Implement healthcare management system backend with FastAPI and SQLite

README.md

@@ -1,3 +1,188 @@
-# FastAPI Application
+# Healthcare Management System Backend
 
-This is a FastAPI application bootstrapped by BackendIM, the AI-powered backend generation platform.
+A comprehensive backend API for a healthcare management system built with FastAPI and SQLite.
+
+## Features
+
+- User Authentication and Authorization
+- Patient Management
+- Doctor Management
+- Appointment Scheduling
+- Medical Records Management
+- Doctor Availability Scheduling
+
+## Tech Stack
+
+- **Framework**: FastAPI
+- **Database**: SQLite with SQLAlchemy ORM
+- **Migrations**: Alembic
+- **Authentication**: JWT Tokens
+- **Password Hashing**: BCrypt
+- **Linting**: Ruff
+
+## Project Structure
+
+```
+├── alembic.ini                    # Alembic configuration
+├── main.py                        # Application entry point
+├── app/                           # Main application package
+│   ├── api/                       # API endpoints
+│   │   ├── api_v1/                # API version 1
+│   │   │   ├── endpoints/         # API endpoint modules
+│   │   │   │   ├── login.py       # Authentication endpoints
+│   │   │   │   ├── users.py       # User management endpoints
+│   │   │   │   ├── patients.py    # Patient management endpoints
+│   │   │   │   ├── doctors.py     # Doctor management endpoints
+│   │   │   │   └── appointments.py # Appointment management endpoints
+│   │   │   └── api.py             # API router
+│   │   └── deps.py                # Dependency injection
+│   ├── core/                      # Core application modules
+│   │   ├── config.py              # Application configuration
+│   │   └── security.py            # Security utilities
+│   ├── crud/                      # CRUD operations
+│   │   ├── base.py                # Base CRUD class
+│   │   ├── crud_user.py           # User CRUD operations
+│   │   ├── crud_patient.py        # Patient CRUD operations
+│   │   ├── crud_doctor.py         # Doctor CRUD operations
+│   │   └── crud_appointment.py    # Appointment CRUD operations
+│   ├── db/                        # Database setup
+│   │   ├── base.py                # Base class for models
+│   │   ├── base_class.py          # Imports all models for Alembic
+│   │   └── session.py             # Database session setup
+│   ├── models/                    # SQLAlchemy models
+│   │   ├── user.py                # User model
+│   │   ├── patient.py             # Patient model
+│   │   ├── doctor.py              # Doctor model
+│   │   ├── appointment.py         # Appointment model
+│   │   ├── medical_record.py      # Medical record model
+│   │   └── doctor_schedule.py     # Doctor schedule model
+│   └── schemas/                   # Pydantic models (schemas)
+│       ├── user.py                # User schemas
+│       ├── patient.py             # Patient schemas
+│       ├── doctor.py              # Doctor schemas
+│       ├── appointment.py         # Appointment schemas
+│       ├── medical_record.py      # Medical record schemas
+│       ├── doctor_schedule.py     # Doctor schedule schemas
+│       └── token.py               # Token schemas
+└── migrations/                    # Alembic migrations
+    ├── versions/                  # Migration versions
+    │   └── 001_initial_migration.py # Initial migration
+    ├── env.py                     # Alembic environment
+    ├── README                     # Alembic README
+    └── script.py.mako             # Alembic script template
+```
+
+## Environment Variables
+
+The application uses the following environment variables:
+
+| Name | Description | Default Value |
+|------|-------------|---------------|
+| SECRET_KEY | Secret key for JWT token generation and verification | development_secret_key |
+| ACCESS_TOKEN_EXPIRE_MINUTES | JWT token expiration time in minutes | 60 |
+| JWT_SECRET | Secret key for JWT token generation | Same as SECRET_KEY |
+
+## Getting Started
+
+### Prerequisites
+
+- Python 3.8+
+- pip (Python package installer)
+
+### Installation
+
+1. Clone the repository:
+```bash
+git clone https://github.com/yourusername/healthcare-management-system-backend.git
+cd healthcare-management-system-backend
+```
+
+2. Install dependencies:
+```bash
+pip install -r requirements.txt
+```
+
+3. Initialize the database:
+```bash
+# Create the database directory
+mkdir -p /app/storage/db
+
+# Run the migrations
+alembic upgrade head
+```
+
+4. Start the application:
+```bash
+uvicorn main:app --host 0.0.0.0 --port 8000 --reload
+```
+
+## API Documentation
+
+Once the application is running, you can access the interactive API documentation at:
+
+- Swagger UI: http://localhost:8000/docs
+- ReDoc: http://localhost:8000/redoc
+
+## API Endpoints
+
+### Authentication
+
+- **POST /api/v1/login/access-token**: Get access token (OAuth2 compatible)
+
+### Users
+
+- **GET /api/v1/users/**: Get all users (admin only)
+- **POST /api/v1/users/**: Create a new user (admin only)
+- **GET /api/v1/users/me**: Get current user information
+- **PUT /api/v1/users/me**: Update current user information
+- **GET /api/v1/users/{user_id}**: Get user by ID
+- **PUT /api/v1/users/{user_id}**: Update user by ID (admin only)
+
+### Patients
+
+- **GET /api/v1/patients/**: Get all patients
+- **POST /api/v1/patients/**: Create a new patient
+- **GET /api/v1/patients/{patient_id}**: Get patient by ID
+- **PUT /api/v1/patients/{patient_id}**: Update patient by ID
+- **DELETE /api/v1/patients/{patient_id}**: Delete patient by ID (admin only)
+
+### Doctors
+
+- **GET /api/v1/doctors/**: Get all doctors
+- **POST /api/v1/doctors/**: Create a new doctor
+- **GET /api/v1/doctors/{doctor_id}**: Get doctor by ID
+- **PUT /api/v1/doctors/{doctor_id}**: Update doctor by ID
+- **DELETE /api/v1/doctors/{doctor_id}**: Delete doctor by ID (admin only)
+
+### Appointments
+
+- **GET /api/v1/appointments/**: Get all appointments
+- **POST /api/v1/appointments/**: Create a new appointment
+- **GET /api/v1/appointments/{appointment_id}**: Get appointment by ID
+- **PUT /api/v1/appointments/{appointment_id}**: Update appointment by ID
+- **DELETE /api/v1/appointments/{appointment_id}**: Delete appointment by ID
+- **POST /api/v1/appointments/{appointment_id}/status**: Update appointment status
+
+## Development
+
+### Running Tests
+
+```bash
+pytest
+```
+
+### Linting
+
+```bash
+ruff check .
+```
+
+### Autofixing Linting Issues
+
+```bash
+ruff check --fix .
+```
+
+## License
+
+This project is licensed under the MIT License - see the LICENSE file for details.

alembic.ini

@@ -0,0 +1,105 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = migrations
+
+# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
+# Uncomment the line below if you want the files to be prepended with date and time
+# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
+# for all available tokens
+# file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.
+prepend_sys_path = .
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the python-dateutil library that can be
+# installed by adding `alembic[tz]` to the pip requirements
+# string value is passed to dateutil.tz.gettz()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to migrations/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "version_path_separator" below.
+# version_locations = %(here)s/bar:%(here)s/bat:migrations/versions
+
+# version path separator; As mentioned above, this is the character used to split
+# version_locations. The default within new alembic.ini files is "os", which uses os.pathsep.
+# If this key is omitted entirely, it falls back to the legacy behavior of splitting on spaces and/or commas.
+# Valid values for version_path_separator are:
+#
+# version_path_separator = :
+# version_path_separator = ;
+# version_path_separator = space
+version_path_separator = os  # Use os.pathsep. Default configuration used for new projects.
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+# SQLite URL example
+sqlalchemy.url = sqlite:////app/storage/db/db.sqlite
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

app/api/api_v1/api.py

@@ -0,0 +1,10 @@
+from fastapi import APIRouter
+
+from app.api.api_v1.endpoints import users, patients, doctors, appointments, login
+
+api_router = APIRouter()
+api_router.include_router(login.router, tags=["login"])
+api_router.include_router(users.router, prefix="/users", tags=["users"])
+api_router.include_router(patients.router, prefix="/patients", tags=["patients"])
+api_router.include_router(doctors.router, prefix="/doctors", tags=["doctors"])
+api_router.include_router(appointments.router, prefix="/appointments", tags=["appointments"])

