from http.server import HTTPServer, BaseHTTPRequestHandler
import os
import json
import random
import mimetypes
import urllib.parse
import sqlite3
import time
import datetime

# Path to the image directory
IMAGE_DIR = "/mnt/secret-items/sd-outputs/Sorted/Images/Portrait"

# Database file path
DB_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)), "image_selections.db")

# Initialize database
def init_db():
    conn = sqlite3.connect(DB_PATH)
    cursor = conn.cursor()
    
    # Create table if it doesn't exist
    cursor.execute('''
    CREATE TABLE IF NOT EXISTS image_selections (
        id INTEGER PRIMARY KEY AUTOINCREMENT,
        image_path TEXT NOT NULL,
        resolution TEXT NOT NULL,
        action TEXT NOT NULL,
        timestamp INTEGER NOT NULL
    )
    ''')
    
    conn.commit()
    conn.close()
    print(f"Database initialized at {DB_PATH}")

# Add a selection to the database
def add_selection(image_path, resolution, action):
    conn = sqlite3.connect(DB_PATH)
    cursor = conn.cursor()
    
    # Insert the selection
    cursor.execute('''
    INSERT INTO image_selections (image_path, resolution, action, timestamp)
    VALUES (?, ?, ?, ?)
    ''', (image_path, resolution, action, int(time.time())))
    
    conn.commit()
    conn.close()
    
# Get all selections from the database
def get_selections():
    print("DEBUG: get_selections() called")
    try:
        conn = sqlite3.connect(DB_PATH)
        conn.row_factory = sqlite3.Row  # This enables column access by name
        cursor = conn.cursor()
        
        cursor.execute('''
        SELECT * FROM image_selections ORDER BY timestamp DESC
        ''')
        
        rows = cursor.fetchall()
        print(f"DEBUG: Fetched {len(rows)} rows from database")
        
        # Properly convert SQLite Row objects to dictionaries
        results = []
        for row in rows:
            item = {}
            for key in row.keys():
                item[key] = row[key]
            results.append(item)
        
        print(f"DEBUG: Converted {len(results)} rows to dictionaries")
        print(f"DEBUG: First result (if any): {results[0] if results else 'None'}")
        
        conn.close()
        return results
    except Exception as e:
        print(f"DEBUG ERROR in get_selections(): {str(e)}")
        # Return empty list on error to prevent client from hanging
        return []

# Update a selection in the database
def update_selection(selection_id, action):
    conn = sqlite3.connect(DB_PATH)
    cursor = conn.cursor()
    
    # Update the selection
    cursor.execute('''
    UPDATE image_selections SET action = ?, timestamp = ? WHERE id = ?
    ''', (action, int(time.time()), selection_id))
    
    # Check if a row was affected
    rows_affected = cursor.rowcount
    
    conn.commit()
    conn.close()
    
    return rows_affected > 0

# Delete a selection from the database
def delete_selection(selection_id):
    conn = sqlite3.connect(DB_PATH)
    cursor = conn.cursor()
    
    # Delete the selection
    cursor.execute('''
    DELETE FROM image_selections WHERE id = ?
    ''', (selection_id,))
    
    # Check if a row was affected
    rows_affected = cursor.rowcount
    
    conn.commit()
    conn.close()
    
    return rows_affected > 0

# Reset the database by deleting all selections
def reset_database():
    print("DEBUG: Resetting database - deleting all selections")
    conn = sqlite3.connect(DB_PATH)
    cursor = conn.cursor()
    
    # Delete all selections
    cursor.execute('''
    DELETE FROM image_selections
    ''')
    
    # Get the number of rows affected
    rows_affected = cursor.rowcount
    
    conn.commit()
    conn.close()
    
    print(f"DEBUG: Reset database - deleted {rows_affected} selections")
    return rows_affected

class ImageSwipeHandler(BaseHTTPRequestHandler):
    # Set response headers for CORS
    def _set_cors_headers(self):
        self.send_header('Access-Control-Allow-Origin', '*')
        self.send_header('Access-Control-Allow-Methods', 'GET, POST, OPTIONS')
        self.send_header('Access-Control-Allow-Headers', 'Content-Type')
    def do_GET(self):
        # Parse the URL path
        parsed_path = urllib.parse.urlparse(self.path)
        path = parsed_path.path
        
        # Serve static files
        if path == "/" or path == "":
            self.serve_file("index.html")
        elif path == "/random-image":
            self.serve_random_image()
        elif path == "/image-resolutions":
            self.serve_resolutions()
        elif path == "/selections":
            self.serve_selections()
        elif path.startswith("/images/"):
            # Extract the image path from the URL
            image_path = path[8:]  # Remove "/images/" prefix
            self.serve_image(image_path)
        else:
            # Serve other static files
            if path.startswith("/"):
                path = path[1:]  # Remove leading slash
            self.serve_file(path)
    
    def serve_file(self, file_path):
        try:
            with open(os.path.join(os.path.dirname(os.path.abspath(__file__)), file_path), 'rb') as file:
                content = file.read()
                
            self.send_response(200)
            
