// ==UserScript==
// @name         中通快递 - 导出寄出快递记录
// @namespace    http://tampermonkey.net/
// @version      4.0
// @description  采集寄出快递列表，导出CSV（运单号文本格式，Excel不丢位数）
// @author       Codex
// @match        https://www.zto.com/myExpress
// @match        https://www.zto.com/myExpress*
// @icon         https://www.zto.com/favicon.ico
// @grant        GM_download
// @grant        GM_addStyle
// @license      MIT
// ==/UserScript==

(function () {
  "use strict";

  /* ===========================================================
   *  配置：文件名、翻页延时等
   * =========================================================== */
  var CONFIG = {
    MIN_DELAY: 300,        // 翻页最小延时(ms)
    MAX_DELAY: 800,        // 翻页最大延时(ms)
    RENDER_TIMEOUT: 10000, // 等待列表渲染超时(ms)
    FILE_NAME: "运单数据.csv",
  };

  /* ===========================================================
   *  日期工具
   * =========================================================== */
  function pad2(n) { return n < 10 ? "0" + n : "" + n; }
  function fmtDate(d) {
    return d.getFullYear() + "-" + pad2(d.getMonth() + 1) + "-" + pad2(d.getDate());
  }
  function today()     { var d = new Date(); return d; }
  function yesterday() { var d = new Date(); d.setDate(d.getDate() - 1); return d; }
  function dayBefore() { var d = new Date(); d.setDate(d.getDate() - 2); return d; }

  /** 把日期字符串／Date 转为当天 00:00:00 的 Date */
  function toStartDate(str) {
    if (str instanceof Date) return new Date(str.getFullYear(), str.getMonth(), str.getDate());
    var p = str.split("-");
    return new Date(parseInt(p[0],10), parseInt(p[1],10) - 1, parseInt(p[2],10));
  }
  /** 把日期字符串／Date 转为当天 23:59:59.999 的 Date */
  function toEndDate(str) {
    if (str instanceof Date) return new Date(str.getFullYear(), str.getMonth(), str.getDate(), 23,59,59,999);
    var p = str.split("-");
    return new Date(parseInt(p[0],10), parseInt(p[1],10) - 1, parseInt(p[2],10), 23,59,59,999);
  }

  /* 快捷预设 */
  var PRESETS = [
    { label: "今天",   fn: function() { var d = today();    return { start: d, end: d }; } },
    { label: "昨天",   fn: function() { var d = yesterday(); return { start: d, end: d }; } },
    { label: "前天",   fn: function() { var d = dayBefore(); return { start: d, end: d }; } },
    { label: "近2天",  fn: function() { var s = new Date(); s.setDate(s.getDate() - 1); return { start: s, end: today() }; } },
    { label: "近7天",  fn: function() { var s = new Date(); s.setDate(s.getDate() - 6); return { start: s, end: today() }; } },
    { label: "近30天", fn: function() { var s = new Date(); s.setDate(s.getDate() - 29); return { start: s, end: today() }; } },
  ];

