import uuid
from datetime import datetime
from sqlalchemy import String, Integer, Float, Boolean, DateTime, Text, ForeignKey
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy.dialects.sqlite import JSON
from ..database import Base


class Podcast(Base):
    __tablename__ = "podcasts"

    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
    library_item_id: Mapped[str] = mapped_column(String(36), ForeignKey("library_items.id", ondelete="CASCADE"), unique=True, nullable=False)
    feed_url: Mapped[str | None] = mapped_column(Text, nullable=True)
    feed_type: Mapped[str] = mapped_column(String(10), default="rss")
    feed_last_checked: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
    update_interval_hours: Mapped[int] = mapped_column(Integer, default=24)
    author: Mapped[str | None] = mapped_column(String(500), nullable=True)
    categories: Mapped[list] = mapped_column(JSON, default=list)
    explicit: Mapped[bool] = mapped_column(Boolean, default=False)
    language: Mapped[str | None] = mapped_column(String(10), nullable=True)


class PodcastEpisode(Base):
    __tablename__ = "podcast_episodes"

    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
    podcast_id: Mapped[str] = mapped_column(String(36), ForeignKey("podcasts.id", ondelete="CASCADE"), nullable=False)
    episode_number: Mapped[str | None] = mapped_column(String(50), nullable=True)
    season_number: Mapped[str | None] = mapped_column(String(50), nullable=True)
    title: Mapped[str | None] = mapped_column(String(500), nullable=True)
    description: Mapped[str | None] = mapped_column(Text, nullable=True)
    pub_date: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
    duration_seconds: Mapped[float] = mapped_column(Float, default=0.0)
    path: Mapped[str | None] = mapped_column(Text, nullable=True)
    size_bytes: Mapped[int] = mapped_column(Integer, default=0)
    feed_episode_id: Mapped[str | None] = mapped_column(String(500), nullable=True)
    feed_episode_url: Mapped[str | None] = mapped_column(Text, nullable=True)
    explicit: Mapped[bool] = mapped_column(Boolean, default=False)
    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)