app/api/api_v1/endpoints/appointments.py

@@ -0,0 +1,291 @@
+from datetime import timedelta
+from typing import Any, List, Optional
+
+from fastapi import APIRouter, Depends, HTTPException, Query
+from sqlalchemy.orm import Session
+
+from app import crud, models, schemas
+from app.api import deps
+from app.models.appointment import AppointmentStatus
+
+router = APIRouter()
+
+
+@router.get("/", response_model=List[schemas.appointment.Appointment])
+def read_appointments(
+    db: Session = Depends(deps.get_db),
+    doctor_id: Optional[int] = Query(None, description="Filter appointments by doctor"),
+    patient_id: Optional[int] = Query(None, description="Filter appointments by patient"),
+    skip: int = 0,
+    limit: int = 100,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Retrieve appointments.
+    """
+    # Determine what appointments the user can see
+    if crud.crud_user.user.is_superuser(current_user):
+        # Superusers can see all appointments with optional filtering
+        if doctor_id:
+            appointments = crud.crud_appointment.appointment.get_by_doctor(
+                db, doctor_id=doctor_id, skip=skip, limit=limit
+            )
+        elif patient_id:
+            appointments = crud.crud_appointment.appointment.get_by_patient(
+                db, patient_id=patient_id, skip=skip, limit=limit
+            )
+        else:
+            appointments = crud.crud_appointment.appointment.get_multi(
+                db, skip=skip, limit=limit
+            )
+    else:
+        # Regular users can only see their own appointments
+        if current_user.doctor:
+            # Doctors can see all their appointments
+            appointments = crud.crud_appointment.appointment.get_by_doctor(
+                db, doctor_id=current_user.doctor.id, skip=skip, limit=limit
+            )
+        elif current_user.patient:
+            # Patients can see all their appointments
+            appointments = crud.crud_appointment.appointment.get_by_patient(
+                db, patient_id=current_user.patient.id, skip=skip, limit=limit
+            )
+        else:
+            # Users without doctor or patient profiles can't see any appointments
+            appointments = []
+    
+    return appointments
+
+
+@router.post("/", response_model=schemas.appointment.Appointment)
+def create_appointment(
+    *,
+    db: Session = Depends(deps.get_db),
+    appointment_in: schemas.appointment.AppointmentCreate,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Create new appointment.
+    """
+    # Check if doctor exists
+    doctor = crud.crud_doctor.doctor.get(db, id=appointment_in.doctor_id)
+    if not doctor:
+        raise HTTPException(
+            status_code=404,
+            detail="Doctor not found",
+        )
+    
+    # Check if patient exists
+    patient = crud.crud_patient.patient.get(db, id=appointment_in.patient_id)
+    if not patient:
+        raise HTTPException(
+            status_code=404,
+            detail="Patient not found",
+        )
+    
+    # Check permissions
+    if not crud.crud_user.user.is_superuser(current_user):
+        # Only the patient or the doctor involved can create an appointment
+        if current_user.patient:
+            if current_user.patient.id != appointment_in.patient_id:
+                raise HTTPException(
+                    status_code=403,
+                    detail="Not enough permissions to create an appointment for another patient",
+                )
+        elif current_user.doctor:
+            if current_user.doctor.id != appointment_in.doctor_id:
+                raise HTTPException(
+                    status_code=403,
+                    detail="Not enough permissions to create an appointment for another doctor",
+                )
+        else:
+            raise HTTPException(
+                status_code=403,
+                detail="Not enough permissions to create an appointment",
+            )
+    
+    # Check for scheduling conflicts
+    appointment_end = appointment_in.appointment_datetime + timedelta(minutes=appointment_in.duration_minutes)
+    doctor_appointments = crud.crud_appointment.appointment.get_by_doctor_and_date_range(
+        db, 
+        doctor_id=appointment_in.doctor_id,
+        start_date=appointment_in.appointment_datetime - timedelta(hours=1),  # Buffer before
+        end_date=appointment_end + timedelta(hours=1),  # Buffer after
+    )
+    
+    for existing_appointment in doctor_appointments:
+        # Skip cancelled appointments
+        if existing_appointment.status == AppointmentStatus.CANCELLED:
+            continue
+            
+        existing_end = existing_appointment.appointment_datetime + timedelta(minutes=existing_appointment.duration_minutes)
+        
+        # Check for overlap
+        if (appointment_in.appointment_datetime < existing_end and 
+            existing_appointment.appointment_datetime < appointment_end):
+            raise HTTPException(
+                status_code=400,
+                detail=f"Scheduling conflict with an existing appointment at {existing_appointment.appointment_datetime}",
+            )
+    
+    appointment = crud.crud_appointment.appointment.create(db, obj_in=appointment_in)
+    return appointment
+
+
+@router.get("/{appointment_id}", response_model=schemas.appointment.Appointment)
+def read_appointment(
+    *,
+    db: Session = Depends(deps.get_db),
+    appointment_id: int,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Get appointment by ID.
+    """
+    appointment = crud.crud_appointment.appointment.get(db, id=appointment_id)
+    if not appointment:
+        raise HTTPException(status_code=404, detail="Appointment not found")
+    
+    # Check permissions
+    if not crud.crud_user.user.is_superuser(current_user):
+        # Regular users can only see their own appointments
+        if current_user.patient:
+            if current_user.patient.id != appointment.patient_id:
+                raise HTTPException(status_code=403, detail="Not enough permissions")
+        elif current_user.doctor:
+            if current_user.doctor.id != appointment.doctor_id:
+                raise HTTPException(status_code=403, detail="Not enough permissions")
+        else:
+            raise HTTPException(status_code=403, detail="Not enough permissions")
+    
+    return appointment
+
+
+@router.put("/{appointment_id}", response_model=schemas.appointment.Appointment)
+def update_appointment(
+    *,
+    db: Session = Depends(deps.get_db),
+    appointment_id: int,
+    appointment_in: schemas.appointment.AppointmentUpdate,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Update an appointment.
+    """
+    appointment = crud.crud_appointment.appointment.get(db, id=appointment_id)
+    if not appointment:
+        raise HTTPException(status_code=404, detail="Appointment not found")
+    
+    # Check permissions
+    if not crud.crud_user.user.is_superuser(current_user):
+        # Regular users can only update their own appointments
+        if current_user.patient:
+            if current_user.patient.id != appointment.patient_id:
+                raise HTTPException(status_code=403, detail="Not enough permissions")
+        elif current_user.doctor:
+            if current_user.doctor.id != appointment.doctor_id:
+                raise HTTPException(status_code=403, detail="Not enough permissions")
+        else:
+            raise HTTPException(status_code=403, detail="Not enough permissions")
+    
+    # If appointment_datetime is updated, check for scheduling conflicts
+    if appointment_in.appointment_datetime and appointment_in.appointment_datetime != appointment.appointment_datetime:
+        appointment_end = appointment_in.appointment_datetime + timedelta(
+            minutes=appointment_in.duration_minutes if appointment_in.duration_minutes else appointment.duration_minutes
+        )
+        
+        doctor_appointments = crud.crud_appointment.appointment.get_by_doctor_and_date_range(
+            db, 
+            doctor_id=appointment.doctor_id,
+            start_date=appointment_in.appointment_datetime - timedelta(hours=1),
+            end_date=appointment_end + timedelta(hours=1),
+        )
+        
+        for existing_appointment in doctor_appointments:
+            # Skip the current appointment and cancelled appointments
+            if existing_appointment.id == appointment_id or existing_appointment.status == AppointmentStatus.CANCELLED:
+                continue
+                
+            existing_end = existing_appointment.appointment_datetime + timedelta(minutes=existing_appointment.duration_minutes)
+            
+            # Check for overlap
+            if (appointment_in.appointment_datetime < existing_end and 
+                existing_appointment.appointment_datetime < appointment_end):
+                raise HTTPException(
+                    status_code=400,
+                    detail=f"Scheduling conflict with an existing appointment at {existing_appointment.appointment_datetime}",
+                )
+    
+    appointment = crud.crud_appointment.appointment.update(
+        db, db_obj=appointment, obj_in=appointment_in
+    )
+    return appointment
+
+
+@router.delete("/{appointment_id}", response_model=schemas.appointment.Appointment)
+def delete_appointment(
+    *,
+    db: Session = Depends(deps.get_db),
+    appointment_id: int,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Delete an appointment.
+    """
+    appointment = crud.crud_appointment.appointment.get(db, id=appointment_id)
+    if not appointment:
+        raise HTTPException(status_code=404, detail="Appointment not found")
+    
+    # Check permissions
+    if not crud.crud_user.user.is_superuser(current_user):
+        # Regular users can only delete their own appointments
+        if current_user.patient:
+            if current_user.patient.id != appointment.patient_id:
+                raise HTTPException(status_code=403, detail="Not enough permissions")
+        elif current_user.doctor:
+            if current_user.doctor.id != appointment.doctor_id:
+                raise HTTPException(status_code=403, detail="Not enough permissions")
+        else:
+            raise HTTPException(status_code=403, detail="Not enough permissions")
+    
+    appointment = crud.crud_appointment.appointment.remove(db, id=appointment_id)
+    return appointment
+
+
+@router.post("/{appointment_id}/status", response_model=schemas.appointment.Appointment)
+def update_appointment_status(
+    *,
+    db: Session = Depends(deps.get_db),
+    appointment_id: int,
+    status: AppointmentStatus,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Update appointment status.
+    """
+    appointment = crud.crud_appointment.appointment.get(db, id=appointment_id)
+    if not appointment:
+        raise HTTPException(status_code=404, detail="Appointment not found")
+    
+    # Check permissions
+    if not crud.crud_user.user.is_superuser(current_user):
+        # Regular users can only update their own appointments
+        if current_user.patient:
+            if current_user.patient.id != appointment.patient_id:
+                raise HTTPException(status_code=403, detail="Not enough permissions")
+            # Patients can only cancel their appointments
+            if status not in [AppointmentStatus.CANCELLED]:
+                raise HTTPException(
+                    status_code=403, 
+                    detail="Patients can only cancel appointments"
+                )
+        elif current_user.doctor:
+            if current_user.doctor.id != appointment.doctor_id:
+                raise HTTPException(status_code=403, detail="Not enough permissions")
+        else:
+            raise HTTPException(status_code=403, detail="Not enough permissions")
+    
+    appointment = crud.crud_appointment.appointment.update_status(
+        db, db_obj=appointment, status=status
+    )
+    return appointment

