"""029_modify_chat

Revision ID: 77d4c39ec22f
Revises: e96b16d3daab
Create Date: 2025-07-17 17:05:13.392973

"""
from alembic import op
import sqlalchemy as sa
import sqlmodel.sql.sqltypes
from sqlalchemy.dialects import postgresql

# revision identifiers, used by Alembic.
revision = '77d4c39ec22f'
down_revision = 'e96b16d3daab'
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.add_column('chat', sa.Column('oid', sa.BigInteger(), nullable=True))
    op.execute('update chat set oid = 1')
    op.alter_column('chat', 'create_time',
               existing_type=postgresql.TIMESTAMP(timezone=True),
               type_=sa.DateTime(),
               existing_nullable=True)
    op.alter_column('chat_record', 'create_time',
               existing_type=postgresql.TIMESTAMP(timezone=True),
               type_=sa.DateTime(),
               existing_nullable=True)
    op.alter_column('chat_record', 'finish_time',
               existing_type=postgresql.TIMESTAMP(timezone=True),
               type_=sa.DateTime(),
               existing_nullable=True)
    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.alter_column('chat_record', 'finish_time',
               existing_type=sa.DateTime(),
               type_=postgresql.TIMESTAMP(timezone=True),
               existing_nullable=True)
    op.alter_column('chat_record', 'create_time',
               existing_type=sa.DateTime(),
               type_=postgresql.TIMESTAMP(timezone=True),
               existing_nullable=True)
    op.alter_column('chat', 'create_time',
               existing_type=sa.DateTime(),
               type_=postgresql.TIMESTAMP(timezone=True),
               existing_nullable=True)
    op.drop_column('chat', 'oid')
    # ### end Alembic commands ###