# app/modules/contracts/__init__.py
"""
Cross-module contracts using Protocol pattern.

This module defines type-safe interfaces for cross-module communication.
Modules depend on protocols rather than concrete implementations, enabling:
- Loose coupling between modules
- Testability through mock implementations
- Clear dependency boundaries

Usage:
    from app.modules.contracts.cms import ContentServiceProtocol

    class OrderService:
        def __init__(self, content: ContentServiceProtocol | None = None):
            self._content = content

        @property
        def content(self) -> ContentServiceProtocol:
            if self._content is None:
                from app.modules.cms.services import content_page_service
                self._content = content_page_service
            return self._content
"""

from app.modules.contracts.base import ServiceProtocol
from app.modules.contracts.cms import ContentServiceProtocol

__all__ = [
    "ServiceProtocol",
    "ContentServiceProtocol",
]