"""add visitor and message

Revision ID: 7c0c51b5cdb0
Revises: e82004273fda
Create Date: 2025-11-18 16:05:09.925729

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision: str = '7c0c51b5cdb0'
down_revision: Union[str, Sequence[str], None] = 'e82004273fda'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    """Upgrade schema."""
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table('visitors',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('visitor_id', sa.String(length=100), nullable=False),
    sa.Column('client_id', sa.Integer(), nullable=True),
    sa.Column('ip_address', sa.String(length=50), nullable=True),
    sa.Column('user_agent', sa.String(length=255), nullable=True),
    sa.Column('created_at', sa.TIMESTAMP(), server_default=sa.text('now()'), nullable=True),
    sa.ForeignKeyConstraint(['client_id'], ['clients.id'], ),
    sa.PrimaryKeyConstraint('id'),
    sa.UniqueConstraint('visitor_id')
    )
    op.create_index(op.f('ix_visitors_id'), 'visitors', ['id'], unique=False)
    op.create_table('messages',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('client_id', sa.Integer(), nullable=True),
    sa.Column('visitor_id', sa.Integer(), nullable=True),
    sa.Column('sender', sa.String(length=20), nullable=True),
    sa.Column('text', sa.Text(), nullable=True),
    sa.Column('created_at', sa.TIMESTAMP(), server_default=sa.text('now()'), nullable=True),
    sa.ForeignKeyConstraint(['client_id'], ['clients.id'], ),
    sa.ForeignKeyConstraint(['visitor_id'], ['visitors.id'], ),
    sa.PrimaryKeyConstraint('id')
    )
    op.create_index(op.f('ix_messages_id'), 'messages', ['id'], unique=False)
    # ### end Alembic commands ###


def downgrade() -> None:
    """Downgrade schema."""
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_index(op.f('ix_messages_id'), table_name='messages')
    op.drop_table('messages')
    op.drop_index(op.f('ix_visitors_id'), table_name='visitors')
    op.drop_table('visitors')
    # ### end Alembic commands ###