/**
 * TASK-rectification-grounding-20260927 T5 (R1, BUG-593 side path): what
 * compare and offer hand the model. Fixture: a real local engine response for
 * a public AA chart (9 candidates), AGENTS §7.4.
 *
 * - offer used to return the full projection (~100 KB): `*_pre_inference`,
 *   the contrast packet (31 KB) and the probe lists. It now gets the compare
 *   stripping.
 * - the verification Markdown is kept once (skill_verification_report);
 *   range_delivery carried a byte-identical copy.
 * - `engine_indistinguishable_width_minutes` is audit-only (BUG-593) and no
 *   longer reaches the model.
 * - batch returns the post-rescore range and whether this turn delivers.
 * The full projection used by the case API and the stored receipts is
 * unchanged.
 */
import assert from "node:assert/strict";
import { readFileSync } from "node:fs";
import test from "node:test";
import {
  CASE_ID,
  TURN_ID,
  USER_ID,
  dossierFixture,
  fakeAccounting,
  receiptHandlers,
} from "./rectification-v9-test-support.ts";
import {
  AA_EVIDENCE_ROWS,
  AA_RANGE,
  AA_TURNS,
  buildGoldenLatest,
  setFocusHandler,
  stubGoldenFetch,
} from "./rectification-grounding-support.ts";
import {
  batchRangeAfterRescore,
  createRectificationV9Tools,
  latestResultToolProjection,
  offerModelProjection,
} from "../src/mastra/rectification-v9-tools.ts";
import { parseV9CaseDossier } from "../src/lib/rectification-agentic/v9/tool-service.ts";
import { decideFromDossier } from "../src/lib/rectification-agentic/v9/decision-from-dossier.ts";

const bytes = (value: unknown) => Buffer.byteLength(JSON.stringify(value), "utf8");

const MODEL_HIDDEN_KEYS = [
  "candidate_contrast_packet",
  "discriminating_event_probes",
  "event_clarification_probes",
  "evidence_collection_probes",
  "candidate_contrast_opportunities",
  "dasha_agreement_pre_inference",
  "representative_time_pre_inference",
  "house_table_pre_inference",
  "natal_recast_pre_inference",
  "engine_indistinguishable_width_minutes",
] as const;

function assertModelView(view: Record<string, unknown>) {
  for (const key of MODEL_HIDDEN_KEYS) assert.equal(key in view, false, key);
  const report = view.skill_verification_report as { markdown?: string } | undefined;
  assert.ok(report?.markdown && report.markdown.length > 200, "report Markdown kept once");
  const delivery = view.range_delivery as Record<string, unknown> | undefined;
  if (delivery) assert.equal("verification_markdown" in delivery, false);
  const needle = JSON.stringify(report.markdown.slice(0, 80)).slice(1, -1);
  assert.equal(JSON.stringify(view).split(needle).length - 1, 1, "Markdown appears exactly once");
  const inference = view.inference_state as { candidates?: Array<Record<string, unknown>> } | null;
  for (const candidate of inference?.candidates ?? []) {
    assert.deepEqual(Object.keys(candidate), ["time", "score", "status", "cluster_range"]);
  }
}

test("R1: offer's model view drops pre-inference, packet, probes, duplicate Markdown and engine width", async () => {
  const { latest } = await buildGoldenLatest();
  const parsed = parseV9CaseDossier(dossierFixture({ evidence: AA_EVIDENCE_ROWS, latestResult: latest, turns: AA_TURNS as never, candidateRange: AA_RANGE as never }))!;
  const decision = decideFromDossier(parsed as never);
  const full = latestResultToolProjection(parsed.latestResult as never, decision as never) as Record<string, unknown>;
  // The full projection (case API, receipts) keeps its audit fields.
  assert.ok("candidate_contrast_packet" in full);
  assert.ok("engine_indistinguishable_width_minutes" in full);
  const view = offerModelProjection({ ...full, candidate_snapshot: { is_current: true } });
  assertModelView(view);
  // Conclusion fields the delivery turn needs are still there.
  for (const key of ["candidates", "representative_time", "credible_range", "session_outcome", "can_adopt", "event_fit_rate", "range_delivery"]) {
    assert.ok(key in view, key);
  }
  console.log(JSON.stringify({ scope: "R1 offer model view", before_bytes: bytes(full), after_bytes: bytes(view) }));
  assert.ok(bytes(view) < bytes(full) / 3);
});

test("R1: compare's model view (real tool, golden engine response) keeps the Markdown once and no engine width", async () => {
  const { latest, compute } = await buildGoldenLatest();
  const restore = stubGoldenFetch();
  try {
    const accounting = fakeAccounting({
      ...receiptHandlers,
      get_agentic_rectification_case_dossier: () => dossierFixture({
        evidence: AA_EVIDENCE_ROWS,
        latestResult: latest,
        turns: AA_TURNS as never,
        candidateRange: AA_RANGE as never,
      }),
      get_agentic_rectification_case_compute: () => compute,
      set_agentic_rectification_conversation_focus: setFocusHandler,
      refresh_agentic_rectification_vedastro_validation: () => ({ result_id: latest.result_id, decision_receipt: latest.decision_receipt }),
    }, { fallback: () => null });
    const tools = createRectificationV9Tools({
      userId: USER_ID,
      caseId: CASE_ID,
      turnId: TURN_ID,
      userMessage: "2000 年拿了奖",
      accounting: accounting.client as never,
    }) as unknown as Record<string, { execute(input: unknown): Promise<Record<string, unknown>> }>;
    await tools["rectification-read-case"].execute({ caseId: CASE_ID });
    const compare = await tools["rectification-compare-candidates"].execute({ caseId: CASE_ID });
    assertModelView(compare);
    console.log(JSON.stringify({ scope: "R1 compare model view", after_bytes: bytes(compare) }));
  } finally {
    restore();
  }
});

test("T1/R3: batch range_after_rescore names the post-rescore range and whether this turn delivers", async () => {
  const { latest } = await buildGoldenLatest();
  const parsed = parseV9CaseDossier(dossierFixture({ evidence: AA_EVIDENCE_ROWS, latestResult: latest, candidateRange: AA_RANGE as never }))!;
  const decision = decideFromDossier(parsed as never);
  const withQuestion = batchRangeAfterRescore(decision as never, latest.decision_receipt, { question_id: "q" });
  assert.deepEqual(withQuestion?.credible_range, decision.credibleRange);
  assert.equal(withQuestion?.representative_time, decision.representativeTime ?? null);
  assert.equal(withQuestion?.delivers_range_this_turn, false);
  const deliverable = { ...decision, canAdopt: true, sessionOutcome: "adopt_representative" };
  assert.equal(batchRangeAfterRescore(deliverable as never, latest.decision_receipt, null)?.delivers_range_this_turn, true);
  assert.equal(batchRangeAfterRescore(null, latest.decision_receipt, null), null);
  const tools = readFileSync(new URL("../src/mastra/rectification-v9-tools.ts", import.meta.url), "utf8");
  // The receipt keeps hashing the pre-existing shape; only the returned value grows.
  const batchReceipt = tools.indexOf("executedMethods: [...rescore.executedMethods],");
  const batchReturn = tools.indexOf("range_after_rescore: rescore.rangeAfter");
  assert.ok(batchReceipt > 0 && batchReturn > batchReceipt);
  assert.match(tools.slice(batchReceipt - 120, batchReceipt), /resultFingerprint: hashResult\(projection\)/);
  assert.match(tools, /return offerModelProjection\(payload\);/);
});