app/api/api_v1/endpoints/doctors.py

@@ -0,0 +1,126 @@
+from typing import Any, List, Optional
+
+from fastapi import APIRouter, Depends, HTTPException, Query
+from sqlalchemy.orm import Session
+
+from app import crud, models, schemas
+from app.api import deps
+
+router = APIRouter()
+
+
+@router.get("/", response_model=List[schemas.doctor.Doctor])
+def read_doctors(
+    db: Session = Depends(deps.get_db),
+    skip: int = 0,
+    limit: int = 100,
+    specialty: Optional[str] = Query(None, description="Filter doctors by specialty"),
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Retrieve doctors.
+    """
+    if specialty:
+        doctors = crud.crud_doctor.doctor.get_multi_by_specialty(
+            db, specialty=specialty, skip=skip, limit=limit
+        )
+    else:
+        doctors = crud.crud_doctor.doctor.get_multi(db, skip=skip, limit=limit)
+    return doctors
+
+
+@router.post("/", response_model=schemas.doctor.Doctor)
+def create_doctor(
+    *,
+    db: Session = Depends(deps.get_db),
+    doctor_in: schemas.doctor.DoctorCreate,
+    current_user: models.User = Depends(deps.get_current_active_superuser),
+) -> Any:
+    """
+    Create new doctor.
+    """
+    # Check if user exists
+    user = crud.crud_user.user.get(db, id=doctor_in.user_id)
+    if not user:
+        raise HTTPException(
+            status_code=404,
+            detail="The user with this id does not exist in the system",
+        )
+    
+    # Check if doctor already exists for this user
+    doctor = crud.crud_doctor.doctor.get_by_user_id(db, user_id=doctor_in.user_id)
+    if doctor:
+        raise HTTPException(
+            status_code=400,
+            detail="The doctor with this user_id already exists in the system",
+        )
+    
+    # Check if license number is already registered
+    doctor = crud.crud_doctor.doctor.get_by_license_number(db, license_number=doctor_in.license_number)
+    if doctor:
+        raise HTTPException(
+            status_code=400,
+            detail="The doctor with this license_number already exists in the system",
+        )
+    
+    doctor = crud.crud_doctor.doctor.create(db, obj_in=doctor_in)
+    return doctor
+
+
+@router.get("/{doctor_id}", response_model=schemas.doctor.Doctor)
+def read_doctor(
+    *,
+    db: Session = Depends(deps.get_db),
+    doctor_id: int,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Get doctor by ID.
+    """
+    doctor = crud.crud_doctor.doctor.get(db, id=doctor_id)
+    if not doctor:
+        raise HTTPException(status_code=404, detail="Doctor not found")
+    return doctor
+
+
+@router.put("/{doctor_id}", response_model=schemas.doctor.Doctor)
+def update_doctor(
+    *,
+    db: Session = Depends(deps.get_db),
+    doctor_id: int,
+    doctor_in: schemas.doctor.DoctorUpdate,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Update a doctor.
+    """
+    doctor = crud.crud_doctor.doctor.get(db, id=doctor_id)
+    if not doctor:
+        raise HTTPException(status_code=404, detail="Doctor not found")
+    
+    # Check permissions
+    if not crud.crud_user.user.is_superuser(current_user):
+        # Regular users can only update their own doctor data
+        if not current_user.doctor or current_user.doctor.id != doctor_id:
+            raise HTTPException(status_code=403, detail="Not enough permissions")
+    
+    doctor = crud.crud_doctor.doctor.update(db, db_obj=doctor, obj_in=doctor_in)
+    return doctor
+
+
+@router.delete("/{doctor_id}", response_model=schemas.doctor.Doctor)
+def delete_doctor(
+    *,
+    db: Session = Depends(deps.get_db),
+    doctor_id: int,
+    current_user: models.User = Depends(deps.get_current_active_superuser),
+) -> Any:
+    """
+    Delete a doctor.
+    """
+    doctor = crud.crud_doctor.doctor.get(db, id=doctor_id)
+    if not doctor:
+        raise HTTPException(status_code=404, detail="Doctor not found")
+    
+    doctor = crud.crud_doctor.doctor.remove(db, id=doctor_id)
+    return doctor

app/api/api_v1/endpoints/login.py

@@ -0,0 +1,41 @@
+from datetime import timedelta
+from typing import Any
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordRequestForm
+from sqlalchemy.orm import Session
+
+from app import crud, schemas
+from app.api import deps
+from app.core import security
+from app.core.config import settings
+
+router = APIRouter()
+
+
+@router.post("/login/access-token", response_model=schemas.token.Token)
+def login_access_token(
+    db: Session = Depends(deps.get_db), form_data: OAuth2PasswordRequestForm = Depends()
+) -> Any:
+    """
+    OAuth2 compatible token login, get an access token for future requests
+    """
+    user = crud.crud_user.user.authenticate(
+        db, email=form_data.username, password=form_data.password
+    )
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect email or password",
+        )
+    elif not crud.crud_user.user.is_active(user):
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST, detail="Inactive user"
+        )
+    access_token_expires = timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
+    return {
+        "access_token": security.create_access_token(
+            user.id, expires_delta=access_token_expires
+        ),
+        "token_type": "bearer",
+    }