  /* ===========================================================
   *  注入样式（悬浮按钮、进度浮窗、日期面板）
   * =========================================================== */
  GM_addStyle(
    "#zto-export-btn{" +
      "position:fixed;z-index:99999;" +
      "bottom:120px;right:20px;" +
      "padding:12px 20px;" +
      "background:#ff6a00;color:#fff;" +
      "border:none;border-radius:8px;" +
      "font-size:15px;font-weight:600;" +
      "cursor:pointer;" +
      "box-shadow:0 4px 16px rgba(255,106,0,.35);" +
      "transition:transform .15s,box-shadow .15s;" +
      "white-space:nowrap;user-select:none" +
    "}" +
    "#zto-export-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(255,106,0,.45)}" +
    "#zto-export-btn.is-running{background:#999;cursor:not-allowed;box-shadow:0 2px 8px rgba(0,0,0,.2)}" +
    "#zto-export-progress{" +
      "position:fixed;z-index:99999;" +
      "bottom:175px;right:20px;" +
      "background:rgba(0,0,0,.75);color:#fff;" +
      "padding:10px 16px;border-radius:6px;" +
      "font-size:13px;line-height:1.6;" +
      "min-width:180px;text-align:center;" +
      "display:none;pointer-events:none" +
    "}" +
    "#zto-export-progress.show{display:block}" +
    "#zto-date-panel{position:fixed;z-index:100000;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.35);display:none;align-items:center;justify-content:center}" +
    "#zto-date-panel.show{display:flex}" +
    "#zto-date-panel .panel-box{background:#fff;border-radius:12px;padding:28px 32px 24px;width:420px;max-width:90vw;box-shadow:0 8px 32px rgba(0,0,0,.25)}" +
    "#zto-date-panel .panel-title{font-size:17px;font-weight:700;margin-bottom:16px;color:#333;text-align:center}" +
    "#zto-date-panel .preset-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px;justify-content:center}" +
    "#zto-date-panel .preset-btn{padding:6px 14px;border:1px solid #ddd;border-radius:6px;background:#f7f7f7;cursor:pointer;font-size:13px;color:#555;transition:all .15s}" +
    "#zto-date-panel .preset-btn:hover{border-color:#ff6a00;color:#ff6a00}" +
    "#zto-date-panel .preset-btn.active{background:#ff6a00;color:#fff;border-color:#ff6a00}" +
    "#zto-date-panel .custom-row{display:flex;align-items:center;gap:10px;justify-content:center;margin-bottom:18px}" +
    "#zto-date-panel .custom-row label{font-size:13px;color:#666}" +
    "#zto-date-panel .custom-row input[type=date]{padding:6px 10px;border:1px solid #ddd;border-radius:6px;font-size:14px;color:#333;outline:none}" +
    "#zto-date-panel .custom-row input[type=date]:focus{border-color:#ff6a00}" +
    "#zto-date-panel .action-row{display:flex;gap:12px;justify-content:center}" +
    "#zto-date-panel .action-row button{padding:8px 28px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;border:none;transition:all .15s}" +
    "#zto-date-panel .btn-cancel{background:#f0f0f0;color:#666}" +
    "#zto-date-panel .btn-cancel:hover{background:#e0e0e0}" +
    "#zto-date-panel .btn-confirm{background:#ff6a00;color:#fff}" +
    "#zto-date-panel .btn-confirm:hover{background:#e65c00}"
  );

  /* ===========================================================
   *  通用工具
   * =========================================================== */
  function sleep(ms) { return new Promise(function(r) { setTimeout(r, ms); }); }

  function randomDelay() {
    return sleep(CONFIG.MIN_DELAY + Math.random() * (CONFIG.MAX_DELAY - CONFIG.MIN_DELAY));
  }

  /** 获取列表第一条运单号，作为"指纹"判断列表是否已刷新 */
  function getListFingerprint() {
    var items = document.querySelectorAll(".order-list > .order-item-bg");
    if (items.length === 0) return null;
    var code = items[0].querySelector(".item-header .bill-code");
    return code ? code.textContent.trim() : null;
  }

  /** 等待列表渲染（出现任意 .order-item-bg 即可） */
  async function waitForList(timeoutMs) {
    var deadline = Date.now() + timeoutMs;
    while (Date.now() < deadline) {
      if (document.querySelectorAll(".order-list > .order-item-bg").length > 0) return true;
      await sleep(200);
    }
    return false;
  }

  /** 判断翻页按钮「下一页」是否已禁用（末端） */
  function isNextDisabled() {
    var btn = document.querySelector(".pagination-cont .btn-next");
    if (!btn) return true;
    return btn.classList.contains("is-disabled") ||
           btn.getAttribute("aria-disabled") === "true" ||
           btn.disabled;
  }

