from __future__ import annotations

from datetime import datetime

from sqlalchemy import DateTime, Float, Integer, String, Text
from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column


class Base(DeclarativeBase):
    pass


class AlertRecord(Base):
    __tablename__ = "alerts"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    symbol: Mapped[str] = mapped_column(String(32), index=True)
    chain: Mapped[str] = mapped_column(String(32), index=True)
    trigger_types: Mapped[str] = mapped_column(String(255))
    score: Mapped[float] = mapped_column(Float)
    details_json: Mapped[str] = mapped_column(Text)
    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, index=True)


class RuntimeLog(Base):
    __tablename__ = "runtime_logs"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    level: Mapped[str] = mapped_column(String(12), index=True)
    message: Mapped[str] = mapped_column(Text)
    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, index=True)


class KvStore(Base):
    """Simple key-value settings persisted in SQLite (e.g. chart bar from web UI)."""

    __tablename__ = "kv_store"

    key: Mapped[str] = mapped_column(String(64), primary_key=True)
    value: Mapped[str] = mapped_column(Text)
    updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)