import assert from "node:assert/strict";
import test from "node:test";

import {
  changedHouseNumbers,
  diffRectificationBoard,
  groupWindowTransitions,
  rectificationBoardPeekCopy,
} from "../src/lib/rectification-board-model.ts";
import { parseRectificationCandidateResult } from "../src/lib/rectification-candidate-result.ts";
import type { WindowScanTransition } from "../src/lib/rectification-agentic/v9/refinement-packet.ts";

const CANDIDATE_ID = "88888888-8888-4888-8888-888888888881";
const SECOND_CANDIDATE_ID = "88888888-8888-4888-8888-888888888882";
const THIRD_CANDIDATE_ID = "88888888-8888-4888-8888-888888888883";

function transition(layer: WindowScanTransition["layer"], at: string): WindowScanTransition {
  return { layer, at, user_meaning: `${layer} 在 ${at} 发生变化` };
}

function houses(lagna: string, seventh = lagna) {
  return Array.from({ length: 12 }, (_, index) => ({
    house: index + 1,
    sign: index === 6 ? seventh : lagna,
    occupants: index === 0 ? ["太阳"] : [],
  }));
}

function snapshot(input: Readonly<{
  time: string;
  lagna: string;
  seventh?: string;
  transitions?: readonly WindowScanTransition[];
}>) {
  return parseRectificationCandidateResult({
    resultId: "11111111-1111-4111-8111-111111111111",
    candidates: [
      { candidateId: CANDIDATE_ID, rank: 1, time: input.time, relativeSupport: 34, tiedMinuteCount: 1 },
      { candidateId: SECOND_CANDIDATE_ID, rank: 2, time: "05:08", relativeSupport: 33, tiedMinuteCount: 1 },
      { candidateId: THIRD_CANDIDATE_ID, rank: 3, time: "05:09", relativeSupport: 33, tiedMinuteCount: 1 },
    ],
    overallConfidence: "low",
    selectionAllowed: true,
    confirmationAllowed: false,
    representativeTime: input.time,
    selectedTime: null,
    selectionKind: null,
    decisionReceipt: {
      house_table: {
        time: input.time,
        lagna: input.lagna,
        houses: houses(input.lagna, input.seventh ?? input.lagna),
      },
      window_scan: {
        scanned: true,
        d9_lagna_count: 2,
        d10_lagna_count: 1,
        transitions: input.transitions ?? [],
      },
    },
  });
}

test("groups 换升时刻 by clock minute and splits scoring layers from display layers", () => {
  const grouped = groupWindowTransitions([
    transition("d11", "04:47"),
    transition("hora", "04:47"),
    transition("d24", "04:47"),
    transition("d10", "04:48"),
    transition("pranapada", "05:14"),
    transition("d9", "04:57"),
  ]);

  assert.deepEqual(grouped.map((row) => row.at), ["04:47", "04:48", "04:57", "05:14"]);
  assert.deepEqual(grouped[0], {
    at: "04:47",
    scoringLayers: ["d24", "d11"],
    displayLayers: ["hora"],
  });
  assert.deepEqual(grouped[1]?.scoringLayers, ["d10"]);
  assert.deepEqual(grouped[3], {
    at: "05:14",
    scoringLayers: [],
    displayLayers: ["pranapada"],
  });
});

test("marks only houses whose sign or occupants actually changed", () => {
  const before = snapshot({ time: "04:45", lagna: "金牛座" })?.houseTable ?? null;
  const after = snapshot({ time: "04:48", lagna: "金牛座", seventh: "天秤座" })?.houseTable ?? null;
  assert.deepEqual(changedHouseNumbers(before, after), [7]);
  assert.deepEqual(changedHouseNumbers(null, after), []);
});

test("announces the first board fill and later house or 换升 changes without dumping the table", () => {
  const first = snapshot({
    time: "04:45",
    lagna: "金牛座",
    transitions: [transition("d9", "04:57")],
  });
  const second = snapshot({
    time: "04:48",
    lagna: "金牛座",
    seventh: "天秤座",
    transitions: [transition("d9", "04:57"), transition("d10", "04:48")],
  });
  assert.ok(first && second);

  const opened = diffRectificationBoard(null, first);
  assert.equal(opened.liveMessage, "当前本命宫位已按 04:45 排出，上升金牛座。");
  assert.deepEqual(opened.houseNumbers, []);
  assert.equal(opened.timeChanged, false);

  const updated = diffRectificationBoard(first, second);
  assert.equal(updated.timeChanged, true);
  assert.deepEqual(updated.houseNumbers, [7]);
  assert.deepEqual(updated.transitionMinutes, ["04:48"]);
  assert.match(updated.liveMessage, /本命宫位已按 04:48 重算（上升 金牛座）。/);
  assert.match(updated.liveMessage, /第7宫已更新/);
  assert.match(updated.liveMessage, /换升时刻已更新/);
  assert.doesNotMatch(updated.liveMessage, /太阳|第1宫|第2宫|下面是本轮/);
});

test("peek copy stays a control label, not a second dump of the house table", () => {
  const empty = rectificationBoardPeekCopy(null);
  assert.equal(empty.title, "当前盘面");
  assert.equal(empty.detail, "补充经历后会在这里更新");

  const filled = rectificationBoardPeekCopy(snapshot({ time: "04:48", lagna: "金牛座" }));
  assert.equal(filled.title, "当前盘面");
  assert.equal(filled.detail, "04:48 · 上升金牛座");
});