  /** 跳转到指定页码 */
  async function goToPage(pageNum) {
    var allPages = document.querySelectorAll(".pagination-cont .number");
    for (var i = 0; i < allPages.length; i++) {
      if (allPages[i].textContent.trim() === String(pageNum)) {
        if (allPages[i].classList.contains("is-active")) return true;
        allPages[i].click();
        await sleep(600);
        return true;
      }
    }
    return false;
  }

  /** 获取当前页码 */
  function getCurrentPage() {
    var active = document.querySelector(".pagination-cont .number.is-active");
    return active ? parseInt(active.textContent.trim(), 10) : 1;
  }

  /** 解析页面上的下单时间字符串 → Date 对象 */
  function parseOrderTime(str) {
    if (!str) return null;
    var parts = str.split(" ");
    if (parts.length !== 2) return null;
    var d = parts[0].split("-"), t = parts[1].split(":");
    if (d.length !== 3 || t.length !== 3) return null;
    return new Date(
      parseInt(d[0],10), parseInt(d[1],10)-1, parseInt(d[2],10),
      parseInt(t[0],10), parseInt(t[1],10), parseInt(t[2],10)
    );
  }

  /* ===========================================================
   *  数据提取（从当前页 DOM 读取）
   * =========================================================== */
  function extractPageData() {
    var items = document.querySelectorAll(".order-list > .order-item-bg");
    var pageData = [];

    for (var i = 0; i < items.length; i++) {
      try {
        var item = items[i];
        var billCodeEl = item.querySelector(".item-header .bill-code");
        var headerTimeEl = item.querySelector(".item-header .header-time");

        // ---- 运单号 ----
        var waybillNo = "";
        if (billCodeEl) waybillNo = billCodeEl.textContent.trim().replace(/^运单号[：:]\s*/, "").trim();

        // ---- 下单时间 ----
        var orderTime = "";
        if (headerTimeEl) orderTime = headerTimeEl.textContent.trim().replace(/^下单时间[：:]\s*/, "").trim();

        // ---- 寄件/收件信息 ----
        var body = item.querySelector(".item-body");
        var senderCity = "", senderName = "", status = "";
        var receiverCity = "", receiverName = "";

        if (body) {
          var left   = body.querySelector(".left");
          var center = body.querySelector(".center");
          var right  = body.querySelector(".right");

          if (left) {
            var c1 = left.querySelector(".city"), n1 = left.querySelector(".name");
            if (c1) senderCity = c1.textContent.trim();
            if (n1) senderName = n1.textContent.trim();
          }
          if (center) {
            var s = center.querySelector(".bill-status");
            if (s) status = s.textContent.trim();
          }
          if (right) {
            var c2 = right.querySelector(".city"), n2 = right.querySelector(".name");
            if (c2) receiverCity = c2.textContent.trim();
            if (n2) receiverName = n2.textContent.trim();
          }
        }

        if (!waybillNo) continue;  // 跳过无运单号的无效行

        pageData.push({
          运单号: waybillNo,
          寄件下单时间: orderTime,
          收件人姓名: receiverName,
          收件手机号: "",
          收件详细地址: "",
          包裹始发地: senderCity,
          目的地: receiverCity,
          物流当前状态: status,
          签收时间: "",
          派送员信息: "",
          寄件人: senderName,
          _orderDate: parseOrderTime(orderTime), // 客户端过滤用
        });
      } catch(e) {
        console.warn("[中通导出] 跳过异常条目:", e);
      }
    }
    return pageData;
  }

  /* ===========================================================
   *  翻页采集 + 客户端日期过滤 + 提前截断
   *
   *  列表按时间倒序排列（最新在前），
   *  一旦某页最旧记录 < 选中日期下限 ⇒ 后续只会更旧 ⇒ 立即中止
   * =========================================================== */
  async function collectAllPages(progressEl, range) {
    var allData = [];
    var seen = {};            // 运单号去重
    var page = 1;

