"""Log entry model — stored in PostgreSQL."""

import uuid
from datetime import datetime, timezone

from sqlalchemy import DateTime, Index, Integer, String, Text
from sqlalchemy.dialects.postgresql import JSONB
from sqlalchemy.orm import Mapped, mapped_column

from app.database import Base


class LogEntry(Base):
    __tablename__ = "log_entries"

    id: Mapped[str] = mapped_column(
        String(36), primary_key=True, default=lambda: str(uuid.uuid4())
    )
    project_id: Mapped[str] = mapped_column(String(36), nullable=False, index=True)
    project_name: Mapped[str] = mapped_column(String(128), nullable=False, index=True)
    timestamp: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), nullable=False, index=True,
        default=lambda: datetime.now(timezone.utc),
    )
    level: Mapped[str] = mapped_column(String(16), nullable=False, index=True)
    logger: Mapped[str] = mapped_column(String(128), default="root")
    message: Mapped[str] = mapped_column(Text, nullable=False)
    module: Mapped[str | None] = mapped_column(String(256), nullable=True)
    function: Mapped[str | None] = mapped_column(String(128), nullable=True)
    line_no: Mapped[int | None] = mapped_column(Integer, nullable=True)
    trace_id: Mapped[str | None] = mapped_column(String(64), nullable=True, index=True)
    exception: Mapped[str | None] = mapped_column(Text, nullable=True)
    extra: Mapped[dict] = mapped_column(JSONB, default=dict)

    __table_args__ = (
        Index("ix_log_entries_project_time", "project_id", timestamp.desc()),
    )