import assert from 'node:assert/strict';
import test from 'node:test';
import { randomUUID } from 'node:crypto';

const DIST_ROOT = new URL('../dist/src/', import.meta.url);

async function importFresh(relativePath) {
  return import(new URL(`${relativePath}?t=${Date.now()}-${Math.random()}`, DIST_ROOT).href);
}

test('SupabaseSaver can be imported and initialized without crashing', async () => {
  const { SupabaseSaver } = await importFresh('./agent/SupabaseSaver.js');
  const saver = new SupabaseSaver();
  assert.ok(saver);
  assert.equal(typeof saver.getTuple, 'function');
  assert.equal(typeof saver.put, 'function');
});

test('createAgentGraph wires SupabaseSaver successfully or falls back cleanly', async () => {
  const { createAgentGraph } = await importFresh('./agent/graph.js');
  
  // Default instantiation handles missing env vars without throwing unhandled exceptions 
  // because the Supabase client logic handles it or createAgentGraph catches it
  const graph = createAgentGraph();
  assert.ok(graph);
  
  // Can explicitly configure checkpointer
  const customGraph = createAgentGraph({ checkpointer: null });
  assert.ok(customGraph);
});

test('createAgentGraph supports interruptBefore for Human-in-the-loop', async () => {
  const { createAgentGraph } = await importFresh('./agent/graph.js');
  const graph = createAgentGraph({ requireApproval: true, checkpointer: null });
  assert.ok(graph);
  // Internally this sets interruptBefore: ['tools']
});