"""read_receipts hypertable

Revision ID: f3a8d1c5b7e2
Revises: e5c1f0a72b9d
Create Date: 2026-05-29 21:30:00.000000

"""

from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op
from sqlalchemy.dialects import postgresql

revision: str = "f3a8d1c5b7e2"
down_revision: str | None = "e5c1f0a72b9d"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.create_table(
        "read_receipts",
        sa.Column("account_id", sa.Integer(), nullable=False),
        sa.Column("chat_id", sa.BigInteger(), nullable=False),
        sa.Column("reader_id", sa.BigInteger(), nullable=False),
        sa.Column("ts", sa.DateTime(timezone=True), nullable=False),
        sa.Column("kind", sa.String(), nullable=False),
        sa.Column("message_id", sa.BigInteger(), nullable=False),
        sa.Column("raw", postgresql.JSONB(astext_type=sa.Text()), nullable=False),
        sa.PrimaryKeyConstraint("account_id", "chat_id", "message_id", "ts"),
    )

    op.execute(
        "SELECT create_hypertable('read_receipts', by_range('ts', INTERVAL '1 week'))"
    )
    op.execute(
        "ALTER TABLE read_receipts SET ("
        "timescaledb.enable_columnstore = true, "
        "timescaledb.segmentby = 'chat_id', "
        "timescaledb.orderby = 'ts DESC')"
    )
    op.execute(
        "CALL add_columnstore_policy('read_receipts', after => INTERVAL '30 days')"
    )


def downgrade() -> None:
    op.drop_table("read_receipts")