            # Set the content type based on file extension
            content_type, _ = mimetypes.guess_type(file_path)
            if content_type:
                self.send_header('Content-type', content_type)
            else:
                self.send_header('Content-type', 'application/octet-stream')
            
            self._set_cors_headers()    
            self.send_header('Content-length', len(content))
            self.end_headers()
            self.wfile.write(content)
        except FileNotFoundError:
            self.send_error(404, f"File not found: {file_path}")
    
    def serve_image(self, image_path):
        try:
            # Decode URL-encoded path
            image_path = urllib.parse.unquote(image_path)
            full_path = os.path.join(IMAGE_DIR, image_path)
            
            with open(full_path, 'rb') as file:
                content = file.read()
                
            self.send_response(200)
            
            # Set the content type based on file extension
            content_type, _ = mimetypes.guess_type(full_path)
            if content_type:
                self.send_header('Content-type', content_type)
            else:
                self.send_header('Content-type', 'application/octet-stream')
            
            self._set_cors_headers()    
            self.send_header('Content-length', len(content))
            self.end_headers()
            self.wfile.write(content)
        except FileNotFoundError:
            self.send_error(404, f"Image not found: {image_path}")
    
    def serve_random_image(self):
        try:
            # Get all resolution directories
            resolutions = [d for d in os.listdir(IMAGE_DIR) if os.path.isdir(os.path.join(IMAGE_DIR, d))]
            
            # Choose a random resolution
            resolution = random.choice(resolutions)
            resolution_dir = os.path.join(IMAGE_DIR, resolution)
            
            # Get all images in the selected resolution directory
            images = [f for f in os.listdir(resolution_dir) if f.endswith(('.png', '.jpg', '.jpeg'))]
            
            if not images:
                self.send_error(404, "No images found in the selected resolution directory")
                return
                
            # Choose a random image
            image_name = random.choice(images)
            image_path = f"{resolution}/{image_name}"
            full_image_path = os.path.join(IMAGE_DIR, image_path)
            
            # Get the file creation time
            try:
                file_stat = os.stat(full_image_path)
                creation_time = file_stat.st_mtime  # Use modification time as creation time
                creation_date = datetime.datetime.fromtimestamp(creation_time).strftime('%Y-%m-%d %H:%M:%S')
            except Exception as e:
                print(f"DEBUG ERROR getting file creation time: {str(e)}")
                creation_date = "Unknown"
            
            # Return the image path as JSON
            response = {
                'path': f"/images/{image_path}",
                'resolution': resolution,
                'filename': image_name,
                'creation_date': creation_date
            }
            
            self.send_response(200)
            self.send_header('Content-type', 'application/json')
            self._set_cors_headers()
            self.end_headers()
            self.wfile.write(json.dumps(response).encode())
        except Exception as e:
            self.send_error(500, f"Error serving random image: {str(e)}")
    
    def serve_resolutions(self):
        try:
            # Get all resolution directories
            resolutions = [d for d in os.listdir(IMAGE_DIR) if os.path.isdir(os.path.join(IMAGE_DIR, d))]
            
            # Return the resolutions as JSON
            response = {
                'resolutions': resolutions
            }
            
            self.send_response(200)
            self.send_header('Content-type', 'application/json')
            self._set_cors_headers()
            self.end_headers()
            self.wfile.write(json.dumps(response).encode())
        except Exception as e:
            self.send_error(500, f"Error serving resolutions: {str(e)}")
    
    def serve_selections(self):
        print("DEBUG: serve_selections() called")
        try:
            # Get all selections from the database
            selections = get_selections()
            
            # Return the selections as JSON
            response = {
                'selections': selections
            }
            
            # Debug the response before sending
            print(f"DEBUG: Response has {len(selections)} selections")
            
            # Try to serialize to JSON to catch any serialization errors
            try:
                response_json = json.dumps(response)
                print(f"DEBUG: JSON serialization successful, length: {len(response_json)}")
            except Exception as json_err:
                print(f"DEBUG ERROR in JSON serialization: {str(json_err)}")
                # If there's an error in serialization, send a simpler response
                response = {'selections': [], 'error': 'JSON serialization error'}
                response_json = json.dumps(response)
            
            self.send_response(200)
            self.send_header('Content-type', 'application/json')
            self._set_cors_headers()
            self.end_headers()
            self.wfile.write(response_json.encode())
            print("DEBUG: Response sent successfully")
        except Exception as e:
            print(f"DEBUG ERROR in serve_selections(): {str(e)}")
            self.send_error(500, f"Error serving selections: {str(e)}")

    def do_POST(self):
        # Parse the URL path
        parsed_path = urllib.parse.urlparse(self.path)
        path = parsed_path.path
        
        if path == "/record-selection":
            self.handle_record_selection()
        elif path == "/update-selection":
            self.handle_update_selection()
        elif path == "/delete-selection":
            self.handle_delete_selection()
        elif path == "/reset-database":
            self.handle_reset_database()
        else:
            self.send_error(404, "Not found")
    
    def handle_record_selection(self):
        try:
            # Get the content length
            content_length = int(self.headers['Content-Length'])
            
