import {
  createMemoryWorkflowCheckpoints,
  defineWorkflow,
  functionNode,
  runWorkflow,
} from "@arnilo/prism-workflows";

/**
 * Tiny workflow example. Not wired into `npm start` — import and call from your host.
 */
export async function runHelloWorkflow(name: string) {
  const workflow = defineWorkflow({
    id: "hello",
    nodes: {
      greet: functionNode({
        execute: async (ctx) => {
          const input = ctx.workflowInput as { name?: string };
          return { message: `Hello, ${input.name ?? name}` };
        },
      }),
    },
  });

  return runWorkflow(workflow, { name }, {
    checkpoints: createMemoryWorkflowCheckpoints(),
  });
}