// 群聊静默窗口卡（M23）的**真实渲染**测试。
//
// 它钉住三件**呈现**的事（逻辑那一半在 CoalesceCard.tsx 的导出函数里）：
//   ① 六个字段都有中文标签 + 一句人话说明（窗口/上限/单批/陌生人/开关）；
//   ② 主人私聊**只给一行只读说明**（`ownerPrivate:"never"` 的呈现），**不给开关**；
//   ③ 越界/非整数就地报错并拦住保存（后端那道 400 仍在，只是不让主人白跑）。
//
// 跑法（与 MemoryTidyTuningCard.render.test.ts 同）：
//
//   cd frontend/web \
//     && ./node_modules/.bin/esbuild src/admin/modules/channels/coalesceCard.render.test.ts \
//          --bundle --platform=node --format=cjs \
//          --outfile=/tmp/cyrene-coalesce-card.render.test.cjs \
//     && node /tmp/cyrene-coalesce-card.render.test.cjs
//
// `tsc --noEmit` 会对本文件做类型检查，因此它只从项目内导入、不 import node:*。

import { createElement } from "react";
import { renderToStaticMarkup } from "react-dom/server";
import {
  COALESCE_FIELDS,
  COALESCE_HOT_LABEL,
  OWNER_PRIVATE_NOTE,
  CoalesceCardBody,
  draftFromView,
  parseCoalescePatch,
  type CoalesceView,
} from "./CoalesceCard";

let checks = 0;

function ok(cond: boolean, what: string): void {
  checks += 1;
  if (!cond) throw new Error(`FAILED: ${what}`);
}

function has(haystack: string, needle: string): boolean {
  return haystack.includes(needle);
}

/** fixtureView 造一份 GET 响应形状的数据（代码默认 + 一条会话覆盖）。 */
function fixtureView(overrides: Partial<CoalesceView> = {}): CoalesceView {
  return {
    path: "/data/config/coalesce.json",
    present: true,
    hot: true,
    default: {
      enabled: true,
      windowMs: 2000,
      maxWaitMs: 6000,
      maxBatchMessages: 24,
      applyToStrangers: true,
      strangerWindowMs: 2000,
    },
    patch: {},
    conversations: {
      "telegram|group:-20": {
        enabled: false,
        windowMs: 2000,
        maxWaitMs: 6000,
        maxBatchMessages: 24,
        applyToStrangers: true,
        strangerWindowMs: 2000,
      },
    },
    rules: {
      windowMs: [300, 15000],
      maxWaitMs: [300, 30000],
      maxBatchMessages: [1, 50],
      clamp: "clamp",
      flushReasons: ["quiet", "max_wait", "all_stale", "off", "stop"],
    },
    ownerPrivate: "never",
    ...overrides,
  };
}

function render(view: CoalesceView, draftOverride?: Partial<ReturnType<typeof draftFromView>>): string {
  const draft = { ...draftFromView(view), ...(draftOverride ?? {}) };
  const check = parseCoalescePatch(view, draft);
  return renderToStaticMarkup(
    createElement(CoalesceCardBody, {
      view,
      draft,
      errors: check.errors,
      busy: false,
      receipt: null,
      savedView: null,
      onDraftChange: () => undefined,
      onSave: () => undefined,
    })
  );
}

function main(): void {
  const view = fixtureView();
  const html = render(view);

  // ① 六个字段的中文标签 + 说明都在，且「主人私聊」只有说明、没有开关。
  for (const field of COALESCE_FIELDS) {
    ok(has(html, field.label), `field label missing: ${field.label}`);
    ok(has(html, field.hint), `field hint missing for ${field.key}`);
    ok(has(html, field.key), `field key not shown for ${field.key}`);
  }
  ok(has(html, OWNER_PRIVATE_NOTE), "owner-private read-only note missing");
  ok(has(html, "面板没有开关"), "owner-private note must say the panel has no switch for it");
  ok(has(html, COALESCE_HOT_LABEL), "hot label missing");
  ok(has(html, "/data/config/coalesce.json"), "config path not shown");
  ok(has(html, "telegram|group:-20"), "per-conversation override not listed");
  ok(has(html, "300–15000ms"), "window rules not shown");
  ok(has(html, "quiet"), "flush reasons not shown");

  // ② 三态补丁：只有改过的键才写；没改 ⇒ 空补丁。
  const unchanged = parseCoalescePatch(view, draftFromView(view));
  ok(Object.keys(unchanged.patch.default).length === 0, "unchanged draft must produce an empty patch");
  ok(unchanged.changed.length === 0, "unchanged draft must report no changed keys");

  const changed = parseCoalescePatch(view, { ...draftFromView(view), windowMs: "3000" });
  ok(changed.patch.default.windowMs === 3000, "changed window must land in the patch");
  ok(changed.changed.length === 1, `only the changed key may be written, got ${changed.changed.join(",")}`);

  // ③ 坏值就地报错，且补丁里不含那个键（不会把一半好一半坏的东西发出去）。
  const bad = parseCoalescePatch(view, { ...draftFromView(view), windowMs: "10", maxBatchMessages: "abc" });
  ok(bad.errors.windowMs !== undefined, "out-of-range window must be reported");
  ok(bad.errors.maxBatchMessages !== undefined, "non-numeric batch must be reported");
  ok(bad.patch.default.windowMs === undefined, "invalid window must not be sent");
  ok(bad.patch.default.maxBatchMessages === undefined, "invalid batch must not be sent");

  // 绝对上限必须 ≥ 窗口（下层规则由面板现算，不能只信后端）。
  const waitTooSmall = parseCoalescePatch(view, { ...draftFromView(view), windowMs: "5000", maxWaitMs: "3000" });
  ok(waitTooSmall.errors.maxWaitMs !== undefined, "maxWait below the window must be rejected");

  const badHtml = render(view, { windowMs: "10" });
  ok(has(badHtml, "取值范围"), "invalid draft must render an inline error");
  ok(has(badHtml, "有坏值，未提交"), "invalid draft must block the save button");

  process.stdout.write(`coalesce card render: ${checks} checks passed\n`);
}

main();