.time.strftime("%Y-%m-%d %H:%M:%S"),
             "camera_id": log.camera_id
         })

models.py

@@ -6,16 +6,24 @@ import datetime
 class Student(Base):
     __tablename__ = "students"
 
-    __tablename__ = "students"
-
     id = Column(Integer, primary_key=True, index=True)
     name = Column(String(100), nullable=False)
     email = Column(String(100), nullable=False, unique=True, index=True)
-    encoding = Column(LargeBinary, nullable=False)
 
     __table_args__ = (UniqueConstraint('email', name='uq_student_email'),)
 
     checkins = relationship("CheckInLog", back_populates="student")
+    encodings = relationship("StudentEncoding", back_populates="student")
+
+class StudentEncoding(Base):
+    __tablename__ = "student_encodings"
+
+    id = Column(Integer, primary_key=True, index=True)
+    student_id = Column(Integer, ForeignKey("students.id"))
+    encoding = Column(LargeBinary, nullable=False)
+    created_at = Column(DateTime, default=datetime.datetime.utcnow)
+
+    student = relationship("Student", back_populates="encodings")
 
 class CheckInLog(Base):
     __tablename__ = "checkin_logs"

static/index.html

@@ -23,7 +23,7 @@
     
     video {
       width: 100%;
-      max-width: 400px;
+      max-width: 1200px;
       border-radius: 8px;
       box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
       display: block;
@@ -86,6 +86,19 @@
       display: flex;
       justify-content: center;
       margin-top: 20px;
+      gap: 10px;
+    }
+
+    #auto-checkin {
+      background-color: #f39c12;
+    }
+    
+    #auto-checkin:hover {
+      background-color: #d35400;
+    }
+
+    #auto-checkin.active {
+      background-color: #e74c3c;
     }
 
     .logs-container {
@@ -136,14 +149,16 @@
     .main-layout {
       display: flex;
       gap: 20px;
+      max-width: 1600px;
+      margin: 0 auto;
     }
     
     .left-panel {
-      flex: 1;
+      flex: 6;
     }
     
     .right-panel {
-      flex: 1;
+      flex: 5;
     }
     
     @media (max-width: 768px) {
@@ -176,7 +191,6 @@
       position: fixed;
       top: 20px;
       right: 20px;
-      background-color: #f87171; /* red-400 */
       color: white;
       padding: 12px 20px;
       border-radius: 8px;
@@ -187,6 +201,14 @@
       animation: slideIn 0.3s ease-out;
     }
 
+    .alert-success {
+      background-color: #34d399; /* green-400 */
+    }
+
+    .alert-error {
+      background-color: #f87171; /* red-400 */
+    }
+
     @keyframes slideIn {
       from {
         opacity: 0;
@@ -204,7 +226,10 @@
     <div class="left-panel">
       <div class="container">
         <h2>📸 Face Camera</h2>
-        <video id="video" autoplay></video>
+        <div class="video-container" style="position: relative; display: flex; justify-content: center; align-items: center;">
+          <video id="video" autoplay style="width: 100%;"></video>
+          <img src="http://127.0.0.1:8000/static/face-removebg-preview.png" style="position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 60%; height: auto; pointer-events: none; opacity: 0.5;" alt="Hướng dẫn nhận diện khuôn mặt">
+        </div>
         <br>
 
         <div class="form-group">
@@ -217,6 +242,7 @@
         <div class="button-group">
           <button id="register">📥 Đăng ký khuôn mặt</button>
           <button id="checkin">✅ Điểm danh</button>
+          <button id="auto-checkin">🔄 Tự động điểm danh</button>
         </div>
         <div class="shortcut-hint">
           Nhấn phím Space để điểm danh nhanh
@@ -246,7 +272,7 @@
     </div>
   </div>
 
-  <canvas id="canvas" width="400" height="300" style="display:none;"></canvas>
+  <canvas id="canvas" width="1200" height="900" style="display:none;"></canvas>
 
   <script>
     const video = document.getElementById('video');
@@ -262,9 +288,9 @@
         showAlert("Không mở được camera: " + err);
       });
 
-      function showAlert(text) {
+    function showAlert(text, status = 'error') {
       const alertDiv = document.createElement('div');
-            alertDiv.className = 'custom-alert';
+      alertDiv.className = `custom-alert alert-${status}`;
       alertDiv.innerText = text;
       document.body.appendChild(alertDiv);
 
@@ -279,7 +305,7 @@
 
     // Hàm chụp ảnh từ video và gửi đến API
     function sendImage(url, extraData = {}) {
-      context.drawImage(video, 0, 0, 400, 300);
+      context.drawImage(video, 0, 0, 1200, 900);
       canvas.toBlob((blob) => {
         const formData = new FormData();
         formData.append("file", blob, "frame.jpg");
@@ -294,12 +320,13 @@
         })
         .then(res => res.json())
         .then(data => {
-            showAlert(data.message || JSON.stringify(data));
+          const status = data.message && data.message.includes("successful") ? 'success' : 'error';
+          showAlert(data.message || JSON.stringify(data), status);
           if (url === "/checkin" && data.message && data.message.includes("successful")) {
             loadLogs(); // Tải lại logs sau khi check-in thành công
           }
         })
-        .catch(err => showAlert("Lỗi gửi ảnh: " + err));
+        .catch(err => showAlert("Lỗi gửi ảnh: " + err, 'error'));
       }, "image/jpeg");
     }
 
@@ -307,19 +334,52 @@
     document.getElementById('register').addEventListener('click', () => {
         const name = document.getElementById('name').value.trim();
         const email = document.getElementById('email').value.trim();
-        if (!name || !email) return showAlert("Vui lòng nhập cả tên và email.");
+        if (!name || !email) {
+          showAlert("Vui lòng nhập cả tên và email.", 'error');
+          return;
+        }
         sendImage("/register", { name, email });
     });
 
+    let autoCheckinInterval = null;
+    const autoCheckinButton = document.getElementById('auto-checkin');
+
+    // Hàm bật/tắt tự động điểm danh
+    function toggleAutoCheckin() {
+      if (autoCheckinInterval) {
+        // Tắt tự động
+        clearInterval(autoCheckinInterval);
+        autoCheckinInterval = null;
+        autoCheckinButton.classList.remove('active');
+        autoCheckinButton.textContent = '🔄 Tự động điểm danh';
+      } else {
+        // Bật tự động
+        autoCheckinInterval = setInterval(() => {
+          sendImage("/checkin", { camera_id: "webcam" });
+        }, 1000); // Gửi mỗi giây
+        autoCheckinButton.classList.add('active');
+        autoCheckinButton.textContent = '⏹️ Dừng tự động';
+      }
+    }
+
+    // Sự kiện: Bật/tắt tự động điểm danh
+    autoCheckinButton.addEventListener('click', toggleAutoCheckin);
+
     // Sự kiện: Check-in
     document.getElementById('checkin').addEventListener('click', () => {
+      if (autoCheckinInterval) {
+        toggleAutoCheckin(); // Tắt tự động nếu đang bật
+      }
       sendImage("/checkin", { camera_id: "webcam" });
     });
     
     // Sự kiện: Nhấn phím Space để điểm danh
     document.addEventListener('keydown', (event) => {
       if (event.code === 'Space' || event.keyCode === 32) {
-        event.preventDefault(); // Ngăn chặn hành vi mặc định của phím Space
+        event.preventDefault();
+        if (autoCheckinInterval) {
+          toggleAutoCheckin(); // Tắt tự động nếu đang bật
+        }
         sendImage("/checkin", { camera_id: "webcam" });
       }
     });