"""add workflow definition

Revision ID: 58f17b468b3c
Revises: a2b092ff7282
Create Date: 2025-06-03 13:08:23.709070

"""

from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op

# revision identifiers, used by Alembic.
revision: str = "58f17b468b3c"
down_revision: Union[str, None] = "a2b092ff7282"
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! ###
    op.create_table(
        "workflow_definitions",
        sa.Column("id", sa.Integer(), nullable=False),
        sa.Column("workflow_hash", sa.String(), nullable=False),
        sa.Column("workflow_json", sa.JSON(), nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=True),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index(
        op.f("ix_workflow_definitions_id"), "workflow_definitions", ["id"], unique=False
    )
    op.create_index(
        op.f("ix_workflow_definitions_workflow_hash"),
        "workflow_definitions",
        ["workflow_hash"],
        unique=True,
    )
    op.add_column(
        "workflow_runs", sa.Column("definition_id", sa.Integer(), nullable=True)
    )
    op.create_foreign_key(
        None, "workflow_runs", "workflow_definitions", ["definition_id"], ["id"]
    )
    op.add_column(
        "workflows", sa.Column("current_definition_id", sa.Integer(), nullable=True)
    )
    op.create_foreign_key(
        None, "workflows", "workflow_definitions", ["current_definition_id"], ["id"]
    )
    # ### end Alembic commands ###


def downgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_constraint(None, "workflows", type_="foreignkey")
    op.drop_column("workflows", "current_definition_id")
    op.drop_constraint(None, "workflow_runs", type_="foreignkey")
    op.drop_column("workflow_runs", "definition_id")
    op.drop_index(
        op.f("ix_workflow_definitions_workflow_hash"), table_name="workflow_definitions"
    )
    op.drop_index(op.f("ix_workflow_definitions_id"), table_name="workflow_definitions")
    op.drop_table("workflow_definitions")
    # ### end Alembic commands ###