from sqlalchemy import Column, Integer, String, Boolean, DateTime, ForeignKey, Text
from sqlalchemy.orm import relationship
from database import Base


class User(Base):
    __tablename__ = "users"

    id = Column(Integer, primary_key=True, index=True)
    username = Column(String(50), unique=True, nullable=False)
    email = Column(String(100), unique=True, nullable=True)
    password_hash = Column(String(255), nullable=False)
    is_admin = Column(Boolean, default=False)
    avatar_filename = Column(String(255), nullable=True)
    totp_secret = Column(String(32), nullable=True)
    totp_enabled = Column(Boolean, default=False)

    caldav_accounts = relationship(
        "CalDAVAccount", back_populates="user", cascade="all, delete-orphan"
    )
    settings = relationship(
        "UserSettings", back_populates="user", uselist=False, cascade="all, delete-orphan"
    )
    local_calendars = relationship(
        "LocalCalendar", back_populates="user", cascade="all, delete-orphan"
    )
    ical_subscriptions = relationship(
        "ICalSubscription", back_populates="user", cascade="all, delete-orphan"
    )
    google_accounts = relationship(
        "GoogleAccount", back_populates="user", cascade="all, delete-orphan"
    )
    homeassistant_accounts = relationship(
        "HomeAssistantAccount", back_populates="user", cascade="all, delete-orphan"
    )


class CalDAVAccount(Base):
    __tablename__ = "caldav_accounts"

    id = Column(Integer, primary_key=True, index=True)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    name = Column(String(100), nullable=False)
    url = Column(String(500), nullable=False)
    username = Column(String(100), nullable=False)
    password = Column(String(255), nullable=False)
    color = Column(String(7), default="#4285f4")
    enabled = Column(Boolean, default=True)

    user = relationship("User", back_populates="caldav_accounts")
    calendars = relationship(
        "Calendar", back_populates="account", cascade="all, delete-orphan"
    )


class Calendar(Base):
    __tablename__ = "calendars"

    id = Column(Integer, primary_key=True, index=True)
    account_id = Column(Integer, ForeignKey("caldav_accounts.id"), nullable=False)
    cal_id = Column(String(500), nullable=False)
    name = Column(String(100), nullable=False)
    color = Column(String(7), nullable=True)
    enabled = Column(Boolean, default=True)
    sidebar_hidden = Column(Boolean, default=False)

    account = relationship("CalDAVAccount", back_populates="calendars")


class UserSettings(Base):
    __tablename__ = "user_settings"

    id = Column(Integer, primary_key=True, index=True)
    user_id = Column(Integer, ForeignKey("users.id"), unique=True, nullable=False)
    default_view = Column(String(20), default="month")
    week_start_day = Column(String(10), default="monday")
    primary_color = Column(String(7), default="#4285f4")
    accent_color = Column(String(7), default="#ea4335")
    today_color = Column(String(7), default="#4285f4")
    dim_past_events = Column(Boolean, default=False)
    text_contrast = Column(Integer, default=3)
    line_contrast = Column(Integer, default=3)
    hour_height = Column(Integer, default=60)
    language = Column(String(5), default="de")
    month_divider_color = Column(String(7), default="#7090c0")
    month_label_color = Column(String(7), default="#7090c0")

    user = relationship("User", back_populates="settings")


class LocalCalendar(Base):
    __tablename__ = "local_calendars"

    id = Column(Integer, primary_key=True, index=True)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    name = Column(String(100), nullable=False)
    color = Column(String(7), default="#34a853")
    enabled = Column(Boolean, default=True)

    user = relationship("User", back_populates="local_calendars")
    events = relationship("LocalEvent", back_populates="calendar", cascade="all, delete-orphan")


class LocalEvent(Base):
    __tablename__ = "local_events"

