"""flow engine tables

Revision ID: 62ea9a5d8f9d
Revises:
Create Date: 2026-09-06 22:27:07.129788

"""

from collections.abc import Sequence

import sqlalchemy as sa
import sqlmodel
from alembic import op

# revision identifiers, used by Alembic.
revision: str = "62ea9a5d8f9d"
down_revision: str | Sequence[str] | None = None
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    """Upgrade schema."""
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table(
        "flow_definitions",
        sa.Column("id", sa.Uuid(), nullable=False),
        sa.Column("name", sqlmodel.sql.sqltypes.AutoString(length=200), nullable=False),
        sa.Column("description", sqlmodel.sql.sqltypes.AutoString(length=2000), nullable=False),
        sa.Column("status", sqlmodel.sql.sqltypes.AutoString(length=20), nullable=False),
        sa.Column("continuation_flow_id", sa.Uuid(), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=True),
        sa.ForeignKeyConstraint(
            ["continuation_flow_id"],
            ["flow_definitions.id"],
        ),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index(op.f("ix_flow_definitions_name"), "flow_definitions", ["name"], unique=True)
    op.create_table(
        "flow_versions",
        sa.Column("id", sa.Uuid(), nullable=False),
        sa.Column("flow_id", sa.Uuid(), nullable=False),
        sa.Column("version_no", sa.Integer(), nullable=False),
        sa.Column("langflow_json", sa.JSON(), nullable=True),
        sa.Column("lfx_flow_id", sqlmodel.sql.sqltypes.AutoString(length=200), nullable=True),
        sa.Column("deployed_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("author", sqlmodel.sql.sqltypes.AutoString(length=200), nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=True),
        sa.ForeignKeyConstraint(
            ["flow_id"],
            ["flow_definitions.id"],
        ),
        sa.PrimaryKeyConstraint("id"),
        sa.UniqueConstraint("flow_id", "version_no"),
    )
    op.create_index(op.f("ix_flow_versions_flow_id"), "flow_versions", ["flow_id"], unique=False)
    op.create_index(
        op.f("ix_flow_versions_version_no"), "flow_versions", ["version_no"], unique=False
    )
    op.create_table(
        "flow_runs",
        sa.Column("id", sa.Uuid(), nullable=False),
        sa.Column("version_id", sa.Uuid(), nullable=False),
        sa.Column("tenant_id", sqlmodel.sql.sqltypes.AutoString(length=200), nullable=False),
        sa.Column("status", sqlmodel.sql.sqltypes.AutoString(length=30), nullable=False),
        sa.Column("input", sa.JSON(), nullable=True),
        sa.Column("output", sa.JSON(), nullable=True),
        sa.Column("session_id", sqlmodel.sql.sqltypes.AutoString(length=200), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
        sa.ForeignKeyConstraint(
            ["version_id"],
            ["flow_versions.id"],
        ),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index(op.f("ix_flow_runs_status"), "flow_runs", ["status"], unique=False)
    op.create_index(op.f("ix_flow_runs_tenant_id"), "flow_runs", ["tenant_id"], unique=False)
    op.create_index(op.f("ix_flow_runs_version_id"), "flow_runs", ["version_id"], unique=False)
    op.create_table(
        "approval_tasks",
        sa.Column("id", sa.Uuid(), nullable=False),
        sa.Column("run_id", sa.Uuid(), nullable=False),
        sa.Column("version_id", sa.Uuid(), nullable=False),
        sa.Column("tenant_id", sqlmodel.sql.sqltypes.AutoString(length=200), nullable=False),
        sa.Column("title", sqlmodel.sql.sqltypes.AutoString(length=500), nullable=False),
        sa.Column("payload", sa.JSON(), nullable=True),
        sa.Column("continuation_flow_id", sa.Uuid(), nullable=True),
        sa.Column("approver", sqlmodel.sql.sqltypes.AutoString(length=200), nullable=True),
        sa.Column("status", sqlmodel.sql.sqltypes.AutoString(length=20), nullable=False),
        sa.Column("decision_note", sqlmodel.sql.sqltypes.AutoString(length=2000), nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("decided_at", sa.DateTime(timezone=True), nullable=True),
        sa.ForeignKeyConstraint(
            ["run_id"],
            ["flow_runs.id"],
        ),
        sa.ForeignKeyConstraint(
            ["version_id"],
            ["flow_versions.id"],
        ),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index(op.f("ix_approval_tasks_run_id"), "approval_tasks", ["run_id"], unique=False)
    op.create_index(op.f("ix_approval_tasks_status"), "approval_tasks", ["status"], unique=False)
    op.create_index(
        op.f("ix_approval_tasks_tenant_id"), "approval_tasks", ["tenant_id"], unique=False
    )
    op.create_index(
        op.f("ix_approval_tasks_version_id"), "approval_tasks", ["version_id"], unique=False
    )
    # ### end Alembic commands ###


def downgrade() -> None:
    """Downgrade schema."""
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_index(op.f("ix_approval_tasks_version_id"), table_name="approval_tasks")
    op.drop_index(op.f("ix_approval_tasks_tenant_id"), table_name="approval_tasks")
    op.drop_index(op.f("ix_approval_tasks_status"), table_name="approval_tasks")
    op.drop_index(op.f("ix_approval_tasks_run_id"), table_name="approval_tasks")
    op.drop_table("approval_tasks")
    op.drop_index(op.f("ix_flow_runs_version_id"), table_name="flow_runs")
    op.drop_index(op.f("ix_flow_runs_tenant_id"), table_name="flow_runs")
    op.drop_index(op.f("ix_flow_runs_status"), table_name="flow_runs")
    op.drop_table("flow_runs")
    op.drop_index(op.f("ix_flow_versions_version_no"), table_name="flow_versions")
    op.drop_index(op.f("ix_flow_versions_flow_id"), table_name="flow_versions")
    op.drop_table("flow_versions")
    op.drop_index(op.f("ix_flow_definitions_name"), table_name="flow_definitions")
    op.drop_table("flow_definitions")
    # ### end Alembic commands ###