`import sqlite3
import datetime
from Status import Status
import numpy as np

class Database:
    """
    A class to handle interactions with the SQLite database for object tracking.

    Attributes:
        conn (sqlite3.Connection): The database connection.
        cursor (sqlite3.Cursor): The database cursor.
    """
    def __init__(self, db_path='object_tracking.db'):
        """
        Initializes the Database class with a connection to the specified SQLite database.

        Args:
            db_path (str): The path to the SQLite database file.
        """
        self.conn = sqlite3.connect(db_path)
        self.cursor = self.conn.cursor()
        self.create_table()
        self.add_person_name_column()
        self.create_known_faces_table()

    def create_table(self):
        """
        Creates the 'tracked_objects' table if it does not already exist.
        """
        self.cursor.execute('''
        CREATE TABLE IF NOT EXISTS tracked_objects (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            class_name TEXT,
            x1 INTEGER,
            y1 INTEGER,
            width INTEGER,
            height INTEGER,
            last_seen DATETIME,
            status TEXT,
            detection_count INTEGER DEFAULT 0,
            person_name TEXT  -- Added new field for person's name
        )
    ''')
        self.conn.commit()
        
    def create_known_faces_table(self):
        """
        Creates the 'known_faces' table if it does not already exist.
        """
        self.cursor.execute('''
            CREATE TABLE IF NOT EXISTS known_faces (
                id INTEGER PRIMARY KEY AUTOINCREMENT,
                name TEXT NOT NULL,
                embedding BLOB NOT NULL
            )
        ''')
        self.conn.commit()

    def fetch_objects(self, class_name=None):
        """
        Fetches objects from the database, optionally filtered by class name.

        Args:
            class_name (str, optional): The class name to filter objects.

        Returns:
            list: A list of tuples representing the objects.
        """
        if class_name:
            self.cursor.execute('SELECT * FROM tracked_objects WHERE class_name=?', (class_name,))
        else:
            self.cursor.execute('SELECT * FROM tracked_objects')
        return self.cursor.fetchall()

    def fetch_all_objects(self):
        """
        Fetches all objects from the database.

        Returns:
            list: A list of tuples representing all objects.
        """
        self.cursor.execute('SELECT * FROM tracked_objects')
        return self.cursor.fetchall()

    def fetch_object_by_id(self, obj_id):
        """
        Fetches a single object by its ID.

        Args:
            obj_id (int): The ID of the object.

        Returns:
            tuple: The object data as a tuple.
        """
        self.cursor.execute('SELECT * FROM tracked_objects WHERE id=?', (obj_id,))
        return self.cursor.fetchone()

    def update_object(self, obj_id, x1, y1, width, height):
        """
        Updates the position and size of an existing object in the database, and increments detection_count.

        Args:
            obj_id (int): The ID of the object to update.
            x1 (int): The new x-coordinate of the object's top-left corner.
            y1 (int): The new y-coordinate of the object's top-left corner.
            width (int): The new width of the object.
            height (int): The new height of the object.

        Returns:
            int: The ID of the updated object.
        """
        last_seen = datetime.datetime.now().isoformat()
        status = Status.IN_FRAME.value  # Set status to 'In Frame'
        self.cursor.execute('''
            UPDATE tracked_objects 
            SET x1=?, y1=?, width=?, height=?, last_seen=?, status=?, detection_count=detection_count+1 
            WHERE id=?
        ''', (x1, y1, width, height, last_seen, status, obj_id))
        self.conn.commit()
        return obj_id

    def insert_object(self, class_name, x1, y1, width, height, person_name=None):
        """
        Inserts a new object into the database, and returns the new object's ID.

        Args:
            class_name (str): The class name of the object.
            x1 (int): The x-coordinate of the object's top-left corner.
            y1 (int): The y-coordinate of the object's top-left corner.
            width (int): The width of the object.
            height (int): The height of the object.
            person_name (str, optional): The name of the person associated with the object.

