import assert from "node:assert/strict";
import { spawnSync } from "node:child_process";
import { fileURLToPath } from "node:url";
import test from "node:test";

// BUG-1058 (TASK-rectification-grounding-20260927 T4), route level. The real
// POST /api/rectification/agent handler, typed-message preflight, agent-turn
// branch and runV9AgentTurn, with fake persistence. A typed answer to a
// choice card that also carries a dated event: the preflight applies the
// choice with deferFollowup (its narration is not persisted) and hands the
// rest to the agent. The choice itself moves the credible range; before the
// fix the agent turn compared post-answer with post-answer and nobody said
// the range changed. Now the persisted body carries exactly one server range
// sentence covering the whole message.
//
// Module doubles: the choice application (its only effect needed here is the
// stored range moving and deferFollowup being honoured), the classifier, the
// Mastra agent (a scripted stream), billing and the post-turn exit gate.
// Uses node:test module mocks (Node >= 22.3, same as the other route tests).
function routeScript(batchMovesRange: boolean) {
  return String.raw`
    import assert from 'node:assert/strict';
    import { mock } from 'node:test';
    import { pathToFileURL } from 'node:url';
    import { CASE_ID, SESSION_ID, USER_ID, TURN_ID, FOCUS_ID, CANDIDATE_ID, SECOND_CANDIDATE_ID, dossierFixture,
      conversationSummaryFixture, activeFocusFixture, candidateSnapshotFixture, receiptHandlers } from './tests/rectification-v9-test-support.ts';
    import { buildInferenceState } from './src/lib/rectification-agentic/core/build-state.ts';
    import * as realClassifier from './src/lib/rectification-agentic/v9/turn-intent-classifier.ts';
    import * as realAnswerChoice from './src/lib/rectification-agentic/v9/answer-choice.ts';
    import * as realTurnExit from './src/lib/rectification-agentic/v9/turn-exit.ts';

    const BEFORE = ['04:50', '05:10'];
    const MID = ['04:55', '05:05'];
    const AFTER = ${batchMovesRange ? "['04:55', '05:02']" : "MID"};
    let range = BEFORE;
    const prompt = '2023 年前后，有没有换过工作或职责明显变化？';
    const focus = activeFocusFixture({ intent: 'distinguish_candidates', questionId: 'd10:career:2023', askedTurnId: TURN_ID,
      expectedAnswerSchema: { prompt, probe_id: 'probe:career:2023', choice: { prompt,
        option_a: '明确发生且时间吻合', option_b: '发生过但程度较弱', option_c: '没有这回事', option_d: '这段记不清楚',
        options: [
        { key: 'A', label: '明确发生且时间吻合', answer_class: 'yes' },
        { key: 'B', label: '发生过但程度较弱', answer_class: 'weak_yes' },
        { key: 'C', label: '没有这回事', answer_class: 'no' },
        { key: 'D', label: '这段记不清楚', answer_class: 'unsure' },
      ] } } });
    const inference = (credible) => ({ ...buildInferenceState({ range_start: '04:50', range_end: '05:10',
      candidates: [{ id: CANDIDATE_ID, time: '05:02', relative_support: 58 }, { id: SECOND_CANDIDATE_ID, time: '04:55', relative_support: 42 }],
      events: [], probes: [] }), credible_range: credible });
    const dossier = () => dossierFixture({
      latestResult: candidateSnapshotFixture({ representativeTime: '05:02', decisionReceipt: { inference_state: inference(range) } }),
      conversationSummary: conversationSummaryFixture({ activeFocus: focus }) });
    const calls = [];
    const accounting = { rpc: async (fn, args = {}) => {
      calls.push({ fn, args });
      let data;
      if (fn === 'get_agentic_rectification_case') data = { ...dossierFixture().case, session_id: SESSION_ID, status: 'collecting_evidence' };
      else if (fn === 'get_agentic_rectification_case_dossier') data = dossier();
      else if (fn === 'append_agentic_rectification_turn') data = { turn_id: TURN_ID, should_execute: true, status: 'pending', idempotent: false };
      else if (fn === 'finalize_agentic_rectification_turn') data = { turn_id: TURN_ID, status: 'completed', idempotent: false };
      else if (receiptHandlers[fn]) data = await receiptHandlers[fn](fn, args);
      else data = null;
      return { data: structuredClone(data), error: null };
    }, from: () => { throw new Error('no table access expected'); } };