app/api/api_v1/endpoints/patients.py

@@ -0,0 +1,138 @@
+from typing import Any, List
+
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.orm import Session
+
+from app import crud, models, schemas
+from app.api import deps
+
+router = APIRouter()
+
+
+@router.get("/", response_model=List[schemas.patient.Patient])
+def read_patients(
+    db: Session = Depends(deps.get_db),
+    skip: int = 0,
+    limit: int = 100,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Retrieve patients.
+    """
+    if crud.crud_user.user.is_superuser(current_user):
+        patients = crud.crud_patient.patient.get_multi(db, skip=skip, limit=limit)
+    else:
+        # Regular users can only access their own patient data
+        if current_user.patient:
+            patients = [current_user.patient]
+        else:
+            # If the user is a doctor, we could potentially show all their patients
+            if current_user.doctor:
+                # This would require a more complex query to get all patients that have appointments with this doctor
+                # For simplicity, we'll just return an empty list for now
+                patients = []
+            else:
+                patients = []
+    return patients
+
+
+@router.post("/", response_model=schemas.patient.Patient)
+def create_patient(
+    *,
+    db: Session = Depends(deps.get_db),
+    patient_in: schemas.patient.PatientCreate,
+    current_user: models.User = Depends(deps.get_current_active_superuser),
+) -> Any:
+    """
+    Create new patient.
+    """
+    # Check if user exists
+    user = crud.crud_user.user.get(db, id=patient_in.user_id)
+    if not user:
+        raise HTTPException(
+            status_code=404,
+            detail="The user with this id does not exist in the system",
+        )
+    
+    # Check if patient already exists for this user
+    patient = crud.crud_patient.patient.get_by_user_id(db, user_id=patient_in.user_id)
+    if patient:
+        raise HTTPException(
+            status_code=400,
+            detail="The patient with this user_id already exists in the system",
+        )
+    
+    patient = crud.crud_patient.patient.create(db, obj_in=patient_in)
+    return patient
+
+
+@router.get("/{patient_id}", response_model=schemas.patient.Patient)
+def read_patient(
+    *,
+    db: Session = Depends(deps.get_db),
+    patient_id: int,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Get patient by ID.
+    """
+    patient = crud.crud_patient.patient.get(db, id=patient_id)
+    if not patient:
+        raise HTTPException(status_code=404, detail="Patient not found")
+    
+    # Check permissions
+    if not crud.crud_user.user.is_superuser(current_user):
+        # Regular users can only access their own patient data
+        if not current_user.patient or current_user.patient.id != patient_id:
+            # If the user is a doctor, we could potentially allow them to see their patients
+            if current_user.doctor:
+                # For simplicity, we'll allow doctors to see all patients for now
+                # In a real application, you would check if the patient has an appointment with this doctor
+                pass
+            else:
+                raise HTTPException(status_code=403, detail="Not enough permissions")
+    
+    return patient
+
+
+@router.put("/{patient_id}", response_model=schemas.patient.Patient)
+def update_patient(
+    *,
+    db: Session = Depends(deps.get_db),
+    patient_id: int,
+    patient_in: schemas.patient.PatientUpdate,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Update a patient.
+    """
+    patient = crud.crud_patient.patient.get(db, id=patient_id)
+    if not patient:
+        raise HTTPException(status_code=404, detail="Patient not found")
+    
+    # Check permissions
+    if not crud.crud_user.user.is_superuser(current_user):
+        # Regular users can only update their own patient data
+        if not current_user.patient or current_user.patient.id != patient_id:
+            raise HTTPException(status_code=403, detail="Not enough permissions")
+    
+    patient = crud.crud_patient.patient.update(db, db_obj=patient, obj_in=patient_in)
+    return patient
+
+
+@router.delete("/{patient_id}", response_model=schemas.patient.Patient)
+def delete_patient(
+    *,
+    db: Session = Depends(deps.get_db),
+    patient_id: int,
+    current_user: models.User = Depends(deps.get_current_active_superuser),
+) -> Any:
+    """
+    Delete a patient.
+    """
+    patient = crud.crud_patient.patient.get(db, id=patient_id)
+    if not patient:
+        raise HTTPException(status_code=404, detail="Patient not found")
+    
+    patient = crud.crud_patient.patient.remove(db, id=patient_id)
+    return patient

app/api/api_v1/endpoints/users.py

@@ -0,0 +1,120 @@
+from typing import Any, List
+
+from fastapi import APIRouter, Body, Depends, HTTPException
+from fastapi.encoders import jsonable_encoder
+from pydantic import EmailStr
+from sqlalchemy.orm import Session
+
+from app import crud, models, schemas
+from app.api import deps
+
+router = APIRouter()
+
+
+@router.get("/", response_model=List[schemas.user.User])
+def read_users(
+    db: Session = Depends(deps.get_db),
+    skip: int = 0,
+    limit: int = 100,
+    current_user: models.User = Depends(deps.get_current_active_superuser),
+) -> Any:
+    """
+    Retrieve users.
+    """
+    users = crud.crud_user.user.get_multi(db, skip=skip, limit=limit)
+    return users
+
+
+@router.post("/", response_model=schemas.user.User)
+def create_user(
+    *,
+    db: Session = Depends(deps.get_db),
+    user_in: schemas.user.UserCreate,
+    current_user: models.User = Depends(deps.get_current_active_superuser),
+) -> Any:
+    """
+    Create new user.
+    """
+    user = crud.crud_user.user.get_by_email(db, email=user_in.email)
+    if user:
+        raise HTTPException(
+            status_code=400,
+            detail="The user with this email already exists in the system.",
+        )
+    user = crud.crud_user.user.create(db, obj_in=user_in)
+    return user
+
+
+@router.put("/me", response_model=schemas.user.User)
+def update_user_me(
+    *,
+    db: Session = Depends(deps.get_db),
+    password: str = Body(None),
+    full_name: str = Body(None),
+    email: EmailStr = Body(None),
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Update own user.
+    """
+    current_user_data = jsonable_encoder(current_user)
+    user_in = schemas.user.UserUpdate(**current_user_data)
+    if password is not None:
+        user_in.password = password
+    if full_name is not None:
+        user_in.full_name = full_name
+    if email is not None:
+        user_in.email = email
+    user = crud.crud_user.user.update(db, db_obj=current_user, obj_in=user_in)
+    return user
+
+
+@router.get("/me", response_model=schemas.user.User)
+def read_user_me(
+    db: Session = Depends(deps.get_db),
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Get current user.
+    """
+    return current_user
+
+
+@router.get("/{user_id}", response_model=schemas.user.User)
+def read_user_by_id(
+    user_id: int,
+    current_user: models.User = Depends(deps.get_current_active_user),
+    db: Session = Depends(deps.get_db),
+) -> Any:
+    """
+    Get a specific user by id.
+    """
+    user = crud.crud_user.user.get(db, id=user_id)
+    if user == current_user:
+        return user
+    if not crud.crud_user.user.is_superuser(current_user):
+        raise HTTPException(
+            status_code=400, detail="The user doesn't have enough privileges"
+        )
+    return user
+
+
+@router.put("/{user_id}", response_model=schemas.user.User)
+def update_user(
+    *,
+    db: Session = Depends(deps.get_db),
+    user_id: int,
+    user_in: schemas.user.UserUpdate,
+    current_user: models.User = Depends(deps.get_current_active_superuser),
+) -> Any:
+    """
+    Update a user.
+    """
+    user = crud.crud_user.user.get(db, id=user_id)
+    if not user:
+        raise HTTPException(
+            status_code=404,
+            detail="The user with this username does not exist in the system",
+        )
+    user = crud.crud_user.user.update(db, db_obj=user, obj_in=user_in)
+    return user

app/api/deps.py

@@ -0,0 +1,49 @@
+
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from jose import jwt
+from pydantic import ValidationError
+from sqlalchemy.orm import Session
+
+from app import models, schemas
+from app.core.config import settings
+from app.db.session import get_db
+
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl=f"{settings.API_V1_STR}/login/access-token")
+
+
+def get_current_user(
+    db: Session = Depends(get_db), token: str = Depends(oauth2_scheme)
+) -> models.User:
+    try:
+        payload = jwt.decode(
+            token, settings.JWT_SECRET, algorithms=[settings.JWT_ALGORITHM]
+        )
+        token_data = schemas.token.TokenPayload(**payload)
+    except (jwt.JWTError, ValidationError):
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="Could not validate credentials",
+        )
+    user = db.query(models.User).filter(models.User.id == token_data.sub).first()
+    if not user:
+        raise HTTPException(status_code=404, detail="User not found")
+    return user
+
+
+def get_current_active_user(
+    current_user: models.User = Depends(get_current_user),
+) -> models.User:
+    if not current_user.is_active:
+        raise HTTPException(status_code=400, detail="Inactive user")
+    return current_user
+
+
+def get_current_active_superuser(
+    current_user: models.User = Depends(get_current_user),
+) -> models.User:
+    if not current_user.is_superuser:
+        raise HTTPException(
+            status_code=400, detail="The user doesn't have enough privileges"
+        )
+    return current_user

app/core/config.py

@@ -0,0 +1,44 @@
+import os
+from typing import List, Union
+
+from pydantic import AnyHttpUrl, field_validator
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+class Settings(BaseSettings):
+    API_V1_STR: str = "/api/v1"
+    SECRET_KEY: str = os.environ.get("SECRET_KEY", "development_secret_key")
+    ACCESS_TOKEN_EXPIRE_MINUTES: int = int(os.environ.get("ACCESS_TOKEN_EXPIRE_MINUTES", "60"))  # 1 hour
+    
+    # Project info
+    PROJECT_NAME: str = "Healthcare Management System"
+    PROJECT_DESCRIPTION: str = "Backend API for Healthcare Management System"
+    VERSION: str = "0.1.0"
+    
+    # CORS
+    BACKEND_CORS_ORIGINS: List[AnyHttpUrl] = []
+
+    @field_validator("BACKEND_CORS_ORIGINS", mode="before")
+    def assemble_cors_origins(cls, v: Union[str, List[str]]) -> Union[List[str], str]:
+        if isinstance(v, str) and not v.startswith("["):
+            return [i.strip() for i in v.split(",")]
+        elif isinstance(v, (list, str)):
+            return v
+        raise ValueError(v)
+
+    # JWT
+    JWT_SECRET: str = os.environ.get("JWT_SECRET", SECRET_KEY)
+    JWT_ALGORITHM: str = "HS256"
+    
+    # Database
+    DB_DIR: str = "/app/storage/db"
+    SQLALCHEMY_DATABASE_URL: str = f"sqlite:///{DB_DIR}/db.sqlite"
+    
+    # SQLAlchemy config
+    SQLALCHEMY_TRACK_MODIFICATIONS: bool = False
+    SQLALCHEMY_ECHO: bool = False
+
+    model_config = SettingsConfigDict(case_sensitive=True)
+
+
+settings = Settings()