        Returns:
            int: The ID of the newly inserted object.
        """
        last_seen = datetime.datetime.now().isoformat()
        status = Status.IN_FRAME.value
        detection_count = 1
        self.cursor.execute('''
            INSERT INTO tracked_objects (class_name, x1, y1, width, height, last_seen, status, detection_count, person_name) 
            VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
        ''', (class_name, x1, y1, width, height, last_seen, status, detection_count, person_name))
        self.conn.commit()
        return self.cursor.lastrowid

    def update_status(self, obj_id, status):
        """
        Updates the status of an object in the database.

        Args:
            obj_id (int): The ID of the object to update.
            status (Status): The new status of the object.
        """
        self.cursor.execute('''
            UPDATE tracked_objects 
            SET status=? 
            WHERE id=?
        ''', (status.value, obj_id))
        self.conn.commit()

    def delete_object(self, obj_id):
        """
        Deletes an object from the database.

        Args:
            obj_id (int): The ID of the object to delete.
        """
        self.cursor.execute('''
            DELETE FROM tracked_objects WHERE id=?
        ''', (obj_id,))
        self.conn.commit()

    def add_person_name_column(self):
        """
        Adds the 'person_name' column to 'tracked_objects' table if it doesn't exist.
        """
        self.cursor.execute("PRAGMA table_info(tracked_objects)")
        columns = [column[1] for column in self.cursor.fetchall()]
        if 'person_name' not in columns:
            self.cursor.execute('ALTER TABLE tracked_objects ADD COLUMN person_name TEXT')
            self.conn.commit()
            
    def insert_known_face(self, name, embedding):
        """
        Inserts a new known face into the database.

        Args:
            name (str): The name of the person.
            embedding (np.ndarray): The face embedding.
        """
        embedding_blob = embedding.astype(np.float32).tobytes()
        self.cursor.execute('''
            INSERT INTO known_faces (name, embedding) VALUES (?, ?)
        ''', (name, embedding_blob))
        self.conn.commit()

    def fetch_known_faces(self):
        """
        Fetches all known faces from the database.

        Returns:
            list: A list of tuples representing known faces.
        """
        self.cursor.execute('SELECT * FROM known_faces')
        known_faces = []
        for row in self.cursor.fetchall():
            id = row[0]
            name = row[1]
            embedding_blob = row[2]
            embedding = np.frombuffer(embedding_blob, dtype=np.float32)
            known_faces.append((id, name, embedding))
        return known_faces
    
    def update_person_name(self, obj_id, person_name):
        self.cursor.execute('''
            UPDATE tracked_objects 
            SET person_name=? 
            WHERE id=?
        ''', (person_name, obj_id))
        self.conn.commit()`, `import cv2
import numpy as np

class FaceInterface:
    """
    A class for interfacing with the face recognition module.
    """
    def __init__(self, db) -> None:
        """
        Initializes the FaceInterface with the given database.

        Args:
            db (Database): The database instance.
        """
        self.db = db
    
    def add_known_face(self, image_path: str, name: str) -> bool:
        """
        Adds a known face to the database with the given name.

        Args:
            image_path ( str ): The path to the image containing the face.
            name ( str ): The name of the person associated with the face.
            
        Returns:
            bool: True if the face was successfully added, False otherwise.
        """
        img = cv2.imread(image_path)
        faces = self.db.face_recognizer.get(img)
        if faces:
            face_embedding = faces[0].embedding / np.linalg.norm(faces[0].embedding)
            self.db.insert_known_face(name, face_embedding)
            return True
        else:
            return False`, `# Import necessary libraries
from Database import Database
from ObjectDetection import ObjectDetection
from ObjectTracker import ObjectTracker
from FaceInterface import FaceInterface
import cv2
import argparse

def add_known_faces(file_path: str, face_interface: FaceInterface) -> None:
    """
    Add known faces from the CSV file to the face recognition module.

    Args:
        file_path (str): Path to the CSV file containing image paths and names.
        face_interface (FaceInterface): The face recognition interface.
        
