agent-platform/services/session-service/alembic/versions/20260422_0001_init_session_models.py

"""init session models

Revision ID: 20260422_0001
Revises:
Create Date: 2026-04-22 17:20:00
"""

from collections.abc import Sequence

from alembic import op
import sqlalchemy as sa


revision: str = "20260422_0001"
down_revision: str | None = None
branch_labels: Sequence[str] | None = None
depends_on: Sequence[str] | None = None


def upgrade() -> None:
    op.create_table(
        "session",
        sa.Column("app_id", sa.String(length=36), nullable=False),
        sa.Column("user_id", sa.String(length=36), nullable=False),
        sa.Column("channel_type", sa.String(length=32), nullable=False),
        sa.Column("session_status", sa.String(length=32), nullable=False),
        sa.Column("title", sa.String(length=256), nullable=True),
        sa.Column("started_time", sa.DateTime(), nullable=True),
        sa.Column("last_active_time", sa.DateTime(), nullable=True),
        sa.Column("closed_time", sa.DateTime(), nullable=True),
        sa.Column("id", sa.String(length=36), nullable=False),
        sa.Column("tenant_id", sa.String(length=36), nullable=False),
        sa.Column("created_by", sa.String(length=36), nullable=True),
        sa.Column("updated_by", sa.String(length=36), nullable=True),
        sa.Column("created_time", sa.DateTime(), nullable=False),
        sa.Column("updated_time", sa.DateTime(), nullable=False),
        sa.Column("deleted_time", sa.DateTime(), nullable=True),
        sa.Column("version", sa.Integer(), nullable=False),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index("ix_session_app_id", "session", ["app_id"], unique=False)
    op.create_index("ix_session_tenant_id", "session", ["tenant_id"], unique=False)
    op.create_index("ix_session_user_id", "session", ["user_id"], unique=False)

    op.create_table(
        "message",
        sa.Column("session_id", sa.String(length=36), nullable=False),
        sa.Column("turn_id", sa.String(length=36), nullable=True),
        sa.Column("role", sa.String(length=32), nullable=False),
        sa.Column("content_type", sa.String(length=32), nullable=False),
        sa.Column("content_text", sa.Text(), nullable=True),
        sa.Column("content_json", sa.JSON(), nullable=True),
        sa.Column("token_count", sa.Integer(), nullable=True),
        sa.Column("id", sa.String(length=36), nullable=False),
        sa.Column("tenant_id", sa.String(length=36), nullable=False),
        sa.Column("created_by", sa.String(length=36), nullable=True),
        sa.Column("updated_by", sa.String(length=36), nullable=True),
        sa.Column("created_time", sa.DateTime(), nullable=False),
        sa.Column("updated_time", sa.DateTime(), nullable=False),
        sa.Column("deleted_time", sa.DateTime(), nullable=True),
        sa.Column("version", sa.Integer(), nullable=False),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index("ix_message_session_id", "message", ["session_id"], unique=False)
    op.create_index("ix_message_tenant_id", "message", ["tenant_id"], unique=False)
    op.create_index("ix_message_turn_id", "message", ["turn_id"], unique=False)

    op.create_table(
        "run_request",
        sa.Column("session_id", sa.String(length=36), nullable=False),
        sa.Column("app_version_id", sa.String(length=36), nullable=False),
        sa.Column("workflow_version_id", sa.String(length=36), nullable=False),
        sa.Column("trigger_type", sa.String(length=32), nullable=False),
        sa.Column("request_payload_json", sa.JSON(), nullable=True),
        sa.Column("request_status", sa.String(length=32), nullable=False),
        sa.Column("id", sa.String(length=36), nullable=False),
        sa.Column("tenant_id", sa.String(length=36), nullable=False),
        sa.Column("created_by", sa.String(length=36), nullable=True),
        sa.Column("updated_by", sa.String(length=36), nullable=True),
        sa.Column("created_time", sa.DateTime(), nullable=False),
        sa.Column("updated_time", sa.DateTime(), nullable=False),
        sa.Column("deleted_time", sa.DateTime(), nullable=True),
        sa.Column("version", sa.Integer(), nullable=False),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index("ix_run_request_session_id", "run_request", ["session_id"], unique=False)
    op.create_index("ix_run_request_tenant_id", "run_request", ["tenant_id"], unique=False)


def downgrade() -> None:
    op.drop_index("ix_run_request_tenant_id", table_name="run_request")
    op.drop_index("ix_run_request_session_id", table_name="run_request")
    op.drop_table("run_request")

    op.drop_index("ix_message_turn_id", table_name="message")
    op.drop_index("ix_message_tenant_id", table_name="message")
    op.drop_index("ix_message_session_id", table_name="message")
    op.drop_table("message")

    op.drop_index("ix_session_user_id", table_name="session")
    op.drop_index("ix_session_tenant_id", table_name="session")
    op.drop_index("ix_session_app_id", table_name="session")
    op.drop_table("session")