import json
import logging
from datetime import datetime
from uuid import uuid4
import requests
from pathlib import Path
from datasets import load_dataset, Dataset
import os
from huggingface_hub import CommitScheduler, HfApi
import random

class ChatLogger:
    def __init__(self, scheduler):
        """Initialize the chat logger with paths and configurations"""
        if not scheduler:
            raise ValueError("Scheduler is required")
            
        self.scheduler = scheduler
        self.json_dataset_dir = scheduler.folder_path
        self.logs_path = self.json_dataset_dir / f"logs-{uuid4()}.jsonl"

    def get_client_ip(self, request=None):
        """Get the client IP address from the request context"""
        try:
            if request:
                # Try different headers that might contain the real IP
                ip = request.client.host
                # Check for proxy headers
                forwarded_for = request.headers.get('X-Forwarded-For')
                if forwarded_for:
                    # X-Forwarded-For can contain multiple IPs - first one is the client
                    ip = forwarded_for.split(',')[0].strip()
                
                logging.debug(f"Client IP detected: {ip}")
                return ip
        except Exception as e:
            logging.error(f"Error getting client IP: {e}")
        return "127.0.0.1"

    def get_client_location(self, ip_address):
        """Get geolocation info using ipapi.co"""
        headers = {
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
        }
        try:
            response = requests.get(
                f'https://ipapi.co/{ip_address}/json/',
                headers=headers,
                timeout=5
            )
            if response.status_code == 200:
                data = response.json()
                # Add random noise between -0.01 and 0.01 degrees (roughly ±1km)
                lat = data.get('latitude')
                lon = data.get('longitude')
                if lat is not None and lon is not None:
                    lat += random.uniform(-0.01, 0.01)
                    lon += random.uniform(-0.01, 0.01)
                
                return {
                    'city': data.get('city'),
                    'region': data.get('region'),
                    'country': data.get('country_name'),
                    'latitude': lat,
                    'longitude': lon
                }
            elif response.status_code == 429:
                logging.warning(f"Rate limit exceeded for IP lookup")
                return None
            else:
                logging.error(f"Error in IP lookup: Status code {response.status_code}")
                return None
                
        except requests.exceptions.RequestException as e:
            logging.error(f"Request failed in IP lookup: {str(e)}")
            return None

    def create_log_entry(self, query, answer, retrieved_content, feedback=None, request=None):
        """Create a structured log entry with all required fields"""
        timestamp = datetime.now().timestamp()
        
        # Get client location if request is provided
        ip = self.get_client_ip(request) if request else None
        location = self.get_client_location(ip) if ip else None
        
        log_entry = {
            "record_id": str(uuid4()),
            "session_id": str(uuid4()),  # In practice, this should be passed in from the session
            "time": str(timestamp),
            "client_location": location,
            "question": query,
            "answer": answer,
            "retrieved_content": retrieved_content if isinstance(retrieved_content, list) else [retrieved_content],
            "feedback": feedback
        }
        
        return log_entry

    def cleanup_local_files(self):
        """Delete local JSON files after successful upload"""
        try:
            # List all files in json_dataset directory
            for file in self.json_dataset_dir.glob("*.json*"):
                try:
                    file.unlink()  # Delete file
                    logging.info(f"Deleted local file: {file}")
                except Exception as e:
                    logging.error(f"Error deleting file {file}: {e}")
            
            # Optionally remove the directory if empty
            if not any(self.json_dataset_dir.iterdir()):
                self.json_dataset_dir.rmdir()
                logging.info("Removed empty json_dataset directory")
        except Exception as e:
            logging.error(f"Error in cleanup: {e}")

    def save_local(self, log_entry):
        """Save log entry to local JSONL file"""
        try:
            # Reorder fields for consistency
            field_order = [
                "record_id",
                "session_id",
                "time",
                "client_location",
                "question",
                "answer",
                "retrieved_content",
                "feedback"
            ]
            ordered_logs = {k: log_entry.get(k) for k in field_order if k in log_entry}
            
            with self.scheduler.lock:
                with open(self.logs_path, 'a') as f:
                    json.dump(ordered_logs, f)
                    f.write('\n')
                    logging.info("Log entry saved")
                
                # After successful write, trigger cleanup
                self.cleanup_local_files()
            return True
        except Exception as e:
            logging.error(f"Error saving to local file: {str(e)}")
            return False

    def log(self, query, answer, retrieved_content, feedback=None, request=None):
        """Main logging method that handles both local and HF storage"""
        # Create log entry
        log_entry = self.create_log_entry(
            query=query,
            answer=answer,
            retrieved_content=retrieved_content,
            feedback=feedback,
            request=request
        )
        
        # Save locally with thread safety
        return self.save_local(log_entry)