<!DOCTYPE html>
<html lang="zh-CN" class="mdui-theme-auto">

<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>sub2sing-box</title>
  <link rel="stylesheet" href="https://unpkg.com/mdui@2/mdui.css" />
  <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet" />
  <link href="https://fonts.googleapis.com/icon?family=Material+Icons+Outlined" rel="stylesheet" />
  <script src="https://unpkg.com/mdui@2/mdui.global.js"></script>
  <style>
    h3 {
      margin-top: 0;
    }

    .section {
      margin: 20px 0;
      padding: 15px;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
      background-color: rgb(var(--mdui-color-surface-container));
    }

    .section>* {
      margin-bottom: 10px;
    }

    .mdui-container {
      border-radius: 10px;
      max-width: 1200px;
      margin: 30px auto;
    }
  </style>
</head>

<body>
  <div class="mdui-container">
    <div style="
          display: flex;
          align-items: center;
          justify-content: space-between;
        ">
      <h2>
        <a href="https://github.com/nitezs/sub2sing-box" target="_blank">sub2sing-box</a>
      </h2>
      <mdui-dropdown trigger="hover">
        <mdui-icon slot="trigger" name="dark_mode"></mdui-icon>
        <mdui-menu id="theme" selects="single" value="dark">
          <mdui-menu-item value="light">亮色</mdui-menu-item>
          <mdui-menu-item value="dark">暗色</mdui-menu-item>
          <mdui-divider></mdui-divider>
          <mdui-menu-item value="auto">跟随系统</mdui-menu-item>
        </mdui-menu>
      </mdui-dropdown>
    </div>
    <!-- Template Section -->
    <div class=" section">
      <h3>模板</h3>
      <mdui-text-field label="模板" type="text" id="template" name="template" />
    </div>

    <div id="form">
      <!-- Nodes Section -->
      <div class="section">
        <h3>节点</h3>
        <div>
          <mdui-text-field label="订阅链接" autosize min-rows="3" max-rows="5" id="subscription" name="subscription"
            placeholder="一行一个"></mdui-text-field>
        </div>
        <div>
          <mdui-text-field label="节点分享链接" autosize min-rows="3" max-rows="5" id="proxy" name="proxy"
            placeholder="一行一个"></mdui-text-field>
        </div>
        <div>
          <mdui-text-field label="删除节点" type="text" id="delete" name="delete" placeholder="支持正则表达式" />
        </div>
        <div>
          <mdui-list id="list">
            <mdui-list-item>
              重命名节点
              <mdui-button slot="end-icon" type="button" onclick="addRenameField()">+
              </mdui-button>
            </mdui-list-item>
          </mdui-list>
          <div id="renameContainer"></div>
        </div>
      </div>

      <!-- Policy Group Section -->
      <div class="section">
        <h3>策略组</h3>
        <div>
          <label><mdui-checkbox type="checkbox" id="group" name="group" />启用</label>
        </div>
        <div>
          <mdui-text-field label="类型" type="text" id="group-type" name="group-type" value="selector" />
        </div>
        <div>
          <mdui-select label="排序依据" name="sort" id="sort" value="tag">
            <mdui-menu-item value="tag" selected>节点名</mdui-menu-item>
            <mdui-menu-item value="num">节点数量</mdui-menu-item>
          </mdui-select>
        </div>
        <div>
          <mdui-select label="排序方式" name="sort-type" id="sort-type" value="asc">
            <mdui-menu-item value="asc" selected>升序</mdui-menu-item>
            <mdui-menu-item value="desc">降序</mdui-menu-item>
          </mdui-select>
        </div>
      </div>

