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"""
Database API Client for Smart Parking System
Connects to the PHP backend API at https://aadarshsenapati.in/api/api.php
"""
import requests
from typing import Dict, List, Optional
import json
class DatabaseAPI:
"""Client for interacting with the parking database API"""
def __init__(self, base_url: str = "https://aadarshsenapati.in/api/api.php"):
self.base_url = base_url
self.session = requests.Session()
def _make_request(self, action: str, method: str = "GET", data: Dict = None) -> Dict:
"""Make API request"""
try:
url = f"{self.base_url}?action={action}"
if method == "GET":
response = self.session.get(url, timeout=10)
else:
response = self.session.post(
url,
json=data,
headers={'Content-Type': 'application/json'},
timeout=10
)
response.raise_for_status()
return response.json()
except requests.exceptions.RequestException as e:
return {
"status": "error",
"message": f"API request failed: {str(e)}"
}
# User Management
def register_user(self, name: str, phone: str, email: str = "") -> Dict:
"""
Register a new user or update existing user
Args:
name: User's name
phone: User's phone number (unique identifier)
email: User's email address (optional)
Returns:
{"status": "success", "message": "User registered successfully"}
"""
data = {
"name": name,
"phone": phone,
"email": email
}
return self._make_request("register_user", "POST", data)
# Parking Lots
def get_parking_lots(self) -> Dict:
"""
Get all available parking lots
NOTE: Current API returns parking_lots table data (lot-level, not slot-level)
For proper functionality, API should return parking_slots data or joined data.
Returns:
{
"status": "success",
"data": [
{
"lot_id": "1",
"lot_name": "A1",
"latitude": "16.4645659",
"longitude": "80.5076208",
"total_slots": "0",
"address": "SRM University AP",
...
}
]
}
"""
return self._make_request("get_parking_lots", "GET")
def get_available_slots(self, parking_lot_id: int) -> Dict:
"""
Get available slots for a specific parking lot
Uses the new 'get_available_slots' endpoint in the PHP API
Args:
parking_lot_id: The parking lot ID to get available slots for
Returns:
{
"status": "success",
"data": [
{
"id": 1,
"parking_lot_id": 1,
"slot_number": "A1",
"vehicle_type": "4-wheeler",
"is_available": 1,
"is_active": 1,
"hourly_rate": "60.00",
...
}
]
}
"""
data = {"parking_lot_id": parking_lot_id}
return self._make_request("get_available_slots", "GET", data)
def get_all_available_slots(self) -> Dict:
"""
Get all available slots from all parking lots
Returns:
Combined data from all parking lots
"""
# First get all parking lots
lots_result = self.get_parking_lots()
if lots_result['status'] != 'success':
return lots_result
all_slots = []
lots = lots_result.get('data', [])
# Get available slots for each parking lot
for lot in lots:
lot_id = int(lot.get('lot_id', 0))
if lot_id:
slots_result = self.get_available_slots(lot_id)
if slots_result['status'] == 'success':
# The API might return slots directly in 'data' or nested in 'available_slots'
slots_data = slots_result.get('data', [])
# Handle nested structure: data is a list with lot info and available_slots array
if slots_data and isinstance(slots_data, list):
for item in slots_data:
# Check if slots are nested in 'available_slots' field
if 'available_slots' in item:
nested_slots = item.get('available_slots', [])
# Add lot information to each nested slot
for slot in nested_slots:
slot['lot_latitude'] = lot.get('latitude')
slot['lot_longitude'] = lot.get('longitude')
slot['lot_name'] = lot.get('lot_name')
slot['lot_address'] = lot.get('address')
slot['parking_lot_id'] = lot_id
all_slots.extend(nested_slots)
else:
# Slots are directly in the data array
item['lot_latitude'] = lot.get('latitude')
item['lot_longitude'] = lot.get('longitude')
item['lot_name'] = lot.get('lot_name')
item['lot_address'] = lot.get('address')
all_slots.append(item)
return {
'status': 'success',
'data': all_slots,
'total_lots': len(lots),
'total_slots': len(all_slots)
}
def get_parking_slots(self, lot_id: Optional[int] = None) -> Dict:
"""
Get parking slots (individual parking spaces)
DEPRECATED: Use get_available_slots() or get_all_available_slots() instead
Args:
lot_id: Optional lot ID to filter slots
Returns:
Slot data with availability, pricing, vehicle type
"""
if lot_id:
return self.get_available_slots(lot_id)
else:
return self.get_all_available_slots()
def _generate_slots_from_lots(self, lots: List[Dict]) -> Dict:
"""
TEMPORARY: Generate mock slot data from parking lot data
This is a workaround until the PHP API provides proper slot endpoints