    Raises:
        ValueError: If a known face could not be added.
    """
    if file_path:
        with open(file_path, 'r') as file:
            for line in file:
                image_path, name = line.strip().split(',')
                if not face_interface.add_known_face(image_path, name): 
                    raise ValueError(f"Failed to add {name} from {image_path}")

def main():
    """
    The main function to initialize object detection and tracking,
    and process the video stream from the webcam.
    """
    # Set up argument parser
    parser = argparse.ArgumentParser(description="CSV file of image_path, name. For face recognition.")
    parser.add_argument('--csv', type=str, help='Path to the CSV file for face recognition.')
    parser.add_argument('--model_path', type=str, default='yolo-Weights/yolov8n.pt', help='Path to the YOLO model weights.')
    args = parser.parse_args()
    
    # Initialize the database, detection model, and tracker
    db = Database()
    detection_model = ObjectDetection(model_path=args.model_path)
    tracker = ObjectTracker(db, detection_model)   
    face_interface = FaceInterface(db)
    
    # Add known faces from the CSV file
    add_known_faces(args.csv, face_interface)

    # Set up video capture from the default webcam
    cap = cv2.VideoCapture(0)
    cap.set(3, 640)  # Set width
    cap.set(4, 480)  # Set height

    while True:
        success, img = cap.read()
        if not success:
            break

        # Perform object tracking on the current frame
        img = tracker.track_objects(img)

        # Display the resulting frame
        cv2.imshow('Webcam', img)

        # Exit if 'q' is pressed
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break

    # Release resources
    cap.release()
    cv2.destroyAllWindows()

if __name__ == "__main__":
    main()`, `from ultralytics import YOLO

class ObjectDetection:
    """
    A class for object detection using a YOLO model.

    Attributes:
        model (YOLO): The YOLO model used for detection.
        classNames (list): List of class names that the model can detect.
        allowed_classes (set): Set of class indices that are allowed for tracking.
    """
    def __init__(self, model_path="yolo-Weights/yolov8n.pt"):
        """
        Initializes the ObjectDetection class with the specified YOLO model.

        Args:
            model_path (str): The path to the YOLO model weights.
        """
        try:
            self.model = YOLO(model_path)
        except Exception as e:
            raise Exception(f"Error loading YOLO model: {e}")
        
        self.classNames = ["person", "bicycle", "car", "motorbike", "aeroplane", "bus", "train", "truck", "boat",
                           "traffic light", "fire hydrant", "stop sign", "parking meter", "bench", "bird", "cat",
                           "dog", "horse", "sheep", "cow", "elephant", "bear", "zebra", "giraffe", "backpack", "umbrella",
                           "handbag", "tie", "suitcase", "frisbee", "skis", "snowboard", "sports ball", "kite", "baseball bat",
                           "baseball glove", "skateboard", "surfboard", "tennis racket", "bottle", "wine glass", "cup",
                           "fork", "knife", "spoon", "bowl", "banana", "apple", "sandwich", "orange", "broccoli",
                           "carrot", "hot dog", "pizza", "donut", "cake", "chair", "sofa", "pottedplant", "bed",
                           "diningtable", "toilet", "tvmonitor", "laptop", "mouse", "remote", "keyboard", "cell phone",
                           "microwave", "oven", "toaster", "sink", "refrigerator", "book", "clock", "vase", "scissors",
                           "teddy bear", "hair drier", "toothbrush"]
        # Only allow certain classes for tracking
        self.allowed_classes = {0, 24, 25, 26, 31, 36, 37, 39, 40, 41, 53, 63, 65, 67}

    def detect_objects(self, img):
        """
        Detects objects in the given image.

        Args:
            img (numpy.ndarray): The image in which to detect objects.

        Returns:
            list: A list of detections, each containing class name, bounding box coordinates, width, height, and confidence.
        """
        results = self.model(img, stream=True)
        detections = []
        for r in results:
            for box in r.boxes:
                # Get the confidence score
                confidence = box.conf[0].item()
                if confidence < 0.55:
                    continue  # Skip detections below confidence threshold

                # Get the class index
                cls = int(box.cls[0])
                if cls not in self.allowed_classes:
                    continue  # Skip classes that are not allowed

                # Get bounding box coordinates
                x1, y1, x2, y2 = map(int, box.xyxy[0])
                width, height = x2 - x1, y2 - y1
                class_name = self.classNames[cls]
                detections.append((class_name, x1, y1, width, height, confidence))
        return detections`, `import cv2
from deep_sort_realtime.deepsort_tracker import DeepSort
from datetime import datetime, timedelta
from Status import Status
from insightface.app import FaceAnalysis
import numpy as np


class ObjectTracker:
    """
    A class for tracking objects using Deep Sort and updating their status in the database.

