from pydantic import BaseModel, field_validator
from datetime import date
from dateutil import parser

class DataValid(BaseModel):
    id: int
    organ: str
    names: str
    date_from: date
    date_to: date | None
    ver: str

   # Дополнительный конструктор для списка
    @classmethod
    def from_list(cls, data_list: list):
        return cls(
            id=data_list[0],
            organ=data_list[1],
            names=data_list[2],
            date_from=data_list[3],
            date_to=data_list[4],
            ver=data_list[5]
            )

    @field_validator('date_from', mode='before')
    def parse_date_to(cls, date): 
        if isinstance(date, str):
            try:
                return parser.parse(date)
            except (ValueError, TypeError): return date
        return date
    
    @field_validator('date_to', mode='before')
    def parse_date_from(date):
        if isinstance(date, str):
            try:
                return parser.parse(date)
            except(ValueError, TypeError): return date
        return date