import uuid
from datetime import datetime

from pydantic import BaseModel, Field


class NotificationResponse(BaseModel):
    id: uuid.UUID
    user_id: uuid.UUID
    title: str
    body: str
    type: str
    channel: str
    status: str
    scheduled_at: datetime | None
    sent_at: datetime | None
    read_at: datetime | None
    metadata: dict | None = Field(None, alias="metadata_")
    created_at: datetime

    model_config = {"from_attributes": True, "populate_by_name": True}


class NotificationListResponse(BaseModel):
    notifications: list[NotificationResponse]
    unread_count: int


class UnreadCountResponse(BaseModel):
    count: int