            # Read the request body
            post_data = self.rfile.read(content_length).decode('utf-8')
            data = json.loads(post_data)
            
            # Extract the required fields
            image_path = data.get('path', '').replace('/images/', '')
            resolution = data.get('resolution', '')
            action = data.get('action', '')
            
            # Validate the data
            if not image_path or not resolution or not action:
                self.send_error(400, "Missing required fields")
                return
            
            # Add the selection to the database
            add_selection(image_path, resolution, action)
            
            # Return success response
            response = {
                'success': True,
                'message': f"Selection recorded: {action} for {image_path}"
            }
            
            self.send_response(200)
            self.send_header('Content-type', 'application/json')
            self._set_cors_headers()
            self.end_headers()
            self.wfile.write(json.dumps(response).encode())
        except Exception as e:
            self.send_error(500, f"Error recording selection: {str(e)}")
    
    def handle_update_selection(self):
        try:
            # Get the content length
            content_length = int(self.headers['Content-Length'])
            
            # Read the request body
            post_data = self.rfile.read(content_length).decode('utf-8')
            data = json.loads(post_data)
            
            # Extract the required fields
            selection_id = data.get('id')
            action = data.get('action', '')
            
            # Validate the data
            if not selection_id or not action:
                self.send_error(400, "Missing required fields")
                return
            
            # Update the selection in the database
            success = update_selection(selection_id, action)
            
            if not success:
                self.send_error(404, f"Selection with ID {selection_id} not found")
                return
            
            # Return success response
            response = {
                'success': True,
                'message': f"Selection updated: ID {selection_id} to {action}"
            }
            
            self.send_response(200)
            self.send_header('Content-type', 'application/json')
            self._set_cors_headers()
            self.end_headers()
            self.wfile.write(json.dumps(response).encode())
        except Exception as e:
            self.send_error(500, f"Error updating selection: {str(e)}")
    
    def handle_delete_selection(self):
        try:
            # Get the content length
            content_length = int(self.headers['Content-Length'])
            
            # Read the request body
            post_data = self.rfile.read(content_length).decode('utf-8')
            data = json.loads(post_data)
            
            # Extract the required fields
            selection_id = data.get('id')
            
            # Validate the data
            if not selection_id:
                self.send_error(400, "Missing selection ID")
                return
            
            # Delete the selection from the database
            success = delete_selection(selection_id)
            
            if not success:
                self.send_error(404, f"Selection with ID {selection_id} not found")
                return
            
            # Return success response
            response = {
                'success': True,
                'message': f"Selection deleted: ID {selection_id}"
            }
            
            self.send_response(200)
            self.send_header('Content-type', 'application/json')
            self._set_cors_headers()
            self.end_headers()
            self.wfile.write(json.dumps(response).encode())
        except Exception as e:
            print(f"DEBUG ERROR in handle_delete_selection(): {str(e)}")
            self.send_error(500, f"Error deleting selection: {str(e)}")
    
    def handle_reset_database(self):
        try:
            print("DEBUG: Handling reset database request")
            # Reset the database
            rows_affected = reset_database()
            
            # Return success response
            response = {
                'success': True,
                'message': f"Database reset: {rows_affected} selections deleted"
            }
            
            self.send_response(200)
            self.send_header('Content-type', 'application/json')
            self._set_cors_headers()
            self.end_headers()
            self.wfile.write(json.dumps(response).encode())
            print("DEBUG: Reset database response sent")
        except Exception as e:
            print(f"DEBUG ERROR in handle_reset_database(): {str(e)}")
            self.send_error(500, f"Error resetting database: {str(e)}")
    
    def do_OPTIONS(self):
        # Handle preflight requests for CORS
        self.send_response(200)
        self._set_cors_headers()
        self.end_headers()

def run(server_class=HTTPServer, handler_class=ImageSwipeHandler, port=8000):
    # Initialize the database
    init_db()
    
    server_address = ('', port)
    httpd = server_class(server_address, handler_class)
    print(f"Starting server on port {port}...")
    print(f"Image directory: {IMAGE_DIR}")
    print(f"Database: {DB_PATH}")
    httpd.serve_forever()

if __name__ == "__main__":
    run()