"""create last_seen table

Revision ID: 0001_create_last_seen_table
Revises: 
Create Date: 2025-12-12 00:00:00.000000
"""
from alembic import op
import sqlalchemy as sa

# revision identifiers, used by Alembic.
revision = '0001_create_last_seen_table'
down_revision = None
branch_labels = None
depends_on = None


def upgrade():
    op.create_table(
        'last_seen',
        sa.Column('id', sa.Integer(), primary_key=True),
        sa.Column('user_id', sa.Integer(), nullable=False),
        sa.Column('channel_id', sa.Integer(), nullable=True),
        sa.Column('dm_user_id', sa.Integer(), nullable=True),
        sa.Column('last_seen', sa.DateTime(), nullable=False),
    )
    op.create_index(op.f('ix_last_seen_last_seen'), 'last_seen', ['last_seen'], unique=False)


def downgrade():
    op.drop_index(op.f('ix_last_seen_last_seen'), table_name='last_seen')
    op.drop_table('last_seen')