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import os
from datetime import datetime, timedelta
from typing import List, Optional, Dict, Any
from dotenv import load_dotenv
from supabase import create_client, Client
from cache import cache # Import Redis cache
import uuid
load_dotenv()
SUPABASE_URL = os.getenv("SUPABASE_URL")
SUPABASE_KEY = os.getenv("SUPABASE_KEY")
class Database:
def __init__(self):
self.client = None
if SUPABASE_URL and SUPABASE_KEY:
try:
self.client: Client = create_client(SUPABASE_URL, SUPABASE_KEY)
except Exception as e:
print(f"Failed to initialize Supabase client: {e}")
# In-memory mock storage
self.mock_users = [
{"contact_number": "5550101", "name": "Alice Test", "created_at": datetime.now().isoformat()},
{"contact_number": "9730102", "name": "Naresh", "created_at": datetime.now().isoformat()}
]
self.mock_appointments = [
{
"id": "mock_apt_1",
"contact_number": "555-0101",
"appointment_time": "2026-01-22T10:00:00",
"status": "confirmed",
"purpose": "Checkup",
"created_at": datetime.now().isoformat()
}
]
self.mock_summaries = []
self.mock_chat_messages = []
self.cache = cache
# Initialize Mock Slots (Next 10 days)
self.mock_slots = []
base_time = datetime.now().replace(minute=0, second=0, microsecond=0)
for d in range(1, 11):
day = base_time + timedelta(days=d)
for h in [9, 10, 14, 16]:
slot_time = day.replace(hour=h).isoformat()
self.mock_slots.append({"slot_time": slot_time, "is_booked": False})
def get_available_slots(self) -> List[str]:
"""Get list of available slot times."""
if self.client:
try:
response = self.client.table("appointment_slots")\
.select("slot_time")\
.eq("is_booked", False)\
.gt("slot_time", datetime.now().isoformat())\
.order("slot_time")\
.execute()
return [row["slot_time"] for row in response.data]
except Exception as e:
print(f"Error fetching slots from DB: {e}")
# Mock fallback
# Filter mock slots that are in future and not booked
now_str = datetime.now().isoformat()
return [s["slot_time"] for s in self.mock_slots if not s["is_booked"] and s["slot_time"] > now_str]
def get_user(self, contact_number: str) -> Optional[Dict[str, Any]]:
"""Check if a user exists by contact number (with caching)."""
# Normalize input: remove non-digit characters
contact_number = "".join(filter(str.isdigit, str(contact_number)))
# Try cache first
cache_key = f"user:{contact_number}"
cached_user = self.cache.get(cache_key)
if cached_user:
return cached_user
if self.client:
try:
response = self.client.table("users").select("*").eq("contact_number", contact_number).execute()
if response.data:
user = response.data[0]
# Cache for 1 hour
self.cache.set(cache_key, user, ttl=3600)
return user
except Exception as e:
print(f"Error fetching user from DB (falling back to mock): {e}")
# Mock implementation fallback
for user in self.mock_users:
if user["contact_number"] == contact_number:
return user
return None
def create_user(self, contact_number: str, name: str = "Unknown") -> Optional[Dict[str, Any]]:
"""Create a new user."""
if self.client:
try:
data = {"contact_number": contact_number, "name": name}
# Use upsert to handle potential race conditions or existing users
response = self.client.table("users").upsert(data).execute()
if response.data:
return response.data[0]
except Exception as e:
print(f"Error creating user in DB (falling back to mock): {e}")
# Mock implementation fallback
new_user = {"contact_number": contact_number, "name": name, "created_at": datetime.now().isoformat()}
self.mock_users.append(new_user)
return new_user
def get_user_appointments(self, contact_number: str) -> List[Dict[str, Any]]:
"""Fetch past and upcoming appointments for a user."""
if self.client:
try:
response = self.client.table("appointments")\
.select("*")\
.eq("contact_number", contact_number)\
.order("appointment_time", desc=True)\
.execute()
return response.data
except Exception as e:
print(f"Error fetching appointments from DB (falling back to mock): {e}")
# Mock implementation fallback
return [
apt for apt in self.mock_appointments
if apt["contact_number"] == contact_number and apt["status"] != "cancelled"
]
def check_slot_availability(self, appointment_time: datetime) -> bool:
"""Check if a slot is valid and available."""
time_str = appointment_time.isoformat()
if self.client:
try:
# Check appointment_slots table for validity and availability
response = self.client.table("appointment_slots")\
.select("*")\
.eq("slot_time", time_str)\
.eq("is_booked", False)\
.execute()
return len(response.data) > 0
except Exception as e:
print(f"Error checking availability in DB (falling back to mock): {e}")
# Mock fallback
for slot in self.mock_slots:
if slot["slot_time"] == time_str:
return not slot["is_booked"]
return False
def book_appointment(self, contact_number: str, appointment_time: str, purpose: str = "General") -> Optional[Dict[str, Any]]:
"""Book an appointment and mark slot as booked."""
