{
  "$schema": "https://metabuilder.dev/schemas/entities.schema.json",
  "schemaVersion": "2.0.0",
  "entities": [
    {
      "name": "Workflow",
      "version": "1.0",
      "description": "Workflow definition with nodes and edges",
      "primaryKey": "id",
      "timestamps": true,
      "softDelete": false,
      "fields": {
        "id": {
          "type": "uuid",
          "generated": true,
          "description": "Unique workflow identifier"
        },
        "tenantId": {
          "type": "string",
          "required": true,
          "index": true
        },
        "name": {
          "type": "string",
          "required": true,
          "maxLength": 200
        },
        "description": {
          "type": "text",
          "nullable": true
        },
        "definition": {
          "type": "text",
          "required": true,
          "description": "JSON workflow definition with nodes and edges"
        },
        "status": {
          "type": "enum",
          "enum": ["draft", "active", "archived"],
          "default": "draft"
        },
        "createdBy": {
          "type": "string",
          "required": true
        }
      },
      "indexes": [
        {
          "fields": ["tenantId"],
          "name": "idx_workflow_tenant"
        },
        {
          "fields": ["status"],
          "name": "idx_workflow_status"
        }
      ],
      "acl": {
        "create": ["admin"],
        "read": ["admin"],
        "update": ["admin"],
        "delete": ["admin"]
      }
    },
    {
      "name": "WorkflowRun",
      "version": "1.0",
      "description": "Workflow execution instance",
      "primaryKey": "id",
      "timestamps": true,
      "softDelete": false,
      "fields": {
        "id": {
          "type": "uuid",
          "generated": true
        },
        "workflowId": {
          "type": "uuid",
          "required": true,
          "index": true
        },
        "tenantId": {
          "type": "string",
          "required": true,
          "index": true
        },
        "status": {
          "type": "enum",
          "enum": ["pending", "running", "success", "failed", "cancelled"],
          "default": "pending",
          "index": true
        },
        "startTime": {
          "type": "datetime",
          "nullable": true
        },
        "endTime": {
          "type": "datetime",
          "nullable": true
        },
        "progress": {
          "type": "integer",
          "default": 0,
          "description": "Progress percentage 0-100"
        },
        "result": {
          "type": "text",
          "nullable": true,
          "description": "JSON execution result"
        },
        "error": {
          "type": "text",
          "nullable": true,
          "description": "Error message if failed"
        }
      },
      "indexes": [
        {
          "fields": ["workflowId"],
          "name": "idx_run_workflow"
        },
        {
          "fields": ["status"],
          "name": "idx_run_status"
        },
        {
          "fields": ["startTime"],
          "name": "idx_run_start"
        }
      ],
      "relations": [
        {
          "name": "workflow",
          "type": "belongsTo",
          "entity": "Workflow",
          "field": "workflowId",
          "onDelete": "Cascade"
        }
      ],
      "acl": {
        "create": ["admin"],
        "read": ["admin"],
        "update": ["admin"],
        "delete": ["admin"]
      }
    }
  ]
}