//
// 批量下载蔚蓝档案角色图
//

// URL: https://bluearchive.fandom.com/wiki/Category:Students
// 记得先滚动页面确保所有图片加载完成

// 已经下载的图片
const isDownloaded = [
  "hoshino",
  "shiroko",
  "serika",
  "nonomi",
  "ayane",
  "makoto",
  "satsuki",
  "chiaki",
  "iroha",
  "ibuki",
  "hina",
  "ako",
  "iori",
  "chinatsu",
  "aru",
  "mutsuki",
  "kayoko",
  "haruka",
  "haruna",
  "junko",
  "izumi",
  "akari",
  "fuuka",
  "juri",
  "sena",
  "kasumi",
  "megu",
  "kirara",
  "rio",
  "yuuka",
  "noa",
  "koyuki",
  "chihiro",
  "maki",
  "hare",
  "kotama",
  "neru",
  "karin",
  "akane",
  "asuna",
  "toki",
  "hibiki",
  "utaha",
  "kotori",
  "sumire",
  "rei",
  "himari",
  "eimi",
  "alice",
  "yuzu",
  "midori",
  "momoi",
  "nagisa",
  "seia",
  "mika",
  "kazusa",
  "natsu",
  "airi",
  "yoshimi",
  "suzumi",
  "reisa",
  "tsurugi",
  "hasumi",
  "mashiro",
  "ichika",
  "mine",
  "hanae",
  "serina",
  "hifumi",
  "azusa",
  "koharu",
  "hanako",
  "ui",
  "shimiko",
  "sakurako",
  "mari",
  "hinata",
  "niya",
  "kaho",
  "chise",
  "tsubaki",
  "mimori",
  "kaede",
  "nagusa",
  "renge",
  "kikyou",
  "yukari",
  "shizuko",
  "pina",
  "umika",
  "michiru",
  "izuna",
  "tsukuyo",
  "wakamo",
  "kisaki",
  "mina",
  "shun",
  "kokona",
  "saya",
  "rumi",
  "reijo",
  "cherino",
  "tomoe",
  "marina",
  "minori",
  "meru",
  "momiji",
  "nodoka",
  "shigure",
  "kanna",
  "kirino",
  "fubuki",
  "miyako",
  "saki",
  "miyu",
  "moe",
  "saori",
  "misaki",
  "hiyori",
  "atsuko",
  "hikari",
  "nozomi",
  "aoba",
  "miku",
  "misaka-mikoto",
  "shokuhou-misaki",
  "saten-ruiko"
];

// 清洗链接
function cleanImageUrl(url) {
  // 使用正则表达式匹配并提取需要的部分
  const cleanedUrl = url.replace(/(\/scale-to-width-down\/\d+\?.*)$/, '');
  return cleanedUrl;
}

// 生成图片名称
function generateImageName(url) {
  // 提取文件名部分
  const fileNameMatch = url.match(/\/([^\/]+)\.png/);
  if (fileNameMatch && fileNameMatch[1]) {
    // 转换为小写并替换下划线为短横线
    return fileNameMatch[1].toLowerCase().replace("_icon", "").replace(/_/g, "-");
  }
  return null;
}

const images = Array.from(document.querySelectorAll(".wds-tab__content.wds-is-current table.article-table.sortable.jquery-tablesorter td:first-child img")).map((item) => [
  cleanImageUrl(item.src),
  generateImageName(item.src)
]);

const existingNames = [];

// 有角色服装版本的图标，过滤掉即可
const filteredImages = images.filter((item) => {
  const [url, name] = item;

  // "hoshino" "hoshino-swimsuit"
  if (!name || existingNames.includes(name)) {
    return false;
  }

  const firstName = name.split("-")[0];
  if (name.includes("-") && firstName && existingNames.includes(firstName)) {
    return false;
  }

  existingNames.push(name);
  return true;
});

// https://static.wikia.nocookie.net/blue-archive/images/d/de/Hoshino_Icon.png/revision/latest/scale-to-width-down/60?cb=20221128153020

// 自动下载图片的函数
function downloadImages(imageArray) {
  let index = 0;

  const downloadImage = async () => {
    if (index >= imageArray.length) {
      console.log("所有图片下载完成！");
      return;
    }

    const [url, filename] = imageArray[index];
    console.log(`正在下载第 ${index + 1} 张图片: ${filename}.png`);

    try {
      // 使用 fetch 下载图片
      const response = await fetch(url, {
        headers: {
          "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
          "accept-encoding": "gzip, deflate, br, zstd",
        }
      });
      if (!response.ok) {
        throw new Error(`无法下载图片: ${url}`);
      }

      // 将图片数据转换为 Blob
      const blob = await response.blob();

      // 创建一个隐藏的 <a> 元素用于下载
      const a = document.createElement("a");
      const objectUrl = URL.createObjectURL(blob); // 创建 Blob 的临时 URL
      a.href = objectUrl;
      a.download = `${filename.replace("resonator-", "")}.webp`; // 指定下载的文件名
      document.body.appendChild(a);
      a.click();
      document.body.removeChild(a);

      // 释放 Blob 的临时 URL
      URL.revokeObjectURL(objectUrl);
    } catch (error) {
      console.error(`下载图片失败: ${error.message}`);
    }

    index++;
    setTimeout(downloadImage, 2000); // 每隔 2 秒下载下一张图片
  };

  downloadImage();
}

// 调用函数开始下载
downloadImages(filteredImages);