// ==UserScript==
// @name         Bilibili 账号已注销修正
// @name:zh-CN   Bilibili 账号已注销修正
// @namespace    http://tampermonkey.net/
// @version      2.7.4
// @license      MIT
// @description  修正Bilibili 账户已注销的主页链接，修改为 https://www.bilibili.com/list/$UID
// @description:zh-CN  修正Bilibili 账户已注销的主页链接，修改为 https://www.bilibili.com/list/$UID
// @author       Kaesinol
// @match        https://*.bilibili.com/*
// @grant        none
// @run-at       document-end
// @icon         https://www.gstatic.com/android/keyboard/emojikitchen/20220506/u1f47b/u1f47b_u1f5d1-ufe0f.png
// ==/UserScript==

(function () {
  "use strict";

  function processLinks() {
    const rules = {
      "space.bilibili.com/\\d+/favlist": {
        query: "div.bili-video-card__subtitle a",
      },
      "space.bilibili.com/\\d+/relation/*": {
        query: "a.relation-card-info__uname",
      },
      "www.bilibili.com/(video|list)/": {
        type: "intercept",
        query: [
          ".up-detail-top a",
          "a.staff-name",
          "div.basic-desc-info a.mention-user",
        ],
      },
      "search.bilibili.com": {
        query: ".bili-video-card__info--owner",
      },
      "www.bilibili.com/opus/\\d+": {
        type: "override",
        query: ".opus-module-author:not([data-processed])",
      },
    };

    Object.entries(rules).forEach(([host, { query, type }]) => {
      if (RegExp(host).test(location.href)) {
        const queries = Array.isArray(query) ? query : [query];
        queries.forEach((q) => {
          document.querySelectorAll(q).forEach((el) => {
            handleElement(el, type);
          });
        });
      }
    });
  }

  function uidToShortId(n) {
    n = BigInt(n);
    const chars =
      "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-";
    let res = "";
    while (n > 0n) {
      res = chars[Number(n % 64n)] + res;
      n /= 64n;
    }
    return res || "A";
  }

  function handleElement(tag, type = "normal") {
    let text = null;
    let regular = true;

    if (
      ["space.bilibili.com", "search.bilibili.com", "bilibili.com/opus"].some(
        (prefix) => (location.hostname + location.pathname).includes(prefix),
      )
    ) {
      text = tag.textContent.split(" ").filter((s) => s.trim() !== "")[0];
      regular = false;
    } else {
      text = tag.textContent;
    }

    const str = text.trim();

    if (str === "账号已注销" || str === "@账号已注销") {
      const match = type === "override" ? true : tag.href.match(/\/(\d+)\??/);

      tag.style.fontStyle = "italic";

      // ===== override（动态获取 uid）=====
      if (match && type === "override") {
        const uid =
          window.__INITIAL_STATE__?.detail?.basic?.uid ??
          window.__INITIAL_STATE__?.detail?.modules?.find(
            (m) => m.module_author,
          )?.module_author?.mid;

        if (!uid) return;

        makeLinkPreview(tag, `https://www.bilibili.com/list/${uid}`);

        tag.addEventListener(
          "click",
          (e) => {
            e.preventDefault();
            window.open(`https://www.bilibili.com/list/${uid}`, "_blank");
          },
          { capture: true },
        );

        tag.querySelector(".opus-module-author__name").textContent =
          str + uidToShortId(uid);

        tag.setAttribute("data-processed", "true");
        return;
      }

      // ===== 普通处理 =====
      if (match) {
        if (regular) {
          tag.textContent += uidToShortId(match[1]);
        } else {
          tag.textContent = tag.textContent.replace(
            str,
            str + uidToShortId(match[1]),
          );
        }
      }

      if (
        tag.scrollWidth > tag.clientWidth ||
        tag.scrollHeight > tag.clientHeight
      ) {
        tag.title = tag.textContent;
        if (tag.textContent.includes(" · ")) {
          tag.textContent = tag.textContent.replace(
            / · 收藏于\d+-\d+-\d+$/,
            "",
          );
        }
      }

      // ===== 跳转处理 =====
      if (match && type === "normal") {
        tag.href = `https://www.bilibili.com/list/${match[1]}`;
      } else if (match && type === "intercept") {
        makeLinkPreview(tag, `https://www.bilibili.com/list/${match[1]}`);
      }
    }
  }

  function makeLinkPreview(el, url) {
    if (el.dataset.linkPreview === "1") return;
    el.dataset.linkPreview = "1";

    const proxy = document.createElement("span");

    Object.assign(proxy.style, {
      position: "absolute",
      top: "0",
      left: "0",
      width: "100%",
      height: "100%",
      display: "block",
      cursor: "pointer",
      zIndex: "10",
    });

    if (getComputedStyle(el).position === "static") {
      el.style.position = "relative";
    }

    proxy.addEventListener("click", (e) => {
      e.preventDefault();
      e.stopPropagation();
      window.open(url, "_blank", "noopener,noreferrer");
    });

    el.appendChild(proxy);
  }

  function processCommentRenderers(elements) {
    elements.forEach((renderer) => {
      const bili = renderer.shadowRoot.querySelector("bili-comment-renderer");
      const userInfo = bili.shadowRoot.querySelector("bili-comment-user-info");
      const user = userInfo.shadowRoot.querySelector("#user-name a");

      if (user) handleElement(user);

      function processRichTextLinks(richText) {
        richText.shadowRoot
          .querySelector("bili-rich-text")
          .shadowRoot.querySelectorAll('a[data-type="mention"]')
          .forEach((a) => {
            if (a.textContent.trim() === "@账号已注销") {
              handleElement(a);
            }
          });
      }

      processRichTextLinks(bili);

      const replies = renderer.shadowRoot.querySelector(
        "bili-comment-replies-renderer",
      );

      const replyNodes = replies.shadowRoot.querySelectorAll(
        "bili-comment-reply-renderer",
      );

      replyNodes.forEach((reply) => {
        const rUser = reply.shadowRoot
          .querySelector("bili-comment-user-info")
          .shadowRoot.querySelector("#user-name a");

        if (rUser) handleElement(rUser);

        processRichTextLinks(reply);
      });

      if (!replies.shadowRoot.textContent.trim()) {
        renderer.setAttribute("data-processed", "true");
        return;
      }
    });
  }

  function processComments() {
    const startElement = document.querySelector("bili-comments");
    if (startElement && startElement.shadowRoot) {
      const allElements = startElement.shadowRoot.querySelectorAll(
        "bili-comment-thread-renderer:not([data-processed])",
      );
      processCommentRenderers(allElements);
    }
  }

  function tick() {
    processComments();
    processLinks();
  }

  // 初始执行 + 持续轮询
  tick();
  setInterval(tick, 2000);
})();