    // 规范化日期范围
    var rangeMin = null, rangeMax = null;
    if (range) {
      rangeMin = toStartDate(range.start); // 下限 00:00
      rangeMax = toEndDate(range.end);     // 上限 23:59
    }

    function updateProgress() {
      progressEl.textContent = "📦 第 " + page + " 页  |  已采集 " + allData.length + " 条";
    }

    // 先确保在第 1 页
    if (getCurrentPage() !== 1) {
      progressEl.textContent = "⏳ 回到第 1 页…";
      await goToPage(1);
      await sleep(500);
      await waitForList(CONFIG.RENDER_TIMEOUT);
    }

    while (true) {
      // 等待当前页列表渲染
      var ready = await waitForList(CONFIG.RENDER_TIMEOUT);
      if (!ready) {
        console.warn("[中通导出] 第 " + page + " 页未渲染");
        alert("⚠️ 第 " + page + " 页加载失败，请检查页面后继续");
        break;
      }

      // 校验页码，如果不对就跳转
      var actualPage = getCurrentPage();
      if (actualPage !== page) {
        console.warn("[中通导出] 页码不匹配：" + page + " vs " + actualPage);
        var jumped = await goToPage(page);
        if (jumped) await sleep(500);
        ready = await waitForList(CONFIG.RENDER_TIMEOUT);
        if (!ready) break;
      }

      // 稍等让 DOM 稳定
      await sleep(400);

      // 提取本页数据
      var pageRecords = extractPageData();
      var filteredPage = [];
      var minDateThisPage = null;  // 本页最旧日期，用于截断判断

      for (var r = 0; r < pageRecords.length; r++) {
        var rec = pageRecords[r];
        if (seen[rec.运单号]) continue;   // 去重
        seen[rec.运单号] = true;

        var d = rec._orderDate;

        // 追踪本页最旧日期
        if (d && (!minDateThisPage || d < minDateThisPage)) {
          minDateThisPage = d;
        }

        // 客户端日期过滤
        if (!rangeMin && !rangeMax) {
          // 无范围限制，全部纳入
          filteredPage.push(rec);
        } else if (rangeMin && rangeMax && d) {
          if (d >= rangeMin && d <= rangeMax) {
            filteredPage.push(rec);
          }
        }
      }

      // 将本页有效数据加入最终结果
      for (var f = 0; f < filteredPage.length; f++) {
        allData.push(filteredPage[f]);
      }
      updateProgress();

      // ★ 提前截断：如果本页最旧记录已小于范围下限，停止翻页
      if (rangeMin && minDateThisPage && minDateThisPage < rangeMin) {
        console.log("[中通导出] 第 " + page + " 页出现 < " + fmtDate(rangeMin) + " 的旧数据，中断翻页");
        break;
      }

      // 翻页末端检查
      if (isNextDisabled()) break;

      var nextBtn = document.querySelector(".pagination-cont .btn-next");
      if (!nextBtn) { alert("⚠️ 未找到翻页按钮"); break; }

      await randomDelay();
      nextBtn.click();
      page++;
    }

    // 移除内部过滤字段
    for (var i = 0; i < allData.length; i++) delete allData[i]._orderDate;

    return allData;
  }

  /* ===========================================================
   *  CSV 导出
   *
  *  重点：
  *  1. UTF-8 BOM（\uFEFF），Excel 直接打开不乱码
  *  2. 所有字段强制双引号包裹
  *  3. 运单号等12位以上纯数字用 Excel 公式 ="" 包裹，彻底避免科学计数法
  *  4. 字段内的双引号转义为 ""
  * =========================================================== */
 function exportCSV(data) {
   if (data.length === 0) { alert("⚠️ 没有采集到任何快递数据"); return; }