    const choiceCalls = [];
    mock.module('server-only', { namedExports: {} });
    mock.module('@/lib/supabase/server', { namedExports: { createServerSupabaseClient: async () => ({
      auth: { getUser: async () => ({ data: { user: { id: USER_ID } }, error: null }) },
      from: () => ({ select() { return this; }, eq() { return this; },
        maybeSingle: async () => ({ data: { id: SESSION_ID, session_type: 'birth_time_rectification',
          agentic_rectification_case_id: CASE_ID, model_id: 'synthetic', model_config_version: 1 }, error: null }) })
    }) } });
    mock.module('@/lib/supabase/admin', { namedExports: { createAdminSupabaseClient: () => accounting } });
    mock.module('@/lib/product-access', { namedExports: { isProductEnabled: async () => true } });
    mock.module('@/lib/feature-flags', { namedExports: { loadRuntimeFeatureFlags: async () => new Map([
      ['rectification_runtime_version', { enabled: true }]
    ]) } });
    mock.module('@/lib/model-catalog', { namedExports: { resolveSessionLanguageModel: async () => ({
      id: 'synthetic', configVersion: 1, model: {}
    }) } });
    mock.module('@/lib/rectification-agentic/v9/agent-route-billing', { namedExports: {
      rectificationBillingRequestId: async () => 'rectification:case:' + CASE_ID,
      createRectificationRunBilling: () => ({ reserve: async () => ({ success: true, status: 200 }), complete: async () => true, release: async () => true }),
    } });
    mock.module('@/lib/rectification-agentic/v9/turn-intent-classifier', { namedExports: {
      ...realClassifier,
      classifyTurnIntentWithRetry: async () => ({
        classified: { intent: 'answer_current_focus', answer_class: 'yes', has_new_dated_event: true },
        expectedWrite: 'evidence', outcome: 'classified',
        diagnostic: { outcome: 'classified', attempts: 1, timedOutAttempts: 0, elapsedMs: 5 },
      }),
    } });
    mock.module('@/lib/rectification-agentic/v9/answer-choice', { namedExports: {
      ...realAnswerChoice,
      applyRectificationChoice: async (choiceAccounting, command) => {
        choiceCalls.push({ optionId: command.optionId, deferFollowup: command.deferFollowup });
        // The real path persists the answered probe through this RPC, which
        // also drops the request-scoped dossier cache.
        await choiceAccounting.rpc('append_agentic_rectification_inference_transition', { p_user_id: USER_ID, p_case_id: CASE_ID });
        range = MID;
        return { narration: '已记录，范围收到 04:55–05:05。', turnId: null };
      },
      persistNextInterviewIfIdle: async () => ({ persisted: false, choiceReady: false, hostNarration: null, focusActive: true }),
    } });
    mock.module('@/lib/rectification-agentic/v9/turn-exit', { namedExports: {
      ...realTurnExit,
      finalizeSuccessfulTurnExit: async () => {},
    } });
    const chunks = [
      { type: 'start' },
      { type: 'tool-call', payload: { toolName: 'rectification-read-case', args: { caseId: CASE_ID } } },
      { type: 'tool-result', payload: { toolName: 'rectification-read-case' } },
      { type: 'tool-call', payload: { toolName: 'rectification-record-evidence-batch', args: { caseId: CASE_ID } } },
      { type: 'tool-result', payload: { toolName: 'rectification-record-evidence-batch', result: {
        items: [{ index: 0, outcome: 'accepted' }], accepted_count: 1, rescore: { status: 'completed' },
        accepted_recaps: [{ display_date_label: '2023 年 3 月', event_phrase: '换了工作' }] } } },
      { type: 'text-delta', payload: { text: '记下了：2023 年 3 月换了工作。' } },
      { type: 'finish' },
    ];
    mock.module('@/mastra/agentic-rectification', { namedExports: { getRectificationV9Agent: () => ({
      getSkill: async (name) => ({ name, instructions: 'skill' }),
      stream: async () => ({
        fullStream: (async function* () {
          for (const item of chunks) {
            if (item.type === 'tool-result' && item.payload.toolName === 'rectification-record-evidence-batch') range = AFTER;
            yield item;
          }
        })(),
        totalUsage: Promise.resolve({ inputTokens: 10, outputTokens: 20 }),
      }),
    }) } });

    const { POST } = await import(pathToFileURL(process.cwd() + '/src/app/api/rectification/agent/route.ts').href);
    const response = await POST(new Request('https://example.invalid/api/rectification/agent', {
      method: 'POST', headers: { 'content-type': 'application/json' },
      body: JSON.stringify({ caseId: CASE_ID, sessionId: SESSION_ID, requestId: TURN_ID, action: 'message',
        message: '有，2023 年 3 月换了工作' })
    }));
    assert.equal(response.status, 200);
    const events = (await response.text()).trim().split('\n').filter(Boolean).map((line) => JSON.parse(line));
    assert.deepEqual(choiceCalls, [{ optionId: 'A', deferFollowup: true }]);
    const finalize = calls.filter((call) => call.fn === 'finalize_agentic_rectification_turn').at(-1);
    const persisted = String(finalize?.args.p_assistant_message ?? '');
    let shown = '';
    for (const event of events) {
      if (event.type !== 'answer.delta') continue;
      shown = event.replace === true ? event.text : shown + event.text;
    }
    console.log(JSON.stringify({ persisted, shown, types: events.map((event) => event.type) }));
  `;
}

function runRoute(batchMovesRange: boolean) {
  const result = spawnSync(process.execPath, ["--experimental-test-module-mocks", "--import", "tsx", "--input-type=module", "--eval", routeScript(batchMovesRange)], {
    cwd: fileURLToPath(new URL("../", import.meta.url)), encoding: "utf8", timeout: 60_000,
  });
  assert.equal(result.status, 0, result.stderr + result.stdout);
  const line = result.stdout.trim().split("\n").filter((row) => row.startsWith("{\"persisted\"")).at(-1);
  assert.ok(line, result.stdout);
  return JSON.parse(line) as { persisted: string; shown: string; types: string[] };
}

test("BUG-1058: a typed choice answer with a dated event persists one server range sentence for the answer's range change", () => {
  const { persisted, shown } = runRoute(false);
  assert.equal(persisted, "记下了：2023 年 3 月换了工作。范围从 04:50–05:10 变为 04:55–05:05。");
  assert.equal((persisted.match(/范围从/g) ?? []).length, 1);
  assert.equal(shown, persisted);
});

test("BUG-1058: when the dated event moves the range again, the one sentence spans answer and event", () => {
  const { persisted, shown } = runRoute(true);
  assert.equal(persisted, "记下了：2023 年 3 月换了工作。范围从 04:50–05:10 变为 04:55–05:02。");
  assert.equal((persisted.match(/范围/g) ?? []).length, 1);
  assert.equal(shown, persisted);
});