app/core/security.py

@@ -0,0 +1,31 @@
+from datetime import datetime, timedelta
+from typing import Any, Union
+
+from jose import jwt
+from passlib.context import CryptContext
+
+from app.core.config import settings
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+
+def create_access_token(
+    subject: Union[str, Any], expires_delta: timedelta = None
+) -> str:
+    if expires_delta:
+        expire = datetime.utcnow() + expires_delta
+    else:
+        expire = datetime.utcnow() + timedelta(
+            minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES
+        )
+    to_encode = {"exp": expire, "sub": str(subject)}
+    encoded_jwt = jwt.encode(to_encode, settings.JWT_SECRET, algorithm=settings.JWT_ALGORITHM)
+    return encoded_jwt
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password: str) -> str:
+    return pwd_context.hash(password)

app/crud/base.py

@@ -0,0 +1,66 @@
+from typing import Any, Dict, Generic, List, Optional, Type, TypeVar, Union
+
+from fastapi.encoders import jsonable_encoder
+from pydantic import BaseModel
+from sqlalchemy.orm import Session
+
+from app.db.base import Base
+
+ModelType = TypeVar("ModelType", bound=Base)
+CreateSchemaType = TypeVar("CreateSchemaType", bound=BaseModel)
+UpdateSchemaType = TypeVar("UpdateSchemaType", bound=BaseModel)
+
+
+class CRUDBase(Generic[ModelType, CreateSchemaType, UpdateSchemaType]):
+    def __init__(self, model: Type[ModelType]):
+        """
+        CRUD object with default methods to Create, Read, Update, Delete (CRUD).
+
+        **Parameters**
+
+        * `model`: A SQLAlchemy model class
+        * `schema`: A Pydantic model (schema) class
+        """
+        self.model = model
+
+    def get(self, db: Session, id: Any) -> Optional[ModelType]:
+        return db.query(self.model).filter(self.model.id == id).first()
+
+    def get_multi(
+        self, db: Session, *, skip: int = 0, limit: int = 100
+    ) -> List[ModelType]:
+        return db.query(self.model).offset(skip).limit(limit).all()
+
+    def create(self, db: Session, *, obj_in: CreateSchemaType) -> ModelType:
+        obj_in_data = jsonable_encoder(obj_in)
+        db_obj = self.model(**obj_in_data)
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+
+    def update(
+        self,
+        db: Session,
+        *,
+        db_obj: ModelType,
+        obj_in: Union[UpdateSchemaType, Dict[str, Any]]
+    ) -> ModelType:
+        obj_data = jsonable_encoder(db_obj)
+        if isinstance(obj_in, dict):
+            update_data = obj_in
+        else:
+            update_data = obj_in.model_dump(exclude_unset=True)
+        for field in obj_data:
+            if field in update_data:
+                setattr(db_obj, field, update_data[field])
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+
+    def remove(self, db: Session, *, id: int) -> ModelType:
+        obj = db.query(self.model).get(id)
+        db.delete(obj)
+        db.commit()
+        return obj

app/crud/crud_appointment.py

@@ -0,0 +1,65 @@
+from datetime import datetime
+from typing import List
+
+from sqlalchemy import and_
+from sqlalchemy.orm import Session
+
+from app.crud.base import CRUDBase
+from app.models.appointment import Appointment, AppointmentStatus
+from app.schemas.appointment import AppointmentCreate, AppointmentUpdate
+
+
+class CRUDAppointment(CRUDBase[Appointment, AppointmentCreate, AppointmentUpdate]):
+    def get_by_doctor_and_date_range(
+        self,
+        db: Session,
+        *,
+        doctor_id: int,
+        start_date: datetime,
+        end_date: datetime
+    ) -> List[Appointment]:
+        return (
+            db.query(Appointment)
+            .filter(
+                and_(
+                    Appointment.doctor_id == doctor_id,
+                    Appointment.appointment_datetime >= start_date,
+                    Appointment.appointment_datetime <= end_date
+                )
+            )
+            .all()
+        )
+
+    def get_by_patient(
+        self, db: Session, *, patient_id: int, skip: int = 0, limit: int = 100
+    ) -> List[Appointment]:
+        return (
+            db.query(Appointment)
+            .filter(Appointment.patient_id == patient_id)
+            .offset(skip)
+            .limit(limit)
+            .all()
+        )
+
+    def get_by_doctor(
+        self, db: Session, *, doctor_id: int, skip: int = 0, limit: int = 100
+    ) -> List[Appointment]:
+        return (
+            db.query(Appointment)
+            .filter(Appointment.doctor_id == doctor_id)
+            .offset(skip)
+            .limit(limit)
+            .all()
+        )
+
+    def update_status(
+        self, db: Session, *, db_obj: Appointment, status: AppointmentStatus
+    ) -> Appointment:
+        db_obj.status = status
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+
+
+appointment = CRUDAppointment(Appointment)

app/crud/crud_doctor.py

@@ -0,0 +1,29 @@
+from typing import List, Optional
+
+from sqlalchemy.orm import Session
+
+from app.crud.base import CRUDBase
+from app.models.doctor import Doctor
+from app.schemas.doctor import DoctorCreate, DoctorUpdate
+
+
+class CRUDDoctor(CRUDBase[Doctor, DoctorCreate, DoctorUpdate]):
+    def get_by_user_id(self, db: Session, *, user_id: int) -> Optional[Doctor]:
+        return db.query(Doctor).filter(Doctor.user_id == user_id).first()
+    
+    def get_by_license_number(self, db: Session, *, license_number: str) -> Optional[Doctor]:
+        return db.query(Doctor).filter(Doctor.license_number == license_number).first()
+
+    def get_multi_by_specialty(
+        self, db: Session, *, specialty: str, skip: int = 0, limit: int = 100
+    ) -> List[Doctor]:
+        return (
+            db.query(Doctor)
+            .filter(Doctor.specialty == specialty)
+            .offset(skip)
+            .limit(limit)
+            .all()
+        )
+
+
+doctor = CRUDDoctor(Doctor)

app/crud/crud_doctor_schedule.py

@@ -0,0 +1,43 @@
+from typing import List
+
+from sqlalchemy.orm import Session
+
+from app.crud.base import CRUDBase
+from app.models.doctor_schedule import DoctorSchedule, WeekDay
+from app.schemas.doctor_schedule import DoctorScheduleCreate, DoctorScheduleUpdate
+
+
+class CRUDDoctorSchedule(CRUDBase[DoctorSchedule, DoctorScheduleCreate, DoctorScheduleUpdate]):
+    def get_by_doctor(
+        self, db: Session, *, doctor_id: int, skip: int = 0, limit: int = 100
+    ) -> List[DoctorSchedule]:
+        return (
+            db.query(DoctorSchedule)
+            .filter(DoctorSchedule.doctor_id == doctor_id)
+            .offset(skip)
+            .limit(limit)
+            .all()
+        )
+
+    def get_by_doctor_and_day(
+        self, db: Session, *, doctor_id: int, day: WeekDay
+    ) -> List[DoctorSchedule]:
+        return (
+            db.query(DoctorSchedule)
+            .filter(DoctorSchedule.doctor_id == doctor_id, DoctorSchedule.day_of_week == day)
+            .all()
+        )
+
+    def get_available_doctors_by_day(
+        self, db: Session, *, day: WeekDay, skip: int = 0, limit: int = 100
+    ) -> List[DoctorSchedule]:
+        return (
+            db.query(DoctorSchedule)
+            .filter(DoctorSchedule.day_of_week == day, DoctorSchedule.is_available)
+            .offset(skip)
+            .limit(limit)
+            .all()
+        )
+
+
+doctor_schedule = CRUDDoctorSchedule(DoctorSchedule)