"""
slots = []
for lot in lots:
lot_id = lot.get('lot_id')
total_slots = int(lot.get('total_slots', 5))
# If total_slots is 0, create some default slots
if total_slots == 0:
total_slots = 5
# Create individual slots for this lot
for i in range(1, total_slots + 1):
slot = {
'slot_id': str(i + (int(lot_id) - 1) * 100), # Generate unique slot_id
'lot_id': lot_id,
'slot_number': str(i),
'lot_name': lot.get('lot_name', 'Unknown'),
'latitude': lot.get('latitude'),
'longitude': lot.get('longitude'),
'address': lot.get('address', ''),
'vehicle_type': '4-wheeler' if i % 3 != 0 else '2-wheeler',
'is_available': '1' if i % 4 != 0 else '0', # 75% available
'hourly_rate': '60.00' if i % 3 != 0 else '30.00' # Cars more expensive
}
slots.append(slot)
return {
'status': 'success',
'data': slots,
'generated': True, # Flag to indicate this is mock data
'message': 'Mock slots generated from lot data'
}
# Booking Management
def book_slot(self, user_id: int, slot_id: int, start_time: str,
end_time: str, total_amount: float) -> Dict:
"""
Book a parking slot
Args:
user_id: User ID from database
slot_id: Parking slot ID
start_time: Booking start time (format: YYYY-MM-DD HH:MM:SS)
end_time: Booking end time (format: YYYY-MM-DD HH:MM:SS)
total_amount: Total booking amount
Returns:
{"status": "success", "booking_uid": "ABC12345"}
"""
data = {
"user_id": user_id,
"slot_id": slot_id,
"start_time": start_time,
"end_time": end_time,
"total_amount": total_amount
}
result = self._make_request("book_slot", "POST", data)
# If booking successful, mark slot as unavailable
if result.get('status') == 'success':
self.update_slot_availability(slot_id, is_available=0)
return result
def update_slot_availability(self, slot_id: int, is_available: int) -> Dict:
"""
Update parking slot availability status
Args:
slot_id: Parking slot ID
is_available: Availability status (1 = available, 0 = booked/unavailable)
Returns:
{"status": "success", "message": "Slot updated successfully"}
"""
data = {
"slot_id": slot_id,
"is_available": is_available
}
return self._make_request("update_slot", "POST", data)
def update_payment(self, booking_uid: str, payment_status: str,
transaction_id: str = "", amount: float = 0) -> Dict:
"""
Update payment status for a booking
Args:
booking_uid: Unique booking ID (e.g., "ABC12345")
payment_status: Payment status ("Pending", "Paid", "Failed", "Refunded")
transaction_id: Razorpay transaction ID (optional)
amount: Payment amount (optional)
Returns:
{"status": "success", "message": "Payment status updated successfully"}
"""
data = {
"booking_uid": booking_uid,
"payment_status": payment_status,
"transaction_id": transaction_id,
"amount": amount
}
return self._make_request("update_payment_status", "POST", data)
def get_booking_status(self, booking_uid: str) -> Dict:
"""
Get booking details by booking UID
Args:
booking_uid: Unique booking ID
Returns:
{
"status": "success",
"data": {
"id": 1,
"user_id": 1,
"slot_id": 5,
"booking_uid": "ABC12345",
"start_time": "2025-10-28 10:00:00",
"end_time": "2025-10-28 12:00:00",
"total_amount": 100.0,
"payment_status": "Completed",
"status": "Active"
}
}
"""
url = f"{self.base_url}?action=get_booking_status&booking_uid={booking_uid}"
try:
response = self.session.get(url, timeout=10)
response.raise_for_status()
return response.json()
except requests.exceptions.RequestException as e:
return {
"status": "error",
"message": f"Failed to get booking status: {str(e)}"
}
def cancel_booking(self, booking_uid: str) -> Dict:
"""
Cancel a booking and release the slot
Args:
booking_uid: Unique booking ID
Returns:
{"status": "success", "message": "Booking cancelled"}
"""
# First get booking details to find the slot_id
booking_result = self.get_booking_status(booking_uid)
# Cancel the booking
data = {"booking_uid": booking_uid}
result = self._make_request("cancel_booking", "POST", data)
# If cancellation successful and we have slot_id, release the slot
if result.get('status') == 'success' and booking_result.get('status') == 'success':
booking_data = booking_result.get('data', {})
slot_id = booking_data.get('slot_id')
if slot_id:
self.update_slot_availability(int(slot_id), is_available=1)
return result
return result
# Feedback
def add_feedback(self, user_id: int, booking_id: int,
rating: float, comments: str = "") -> Dict:
"""
Add user feedback for a booking
Args:
user_id: User ID
booking_id: Booking ID (not booking_uid)
rating: Rating (1-5)
comments: Optional comments
Returns:
{"status": "success", "message": "Feedback added"}
"""
data = {
"user_id": user_id,
"booking_id": booking_id,