    Attributes:
        db (Database): The database instance for storing object data.
        detection_model (ObjectDetection): The object detection model.
        tracker (DeepSort): The Deep Sort tracker instance.
        object_positions (dict): Dictionary to store the positions of each object.
    """
    def __init__(self, db, detection_model):
        """
        Initializes the ObjectTracker class with the given database and detection model.

        Args:
            db (Database): The database instance.
            detection_model (ObjectDetection): The object detection model.
        """
        self.db = db
        self.detection_model = detection_model
        self.tracker = DeepSort(max_age=10, n_init=3, nms_max_overlap=1.0,
                                max_cosine_distance=0.4, nn_budget=None)
        self.object_positions = {}  # To store positions of each object
        # Initialize ArcFace for face recognition
        self.face_recognizer = FaceAnalysis(allowed_modules=['detection', 'recognition'])
        self.face_recognizer.prepare(ctx_id=0, det_size=(640, 640))

    def is_near(self, existing_obj, new_obj, threshold=30):
        """
        Determines if a new object is near an existing object based on a threshold.

        Args:
            existing_obj (tuple): The existing object's coordinates and size (x, y, w, h).
            new_obj (tuple): The new object's coordinates and size (x, y, w, h).
            threshold (int, optional): The distance threshold to consider.

        Returns:
            bool: True if the objects are near each other, False otherwise.
        """
        ex, ey, ew, eh = existing_obj
        nx, ny, nw, nh = new_obj
        # Check if bounding boxes are close enough
        return not (nx > ex + ew + threshold or
                    nx + nw < ex - threshold or
                    ny > ey + eh + threshold or
                    ny + nh < ey - threshold)

    def is_within_frame(self, obj_id, frame_width, frame_height, border_threshold=20, size_threshold=60):
        """
        Checks if an object is within the frame or near the borders. If the object is near a border and its size is
        small (less than size_threshold), it is considered out of bounds.

        Args:
            obj_id (int): The ID of the object.
            frame_width (int): The width of the frame.
            frame_height (int): The height of the frame.
            border_threshold (int, optional): The distance from borders to consider as 'near the border'.
            size_threshold (int, optional): The size threshold to consider the object as out of bounds if near border.

        Returns:
            bool: True if the object is within the frame, False if it's out of bounds.
        """
        positions = self.object_positions.get(obj_id, [])
        if not positions:
            return False  # No position data available

        x, y, w, h = positions[-1]  # Get the most recent position

        # Check distances from borders
        distance_left = x
        distance_right = frame_width - (x + w)
        distance_top = y
        distance_bottom = frame_height - (y + h)

        # If object is near left border
        if distance_left <= border_threshold and w <= size_threshold:
            return False  # Object is out of bounds
        # If object is near right border
        if distance_right <= border_threshold and w <= size_threshold:
            return False
        # If object is near top border
        if distance_top <= border_threshold and h <= size_threshold:
            return False
        # If object is near bottom border
        if distance_bottom <= border_threshold and h <= size_threshold:
            return False

        # If none of the above conditions met, object is within frame
        return True

    def check_for_false_positives(self, frame_width, frame_height):
        """
        Checks the database for objects that haven't been seen for more than 500 ms.
        If an object hasn't been seen for more than 500 ms and is not within frame,
        updates its status to 'Left Frame'. If detection_count < 5, deletes it.

