"""Add mentor_slot table

Revision ID: b2c3d4e5f6a7
Revises: a1b2c3d4e5f6
Create Date: 2026-04-04 00:00:00.000000

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


revision: str = 'b2c3d4e5f6a7'
down_revision: Union[str, Sequence[str], None] = 'a1b2c3d4e5f6'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        'mentor_slot',
        sa.Column('id', sa.Integer(), primary_key=True, autoincrement=True),
        sa.Column('mentor_id', sa.Integer(), sa.ForeignKey('user.id'), nullable=False, index=True),
        sa.Column('start_time', sa.DateTime(), nullable=False),
        sa.Column('end_time', sa.DateTime(), nullable=False),
        sa.Column('title', sa.String(), nullable=True),
        sa.Column('notes', sa.String(), nullable=True),
        sa.Column('is_booked', sa.Boolean(), nullable=False, default=False),
        sa.Column('booked_by_id', sa.Integer(), sa.ForeignKey('user.id'), nullable=True),
        sa.Column('created_at', sa.DateTime(), nullable=False),
    )


def downgrade() -> None:
    op.drop_table('mentor_slot')