import assert from 'node:assert/strict';
import {
  buildContinuityGateBlock,
  evaluateContinuity,
  hasValidDispatchReceipt,
  receiptMatchesPayload,
} from '../src/continuity/evaluator.mjs';

function test(name, fn) {
  try {
    fn();
    console.log(`ok - ${name}`);
  } catch (error) {
    console.error(`not ok - ${name}`);
    throw error;
  }
}

const validReceipt = {
  planId: 'plan-1',
  currentTask: 'task-7',
  nextDerivedAction: { type: 'message_subagent', task: 'continue' },
  dispatchedAt: '2026-04-24T09:00:00.000Z',
};

test('recognizes minimum valid dispatch receipt', () => {
  assert.equal(hasValidDispatchReceipt(validReceipt), true);
});

test('matches payload against valid receipt', () => {
  const payload = {
    planId: 'plan-1',
    currentTask: 'task-7',
    nextDerivedAction: { type: 'message_subagent', task: 'continue' },
  };

  assert.equal(receiptMatchesPayload(payload, validReceipt), true);
});

test('fails when completion has next action and no receipt', () => {
  const result = evaluateContinuity({
    planId: 'plan-1',
    currentTask: 'task-7',
    taskState: 'complete',
    nextDerivedAction: { type: 'message_subagent' },
    replyClosureState: 'completed',
    dispatchReceipt: null,
  });

  assert.equal(result.ok, false);
  assert.equal(result.reason, 'missing_dispatch_receipt');
});

test('fails auto-next boundary without dispatch', () => {
  const result = evaluateContinuity({
    planId: 'plan-1',
    currentTask: 'task-8',
    taskState: 'complete',
    nextTaskKnown: true,
    sameApprovedPlan: true,
    taskBoundaryStop: true,
    nextTaskId: 'task-9',
    nextDerivedAction: { type: 'message_subagent', task: 'continue' },
    replyClosureState: 'completed',
    dispatchReceipt: null,
  });

  assert.equal(result.ok, false);
  assert.equal(result.reason, 'missing_auto_next_dispatch');
});

test('passes allowed terminal state', () => {
  const result = evaluateContinuity({
    planId: 'plan-1',
    currentTask: 'task-7',
    taskState: 'complete',
    nextDerivedAction: { type: 'message_subagent' },
    replyClosureState: 'waiting_user',
    dispatchReceipt: null,
  });

  assert.equal(result.ok, true);
});

test('renders hard-gate block', () => {
  const text = buildContinuityGateBlock({
    ok: false,
    status: 'continuity_failure',
    verdict: 'continuity_failure',
    reason: 'missing_dispatch_receipt',
  });

  assert.match(text, /APPROVED_PLAN_CONTINUITY_GATE/);
  assert.match(text, /HARD_GATE/);
});

console.log('continuity.evaluator.test.mjs PASS');