"""add groups for multi agent

Revision ID: 77de976590ae
Revises: 167491cfb7a8
Create Date: 2025-03-12 14:01:58.034385

"""

from typing import Sequence, Union

import sqlalchemy as sa

from alembic import op
from letta.settings import settings

# revision identifiers, used by Alembic.
revision: str = "77de976590ae"
down_revision: Union[str, None] = "167491cfb7a8"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    # Skip this migration for SQLite
    if not settings.letta_pg_uri_no_default:
        return

    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table(
        "groups",
        sa.Column("id", sa.String(), nullable=False),
        sa.Column("description", sa.String(), nullable=False),
        sa.Column("manager_type", sa.String(), nullable=False),
        sa.Column("manager_agent_id", sa.String(), nullable=True),
        sa.Column("termination_token", sa.String(), nullable=True),
        sa.Column("max_turns", sa.Integer(), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=True),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=True),
        sa.Column("is_deleted", sa.Boolean(), server_default=sa.text("FALSE"), nullable=False),
        sa.Column("_created_by_id", sa.String(), nullable=True),
        sa.Column("_last_updated_by_id", sa.String(), nullable=True),
        sa.Column("organization_id", sa.String(), nullable=False),
        sa.ForeignKeyConstraint(["manager_agent_id"], ["agents.id"], ondelete="RESTRICT"),
        sa.ForeignKeyConstraint(
            ["organization_id"],
            ["organizations.id"],
        ),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_table(
        "groups_agents",
        sa.Column("group_id", sa.String(), nullable=False),
        sa.Column("agent_id", sa.String(), nullable=False),
        sa.ForeignKeyConstraint(["agent_id"], ["agents.id"], ondelete="CASCADE"),
        sa.ForeignKeyConstraint(["group_id"], ["groups.id"], ondelete="CASCADE"),
        sa.PrimaryKeyConstraint("group_id", "agent_id"),
    )
    op.add_column("messages", sa.Column("group_id", sa.String(), nullable=True))
    # ### end Alembic commands ###


def downgrade() -> None:
    # Skip this migration for SQLite
    if not settings.letta_pg_uri_no_default:
        return

    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_column("messages", "group_id")
    op.drop_table("groups_agents")
    op.drop_table("groups")
    # ### end Alembic commands ###