// 往"已经开着的"酒馆页面里再导入一个预设并选中（不动浏览器，不重启酒馆）。
// 用法: node attach-preset.mjs --preset "C:/Users/zed/Downloads/Reborn2.4.json" [--browser-port 8223] [--st-url 8123]
import { existsSync, readFileSync } from "node:fs";
import path from "node:path";
import { CdpSession, evaluate, sleep } from "./cdp.mjs";

const argv = process.argv.slice(2);
const arg = (name, dflt) => {
  const i = argv.indexOf("--" + name);
  return i >= 0 ? String(argv[i + 1]) : dflt;
};
const presetFile = arg("preset", "");
const browserPort = Number(arg("browser-port", "8223"));
const stHint = arg("st-url", "127.0.0.1:8123");
if (!presetFile || !existsSync(presetFile)) throw new Error("缺少 --preset");
const presetName = path.basename(presetFile, ".json");
const presetText = readFileSync(presetFile, "utf8");

const version = await (await fetch("http://127.0.0.1:" + browserPort + "/json/version")).json();
const cdp = await CdpSession.connect(version.webSocketDebuggerUrl, "browser");
const { targetInfos } = await cdp.send("Target.getTargets");
const target = targetInfos.find((t) => t.type === "page" && String(t.url).includes(stHint));
if (!target) throw new Error("没找到酒馆页面，现有 target: " + targetInfos.map((t) => t.type + " " + t.url).join(" | "));
const { sessionId } = await cdp.send("Target.attachToTarget", { targetId: target.targetId, flatten: true });
await cdp.send("Runtime.enable", {}, sessionId);
const page = { cdp, sessionId };

await evaluate(page, `(async () => {
  const input = document.getElementById("openai_preset_import_file");
  const file = new File([${JSON.stringify(presetText)}], ${JSON.stringify(presetName + ".json")}, { type: "application/json" });
  const dt = new DataTransfer();
  dt.items.add(file);
  input.files = dt.files;
  window.jQuery(input).trigger("input");
  return true;
})()`);
console.log("[attach] 已把 " + presetName + " 丢进导入框，等落盘…");

for (let i = 0; i < 120; i++) {
  const s = await evaluate(page, `(() => {
    const ctx = window.SillyTavern.getContext();
    const names = ctx.getPresetManager("openai").getPresetList().preset_names || {};
    const popup = document.querySelector(".popup-button-cancel");
    if (popup) popup.click();
    return { has: Object.keys(names).includes(${JSON.stringify(presetName)}), keys: Object.keys(names) };
  })()`);
  if (s.has) {
    const applied = await evaluate(page, `(async () => {
      const ctx = window.SillyTavern.getContext();
      const names = ctx.getPresetManager("openai").getPresetList().preset_names || {};
      const idx = names[${JSON.stringify(presetName)}];
      const jq = window.jQuery;
      ctx.chatCompletionSettings.bind_preset_to_connection = false;
      jq("#settings_preset_openai").val(String(idx)).trigger("change");
      const s = ctx.chatCompletionSettings;
      return { preset: s.preset_settings_openai, temp: s.temp_openai, maxTokens: s.openai_max_tokens, functionCalling: s.function_calling, squash: s.squash_system_messages, charName: window.SillyTavern.getContext().name2, chatLen: window.SillyTavern.getContext().chat.length };
    })()`);
    console.log("[attach] 已导入并选中: " + JSON.stringify(applied));
    cdp.close();
    process.exit(0);
  }
  await sleep(500);
}
console.log("[attach] 超时：预设没出现在列表里");
cdp.close();
process.exit(1);