from typing import Any, Generic, TypeVar

from pydantic import BaseModel, Field

T = TypeVar("T")


class APIResponse(BaseModel, Generic[T]):
    success: bool = True
    message: str = ""
    data: T | None = None


class ErrorResponse(BaseModel):
    success: bool = False
    message: str
    errors: list[str] = Field(default_factory=list)


class Page(BaseModel, Generic[T]):
    items: list[T]
    page: int
    size: int
    total: int
    pages: int


class PaginationParams(BaseModel):
    page: int = Field(default=1, ge=1)
    size: int = Field(default=20, ge=1, le=100)


class IdResponse(BaseModel):
    id: str


class MessageOnly(BaseModel):
    message: str
    data: dict[str, Any] = Field(default_factory=dict)