"""Loans

Revision ID: 02ed6e775351
Revises: b838606ad8d1
Create Date: 2025-12-20 10:36:30.853896

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa
import sqlmodel


# revision identifiers, used by Alembic.
revision: str = '02ed6e775351'
down_revision: Union[str, None] = 'b838606ad8d1'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    book_status_enum = sa.Enum('active', 'borrowed', 'reserved', 'restoration', 'written_off', name='bookstatus')
    book_status_enum.create(op.get_bind())
    op.create_table('book_loans',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('book_id', sa.Integer(), nullable=False),
    sa.Column('user_id', sa.Integer(), nullable=False),
    sa.Column('borrowed_at', sa.DateTime(), nullable=False),
    sa.Column('due_date', sa.DateTime(), nullable=False),
    sa.Column('returned_at', sa.DateTime(), nullable=True),
    sa.ForeignKeyConstraint(['book_id'], ['book.id'], ),
    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
    sa.PrimaryKeyConstraint('id')
    )
    op.create_index(op.f('ix_book_loans_id'), 'book_loans', ['id'], unique=False)
    op.add_column('book', sa.Column('status', book_status_enum, nullable=False, server_default='active'))
    op.drop_index(op.f('ix_roles_name'), table_name='roles')
    # ### end Alembic commands ###


def downgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_index(op.f('ix_roles_name'), 'roles', ['name'], unique=True)
    op.drop_column('book', 'status')
    op.drop_index(op.f('ix_book_loans_id'), table_name='book_loans')
    op.drop_table('book_loans')
    book_status_enum = sa.Enum('active', 'borrowed', 'reserved', 'restoration', 'written_off', name='bookstatus')
    book_status_enum.drop(op.get_bind())
    # ### end Alembic commands ###