"""
共用 Schemas
"""
from typing import Generic, TypeVar, Optional, List
from pydantic import BaseModel

T = TypeVar("T")


class ErrorDetail(BaseModel):
    """錯誤詳情"""

    code: str
    message: str
    details: Optional[dict] = None


class ErrorResponse(BaseModel):
    """錯誤回應"""

    error: ErrorDetail


class PaginatedResponse(BaseModel, Generic[T]):
    """分頁回應"""

    items: List[T]
    total: int
    page: int
    page_size: int
    pages: int


class MessageResponse(BaseModel):
    """訊息回應"""

    message: str