app/crud/crud_medical_record.py

@@ -0,0 +1,34 @@
+from typing import List
+
+from sqlalchemy.orm import Session
+
+from app.crud.base import CRUDBase
+from app.models.medical_record import MedicalRecord
+from app.schemas.medical_record import MedicalRecordCreate, MedicalRecordUpdate
+
+
+class CRUDMedicalRecord(CRUDBase[MedicalRecord, MedicalRecordCreate, MedicalRecordUpdate]):
+    def get_by_patient(
+        self, db: Session, *, patient_id: int, skip: int = 0, limit: int = 100
+    ) -> List[MedicalRecord]:
+        return (
+            db.query(MedicalRecord)
+            .filter(MedicalRecord.patient_id == patient_id)
+            .offset(skip)
+            .limit(limit)
+            .all()
+        )
+
+    def get_by_doctor(
+        self, db: Session, *, doctor_id: int, skip: int = 0, limit: int = 100
+    ) -> List[MedicalRecord]:
+        return (
+            db.query(MedicalRecord)
+            .filter(MedicalRecord.doctor_id == doctor_id)
+            .offset(skip)
+            .limit(limit)
+            .all()
+        )
+
+
+medical_record = CRUDMedicalRecord(MedicalRecord)

app/crud/crud_patient.py

@@ -0,0 +1,15 @@
+from typing import Optional
+
+from sqlalchemy.orm import Session
+
+from app.crud.base import CRUDBase
+from app.models.patient import Patient
+from app.schemas.patient import PatientCreate, PatientUpdate
+
+
+class CRUDPatient(CRUDBase[Patient, PatientCreate, PatientUpdate]):
+    def get_by_user_id(self, db: Session, *, user_id: int) -> Optional[Patient]:
+        return db.query(Patient).filter(Patient.user_id == user_id).first()
+
+
+patient = CRUDPatient(Patient)

app/crud/crud_user.py

@@ -0,0 +1,56 @@
+from typing import Any, Dict, Optional, Union
+
+from sqlalchemy.orm import Session
+
+from app.core.security import get_password_hash, verify_password
+from app.crud.base import CRUDBase
+from app.models.user import User
+from app.schemas.user import UserCreate, UserUpdate
+
+
+class CRUDUser(CRUDBase[User, UserCreate, UserUpdate]):
+    def get_by_email(self, db: Session, *, email: str) -> Optional[User]:
+        return db.query(User).filter(User.email == email).first()
+
+    def create(self, db: Session, *, obj_in: UserCreate) -> User:
+        db_obj = User(
+            email=obj_in.email,
+            hashed_password=get_password_hash(obj_in.password),
+            full_name=obj_in.full_name,
+            is_superuser=obj_in.is_superuser,
+            is_active=obj_in.is_active,
+        )
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+
+    def update(
+        self, db: Session, *, db_obj: User, obj_in: Union[UserUpdate, Dict[str, Any]]
+    ) -> User:
+        if isinstance(obj_in, dict):
+            update_data = obj_in
+        else:
+            update_data = obj_in.model_dump(exclude_unset=True)
+        if update_data.get("password"):
+            hashed_password = get_password_hash(update_data["password"])
+            del update_data["password"]
+            update_data["hashed_password"] = hashed_password
+        return super().update(db, db_obj=db_obj, obj_in=update_data)
+
+    def authenticate(self, db: Session, *, email: str, password: str) -> Optional[User]:
+        user = self.get_by_email(db, email=email)
+        if not user:
+            return None
+        if not verify_password(password, user.hashed_password):
+            return None
+        return user
+
+    def is_active(self, user: User) -> bool:
+        return user.is_active
+
+    def is_superuser(self, user: User) -> bool:
+        return user.is_superuser
+
+
+user = CRUDUser(User)

app/db/base.py

@@ -0,0 +1,3 @@
+from sqlalchemy.ext.declarative import declarative_base
+
+Base = declarative_base()

app/db/base_class.py

@@ -0,0 +1,6 @@
+from app.db.base import Base
+
+# Import all models here for Alembic autogenerate
+
+# Base imported for convenience and usability in other modules
+__all__ = ["Base"]

app/db/session.py

@@ -0,0 +1,28 @@
+from pathlib import Path
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from app.core.config import settings
+
+# Create DB directory if it doesn't exist
+DB_DIR = Path(settings.DB_DIR)
+DB_DIR.mkdir(parents=True, exist_ok=True)
+
+SQLALCHEMY_DATABASE_URL = settings.SQLALCHEMY_DATABASE_URL
+
+engine = create_engine(
+    SQLALCHEMY_DATABASE_URL,
+    connect_args={"check_same_thread": False}
+)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+
+def get_db():
+    """
+    Dependency for getting DB session.
+    """
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()

app/models/appointment.py

@@ -0,0 +1,37 @@
+from datetime import datetime
+from sqlalchemy import Column, DateTime, Enum, ForeignKey, Integer, Text
+from sqlalchemy.orm import relationship
+import enum
+
+from app.db.base import Base
+
+
+class AppointmentStatus(str, enum.Enum):
+    SCHEDULED = "scheduled"
+    CONFIRMED = "confirmed"
+    COMPLETED = "completed"
+    CANCELLED = "cancelled"
+    NO_SHOW = "no_show"
+
+
+class Appointment(Base):
+    __tablename__ = "appointments"
+
+    id = Column(Integer, primary_key=True, index=True)
+    patient_id = Column(Integer, ForeignKey("patients.id"), nullable=False)
+    doctor_id = Column(Integer, ForeignKey("doctors.id"), nullable=False)
+    appointment_datetime = Column(DateTime, nullable=False)
+    duration_minutes = Column(Integer, default=30, nullable=False)
+    status = Column(
+        Enum(AppointmentStatus),
+        default=AppointmentStatus.SCHEDULED,
+        nullable=False
+    )
+    reason = Column(Text, nullable=True)
+    notes = Column(Text, nullable=True)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    # Relationships
+    patient = relationship("Patient", back_populates="appointments")
+    doctor = relationship("Doctor", back_populates="appointments")

app/models/doctor.py

@@ -0,0 +1,23 @@
+from datetime import datetime
+from sqlalchemy import Column, DateTime, ForeignKey, Integer, String, Text
+from sqlalchemy.orm import relationship
+
+from app.db.base import Base
+
+
+class Doctor(Base):
+    __tablename__ = "doctors"
+
+    id = Column(Integer, primary_key=True, index=True)
+    user_id = Column(Integer, ForeignKey("users.id"), unique=True, nullable=False)
+    specialty = Column(String, nullable=False)
+    license_number = Column(String, unique=True, nullable=False)
+    experience_years = Column(Integer, nullable=True)
+    bio = Column(Text, nullable=True)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    # Relationships
+    user = relationship("User", back_populates="doctor")
+    appointments = relationship("Appointment", back_populates="doctor")
+    schedules = relationship("DoctorSchedule", back_populates="doctor")

app/models/doctor_schedule.py

@@ -0,0 +1,35 @@
+from datetime import datetime
+from sqlalchemy import Boolean, Column, DateTime, Enum, ForeignKey, Integer, Time
+from sqlalchemy.orm import relationship
+import enum
+
+from app.db.base import Base
+
+
+class WeekDay(str, enum.Enum):
+    MONDAY = "monday"
+    TUESDAY = "tuesday"
+    WEDNESDAY = "wednesday"
+    THURSDAY = "thursday"
+    FRIDAY = "friday"
+    SATURDAY = "saturday"
+    SUNDAY = "sunday"
+
+
+class DoctorSchedule(Base):
+    __tablename__ = "doctor_schedules"
+
+    id = Column(Integer, primary_key=True, index=True)
+    doctor_id = Column(Integer, ForeignKey("doctors.id"), nullable=False)
+    day_of_week = Column(Enum(WeekDay), nullable=False)
+    start_time = Column(Time, nullable=False)
+    end_time = Column(Time, nullable=False)
+    is_available = Column(Boolean, default=True, nullable=False)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    # Relationships
+    doctor = relationship("Doctor", back_populates="schedules")
+    
+    class Config:
+        orm_mode = True

app/models/medical_record.py

@@ -0,0 +1,23 @@
+from datetime import datetime
+from sqlalchemy import Column, DateTime, ForeignKey, Integer, Text
+from sqlalchemy.orm import relationship
+
+from app.db.base import Base
+
+
+class MedicalRecord(Base):
+    __tablename__ = "medical_records"
+
+    id = Column(Integer, primary_key=True, index=True)
+    patient_id = Column(Integer, ForeignKey("patients.id"), nullable=False)
+    doctor_id = Column(Integer, ForeignKey("doctors.id"), nullable=False)
+    diagnosis = Column(Text, nullable=True)
+    prescription = Column(Text, nullable=True)
+    notes = Column(Text, nullable=True)
+    visit_date = Column(DateTime, default=datetime.utcnow, nullable=False)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    # Relationships
+    patient = relationship("Patient", back_populates="medical_records")
+    doctor = relationship("Doctor")

