"""仅接受用户可编辑字段；租户、上传人和存储对象由服务端生成。"""
from typing import List

from pydantic import BaseModel, ConfigDict, Field, field_validator


class _Body(BaseModel):
    model_config = ConfigDict(extra='forbid')


class FolderUpdateBody(_Body):
    name: str = Field(min_length=1, max_length=120)

    @field_validator('name')
    @classmethod
    def valid_name(cls, value):
        value = value.strip()
        if not value or value in ('.', '..') or any(ord(c) < 32 or c in '/\\' for c in value):
            raise ValueError('文件夹名称不能为空或包含路径分隔符/控制字符')
        return value


class FolderCreateBody(FolderUpdateBody):
    parentId: str = Field(default='', max_length=64)


class ShareBody(_Body):
    userIds: List[str] = Field(max_length=500)


class DeleteFilesBody(_Body):
    ids: List[str] = Field(min_length=1, max_length=100)