"""Server records operations."""


from database_service import database_connection, dict_from_row
import json
from runtime_config import (
    logger,
)
from typing import Dict, List, Optional, Tuple
from user_service import get_user_by_id
import uuid

__all__ = ['create_server_record', 'delete_server_record', 'get_all_servers', 'get_server_access_and_namespace', 'get_server_by_id', 'get_user_servers', 'update_server_status']



def create_server_record(server_data: Dict) -> Optional[Dict]:
    """Create server record"""
    try:
        with database_connection() as conn:
            cursor = conn.cursor()
            is_demo = server_data.get('is_demo', False)
            demo_expires_at = server_data.get('demo_expires_at')

            cursor.execute('''
                INSERT INTO servers (id, name, type, image, version, status, cpu, ram, storage, ip, ports, owner_id, namespace, k8s_name, is_demo, demo_expires_at, java_version, loader, sftp_username, sftp_password, sftp_port)
                VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
            ''', (
                server_data['id'],
                server_data['name'],
                server_data['type'],
                server_data['image'],
                server_data['version'],
                server_data.get('status', 'Creating'),
                server_data['cpu'],
                server_data['ram'],
                server_data['storage'],
                server_data['ip'],
                json.dumps(server_data['ports']),
                server_data['ownerId'],  # This should match the key in server_data
                server_data.get('namespace', f"user-{server_data['ownerId']}".lower()),
                server_data.get('k8s_name', server_data['id']),
                is_demo,
                demo_expires_at,
                server_data.get('java_version'),
                server_data.get('loader'),
                server_data.get('sftp_username'),
                server_data.get('sftp_password'),
                server_data.get('sftp_port')
            ))
            conn.commit()

            # Return the server with owner_id field
            cursor.execute('SELECT * FROM servers WHERE id = ?', (server_data['id'],))
            server = dict_from_row(cursor.fetchone())
            if server and 'ports' in server:
                server['ports'] = json.loads(server['ports'])

            return server
    except Exception as e:
        logger.error(f"Error creating server record: {e}")
        return None

def get_server_by_id(server_id: str) -> Optional[Dict]:
    """Get server by ID"""
    try:
        # Ensure server_id is a string
        server_id = str(server_id)
        with database_connection() as conn:
            cursor = conn.cursor()
            cursor.execute('SELECT * FROM servers WHERE id = ?', (server_id,))
            server = dict_from_row(cursor.fetchone())
            if server and 'ports' in server:
                server['ports'] = json.loads(server['ports'])

            # Add backward compatibility for ownerId field
            if server and 'owner_id' in server:
                server['ownerId'] = server['owner_id']

            return server
    except Exception as e:
        return None

def get_server_access_and_namespace(server_id: str, requester_id: str) -> Tuple[str, Dict]:
    """
    Check if a user has access to a server and return the namespace and server record.
    Access is granted if user is the owner OR an admin.
    Returns (namespace, server_record)
    """
    server = get_server_by_id(server_id)
    if not server:
        raise Exception("Server not found")

    requester = get_user_by_id(requester_id)
    if not requester:
        raise Exception("User not found")

    # Check access (ensure string comparison for IDs)
    # Handle both 'owner_id' and 'ownerId' keys for compatibility
    server_owner_id = str(server.get('owner_id') or server.get('ownerId', ''))
    req_id = str(requester_id)

    is_owner = server_owner_id == req_id
    is_admin = requester.get('role') == 'admin'

    if not is_owner and not is_admin:
        logger.warning(f"Access denied for user {requester_id} to server {server_id}. Owner: {server_owner_id}, Role: {requester.get('role')}")
        raise Exception("Access denied")

    # Get owner to determine namespace
    if is_owner:
        owner = requester
    else:
        owner = get_user_by_id(server_owner_id)

    if not owner:
        raise Exception("Server owner not found")

    namespace = f"user-{owner['username']}".lower()
    return namespace, server

def get_user_servers(user_id: str) -> List[Dict]:
    """Get all servers for a user"""
    try:
        with database_connection() as conn:
            cursor = conn.cursor()
            cursor.execute('SELECT * FROM servers WHERE owner_id = ? ORDER BY created_at DESC', (user_id,))
            servers = [dict_from_row(row) for row in cursor.fetchall()]

            for server in servers:
                if server and 'ports' in server:
                    server['ports'] = json.loads(server['ports'])

                # Get database configuration for database servers
                if server and server['type'] == 'database':
                    cursor.execute('SELECT * FROM database_configs WHERE server_id = ?', (server['id'],))
                    db_config = dict_from_row(cursor.fetchone())
                    if db_config:
                        server['databaseConfig'] = db_config

            return servers
    except Exception as e:
        return []

def get_all_servers() -> List[Dict]:
    """Get all servers (admin only)"""
    try:
        with database_connection() as conn:
            cursor = conn.cursor()
            cursor.execute('SELECT * FROM servers ORDER BY created_at DESC')
            servers = [dict_from_row(row) for row in cursor.fetchall()]

            for server in servers:
                if server and 'ports' in server:
                    try:
                        if isinstance(server['ports'], str):
                            server['ports'] = json.loads(server['ports'])
                    except:
                        server['ports'] = []

                # Get database configuration for database servers
                if server and server['type'] == 'database':
                    cursor.execute('SELECT * FROM database_configs WHERE server_id = ?', (server['id'],))
                    db_config = dict_from_row(cursor.fetchone())
                    if db_config:
                        server['databaseConfig'] = db_config

            return servers
    except Exception as e:
        logger.error(f"Error getting all servers: {e}")
        return []

def update_server_status(server_id: str, status: str, message: str = "") -> bool:
    """Update server status"""
    try:
        with database_connection() as conn:
            cursor = conn.cursor()

            cursor.execute(
                'UPDATE servers SET status = ?, updated_at = CURRENT_TIMESTAMP WHERE id = ?',
                (status, server_id)
            )

            status_id = f"status-{str(uuid.uuid4())[:8]}"
            cursor.execute('''
                INSERT INTO server_status_history (id, server_id, status, message)
                VALUES (?, ?, ?, ?)
            ''', (status_id, server_id, status, message))

            conn.commit()
            return cursor.rowcount > 0
    except Exception as e:
        return False

def delete_server_record(server_id: str) -> bool:
    """Delete server record"""
    try:
        with database_connection() as conn:
            cursor = conn.cursor()
            # Delete database configuration first
            cursor.execute('DELETE FROM database_configs WHERE server_id = ?', (server_id,))
            # Then delete server
            cursor.execute('DELETE FROM servers WHERE id = ?', (server_id,))
            conn.commit()
            return cursor.rowcount > 0
    except Exception as e:
        return False