"""
Middleware package for SaaS robustness

This package provides:
- Rate limiting: Protect against abuse and ensure fair usage
- Validation: Validate all inputs before processing
- Security: Security headers, request logging, error handling
- Cleanup: Automatic file cleanup and resource management
"""

from .rate_limiting import (
    RateLimitConfig,
    RateLimitManager,
    RateLimitMiddleware,
    ClientRateLimiter,
)

from .validation import (
    ValidationError,
    ValidationResult,
    FileValidator,
    LanguageValidator,
    ProviderValidator,
    InputSanitizer,
)

from .security import (
    SecurityHeadersMiddleware,
    RequestLoggingMiddleware,
)

from .error_handler import (
    ErrorHandlingMiddleware,
)

from .cleanup import (
    FileCleanupManager,
    MemoryMonitor,
    HealthChecker,
    create_cleanup_manager,
)

from .api_key_auth import (
    APIKeyError,
    get_user_from_api_key,
    get_authenticated_user,
    get_authenticated_user_optional,
    get_current_user_optional,
    require_authenticated_user,
    require_api_key,
)

__all__ = [
    # API Key Authentication
    "APIKeyError",
    "get_user_from_api_key",
    "get_authenticated_user",
    "get_authenticated_user_optional",
    "get_current_user_optional",
    "require_authenticated_user",
    "require_api_key",
    # Rate limiting
    "RateLimitConfig",
    "RateLimitManager",
    "RateLimitMiddleware",
    "ClientRateLimiter",
    # Validation
    "ValidationError",
    "ValidationResult",
    "FileValidator",
    "LanguageValidator",
    "ProviderValidator",
    "InputSanitizer",
    # Security
    "SecurityHeadersMiddleware",
    "RequestLoggingMiddleware",
    "ErrorHandlingMiddleware",
    # Cleanup
    "FileCleanupManager",
    "MemoryMonitor",
    "HealthChecker",
    "create_cleanup_manager",
]