import { describe, it, expect } from 'vitest';
import { VestRuntime } from '../vestjs-runtime';
import { IsolateMutator } from '../Isolate/IsolateMutator';
import { Isolate } from '../Isolate/Isolate';
import { RuntimeState } from '../Orchestrator/RuntimeStates';

describe('Runtime Orchestration', () => {
  it('Should transition to PENDING if an isolate is pending after mount', () => {
    VestRuntime.Run(
      VestRuntime.createRef(() => null, {}),
      () => {
        // Create a pending isolate
        const isolate = Isolate.create('test', async () => {
          await new Promise(() => {});
        });

        IsolateMutator.setParent(isolate, VestRuntime.useAvailableRoot());
        IsolateMutator.setPending(isolate);

        expect(VestRuntime.useRuntimeState()).toBe(RuntimeState.PENDING);
      },
    );
  });

  it('Should transition to STABLE when pending isolate is done', () => {
    VestRuntime.Run(
      VestRuntime.createRef(() => null, {}),
      () => {
        const isolate = Isolate.create('test', async () => {
          await new Promise(() => {});
        });
        IsolateMutator.setParent(isolate, VestRuntime.useAvailableRoot());
        IsolateMutator.setPending(isolate);

        // Mark as done
        IsolateMutator.setDone(isolate);

        expect(VestRuntime.useRuntimeState()).toBe(RuntimeState.STABLE);
      },
    );
  });
});