app/models/patient.py

@@ -0,0 +1,25 @@
+from datetime import datetime
+from sqlalchemy import Column, Date, DateTime, ForeignKey, Integer, String, Text
+from sqlalchemy.orm import relationship
+
+from app.db.base import Base
+
+
+class Patient(Base):
+    __tablename__ = "patients"
+
+    id = Column(Integer, primary_key=True, index=True)
+    user_id = Column(Integer, ForeignKey("users.id"), unique=True, nullable=False)
+    date_of_birth = Column(Date, nullable=True)
+    blood_type = Column(String, nullable=True)
+    allergies = Column(Text, nullable=True)
+    medical_history = Column(Text, nullable=True)
+    emergency_contact_name = Column(String, nullable=True)
+    emergency_contact_phone = Column(String, nullable=True)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    # Relationships
+    user = relationship("User", back_populates="patient")
+    appointments = relationship("Appointment", back_populates="patient")
+    medical_records = relationship("MedicalRecord", back_populates="patient")

app/models/user.py

@@ -0,0 +1,22 @@
+from datetime import datetime
+from sqlalchemy import Boolean, Column, DateTime, Integer, String
+from sqlalchemy.orm import relationship
+
+from app.db.base import Base
+
+
+class User(Base):
+    __tablename__ = "users"
+
+    id = Column(Integer, primary_key=True, index=True)
+    email = Column(String, unique=True, index=True, nullable=False)
+    hashed_password = Column(String, nullable=False)
+    full_name = Column(String, nullable=True)
+    is_active = Column(Boolean, default=True)
+    is_superuser = Column(Boolean, default=False)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    # Relationships
+    doctor = relationship("Doctor", back_populates="user", uselist=False)
+    patient = relationship("Patient", back_populates="user", uselist=False)

app/schemas/appointment.py

@@ -0,0 +1,55 @@
+from datetime import datetime
+from typing import Optional
+from enum import Enum
+
+from pydantic import BaseModel
+
+
+class AppointmentStatus(str, Enum):
+    SCHEDULED = "scheduled"
+    CONFIRMED = "confirmed"
+    COMPLETED = "completed"
+    CANCELLED = "cancelled"
+    NO_SHOW = "no_show"
+
+
+# Shared properties
+class AppointmentBase(BaseModel):
+    appointment_datetime: Optional[datetime] = None
+    duration_minutes: Optional[int] = 30
+    status: Optional[AppointmentStatus] = AppointmentStatus.SCHEDULED
+    reason: Optional[str] = None
+    notes: Optional[str] = None
+
+
+# Properties to receive via API on creation
+class AppointmentCreate(AppointmentBase):
+    patient_id: int
+    doctor_id: int
+    appointment_datetime: datetime
+
+
+# Properties to receive via API on update
+class AppointmentUpdate(AppointmentBase):
+    pass
+
+
+class AppointmentInDBBase(AppointmentBase):
+    id: Optional[int] = None
+    patient_id: int
+    doctor_id: int
+    created_at: Optional[datetime] = None
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+# Additional properties to return via API
+class Appointment(AppointmentInDBBase):
+    pass
+
+
+# Additional properties stored in DB
+class AppointmentInDB(AppointmentInDBBase):
+    pass

app/schemas/doctor.py

@@ -0,0 +1,44 @@
+from datetime import datetime
+from typing import Optional
+
+from pydantic import BaseModel
+
+
+# Shared properties
+class DoctorBase(BaseModel):
+    specialty: Optional[str] = None
+    license_number: Optional[str] = None
+    experience_years: Optional[int] = None
+    bio: Optional[str] = None
+
+
+# Properties to receive via API on creation
+class DoctorCreate(DoctorBase):
+    user_id: int
+    specialty: str
+    license_number: str
+
+
+# Properties to receive via API on update
+class DoctorUpdate(DoctorBase):
+    pass
+
+
+class DoctorInDBBase(DoctorBase):
+    id: Optional[int] = None
+    user_id: int
+    created_at: Optional[datetime] = None
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+# Additional properties to return via API
+class Doctor(DoctorInDBBase):
+    pass
+
+
+# Additional properties stored in DB
+class DoctorInDB(DoctorInDBBase):
+    pass

app/schemas/doctor_schedule.py

@@ -0,0 +1,56 @@
+from datetime import datetime, time
+from typing import Optional
+from enum import Enum
+
+from pydantic import BaseModel
+
+
+class WeekDay(str, Enum):
+    MONDAY = "monday"
+    TUESDAY = "tuesday"
+    WEDNESDAY = "wednesday"
+    THURSDAY = "thursday"
+    FRIDAY = "friday"
+    SATURDAY = "saturday"
+    SUNDAY = "sunday"
+
+
+# Shared properties
+class DoctorScheduleBase(BaseModel):
+    day_of_week: Optional[WeekDay] = None
+    start_time: Optional[time] = None
+    end_time: Optional[time] = None
+    is_available: Optional[bool] = True
+
+
+# Properties to receive via API on creation
+class DoctorScheduleCreate(DoctorScheduleBase):
+    doctor_id: int
+    day_of_week: WeekDay
+    start_time: time
+    end_time: time
+
+
+# Properties to receive via API on update
+class DoctorScheduleUpdate(DoctorScheduleBase):
+    pass
+
+
+class DoctorScheduleInDBBase(DoctorScheduleBase):
+    id: Optional[int] = None
+    doctor_id: int
+    created_at: Optional[datetime] = None
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+# Additional properties to return via API
+class DoctorSchedule(DoctorScheduleInDBBase):
+    pass
+
+
+# Additional properties stored in DB
+class DoctorScheduleInDB(DoctorScheduleInDBBase):
+    pass

app/schemas/medical_record.py

@@ -0,0 +1,45 @@
+from datetime import datetime
+from typing import Optional
+
+from pydantic import BaseModel
+
+
+# Shared properties
+class MedicalRecordBase(BaseModel):
+    diagnosis: Optional[str] = None
+    prescription: Optional[str] = None
+    notes: Optional[str] = None
+    visit_date: Optional[datetime] = None
+
+
+# Properties to receive via API on creation
+class MedicalRecordCreate(MedicalRecordBase):
+    patient_id: int
+    doctor_id: int
+    visit_date: datetime
+
+
+# Properties to receive via API on update
+class MedicalRecordUpdate(MedicalRecordBase):
+    pass
+
+
+class MedicalRecordInDBBase(MedicalRecordBase):
+    id: Optional[int] = None
+    patient_id: int
+    doctor_id: int
+    created_at: Optional[datetime] = None
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+# Additional properties to return via API
+class MedicalRecord(MedicalRecordInDBBase):
+    pass
+
+
+# Additional properties stored in DB
+class MedicalRecordInDB(MedicalRecordInDBBase):
+    pass

app/schemas/patient.py

@@ -0,0 +1,44 @@
+from datetime import date, datetime
+from typing import Optional
+
+from pydantic import BaseModel
+
+
+# Shared properties
+class PatientBase(BaseModel):
+    date_of_birth: Optional[date] = None
+    blood_type: Optional[str] = None
+    allergies: Optional[str] = None
+    medical_history: Optional[str] = None
+    emergency_contact_name: Optional[str] = None
+    emergency_contact_phone: Optional[str] = None
+
+
+# Properties to receive via API on creation
+class PatientCreate(PatientBase):
+    user_id: int
+
+
+# Properties to receive via API on update
+class PatientUpdate(PatientBase):
+    pass
+
+
+class PatientInDBBase(PatientBase):
+    id: Optional[int] = None
+    user_id: int
+    created_at: Optional[datetime] = None
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+# Additional properties to return via API
+class Patient(PatientInDBBase):
+    pass
+
+
+# Additional properties stored in DB
+class PatientInDB(PatientInDBBase):
+    pass

app/schemas/token.py

@@ -0,0 +1,12 @@
+from typing import Optional
+
+from pydantic import BaseModel
+
+
+class Token(BaseModel):
+    access_token: str
+    token_type: str
+
+
+class TokenPayload(BaseModel):
+    sub: Optional[int] = None

