from pydantic import BaseModel
from pydantic.functional_validators import field_validator
from pydantic import ConfigDict
from typing import Dict, Any, Optional, Union


class RuleField(BaseModel):
    """
    规则字段模型，用于验证单个规则字段
    """
    min: Union[int, float] = 0
    max: Union[int, float] = 0

    # @validator('max')
    # def validate_min_max(cls, v, values, field):
    #     if 'min' in values and v != 0 and values['min'] > v:
    #         raise ValueError('min value cannot be greater than max value')
    #     return v


class RuleModel(BaseModel):
    """
    规则模型，用于验证规则字典
    """
    period: Optional[RuleField] = None
    duration: Optional[RuleField] = None
    play_cnt: Optional[RuleField] = None
    like_cnt: Optional[RuleField] = None
    comment_cnt: Optional[RuleField] = None
    share_cnt: Optional[RuleField] = None
    videos_cnt: Optional[RuleField] = None
    width: Optional[RuleField] = None
    height: Optional[RuleField] = None

    @field_validator('*')
    def validate_rule_fields(cls, v):
        if v is not None and not isinstance(v, RuleField):
            raise ValueError('Rule fields must be of type RuleField')
        return v

    model_config = ConfigDict(extra='allow')  # 使用V2兼容的方式允许额外字段