"""add budgets

Revision ID: c7a5f9e2b816
Revises: b4e7c1a9f203
Create Date: 2026-08-16 18:00:00.000000

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision: str = 'c7a5f9e2b816'
down_revision: Union[str, None] = 'b4e7c1a9f203'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        'budgets',
        sa.Column('id', sa.Integer(), nullable=False),
        sa.Column('category_id', sa.Integer(), nullable=False),
        sa.Column('monthly_limit', sa.Numeric(precision=14, scale=2), nullable=False),
        sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
        sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
        sa.ForeignKeyConstraint(['category_id'], ['categories.id'], ondelete='CASCADE'),
        sa.PrimaryKeyConstraint('id'),
        sa.UniqueConstraint('category_id', name='uq_budgets_category_id'),
    )


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