"""vessels — daily VesselAPI snapshots for DVR as-of

Revision ID: 009_vessels
Revises: 008_summary_kind
Create Date: 2026-08-29
"""

from alembic import op

revision = "009_vessels"
down_revision = "008_summary_kind"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.execute(
        """
        CREATE TABLE IF NOT EXISTS vessels (
            mmsi     TEXT NOT NULL,
            poll_at  TIMESTAMPTZ NOT NULL,
            lat      DOUBLE PRECISION NOT NULL,
            lon      DOUBLE PRECISION NOT NULL,
            heading  DOUBLE PRECISION,
            speed    DOUBLE PRECISION,
            label    TEXT,
            extra    JSONB,
            PRIMARY KEY (mmsi, poll_at)
        )
        """
    )
    op.execute(
        "CREATE INDEX IF NOT EXISTS ix_vessels_poll_at ON vessels (poll_at DESC)"
    )
    op.execute(
        "CREATE INDEX IF NOT EXISTS ix_vessels_bbox ON vessels (lon, lat)"
    )


def downgrade() -> None:
    op.execute("DROP TABLE IF EXISTS vessels")