Extension Management

class MEExtensionManager:
    def reloadContentBlockerWithIdentifier_completionHandler_(
        self,
        identifier: str,  # Content blocker identifier
        completionHandler  # Completion handler: (NSError or None) -> None
    ):
        """
        Reload a content blocker with the specified identifier.
        
        Args:
            identifier: The unique identifier of the content blocker to reload
            completionHandler: Completion handler called when reload completes,
                             receives an NSError if the operation failed, None on success
        """
    
    def reloadVisibleMessagesWithCompletionHandler_(
        self,
        completionHandler  # Completion handler: (NSError or None) -> None
    ):
        """
        Reload all visible messages in the Mail application.
        
        Args:
            completionHandler: Completion handler called when reload completes,
                             receives an NSError if the operation failed, None on success
        """

class MEExtensionViewController:
    """
    Base view controller for Mail extensions.
    
    This class provides the foundation for creating custom view controllers
    that integrate with the Mail application interface.
    
    Note: This class cannot be instantiated directly using init() or new().
    Subclass this class to create custom extension view controllers.
    """

import MailKit

# Reload a specific content blocker
def reload_content_blocker(extension_manager, blocker_id):
    """Reload a content blocker and handle the result."""
    
    def completion_handler(error):
        if error is None:
            print(f"Successfully reloaded content blocker: {blocker_id}")
        else:
            print(f"Failed to reload content blocker {blocker_id}: {error}")
    
    extension_manager.reloadContentBlockerWithIdentifier_completionHandler_(
        identifier=blocker_id,
        completionHandler=completion_handler
    )

# Example usage
# extension_manager would be provided by the Mail framework
# reload_content_blocker(extension_manager, "com.example.mailblocker")

import MailKit

# Reload all visible messages
def reload_visible_messages(extension_manager):
    """Reload all visible messages and handle the result."""
    
    def completion_handler(error):
        if error is None:
            print("Successfully reloaded visible messages")
        else:
            print(f"Failed to reload visible messages: {error}")
    
    extension_manager.reloadVisibleMessagesWithCompletionHandler_(
        completionHandler=completion_handler
    )

# Example usage  
# extension_manager would be provided by the Mail framework
# reload_visible_messages(extension_manager)

import MailKit

class MailExtensionManager:
    """Utility class for managing Mail extension operations."""
    
    def __init__(self, extension_manager):
        """
        Initialize with a MEExtensionManager instance.
        
        Args:
            extension_manager: MEExtensionManager instance from the Mail framework
        """
        self.extension_manager = extension_manager
        self.reload_callbacks = {}
    
    def reload_content_blocker_async(self, blocker_id, callback=None):
        """
        Asynchronously reload a content blocker.
        
        Args:
            blocker_id: Identifier of the content blocker
            callback: Optional callback function to call on completion
        """
        def completion_handler(error):
            success = error is None
            if callback:
                callback(blocker_id, success, error)
            
            # Store result for later retrieval
            self.reload_callbacks[blocker_id] = {
                "success": success,
                "error": error,
                "timestamp": __import__("time").time()
            }
        
        self.extension_manager.reloadContentBlockerWithIdentifier_completionHandler_(
            identifier=blocker_id,
            completionHandler=completion_handler
        )
    
    def reload_visible_messages_async(self, callback=None):
        """
        Asynchronously reload visible messages.
        
        Args:
            callback: Optional callback function to call on completion
        """
        def completion_handler(error):
            success = error is None
            if callback:
                callback(success, error)
        
        self.extension_manager.reloadVisibleMessagesWithCompletionHandler_(
            completionHandler=completion_handler
        )
    
    def get_last_reload_result(self, blocker_id):
        """
        Get the result of the last reload operation for a content blocker.
        
        Args:
            blocker_id: Identifier of the content blocker
            
        Returns:
            dict: Result information or None if no reload has been performed
        """
        return self.reload_callbacks.get(blocker_id)

# Example usage
# manager = MailExtensionManager(extension_manager_instance)
# 
# def reload_callback(blocker_id, success, error):
#     if success:
#         print(f"Content blocker {blocker_id} reloaded successfully")
#     else:
#         print(f"Failed to reload content blocker {blocker_id}: {error}")
# 
# manager.reload_content_blocker_async("com.example.blocker", reload_callback)

import MailKit

class BatchExtensionManager:
    """Manager for batch extension operations."""
    
    def __init__(self, extension_manager):
        self.extension_manager = extension_manager
        self.pending_operations = {}
    
    def reload_multiple_content_blockers(self, blocker_ids, completion_callback=None):
        """
        Reload multiple content blockers and track completion.
        
