from pydantic import BaseModel
from typing import Optional, List
from datetime import datetime
from .song import SongResponse

class PlaylistBase(BaseModel):
    name: str
    description: Optional[str] = ""

class PlaylistCreate(PlaylistBase):
    mood_category: Optional[str] = None
    song_ids: Optional[List[str]] = []

class PlaylistResponse(PlaylistBase):
    id: str
    cover_art_path: Optional[str] = None
    created_at: datetime
    updated_at: datetime
    mood_category: Optional[str] = None
    is_shared: bool = False
    share_token: Optional[str] = None
    song_count: int = 0

    class Config:
        from_attributes = True

class PlaylistWithSongs(PlaylistResponse):
    songs: List[SongResponse] = []