leocrm-bot
93 lines
3.9 KiB
Python
93 lines
3.9 KiB
Python
"""Workflow, WorkflowInstance, and WorkflowStepHistory models — tenant-scoped with RLS."""
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from __future__ import annotations
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import uuid
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from datetime import datetime
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from typing import Any
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from sqlalchemy import Boolean, DateTime, ForeignKey, Index, Integer, String, Text
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from sqlalchemy.dialects.postgresql import JSONB
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from sqlalchemy.dialects.postgresql import UUID as PGUUID
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from sqlalchemy.orm import Mapped, mapped_column
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from app.core.db import Base, TenantMixin
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class Workflow(Base, TenantMixin):
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"""Workflow definition — a template of steps stored as JSONB, tenant-scoped."""
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__tablename__ = "workflows"
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__table_args__ = (
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Index("ix_workflows_tenant_active", "tenant_id", "is_active"),
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Index("ix_workflows_tenant_trigger", "tenant_id", "trigger_event"),
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)
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id: Mapped[uuid.UUID] = mapped_column(
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PGUUID(as_uuid=True), primary_key=True, default=uuid.uuid4
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)
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name: Mapped[str] = mapped_column(String(200), nullable=False)
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description: Mapped[str | None] = mapped_column(Text, nullable=True)
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trigger_event: Mapped[str | None] = mapped_column(String(100), nullable=True)
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steps: Mapped[list[dict[str, Any]]] = mapped_column(JSONB, nullable=False)
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is_active: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True)
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created_by: Mapped[uuid.UUID | None] = mapped_column(
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PGUUID(as_uuid=True), ForeignKey("users.id", ondelete="SET NULL"), nullable=True
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)
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class WorkflowInstance(Base, TenantMixin):
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"""A running instance of a workflow — tracks current step, status, context."""
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__tablename__ = "workflow_instances"
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__table_args__ = (
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Index("ix_wf_instances_tenant_status", "tenant_id", "status"),
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Index("ix_wf_instances_tenant_workflow", "tenant_id", "workflow_id"),
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)
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id: Mapped[uuid.UUID] = mapped_column(
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PGUUID(as_uuid=True), primary_key=True, default=uuid.uuid4
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)
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workflow_id: Mapped[uuid.UUID] = mapped_column(
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PGUUID(as_uuid=True),
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ForeignKey("workflows.id", ondelete="CASCADE"),
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nullable=False,
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index=True,
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)
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status: Mapped[str] = mapped_column(String(30), nullable=False, default="pending")
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# pending → in_progress → completed / rejected / cancelled
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current_step_index: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
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context: Mapped[dict[str, Any]] = mapped_column(JSONB, default=dict, nullable=False)
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initiated_by: Mapped[uuid.UUID | None] = mapped_column(
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PGUUID(as_uuid=True), ForeignKey("users.id", ondelete="SET NULL"), nullable=True
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)
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completed_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
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timeout_hours: Mapped[int | None] = mapped_column(Integer, nullable=True)
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timeout_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
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class WorkflowStepHistory(Base, TenantMixin):
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"""Immutable record of every step transition in a workflow instance."""
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__tablename__ = "workflow_step_history"
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__table_args__ = (Index("ix_wf_step_history_tenant_instance", "tenant_id", "instance_id"),)
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id: Mapped[uuid.UUID] = mapped_column(
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PGUUID(as_uuid=True), primary_key=True, default=uuid.uuid4
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)
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instance_id: Mapped[uuid.UUID] = mapped_column(
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PGUUID(as_uuid=True),
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ForeignKey("workflow_instances.id", ondelete="CASCADE"),
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nullable=False,
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index=True,
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)
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step_index: Mapped[int] = mapped_column(Integer, nullable=False)
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step_type: Mapped[str] = mapped_column(String(50), nullable=False)
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action: Mapped[str] = mapped_column(
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String(50), nullable=False
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) # entered, approved, rejected, skipped, cancelled
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actor_id: Mapped[uuid.UUID | None] = mapped_column(
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PGUUID(as_uuid=True), ForeignKey("users.id", ondelete="SET NULL"), nullable=True
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)
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details: Mapped[dict[str, Any] | None] = mapped_column(JSONB, nullable=True)
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