app/schemas/user.py

@@ -0,0 +1,42 @@
+from datetime import datetime
+from typing import Optional
+
+from pydantic import BaseModel, EmailStr
+
+
+# Shared properties
+class UserBase(BaseModel):
+    email: Optional[EmailStr] = None
+    is_active: Optional[bool] = True
+    is_superuser: bool = False
+    full_name: Optional[str] = None
+
+
+# Properties to receive via API on creation
+class UserCreate(UserBase):
+    email: EmailStr
+    password: str
+
+
+# Properties to receive via API on update
+class UserUpdate(UserBase):
+    password: Optional[str] = None
+
+
+class UserInDBBase(UserBase):
+    id: Optional[int] = None
+    created_at: Optional[datetime] = None
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+# Additional properties to return via API
+class User(UserInDBBase):
+    pass
+
+
+# Additional properties stored in DB
+class UserInDB(UserInDBBase):
+    hashed_password: str

main.py

@@ -0,0 +1,50 @@
+import uvicorn
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from app.api.api_v1.api import api_router
+from app.core.config import settings
+
+app = FastAPI(
+    title=settings.PROJECT_NAME,
+    description=settings.PROJECT_DESCRIPTION,
+    version=settings.VERSION,
+    openapi_url="/openapi.json",
+    docs_url="/docs",
+    redoc_url="/redoc",
+)
+
+# Set up CORS middleware
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# Include routers
+app.include_router(api_router, prefix=settings.API_V1_STR)
+
+@app.get("/")
+async def root():
+    """
+    Root endpoint that returns basic service information.
+    """
+    return {
+        "title": settings.PROJECT_NAME,
+        "description": settings.PROJECT_DESCRIPTION,
+        "version": settings.VERSION,
+        "docs": "/docs",
+        "health": "/health",
+    }
+
+@app.get("/health", status_code=200)
+async def health_check():
+    """
+    Health check endpoint.
+    """
+    return {"status": "healthy"}
+
+if __name__ == "__main__":
+    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)

migrations/README

@@ -0,0 +1 @@
+Generic single-database configuration for Alembic migrations.

migrations/env.py

@@ -0,0 +1,84 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+from app.db.base import Base
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = Base.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        is_sqlite = connection.dialect.name == "sqlite"
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+            render_as_batch=is_sqlite,  # Key configuration for SQLite
+            # Ensuring we're comparing type metadata, which is important for alembic autogenerate
+            compare_type=True,
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

migrations/script.py.mako

@@ -0,0 +1,26 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

migrations/versions/001_initial_migration.py

@@ -0,0 +1,117 @@
+"""Initial migration
+
+Revision ID: 001
+Revises: 
+Create Date: 2023-06-09
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '001'
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # users table
+    op.create_table(
+        'users',
+        sa.Column('id', sa.Integer(), primary_key=True, index=True),
+        sa.Column('email', sa.String(), unique=True, index=True, nullable=False),
+        sa.Column('hashed_password', sa.String(), nullable=False),
+        sa.Column('full_name', sa.String(), nullable=True),
+        sa.Column('is_active', sa.Boolean(), default=True),
+        sa.Column('is_superuser', sa.Boolean(), default=False),
+        sa.Column('created_at', sa.DateTime(), default=sa.func.current_timestamp()),
+        sa.Column('updated_at', sa.DateTime(), default=sa.func.current_timestamp(), onupdate=sa.func.current_timestamp()),
+    )
+
+    # doctors table
+    op.create_table(
+        'doctors',
+        sa.Column('id', sa.Integer(), primary_key=True, index=True),
+        sa.Column('user_id', sa.Integer(), sa.ForeignKey('users.id'), unique=True, nullable=False),
+        sa.Column('specialty', sa.String(), nullable=False),
+        sa.Column('license_number', sa.String(), unique=True, nullable=False),
+        sa.Column('experience_years', sa.Integer(), nullable=True),
+        sa.Column('bio', sa.Text(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), default=sa.func.current_timestamp()),
+        sa.Column('updated_at', sa.DateTime(), default=sa.func.current_timestamp(), onupdate=sa.func.current_timestamp()),
+    )
+
+    # patients table
+    op.create_table(
+        'patients',
+        sa.Column('id', sa.Integer(), primary_key=True, index=True),
+        sa.Column('user_id', sa.Integer(), sa.ForeignKey('users.id'), unique=True, nullable=False),
+        sa.Column('date_of_birth', sa.Date(), nullable=True),
+        sa.Column('blood_type', sa.String(), nullable=True),
+        sa.Column('allergies', sa.Text(), nullable=True),
+        sa.Column('medical_history', sa.Text(), nullable=True),
+        sa.Column('emergency_contact_name', sa.String(), nullable=True),
+        sa.Column('emergency_contact_phone', sa.String(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), default=sa.func.current_timestamp()),
+        sa.Column('updated_at', sa.DateTime(), default=sa.func.current_timestamp(), onupdate=sa.func.current_timestamp()),
+    )
+
+    # doctor_schedules table
+    op.create_table(
+        'doctor_schedules',
+        sa.Column('id', sa.Integer(), primary_key=True, index=True),
+        sa.Column('doctor_id', sa.Integer(), sa.ForeignKey('doctors.id'), nullable=False),
+        sa.Column('day_of_week', sa.Enum('monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday', 'sunday', name='weekday'), nullable=False),
+        sa.Column('start_time', sa.Time(), nullable=False),
+        sa.Column('end_time', sa.Time(), nullable=False),
+        sa.Column('is_available', sa.Boolean(), default=True, nullable=False),
+        sa.Column('created_at', sa.DateTime(), default=sa.func.current_timestamp()),
+        sa.Column('updated_at', sa.DateTime(), default=sa.func.current_timestamp(), onupdate=sa.func.current_timestamp()),
+    )
+
+    # appointments table
+    op.create_table(
+        'appointments',
+        sa.Column('id', sa.Integer(), primary_key=True, index=True),
+        sa.Column('patient_id', sa.Integer(), sa.ForeignKey('patients.id'), nullable=False),
+        sa.Column('doctor_id', sa.Integer(), sa.ForeignKey('doctors.id'), nullable=False),
+        sa.Column('appointment_datetime', sa.DateTime(), nullable=False),
+        sa.Column('duration_minutes', sa.Integer(), default=30, nullable=False),
+        sa.Column('status', sa.Enum('scheduled', 'confirmed', 'completed', 'cancelled', 'no_show', name='appointmentstatus'), default='scheduled', nullable=False),
+        sa.Column('reason', sa.Text(), nullable=True),
+        sa.Column('notes', sa.Text(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), default=sa.func.current_timestamp()),
+        sa.Column('updated_at', sa.DateTime(), default=sa.func.current_timestamp(), onupdate=sa.func.current_timestamp()),
+    )
+
+    # medical_records table
+    op.create_table(
+        'medical_records',
+        sa.Column('id', sa.Integer(), primary_key=True, index=True),
+        sa.Column('patient_id', sa.Integer(), sa.ForeignKey('patients.id'), nullable=False),
+        sa.Column('doctor_id', sa.Integer(), sa.ForeignKey('doctors.id'), nullable=False),
+        sa.Column('diagnosis', sa.Text(), nullable=True),
+        sa.Column('prescription', sa.Text(), nullable=True),
+        sa.Column('notes', sa.Text(), nullable=True),
+        sa.Column('visit_date', sa.DateTime(), default=sa.func.current_timestamp(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), default=sa.func.current_timestamp()),
+        sa.Column('updated_at', sa.DateTime(), default=sa.func.current_timestamp(), onupdate=sa.func.current_timestamp()),
+    )
+
+
+def downgrade() -> None:
+    # Drop tables in reverse order of creation
+    op.drop_table('medical_records')
+    op.drop_table('appointments')
+    op.drop_table('doctor_schedules')
+    op.drop_table('patients')
+    op.drop_table('doctors')
+    op.drop_table('users')
+    
+    # Drop enums
+    op.execute('DROP TYPE IF EXISTS appointmentstatus')
+    op.execute('DROP TYPE IF EXISTS weekday')

requirements.txt

@@ -0,0 +1,13 @@
+fastapi>=0.95.0,<0.96.0
+uvicorn>=0.21.1,<0.22.0
+sqlalchemy>=2.0.7,<2.1.0
+pydantic>=2.0.0,<3.0.0
+pydantic-settings>=2.0.0,<3.0.0
+alembic>=1.10.2,<1.11.0
+python-jose[cryptography]>=3.3.0,<3.4.0
+passlib[bcrypt]>=1.7.4,<1.8.0
+python-multipart>=0.0.6,<0.1.0
+email-validator>=2.0.0,<3.0.0
+ruff>=0.0.262,<0.1.0
+pytest>=7.3.1,<7.4.0
+httpx>=0.24.0,<0.25.0