"""Platform capability contracts — interfaces only; no implementations in Loyalty."""
from __future__ import annotations

from typing import Any, Protocol
from uuid import UUID


class NotificationProvider(Protocol):
    """Contract for Notification service. Loyalty must not own delivery."""

    async def notify(
        self,
        *,
        tenant_id: UUID,
        channel: str,
        template_key: str,
        payload: dict[str, Any],
    ) -> None: ...


class AnalyticsProvider(Protocol):
    """Contract for Analytics. Loyalty analytics engine arrives in Phase 7.8."""

    async def track(
        self, *, tenant_id: UUID, event_name: str, properties: dict[str, Any]
    ) -> None: ...


class Customer360Provider(Protocol):
    """Contract for Customer360. Loyalty stores external_customer_ref only."""

    async def upsert_party_reference(
        self, *, tenant_id: UUID, source: str, source_id: UUID, payload: dict[str, Any]
    ) -> None: ...


class AIProvider(Protocol):
    """Contract for AI Platform. Loyalty must not own model inference."""

    async def suggest(
        self, *, tenant_id: UUID, task: str, context: dict[str, Any]
    ) -> dict[str, Any]: ...


class ModuleIntegrationProvider(Protocol):
    """Contract for business modules (Restaurant, Marketplace, Ecommerce, …)."""

    async def resolve_source_event(
        self, *, tenant_id: UUID, module_key: str, event_ref: str
    ) -> dict[str, Any]: ...


class CRMProvider(Protocol):
    """Contract for CRM references. Loyalty does not own CRM entities."""

    async def resolve_contact(
        self, *, tenant_id: UUID, contact_ref: str
    ) -> dict[str, Any]: ...


class CommunicationProvider(Protocol):
    """Contract for Communication Platform. Loyalty must not own delivery."""

    async def send(
        self,
        *,
        tenant_id: UUID,
        channel: str,
        to: str,
        template_key: str,
        payload: dict[str, Any],
    ) -> None: ...


class FileStorageProvider(Protocol):
    """Contract for File Storage. Loyalty stores references only."""

    async def resolve_file(
        self, *, tenant_id: UUID, file_storage_id: str
    ) -> dict[str, Any]: ...