    /* ---- 1. 定义表头（控制输出列的顺序） ---- */
    var fields = [
      "运单号",
      "寄件下单时间",
      "收件人姓名",
      "收件手机号",
      "收件详细地址",
      "包裹始发地",
      "目的地",
      "物流当前状态",
      "签收时间",
      "派送员信息",
      "寄件人",
    ];

   /**
    * CSV 字段转义函数。
    * - 双引号 → ""
    * - 整个字段用双引号包裹
    * - 如果字段是 12 位以上纯数字（如运单号），用 Excel 公式 ="" 包裹，
    *   Excel 按文本公式解析，绝不会转科学计数法，也不会显示多余字符
    */
   function csvField(val) {
     if (val == null) return '""';
     var s = String(val);


     // 双引号转义
     s = s.replace(/"/g, '""');

     // ★ 12位以上纯数字 → 用 Excel 公式 ="" 包裹
     //   ="" 是 Excel 文本公式，显示结果无多余字符，绝不转科学计数法
      if (/^\d{12,}$/.test(s)) {
        return '="' + s + '"';
      }

      // 其他字段：整个用双引号包裹
      return '"' + s + '"';
   }

    /* ---- 2. 组装 CSV ---- */
    // 表头行
    var header = fields.map(function(f) { return csvField(f); }).join(",");

    // 数据行
    var rows = [];
    for (var i = 0; i < data.length; i++) {
      var row = fields.map(function(f) {
        return csvField(data[i][f]);
      });
      rows.push(row.join(","));
    }

    // UTF-8 BOM + CSV 正文
    var bom = "\uFEFF";
    var csv = bom + header + "\n" + rows.join("\n");

    var blob = new Blob([csv], { type: "text/csv;charset=utf-8;" });

    /* ---- 3. 下载 ---- */
    if (typeof GM_download !== "undefined") {
      // Tampermonkey / ScriptCat
      GM_download({
        url: URL.createObjectURL(blob),
        name: CONFIG.FILE_NAME,
        saveAs: true,
      });
    } else {
      // 降级：创建 <a> 标签触发下载
      var url = URL.createObjectURL(blob);
      var a = document.createElement("a");
      a.href = url;
      a.download = CONFIG.FILE_NAME;
      document.body.appendChild(a);
      a.click();
      document.body.removeChild(a);
      URL.revokeObjectURL(url);
    }
  }

  /* ===========================================================
   *  主流程
   * =========================================================== */
  function main() {
    /* ---- 日期选择面板 ---- */
    var panel = document.createElement("div");
    panel.id = "zto-date-panel";
    panel.innerHTML =
      '<div class="panel-box">' +
        '<div class="panel-title">📅 选择下单时间范围</div>' +
        '<div class="preset-row" id="zto-preset-row"></div>' +
        '<div class="custom-row">' +
          '<label>自定义：</label>' +
          '<input type="date" id="zto-date-start">' +
          '<span style="color:#999"> — </span>' +
          '<input type="date" id="zto-date-end">' +
        '</div>' +
        '<div class="action-row">' +
          '<button class="btn-cancel" id="zto-date-cancel">取消</button>' +
          '<button class="btn-confirm" id="zto-date-confirm">✅ 确认并导出</button>' +
        '</div>' +
      '</div>';
    document.body.appendChild(panel);

    /* ---- 快捷预设按钮 ---- */
    var presetRow = document.getElementById("zto-preset-row");
    var presetBtns = [];
    for (var pi = 0; pi < PRESETS.length; pi++) {
      (function(p, i) {
        var btn = document.createElement("button");
        btn.className = "preset-btn";
        btn.textContent = p.label;
        btn.dataset.index = i;
        presetRow.appendChild(btn);
        presetBtns.push(btn);
      })(PRESETS[pi], pi);
    }

    /* ---- 导出按钮（右下角橙色悬浮球） ---- */
    var btn = document.createElement("button");
    btn.id = "zto-export-btn";
    btn.textContent = "📋 导出全部寄出快递";
    document.body.appendChild(btn);