        Args:
            blocker_ids: List of content blocker identifiers
            completion_callback: Called when all operations complete
        """
        batch_id = f"batch_{__import__('time').time()}"
        self.pending_operations[batch_id] = {
            "total": len(blocker_ids),
            "completed": 0,
            "results": {},
            "callback": completion_callback
        }
        
        def individual_completion(blocker_id, error):
            batch_info = self.pending_operations[batch_id]
            batch_info["completed"] += 1
            batch_info["results"][blocker_id] = {
                "success": error is None,
                "error": error
            }
            
            # Check if batch is complete
            if batch_info["completed"] == batch_info["total"]:
                if batch_info["callback"]:
                    batch_info["callback"](batch_id, batch_info["results"])
                # Clean up
                del self.pending_operations[batch_id]
        
        # Start all reload operations
        for blocker_id in blocker_ids:
            self.extension_manager.reloadContentBlockerWithIdentifier_completionHandler_(
                identifier=blocker_id,
                completionHandler=lambda error, bid=blocker_id: individual_completion(bid, error)
            )
        
        return batch_id
    
    def get_batch_status(self, batch_id):
        """
        Get the status of a batch operation.
        
        Args:
            batch_id: Batch operation identifier
            
        Returns:
            dict: Batch status information or None if not found
        """
        return self.pending_operations.get(batch_id)

# Example usage
# batch_manager = BatchExtensionManager(extension_manager_instance)
# 
# def batch_completion(batch_id, results):
#     print(f"Batch {batch_id} completed:")
#     for blocker_id, result in results.items():
#         status = "SUCCESS" if result["success"] else "FAILED"
#         print(f"  {blocker_id}: {status}")
# 
# blocker_list = ["com.example.blocker1", "com.example.blocker2", "com.example.blocker3"]
# batch_id = batch_manager.reload_multiple_content_blockers(blocker_list, batch_completion)

import MailKit
import time

class RobustExtensionManager:
    """Extension manager with retry logic and error handling."""
    
    def __init__(self, extension_manager, max_retries=3, retry_delay=1.0):
        self.extension_manager = extension_manager
        self.max_retries = max_retries
        self.retry_delay = retry_delay
        self.retry_attempts = {}
    
    def reload_content_blocker_with_retry(self, blocker_id, final_callback=None):
        """
        Reload content blocker with automatic retry on failure.
        
        Args:
            blocker_id: Content blocker identifier
            final_callback: Callback called after all retries exhausted
        """
        attempt_key = f"{blocker_id}_{time.time()}"
        self.retry_attempts[attempt_key] = 0
        
        def attempt_reload():
            attempt_count = self.retry_attempts[attempt_key]
            
            def completion_handler(error):
                if error is None:
                    # Success - clean up and notify
                    if attempt_key in self.retry_attempts:
                        del self.retry_attempts[attempt_key]
                    if final_callback:
                        final_callback(blocker_id, True, None, attempt_count + 1)
                else:
                    # Failure - check if we should retry
                    self.retry_attempts[attempt_key] += 1
                    current_attempt = self.retry_attempts[attempt_key]
                    
                    if current_attempt < self.max_retries:
                        print(f"Retrying content blocker reload {blocker_id} (attempt {current_attempt + 1}/{self.max_retries})")
                        # Schedule retry after delay
                        __import__("threading").Timer(self.retry_delay, attempt_reload).start()
                    else:
                        # All retries exhausted
                        if attempt_key in self.retry_attempts:
                            del self.retry_attempts[attempt_key]
                        if final_callback:
                            final_callback(blocker_id, False, error, current_attempt)
            
            self.extension_manager.reloadContentBlockerWithIdentifier_completionHandler_(
                identifier=blocker_id,
                completionHandler=completion_handler
            )
        
        # Start first attempt
        attempt_reload()

# Example usage
# robust_manager = RobustExtensionManager(extension_manager_instance, max_retries=3, retry_delay=2.0)
# 
# def final_callback(blocker_id, success, error, attempts):
#     if success:
#         print(f"Content blocker {blocker_id} reloaded successfully after {attempts} attempts")
#     else:
#         print(f"Failed to reload content blocker {blocker_id} after {attempts} attempts: {error}")
# 
# robust_manager.reload_content_blocker_with_retry("com.example.blocker", final_callback)