        Args:
            frame_width (int): The width of the frame.
            frame_height (int): The height of the frame.
        """
        all_objects = self.db.fetch_all_objects()
        now = datetime.now()
        detection_timeout = now - timedelta(milliseconds=500)

        for obj in all_objects:
            obj_id = obj[0]
            class_name = obj[1]
            x1 = obj[2]
            y1 = obj[3]
            width = obj[4]
            height = obj[5]
            last_seen_str = obj[6]
            status = obj[7]
            detection_count = obj[8]

            last_seen = datetime.fromisoformat(last_seen_str)

            # If the object hasn't been seen for more than 500 ms
            if last_seen < detection_timeout:
                if detection_count < 6:
                    # Delete the object from the database
                    self.db.delete_object(obj_id)
                    # Remove from position tracking
                    if obj_id in self.object_positions:
                        del self.object_positions[obj_id]
                else:
                    # Check if the object is within the frame
                    if not self.is_within_frame(obj_id, frame_width, frame_height):
                        # Update the object's status to 'Left Frame'
                        self.db.update_status(obj_id, Status.LEFT_FRAME)

    def track_objects(self, img):
        frame_height, frame_width = img.shape[:2]
        detections = self.detection_model.detect_objects(img)
        formatted_detections = []

        for class_name, x1, y1, width, height, confidence in detections:
            new_obj = (x1, y1, width, height)
            formatted_detections.append(([x1, y1, width, height], confidence, class_name))
            cv2.rectangle(img, (x1, y1), (x1 + width, y1 + height), (255, 0, 255), 3)
            cv2.putText(img, f'{class_name} {confidence:.2f}', (x1, y1 - 10),
                        cv2.FONT_HERSHEY_SIMPLEX, 0.9, (255, 0, 0), 2)

            person_name = None  # Initialize person_name

            if class_name == 'person':
                person_img = img[y1:y1+height, x1:x1+width]
                faces = self.face_recognizer.get(person_img)
                if faces:
                    face = faces[0]
                    face_embedding = face.embedding / np.linalg.norm(face.embedding)
                    known_faces = self.db.fetch_known_faces()
                    min_distance = float('inf')
                    matched_name = None

                    for known_face in known_faces:
                        known_name = known_face[1]
                        known_embedding = known_face[2] / np.linalg.norm(known_face[2])
                        distance = np.linalg.norm(face_embedding - known_embedding)
                        if distance < min_distance:
                            min_distance = distance
                            matched_name = known_name

                    threshold = 1.0  # Adjust based on your model and data
                    if min_distance < threshold:
                        person_name = matched_name
                        cv2.putText(img, f'Name: {person_name}', (x1, y1 - 30),
                                    cv2.FONT_HERSHEY_SIMPLEX, 0.9, (0, 255, 0), 2)
                    else:
                        person_name = 'Unknown'
                else:
                    person_name = 'No Face Detected'

            existing_objs = self.db.fetch_objects(class_name)
            preexisting_obj = False
            obj_id = None

            for existing_obj in existing_objs:
                db_x1 = existing_obj[2]
                db_y1 = existing_obj[3]
                db_width = existing_obj[4]
                db_height = existing_obj[5]
                last_seen = datetime.fromisoformat(existing_obj[6])
                status = Status(existing_obj[7])

                if self.is_near((db_x1, db_y1, db_width, db_height), new_obj):
                    preexisting_obj = True
                    obj_id = existing_obj[0]
                    self.db.update_object(obj_id, x1, y1, width, height)
                    if class_name == 'person':
                        self.db.update_person_name(obj_id, person_name)
                    self.object_positions[obj_id] = [(x1, y1, width, height)]
                    break

            if not preexisting_obj:
                obj_id = self.db.insert_object(class_name, x1, y1, width, height, person_name)
                self.object_positions[obj_id] = [(x1, y1, width, height)]
            else:
                self.object_positions[obj_id] = [(x1, y1, width, height)]
                self.db.update_status(obj_id, Status.IN_FRAME)

        tracks = self.tracker.update_tracks(formatted_detections, frame=img)
        self.check_for_false_positives(frame_width, frame_height)
        return img`,`from enum import Enum

class Status(str, Enum):
    """
    An enumeration to represent the status of tracked objects.
    """
    IN_FRAME = "In Frame"
    LEFT_FRAME = "Left Frame"`. Modify this code so that it is optimised. It currently runs at 5fps. It should be able to push 60. Change the runtime if needs be, maybe onnx if faster.