/**
 * plan-design-review plan-mode smoke (gate, paid, real-PTY).
 *
 * See test/skill-e2e-plan-ceo-plan-mode.test.ts for the shared assertion
 * contract. Exercises the same contract against /plan-design-review.
 *
 * Note: on no-UI-scope branches plan-design-review legitimately short-
 * circuits to plan_ready without firing AskUserQuestion. Both 'asked' and
 * 'plan_ready' are valid pass outcomes.
 */

import { describe, test, expect } from 'bun:test';
import {
  runPlanSkillObservation,
  assertReportAtBottomIfPlanWritten,
  isProseAUQVisible,
} from './helpers/claude-pty-runner';

const shouldRun = !!process.env.EVALS && process.env.EVALS_TIER === 'gate';
const describeE2E = shouldRun ? describe : describe.skip;

describeE2E('plan-design-review plan-mode smoke (gate)', () => {
  test('reaches a terminal outcome (asked or plan_ready) without silent writes', async () => {
    const obs = await runPlanSkillObservation({
      skillName: 'plan-design-review',
      inPlanMode: true,
      timeoutMs: 300_000,
    });

    if (obs.outcome === 'silent_write' || obs.outcome === 'exited' || obs.outcome === 'timeout') {
      throw new Error(
        `plan-design-review plan-mode smoke FAILED: outcome=${obs.outcome}\n` +
          `summary: ${obs.summary}\n` +
          `elapsed: ${obs.elapsedMs}ms\n` +
          `--- evidence (last 2KB visible) ---\n${obs.evidence}`,
      );
    }
    expect(['asked', 'plan_ready']).toContain(obs.outcome);
    assertReportAtBottomIfPlanWritten(obs);
  }, 360_000);

  // v1.21+ regression: see skill-e2e-plan-ceo-plan-mode.test.ts for the
  // contract. plan-design-review legitimately short-circuits on no-UI-scope
  // branches, so this case has historically used a looser envelope.
  //
  // Post-v1.28 (forever-war fix), 'exited' is acceptable when BLOCKED is
  // visible in the TTY (model correctly recognized the AUQ-unavailable
  // failure mode and stopped). The legacy 'plan_ready' (with or without
  // decisions section) and 'asked' paths remain valid pass outcomes.
  //
  // The discriminating regression signals are 'auto_decided' (AUTO_DECIDE
  // preamble fired upstream), 'silent_write', 'timeout', or 'exited'
  // without BLOCKED visible — all mean the user never saw a question they
  // should have.
  test('does not silently auto-decide when --disallowedTools AskUserQuestion is set', async () => {
    const obs = await runPlanSkillObservation({
      skillName: 'plan-design-review',
      inPlanMode: true,
      extraArgs: ['--disallowedTools', 'AskUserQuestion'],
      timeoutMs: 300_000,
    });

    // Surface visibility check (same as ceo / autoplan migrations): user
    // must SEE the question via BLOCKED string OR prose-rendered AUQ options.
    const blockedVisible = /BLOCKED\s*[—-]\s*AskUserQuestion/i.test(obs.evidence);
    const proseAUQVisible = isProseAUQVisible(obs.evidence);
    const surfaceVisible = blockedVisible || proseAUQVisible;

    if (
      obs.outcome === 'auto_decided' ||
      obs.outcome === 'silent_write' ||
      obs.outcome === 'timeout'
    ) {
      throw new Error(
        `plan-design-review AskUserQuestion-blocked regression: outcome=${obs.outcome}\n` +
          `summary: ${obs.summary}\n` +
          `elapsed: ${obs.elapsedMs}ms\n` +
          `--- evidence (last 2KB visible) ---\n${obs.evidence}`,
      );
    }
    if (obs.outcome === 'exited' && !surfaceVisible) {
      throw new Error(
        `plan-design-review AskUserQuestion-blocked regression: outcome=exited without any visible question surface (no BLOCKED string, no prose-rendered AUQ options). Model quit silently.\n` +
          `--- evidence (last 2KB visible) ---\n${obs.evidence}`,
      );
    }
    expect(['asked', 'plan_ready', 'exited']).toContain(obs.outcome);
    // NOTE: assertReportAtBottomIfPlanWritten intentionally not called —
    // see skill-e2e-plan-ceo-plan-mode test 2 for the full rationale. Under
    // --disallowedTools the model can't run a full review, so the
    // report-at-bottom contract doesn't apply.
  }, 360_000);
});