    /* ---- 进度浮窗 ---- */
    var progress = document.createElement("div");
    progress.id = "zto-export-progress";
    document.body.appendChild(progress);

    /* ---- 状态 ---- */
    var selectedRange = null; // { start: Date, end: Date }

    /* ---- 预设按钮交互 ---- */
    for (var bi = 0; bi < presetBtns.length; bi++) {
      (function(pbtn) {
        pbtn.addEventListener("click", function() {
          for (var b = 0; b < presetBtns.length; b++) presetBtns[b].classList.remove("active");
          this.classList.add("active");
          var idx = parseInt(this.dataset.index, 10);
          selectedRange = PRESETS[idx].fn();
          document.getElementById("zto-date-start").value = fmtDate(selectedRange.start);
          document.getElementById("zto-date-end").value = fmtDate(selectedRange.end);
        });
      })(presetBtns[bi]);
    }

    /* ---- 自定义日期输入 ---- */
    var startInput = document.getElementById("zto-date-start");
    var endInput   = document.getElementById("zto-date-end");
    startInput.addEventListener("change", syncCustomRange);
    endInput.addEventListener("change", syncCustomRange);

    function syncCustomRange() {
      for (var b = 0; b < presetBtns.length; b++) presetBtns[b].classList.remove("active");
      var sv = startInput.value;
      var ev = endInput.value;
      if (sv && ev) {
        selectedRange = { start: toStartDate(sv), end: toEndDate(ev) };
      } else {
        selectedRange = null;
      }
    }

    /* ---- 面板显隐 ---- */
    function showPanel() { panel.classList.add("show"); }
    function hidePanel() { panel.classList.remove("show"); }
    document.getElementById("zto-date-cancel").addEventListener("click", hidePanel);
    panel.addEventListener("click", function(e) { if (e.target === this) hidePanel(); });

    /* ---- 点击导出 ---- */
    btn.addEventListener("click", function() {
      if (btn.classList.contains("is-running")) return;

      // 检查是否在「我寄的」视图
      var activeTab = document.querySelector(".subpage-tab-item.active");
      if (!activeTab || activeTab.textContent.trim() !== "我寄的") {
        alert('⚠️ 当前不是"我寄的"视图\n请先点击页面上方的"我寄的"标签。');
        return;
      }

      // 重置选择状态
      selectedRange = null;
      for (var b = 0; b < presetBtns.length; b++) presetBtns[b].classList.remove("active");
      startInput.value = "";
      endInput.value = "";

      showPanel();
    });

    /* ---- 确认并导出 ---- */
    document.getElementById("zto-date-confirm").addEventListener("click", async function() {
      if (!selectedRange) { alert("⚠️ 请先选择时间范围"); return; }
      hidePanel();

      btn.classList.add("is-running");
      progress.classList.add("show");

      try {
        progress.textContent = "📦 采集数据（不修改页面日期）…";
        btn.textContent = "⏳ 采集中…";

        var allData = await collectAllPages(progress, selectedRange);

        progress.textContent = "✅ 共 " + allData.length + " 条";
        btn.textContent = "✅ 导出完成";
        exportCSV(allData);
      } catch(err) {
        console.error("[中通导出] 采集失败:", err);
        progress.textContent = "❌ 出错，查看控制台(F12)";
        alert("❌ 采集失败，请查看浏览器控制台(F12)获取详情。");
      } finally {
        setTimeout(function() {
          btn.classList.remove("is-running");
          btn.textContent = "📋 导出全部寄出快递";
          progress.classList.remove("show");
        }, 5000);
      }
    });

    console.log("[中通导出] v4.0 加载完成 — csvField() 处理长数字+全字段引号包裹");
  }

  /* ---- 启动 ---- */
  if (document.readyState === "loading") {
    document.addEventListener("DOMContentLoaded", main);
  } else {
    main();
  }
})();