      <!-- Result Section -->
      <div class="section">
        <mdui-text-field label="生成链接" autosize min-rows="2" max-rows="5" id="output" name="output"></mdui-text-field>
      </div>
    </div>
  </div>
  <script>
    init();

    function init() {
      theme();
      listenInput();
    }

    function theme() {
      const theme = window.localStorage.getItem("theme");
      if (theme) {
        document.querySelector("html").className = "mdui-theme-" + theme;
        document.getElementById("theme").value = theme;
      } else {
        document.querySelector("html").className = "mdui-theme-auto";
        document.getElementById("theme").value = "auto";
        window.localStorage.setItem("theme", "auto");
      }
      const icon = document.getElementById("theme");
      const html = document.querySelector("html");
      icon.addEventListener("change", function (e) {
        switch (icon.value) {
          case "light":
            html.className = "mdui-theme-light";
            window.localStorage.setItem("theme", "light");
            break;
          case "dark":
            html.className = "mdui-theme-dark";
            window.localStorage.setItem("theme", "dark");
            break;
          case "auto":
            html.className = "mdui-theme-auto";
            window.localStorage.setItem("theme", "auto");
            break;
        }

      });
    }

    function encodeBase64(str) {
      return btoa(
        encodeURIComponent(str).replace(
          /%([0-9A-F]{2})/g,
          function (match, p1) {
            return String.fromCharCode("0x" + p1);
          }
        )
      )
        .replace(/\+/g, "-")
        .replace(/\//g, "_");
    }

    function decodeBase64(str) {
      return decodeURIComponent(
        Array.prototype.map
          .call(atob(str), function (c) {
            return "%" + ("00" + c.charCodeAt(0).toString(16)).slice(-2);
          })
          .join("")
      );
    }

    function listenInput() {
      const inputs = document.querySelectorAll(
        "mdui-checkbox, mdui-text-field"
      );
      for (let input of inputs) {
        input.addEventListener("input", generateLink);
      }
      const selects = document.querySelectorAll("mdui-select");
      for (let select of selects) {
        select.addEventListener("change", generateLink);
      }
    }

    function cleanLisnter() {
      const inputs = document.querySelectorAll("#form input, #form textarea");
      for (let input of inputs) {
        input.removeEventListener("input", generateLink);
      }
      const selects = document.querySelectorAll("#form select");
      for (let select of selects) {
        select.removeEventListener("change", generateLink);
      }
    }

    function addRenameField() {
      cleanLisnter();
      const container = document.getElementById("list");
      const fieldHTML = `<mdui-list-item class="rename-group">
                    <mdui-text-field slot="icon" type="text" name="rename_from[]" placeholder="支持正则表达式" label="原字符"></mdui-text-field>
                    <mdui-text-field type="text" name="rename_to[]" label="替换字符"></mdui-text-field>
                    <mdui-button slot="end-icon" type="button" class="btn btn-danger" onclick="removeThisField(this)">-</mdui-button>
                </mdui-list-item>`;
      container.insertAdjacentHTML("beforeend", fieldHTML);
      listenInput();
    }

    function removeThisField(button) {
      cleanLisnter();
      button.parentElement.remove();
      generateLink();
      listenInput();
    }

    function generateLink() {
      const subscription = document
        .getElementById("subscription")
        .value.split("\n")
        .filter((i) => i);
      const proxy = document
        .getElementById("proxy")
        .value.split("\n")
        .filter((i) => i);
      const deleteRule = document.getElementById("delete").value;
      const template = document.getElementById("template").value;
      const renameFrom = Array.from(
        document.getElementsByName("rename_from[]")
      ).map((input) => input.value);
      const renameTo = Array.from(
        document.getElementsByName("rename_to[]")
      ).map((input) => input.value);
      const output = document.getElementById("output");
      const group = document.getElementById("group").checked;
      const groupType = document.getElementById("group-type").value;
      const sort = document.getElementById("sort").value;
      const sortType = document.getElementById("sort-type").value;

      let rename = {};
      for (let i = 0; i < renameFrom.length; i++) {
        if (renameFrom[i] && renameTo[i]) {
          rename[renameFrom[i]] = renameTo[i];
        }
      }
      const data = {
        subscription,
        proxy,
        delete: deleteRule,
        template,
        rename,
        group,
        "group-type": groupType,
        sort,
        "sort-type": sortType,
      };

      output.value = `${window.location.origin}/convert?data=${encodeBase64(
        JSON.stringify(data)
      )}`;
    }
  </script>
</body>

</html>