from datetime import datetime

from sqlalchemy import Boolean, DateTime, Enum, ForeignKey, Integer, String, Text, func
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.db.base import Base
from app.models.enums import AdminRole, EventType, PlatformKind


class AdminUser(Base):
    __tablename__ = "admin_users"

    id: Mapped[int] = mapped_column(Integer, primary_key=True)
    email: Mapped[str] = mapped_column(String(255), unique=True, index=True)
    hashed_password: Mapped[str] = mapped_column(String(255))
    role: Mapped[AdminRole] = mapped_column(Enum(AdminRole), default=AdminRole.super_admin)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())


class NewsletterSubscriber(Base):
    __tablename__ = "newsletter_subscribers"

    id: Mapped[int] = mapped_column(Integer, primary_key=True)
    email: Mapped[str] = mapped_column(String(255), unique=True, index=True)
    neighborhood: Mapped[str | None] = mapped_column(String(120), nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())


class AlertDispatch(Base):
    __tablename__ = "alert_dispatches"

    id: Mapped[int] = mapped_column(Integer, primary_key=True)
    alert_key: Mapped[str] = mapped_column(String(120), unique=True, index=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())


class PlatformLink(Base):
    __tablename__ = "platform_links"

    id: Mapped[int] = mapped_column(Integer, primary_key=True)
    kind: Mapped[PlatformKind] = mapped_column(Enum(PlatformKind), index=True)
    label: Mapped[str] = mapped_column(String(120))
    url: Mapped[str] = mapped_column(String(512))
    sort_order: Mapped[int] = mapped_column(Integer, default=0)
    is_active: Mapped[bool] = mapped_column(Boolean, default=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())


class EventEdition(Base):
    __tablename__ = "event_editions"

    id: Mapped[int] = mapped_column(Integer, primary_key=True)
    title: Mapped[str] = mapped_column(String(200))
    slug: Mapped[str] = mapped_column(String(200), unique=True, index=True)
    event_type: Mapped[EventType] = mapped_column(Enum(EventType), index=True)
    city: Mapped[str] = mapped_column(String(80), default="Bengaluru")
    venue_name: Mapped[str | None] = mapped_column(String(200), nullable=True)
    event_date: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
    description: Mapped[str | None] = mapped_column(Text, nullable=True)
    is_published: Mapped[bool] = mapped_column(Boolean, default=False)
    is_featured: Mapped[bool] = mapped_column(Boolean, default=False)
    cover_image_path: Mapped[str | None] = mapped_column(String(512), nullable=True)
    bookmyshow_url: Mapped[str | None] = mapped_column(String(512), nullable=True)
    district_url: Mapped[str | None] = mapped_column(String(512), nullable=True)
    instagram_url: Mapped[str | None] = mapped_column(String(512), nullable=True)
    meta_description: Mapped[str | None] = mapped_column(String(320), nullable=True)
    sort_order: Mapped[int] = mapped_column(Integer, default=0)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())

    media: Mapped[list["MediaAsset"]] = relationship(
        "MediaAsset",
        back_populates="edition",
        cascade="all, delete-orphan",
        order_by="MediaAsset.sort_order",
    )


class OutboundClick(Base):
    __tablename__ = "outbound_clicks"

    id: Mapped[int] = mapped_column(Integer, primary_key=True)
    link_kind: Mapped[str] = mapped_column(String(64), index=True)
    destination_url: Mapped[str] = mapped_column(String(512))
    edition_id: Mapped[int | None] = mapped_column(
        ForeignKey("event_editions.id", ondelete="SET NULL"),
        nullable=True,
        index=True,
    )
    referrer: Mapped[str | None] = mapped_column(String(512), nullable=True)
    user_agent: Mapped[str | None] = mapped_column(String(512), nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), index=True)


class MediaAsset(Base):
    __tablename__ = "media_assets"

    id: Mapped[int] = mapped_column(Integer, primary_key=True)
    edition_id: Mapped[int] = mapped_column(ForeignKey("event_editions.id", ondelete="CASCADE"), index=True)
    file_path: Mapped[str] = mapped_column(String(512))
    caption: Mapped[str | None] = mapped_column(String(300), nullable=True)
    sort_order: Mapped[int] = mapped_column(Integer, default=0)
    is_published: Mapped[bool] = mapped_column(Boolean, default=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())

    edition: Mapped["EventEdition"] = relationship("EventEdition", back_populates="media")