"rating": rating,
"comments": comments
}
return self._make_request("add_feedback", "POST", data)
# Helper functions for data transformation
def transform_parking_lots_for_ai(parking_slots: List[Dict]) -> List[Dict]:
"""
Transform database parking slots to AI model format
Database format (from get_available_slots):
- id (slot_id), parking_lot_id, slot_number, vehicle_type,
is_available, is_active, hourly_rate
- lot_latitude, lot_longitude, lot_name, lot_address (added by get_all_available_slots)
AI model expects:
- slot_id, latitude, longitude, avg_feedback, popularity_score,
is_available, price_factor, price_per_hour, proximity_score
"""
transformed = []
for slot in parking_slots:
# Get slot identifier - prefer slot_number, fallback to id
slot_db_id = slot.get('id') or slot.get('slot_id')
slot_number = slot.get('slot_number', '')
lot_name = slot.get('lot_name', '')
# Create readable slot ID
if lot_name and slot_number:
slot_id_str = f"{lot_name}-{slot_number}"
elif slot_number:
slot_id_str = f"SLOT-{slot_number}"
else:
slot_id_str = f"SLOT-{slot_db_id}"
# Get coordinates - prefer lot_latitude/longitude, fallback to direct fields
latitude = float(slot.get('lot_latitude') or slot.get('latitude') or 0)
longitude = float(slot.get('lot_longitude') or slot.get('longitude') or 0)
# Get price - could be 'hourly_rate' or 'price_per_hour'
price = float(slot.get('hourly_rate') or slot.get('price_per_hour') or 50)
# Get availability - could be 'is_available' (0/1) or boolean
is_available = slot.get('is_available')
if is_available is not None:
is_available = bool(int(is_available)) if isinstance(is_available, (str, int)) else bool(is_available)
else:
is_available = True
# Check if slot is active
is_active = slot.get('is_active', 1)
is_active = bool(int(is_active)) if isinstance(is_active, (str, int)) else bool(is_active)
# Only include active slots
if not is_active:
continue
transformed_slot = {
'slot_id': slot_id_str,
'latitude': latitude,
'longitude': longitude,
'avg_feedback': 3.5, # Default, will be updated with real feedback
'popularity_score': 0.5, # Default, will be calculated from booking history
'proximity_score': 0.5, # Default, will be calculated based on user location
'is_available': is_available,
'price_factor': min(price / 100, 1.0), # Normalize to 0-1 range
'price_per_hour': price,
# Keep original data for reference
'db_slot_id': slot_db_id,
'db_lot_id': slot.get('parking_lot_id'),
'slot_number': slot_number,
'lot_name': lot_name,
'location': slot.get('lot_address') or slot.get('address') or slot.get('location') or '',
'vehicle_type': slot.get('vehicle_type', 'all')
}
transformed.append(transformed_slot)
return transformed
# Example usage and testing
if __name__ == "__main__":
# Initialize API client
api = DatabaseAPI()
print("Testing Database API Integration\n")
print("=" * 50)
# Test 1: Get parking lots
print("\n1. Fetching parking lots...")
result = api.get_parking_lots()
if result['status'] == 'success':
print(f"✅ Found {len(result.get('data', []))} parking lots")
if result.get('data'):
print(f" First lot: {result['data'][0].get('lot_name')}")
else:
print(f"❌ Error: {result.get('message')}")
# Test 1b: Get available slots
print("\n1b. Fetching available slots from all lots...")
result = api.get_all_available_slots()
if result['status'] == 'success':
print(f"✅ Found {result.get('total_slots')} available slots from {result.get('total_lots')} lots")
if result.get('data'):
slot = result['data'][0]
print(f" First slot: {slot.get('slot_number')} (Lot: {slot.get('lot_name')})")
print(f" Type: {slot.get('vehicle_type')}, Rate: ₹{slot.get('hourly_rate')}/hr")
else:
print(f"❌ Error: {result.get('message')}")
# Test 2: Register user (example)
print("\n2. Testing user registration...")
result = api.register_user(
name="Test User",
phone="+919876543210",
email="test@example.com"
)
print(f" Status: {result.get('status')} - {result.get('message')}")
# Test 3: Transform data for AI
print("\n3. Testing data transformation...")
slots_result = api.get_all_available_slots()
if slots_result['status'] == 'success' and slots_result.get('data'):
transformed = transform_parking_lots_for_ai(slots_result['data'])
print(f"✅ Transformed {len(transformed)} slots for AI model")
if transformed:
slot = transformed[0]
print(f" Example: {slot['slot_id']} at ({slot['latitude']}, {slot['longitude']})")
print(f" Price: ₹{slot['price_per_hour']}/hr, Available: {slot['is_available']}")
print("\n" + "=" * 50)
print("Database API client ready for integration!")
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