"""Add user table and task relation

Revision ID: 0002
Revises: 0001
Create Date: 2023-10-31

"""

from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic
revision = "0002"
down_revision = "0001"
branch_labels = None
depends_on = None


def upgrade():
    # Create user table
    op.create_table(
        "user",
        sa.Column("id", sa.Integer(), nullable=False),
        sa.Column("email", sa.String(length=255), nullable=False),
        sa.Column("username", sa.String(length=100), nullable=False),
        sa.Column("hashed_password", sa.String(length=255), nullable=False),
        sa.Column("is_active", sa.Boolean(), nullable=True, default=True),
        sa.Column("is_superuser", sa.Boolean(), nullable=True, default=False),
        sa.Column("created_at", sa.DateTime(), nullable=True),
        sa.Column("updated_at", sa.DateTime(), nullable=True),
        sa.PrimaryKeyConstraint("id"),
    )

    # Create indexes on user table
    op.create_index(op.f("ix_user_email"), "user", ["email"], unique=True)
    op.create_index(op.f("ix_user_id"), "user", ["id"], unique=False)
    op.create_index(op.f("ix_user_username"), "user", ["username"], unique=True)

    # Add user_id column to task table
    with op.batch_alter_table("task", schema=None) as batch_op:
        batch_op.add_column(sa.Column("user_id", sa.Integer(), nullable=True))
        batch_op.create_foreign_key("fk_task_user_id", "user", ["user_id"], ["id"])


def downgrade():
    # Remove foreign key and user_id column from task table
    with op.batch_alter_table("task", schema=None) as batch_op:
        batch_op.drop_constraint("fk_task_user_id", type_="foreignkey")
        batch_op.drop_column("user_id")

    # Drop indexes on user table
    op.drop_index(op.f("ix_user_username"), table_name="user")
    op.drop_index(op.f("ix_user_id"), table_name="user")
    op.drop_index(op.f("ix_user_email"), table_name="user")

    # Drop user table
    op.drop_table("user")