import assert from "node:assert/strict";
import { readFileSync } from "node:fs";
import test from "node:test";
import { createElement, createRef } from "react";
import { renderToStaticMarkup } from "react-dom/server";

import { ChatComposer } from "../src/components/chat-composer.tsx";
import {
  appendQueuedText,
  COMPOSER_QUEUE_LABEL,
  COMPOSER_QUEUE_RECALL_LABEL,
  queuedDraftSettleAction,
} from "../src/lib/queued-draft.ts";
import { chatReplyAnnouncer } from "../src/lib/chat-reply-announcement.ts";
import { RECTIFICATION_STOPPED_NOTICE } from "../src/lib/rectification-surface-state.ts";

const page = readFileSync(new URL("../src/app/page.tsx", import.meta.url), "utf8");
const composer = readFileSync(new URL("../src/components/chat-composer.tsx", import.meta.url), "utf8");
const rectification = readFileSync(
  new URL("../src/components/rectification-agentic-chat.tsx", import.meta.url),
  "utf8",
);
const consultationRun = readFileSync(
  new URL("../src/hooks/use-consultation-run.ts", import.meta.url),
  "utf8",
);
const messageRow = readFileSync(
  new URL("../src/components/chat-message-row.tsx", import.meta.url),
  "utf8",
);
const styles = readFileSync(new URL("../src/app/globals.css", import.meta.url), "utf8");

test("queued drafts append onto one card and settle by outcome", () => {
  assert.equal(appendQueuedText("", "  先问事业  "), "先问事业");
  assert.equal(appendQueuedText("先问事业", "再问婚姻"), "先问事业\n再问婚姻");
  assert.equal(appendQueuedText("先问事业", "   "), "先问事业");
  assert.equal(queuedDraftSettleAction("completed"), "send");
  assert.equal(queuedDraftSettleAction("succeeded"), "send");
  assert.equal(queuedDraftSettleAction("stopped"), "restore");
  assert.equal(queuedDraftSettleAction("failed"), "restore");
  assert.equal(queuedDraftSettleAction("recovering"), "restore");
  assert.equal(queuedDraftSettleAction("readonly"), "restore");
});

test("generating does not disable the textarea; Enter queues instead of dropping", () => {
  assert.match(composer, /disabled=\{inputDisabled\}/);
  assert.match(composer, /queued\?: \{ text: string; onRecall: \(\) => void \}/);
  assert.match(composer, /className="composer-queue"/);
  assert.match(composer, /COMPOSER_QUEUE_LABEL/);
  assert.match(composer, /COMPOSER_QUEUE_RECALL_LABEL/);
  assert.doesNotMatch(styles, /composer-queue[\s\S]{0,400}spinner|composer-queue[\s\S]{0,400}skeleton/i);

  assert.match(
    page,
    /inputDisabled=\{sessionMessagesLoading \|\| rectificationSurfaceOpen \|\| \(!profileComplete && \(onboardingStep !== "name" \|\| !presetMessageFinished \|\| profileSaving\)\)\}/,
  );
  assert.doesNotMatch(page, /inputDisabled=\{isLoading \|\| sessionMessagesLoading \|\| cancellationPending/);
  assert.match(page, /if \(isLoading \|\| cancellationPending\) return void enqueueQueuedDraft\(composerDraftSnapshot\(\)\);/);
  assert.match(consultationRun, /queuedDraftSettleAction\(settlePhase\) === "send"/);
  assert.match(consultationRun, /function enqueueQueuedDraft/);
  assert.match(consultationRun, /composerInput\.current\?\.focus\(\)/);

  assert.match(rectification, /inputDisabled=\{readonly\}/);
  assert.doesNotMatch(
    rectification.slice(rectification.indexOf("<ChatComposer"), rectification.indexOf("onStop={stopRun}")),
    /inputDisabled=\{!canSend\}/,
  );
  assert.match(rectification, /if \(busy \|\| regeneratingMessageKey\) \{/);
  assert.match(rectification, /queued\.enqueue\(draft\)/);
});

test("a queued card renders above the live textarea", () => {
  const html = renderToStaticMarkup(createElement(ChatComposer, {
    inputRef: createRef<HTMLTextAreaElement>(),
    value: "还想再问一句",
    inputLabel: "输入你的问题",
    placeholder: "例如：未来半年是否适合换工作？",
    maxLength: 500,
    inputDisabled: false,
    submitLabel: "发送",
    submitBlocked: true,
    stopVisible: true,
    stopLabel: "停止回答",
    stopTitle: "停止回答",
    queued: { text: "先问事业", onRecall() {} },
    onSubmit() {},
    onChange() {},
    onKeyDown() {},
    onStop() {},
  }));
  assert.match(html, /composer-queue/);
  assert.match(html, new RegExp(COMPOSER_QUEUE_LABEL));
  assert.match(html, /先问事业/);
  assert.match(html, new RegExp(COMPOSER_QUEUE_RECALL_LABEL));
  assert.doesNotMatch(html, /<textarea[^>]*\sdisabled=/);
  assert.match(html, /还想再问一句/);
});

test("rectification abort settles as stopped, not a failed alert", () => {
  assert.match(rectification, /stopped: true/);
  assert.match(rectification, /failed: false,\s*stopped: true/);
  assert.doesNotMatch(rectification, /if \(raw\.trim\(\)\) setError\(RECTIFICATION_STOPPED_NOTICE\)/);
  assert.match(rectification, /stoppedNotice=\{message\.stopped \? RECTIFICATION_STOPPED_NOTICE : undefined\}/);
  assert.match(messageRow, /stoppedNotice/);
  assert.match(messageRow, /className="message-stopped-notice"/);
  assert.equal(RECTIFICATION_STOPPED_NOTICE, "已停止，已生成的内容保留；本次不会扣点。");
  assert.match(rectification, /signal: abortController\.signal/);
  const choiceFetch = rectification.slice(
    rectification.indexOf("const submitStructuredChoice"),
    rectification.indexOf("const acceptCandidate"),
  );
  assert.match(choiceFetch, /runAbort\.current = abortController/);
  assert.match(choiceFetch, /signal: abortController\.signal/);
  const adoptFetch = rectification.slice(
    rectification.indexOf("const acceptCandidate"),
    rectification.indexOf("async function copyMessage"),
  );
  assert.match(adoptFetch, /runAbort\.current = abortController/);
  assert.match(adoptFetch, /signal: abortController\.signal/);
  assert.equal(chatReplyAnnouncer("stopped"), "chat_notice_toast");
  assert.doesNotMatch(
    rectification.slice(rectification.indexOf("{error &&"), rectification.indexOf("{readonly &&")),
    /RECTIFICATION_STOPPED_NOTICE/,
  );
});