if self.client:
try:
# 1. Insert into appointments
data = {
"contact_number": contact_number,
"appointment_time": appointment_time,
"status": "confirmed",
"purpose": purpose
}
response = self.client.table("appointments").insert(data).execute()
# 2. Mark slot as booked
self.client.table("appointment_slots")\
.update({"is_booked": True})\
.eq("slot_time", appointment_time)\
.execute()
if response.data:
return response.data[0]
except Exception as e:
print(f"Error booking appointment in DB (falling back to mock): {e}")
# Mock implementation fallback
import random
apt_id = f"APT-{random.randint(1000, 9999)}"
new_apt = {
"id": apt_id,
"contact_number": contact_number,
"appointment_time": appointment_time,
"status": "confirmed",
"purpose": purpose,
"created_at": datetime.now().isoformat()
}
self.mock_appointments.append(new_apt)
# Mark mock slot as booked
for slot in self.mock_slots:
if slot["slot_time"] == appointment_time:
slot["is_booked"] = True
return new_apt
def cancel_appointment(self, appointment_id: str) -> bool:
"""Cancel an appointment."""
if self.client:
try:
response = self.client.table("appointments")\
.update({"status": "cancelled"})\
.eq("id", appointment_id)\
.execute()
return True
except Exception as e:
print(f"Error cancelling appointment in DB (falling back to mock): {e}")
# Mock implementation fallback
for apt in self.mock_appointments:
if apt["id"] == appointment_id:
apt["status"] = "cancelled"
return True
return False
def modify_appointment(self, appointment_id: str, new_time: str) -> bool:
"""Modify appointment time."""
if self.client:
try:
response = self.client.table("appointments")\
.update({"appointment_time": new_time})\
.eq("id", appointment_id)\
.execute()
return True
except Exception as e:
print(f"Error modifying appointment in DB (falling back to mock): {e}")
# Mock implementation fallback
for apt in self.mock_appointments:
if apt["id"] == appointment_id:
apt["appointment_time"] = new_time
return True
return False
def save_summary(self, contact_number: str, summary: str) -> bool:
"""Save the conversation summary."""
if self.client:
try:
data = {
"contact_number": contact_number,
"summary": summary,
"created_at": datetime.now().isoformat()
}
# Assuming a 'conversations' table exists
self.client.table("conversations").insert(data).execute()
return True
except Exception as e:
print(f"Error saving summary in DB (falling back to mock): {e}")
# Mock implementation fallback
print(f"Mock saving summary for {contact_number}: {summary}")
self.mock_summaries.append({
"contact_number": contact_number,
"summary": summary,
"created_at": datetime.now().isoformat()
})
return True
def save_chat_message(self, session_id: str, contact_number: str, role: str, content: str, tool_name: str = None, tool_args: dict = None) -> bool:
"""Save a single chat message to the database"""
if self.client:
try:
data = {
"session_id": session_id,
"contact_number": contact_number,
"role": role,
"content": content,
"tool_name": tool_name,
"tool_args": tool_args,
"created_at": datetime.now().isoformat()
}
self.client.table("chat_messages").insert(data).execute()
return True
except Exception as e:
print(f"Error saving chat message to DB (falling back to mock): {e}")
# Mock fallback
self.mock_chat_messages.append({
"session_id": session_id,
"contact_number": contact_number,
"role": role,
"content": content,
"tool_name": tool_name,
"tool_args": tool_args,
"created_at": datetime.now().isoformat()
})
return True
def save_chat_transcript(self, session_id: str, contact_number: str, messages: list) -> bool:
"""Save entire chat transcript (batch insert)"""
if not messages:
return False
if self.client:
try:
# Prepare batch data
data = []
for msg in messages:
data.append({
"session_id": session_id,
"contact_number": contact_number,
"role": msg.get("role"),
"content": msg.get("content"),
"tool_name": msg.get("tool_name"),
"tool_args": msg.get("tool_args"),
"created_at": datetime.now().isoformat()
})
# Batch insert
self.client.table("chat_messages").insert(data).execute()
print(f"✅ Saved {len(data)} chat messages to database")
return True
except Exception as e:
print(f"Error saving chat transcript to DB (falling back to mock): {e}")
# Mock fallback
for msg in messages:
self.mock_chat_messages.append({
"session_id": session_id,
"contact_number": contact_number,
"role": msg.get("role"),
"content": msg.get("content"),
"tool_name": msg.get("tool_name"),
"tool_args": msg.get("tool_args"),
"created_at": datetime.now().isoformat()
})
print(f"Mock saved {len(messages)} chat messages")
return True
def get_chat_history(self, contact_number: str, limit: int = 100) -> list:
"""Get chat history for a user"""
if self.client:
try:
response = self.client.table("chat_messages")\
.select("*")\
.eq("contact_number", contact_number)\
.order("created_at", desc=True)\
.limit(limit)\
.execute()
return response.data if response.data else []
except Exception as e:
print(f"Error fetching chat history: {e}")
# Mock fallback
return [msg for msg in self.mock_chat_messages if msg["contact_number"] == contact_number][-limit:]
# Hardcoded slots for the 'fetch_slots' requirement
AVAILABLE_SLOTS = [
"2026-01-22T09:00:00",
"2026-01-22T10:00:00",
"2026-01-22T14:00:00",
"2026-01-23T11:00:00",
"2026-01-23T15:00:00"
]
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