from typing import Optional, List
from pydantic import BaseModel, Field
from datetime import datetime

# Shared properties
class PeakBase(BaseModel):
    name_en: str
    name_cn: Optional[str] = None
    elevation_m: int
    prominence_m: Optional[int] = None
    first_ascent_year: Optional[int] = None
    description: Optional[str] = None
    thumbnail_url: Optional[str] = None

# Properties to receive on item creation
class PeakCreate(PeakBase):
    # GeoJSON Point: {"type": "Point", "coordinates": [lon, lat]}
    location: dict 

# Properties to receive on item update
class PeakUpdate(PeakBase):
    location: Optional[dict] = None

# Properties shared by models stored in DB
class PeakInDBBase(PeakBase):
    id: int
    location: Optional[dict] = None # We will convert WKB to GeoJSON in crud
    created_at: datetime
    updated_at: datetime

    class Config:
        from_attributes = True

# Properties to return to client
class Peak(PeakInDBBase):
    pass