    id = Column(Integer, primary_key=True, index=True)
    calendar_id = Column(Integer, ForeignKey("local_calendars.id"), nullable=False)
    uid = Column(String(255), nullable=False, unique=True)
    title = Column(String(255), nullable=False)
    start = Column(String(50), nullable=False)
    end = Column(String(50), nullable=False)
    all_day = Column(Boolean, default=False)
    location = Column(String(500), nullable=True)
    description = Column(Text, nullable=True)
    color = Column(String(7), nullable=True)
    rrule = Column(Text, nullable=True)
    exdate = Column(Text, nullable=True)  # Comma-separated YYYYMMDD dates to exclude

    calendar = relationship("LocalCalendar", back_populates="events")


class ICalSubscription(Base):
    __tablename__ = "ical_subscriptions"

    id = Column(Integer, primary_key=True, index=True)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    name = Column(String(100), nullable=False)
    url = Column(String(1000), nullable=False)
    color = Column(String(7), default="#46bdc6")
    enabled = Column(Boolean, default=True)
    refresh_minutes = Column(Integer, default=60)
    last_fetched = Column(DateTime, nullable=True)
    cached_ics = Column(Text, nullable=True)

    user = relationship("User", back_populates="ical_subscriptions")
    overrides = relationship("ICalOverride", back_populates="subscription", cascade="all, delete-orphan")


class ICalOverride(Base):
    __tablename__ = "ical_overrides"

    id = Column(Integer, primary_key=True, index=True)
    subscription_id = Column(Integer, ForeignKey("ical_subscriptions.id"), nullable=False)
    event_uid = Column(String(500), nullable=False)
    hidden = Column(Boolean, default=False)
    title = Column(String(255), nullable=True)
    start = Column(String(50), nullable=True)
    end = Column(String(50), nullable=True)
    all_day = Column(Boolean, nullable=True)
    location = Column(String(500), nullable=True)
    description = Column(Text, nullable=True)
    color = Column(String(7), nullable=True)

    subscription = relationship("ICalSubscription", back_populates="overrides")


class GoogleAccount(Base):
    __tablename__ = "google_accounts"

    id = Column(Integer, primary_key=True, index=True)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    email = Column(String(255), nullable=False)
    access_token = Column(Text, nullable=False)
    refresh_token = Column(Text, nullable=False)
    token_expiry = Column(DateTime, nullable=True)

    user = relationship("User", back_populates="google_accounts")
    calendars = relationship(
        "GoogleCalendar", back_populates="account", cascade="all, delete-orphan"
    )


class GoogleCalendar(Base):
    __tablename__ = "google_calendars"

    id = Column(Integer, primary_key=True, index=True)
    account_id = Column(Integer, ForeignKey("google_accounts.id"), nullable=False)
    cal_id = Column(String(500), nullable=False)
    name = Column(String(255), nullable=False)
    color = Column(String(7), nullable=True)
    enabled = Column(Boolean, default=True)
    sidebar_hidden = Column(Boolean, default=False)

    account = relationship("GoogleAccount", back_populates="calendars")


class HomeAssistantAccount(Base):
    __tablename__ = "homeassistant_accounts"

    id = Column(Integer, primary_key=True, index=True)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    name = Column(String(100), nullable=False)
    url = Column(String(500), nullable=False)
    token = Column(Text, nullable=False)
    auth_method = Column(String(20), default="token")
    refresh_token = Column(Text, nullable=True)
    token_expiry = Column(DateTime, nullable=True)
    client_id = Column(String(500), nullable=True)

    user = relationship("User", back_populates="homeassistant_accounts")
    calendars = relationship(
        "HomeAssistantCalendar", back_populates="account", cascade="all, delete-orphan"
    )


class HomeAssistantCalendar(Base):
    __tablename__ = "homeassistant_calendars"

    id = Column(Integer, primary_key=True, index=True)
    account_id = Column(Integer, ForeignKey("homeassistant_accounts.id"), nullable=False)
    entity_id = Column(String(255), nullable=False)
    name = Column(String(255), nullable=False)
    color = Column(String(7), nullable=True)
    enabled = Column(Boolean, default=True)
    sidebar_hidden = Column(Boolean, default=False)

    account = relationship("HomeAssistantAccount", back_populates="calendars")