# app/modules/messaging/services/messaging_features.py
"""
Messaging feature provider for the billing feature system.

Declares messaging-related billable features (basic messaging, email templates,
bulk messaging) for feature gating.
"""

from __future__ import annotations

import logging
from typing import TYPE_CHECKING

from app.modules.contracts.features import (
    FeatureDeclaration,
    FeatureScope,
    FeatureType,
    FeatureUsage,
)

if TYPE_CHECKING:
    from sqlalchemy.orm import Session

logger = logging.getLogger(__name__)


class MessagingFeatureProvider:
    """Feature provider for the messaging module.

    Declares:
    - messaging_basic: binary merchant-level feature for basic messaging
    - email_templates: binary merchant-level feature for custom email templates
    - bulk_messaging: binary merchant-level feature for bulk messaging
    """

    @property
    def feature_category(self) -> str:
        return "messaging"

    def get_feature_declarations(self) -> list[FeatureDeclaration]:
        return [
            FeatureDeclaration(
                code="messaging_basic",
                name_key="messaging.features.messaging_basic.name",
                description_key="messaging.features.messaging_basic.description",
                category="messaging",
                feature_type=FeatureType.BINARY,
                scope=FeatureScope.MERCHANT,
                ui_icon="mail",
                display_order=10,
            ),
            FeatureDeclaration(
                code="email_templates",
                name_key="messaging.features.email_templates.name",
                description_key="messaging.features.email_templates.description",
                category="messaging",
                feature_type=FeatureType.BINARY,
                scope=FeatureScope.MERCHANT,
                ui_icon="file-text",
                display_order=20,
            ),
            FeatureDeclaration(
                code="bulk_messaging",
                name_key="messaging.features.bulk_messaging.name",
                description_key="messaging.features.bulk_messaging.description",
                category="messaging",
                feature_type=FeatureType.BINARY,
                scope=FeatureScope.MERCHANT,
                ui_icon="send",
                display_order=30,
            ),
        ]

    def get_store_usage(
        self,
        db: Session,
        store_id: int,
    ) -> list[FeatureUsage]:
        return []

    def get_merchant_usage(
        self,
        db: Session,
        merchant_id: int,
        platform_id: int,
    ) -> list[FeatureUsage]:
        return []


# Singleton instance for module registration
messaging_feature_provider = MessagingFeatureProvider()

__all__ = [
    "MessagingFeatureProvider",
    "messaging_feature_provider",
]
