"""M2: ai_proposal, attachments

Revision ID: b0dc582ec93e
Revises: 9886818da1f0
Create Date: 2026-09-19 20:42:27.973801

"""
from collections.abc import Sequence

import sqlalchemy as sa

from alembic import op

# revision identifiers, used by Alembic.
revision: str = 'b0dc582ec93e'
down_revision: str | Sequence[str] | None = '9886818da1f0'
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    """Upgrade schema."""
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table('attachments',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('task_id', sa.Integer(), nullable=False),
    sa.Column('filename', sa.String(length=255), nullable=False),
    sa.Column('original_name', sa.String(length=255), nullable=False),
    sa.Column('mime', sa.String(length=100), nullable=False),
    sa.Column('size', sa.Integer(), nullable=False),
    sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
    sa.ForeignKeyConstraint(['task_id'], ['tasks.id'], ondelete='CASCADE'),
    sa.PrimaryKeyConstraint('id')
    )
    op.add_column('tasks', sa.Column('ai_proposal', sa.JSON(), nullable=True))
    # ### end Alembic commands ###


def downgrade() -> None:
    """Downgrade schema."""
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_column('tasks', 'ai_proposal')
    op.drop_table('attachments')
    # ### end Alembic commands ###