from __future__ import annotations
from pydantic import BaseModel, field_validator


class DestinationDetailSchema(BaseModel):
    name: str
    slug: str
    subtitle: str | None = None
    cover_image: str | None = None
    description: str | None = None
    location: str | None = None
    best_season: str | None = None
    duration: str | None = None
    highlights: list = []
    gallery: list = []
    tags: list = []
    is_visible: bool = True

    @field_validator('highlights', 'gallery', 'tags', mode='before')
    @classmethod
    def coerce_none_to_list(cls, v):
        return v if v is not None else []


class DestinationDetailResponse(DestinationDetailSchema):
    id: int
    sort_order: int = 0

    class Config:
        from_attributes = True


class DestinationDetailListResponse(BaseModel):
    items: list[DestinationDetailResponse]
    total: int