"""Allow users to be deleted without deleting videos or playlists

Revision ID: 7730c70981a8
Revises: fc7ec3d33324
Create Date: 2026-08-28 09:31:49.074158

"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import mysql

# revision identifiers, used by Alembic.
revision = '7730c70981a8'
down_revision = 'fc7ec3d33324'
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    with op.batch_alter_table('playlists', schema=None) as batch_op:
        batch_op.alter_column('created_by',
               existing_type=mysql.INTEGER(display_width=11),
               nullable=True)
        batch_op.drop_constraint('playlists_ibfk_1', type_='foreignkey')
        batch_op.create_foreign_key(None, 'users', ['created_by'], ['id'], ondelete='SET NULL')

    with op.batch_alter_table('videos', schema=None) as batch_op:
        batch_op.alter_column('uploaded_by',
               existing_type=mysql.INTEGER(display_width=11),
               nullable=True)
        batch_op.drop_constraint('videos_ibfk_1', type_='foreignkey')
        batch_op.create_foreign_key(None, 'users', ['uploaded_by'], ['id'], ondelete='SET NULL')

    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    with op.batch_alter_table('videos', schema=None) as batch_op:
        batch_op.drop_constraint(None, type_='foreignkey')
        batch_op.create_foreign_key('videos_ibfk_1', 'users', ['uploaded_by'], ['id'])
        batch_op.alter_column('uploaded_by',
               existing_type=mysql.INTEGER(display_width=11),
               nullable=False)

    with op.batch_alter_table('playlists', schema=None) as batch_op:
        batch_op.drop_constraint(None, type_='foreignkey')
        batch_op.create_foreign_key('playlists_ibfk_1', 'users', ['created_by'], ['id'])
        batch_op.alter_column('created_by',
               existing_type=mysql.INTEGER(display_width=11),
               nullable=False)

    # ### end Alembic commands ###