// ==UserScript==
// @name         学生档案批量打印（安徽中职 zzxsgl）
// @namespace    local.batch-print-students
// @version      1.2.0
// @description  在校生档案：列表→详情→打印预览→打印→回列表（zzxsgl.ahjygl.gov.cn）·支持 iframe 内表格
// @author       you
// @match        http://zzxsgl.ahjygl.gov.cn/*
// @match        https://zzxsgl.ahjygl.gov.cn/*
// @grant        GM_setValue
// @grant        GM_getValue
// @run-at       document-idle
// ==/UserScript==

/**
 * 站点：安徽省全国中等职业学校学生管理信息系统
 *
 * URL 示意（你已提供）：
 * - 列表/查询：…/studInfoManage!… （含「查询结果」表格，非 goStuDetail）
 * - 详情：    …/studInfoManage!goStuDetail.action?xsqb.id=…
 * - 预览/打印 …/zzZxsJbxxAction!showDetail.action?…&isPrint=0 （页面按钮为「打印」）
 *
 * 脚本猫请选「脚本」。本系统常在 iframe 内嵌「查询结果」表；1.2.0 起已移除 @noframes 以便在子框架内生效。
 */

(function () {
  'use strict';

  /** @param {string} u */
  function ahIsPrintPreviewUrl(u) {
    return (
      /zzZxsJbxxAction!\s*showDetail\.action/i.test(u) &&
      /[?&]isPrint=0(?:&|$)/i.test(u)
    );
  }

  /** @param {string} u */
  function ahIsDetailUrl(u) {
    return /studInfoManage!\s*goStuDetail\.action/i.test(u);
  }

  // ==================== 配置区 ====================
  const CONFIG = {
    /** 首选：姓名列链接；还会在 collectStudentLinks 里自动叠加多套备用选择器 */
    listStudentLinkSelector: '.grid-table tbody tr td:nth-child(2) a',

    /** 可自行追加列表姓名链选择器，如 F12 Copy selector 得到的唯一路径（字符串数组） */
    extraListSelectors: [],

    isListPage() {
      const u = location.href;
      if (ahIsDetailUrl(u)) return false;
      if (/zzZxsJbxxAction!\s*showDetail\.action/i.test(u)) return false;
      if (/studInfoManage/i.test(u) && !/goStuDetail/i.test(u)) return true;

      const bodyTxt = document.body ? document.body.innerText || '' : '';
      const looksLikeStudentGrid =
        /查询结果/.test(bodyTxt) ||
        (/学籍号/.test(bodyTxt) && /姓名/.test(bodyTxt));

      return looksLikeStudentGrid && collectStudentLinks().length > 0;
    },

    /** 详情（基本信息页，右上角为「打印预览」） */
    isDetailPage() {
      return ahIsDetailUrl(location.href);
    },

    /** zzZxs 打印预览（右上角为「打印」） */
    isPrintPreviewPage() {
      return ahIsPrintPreviewUrl(location.href);
    },

    /** 详情页「打印预览」，留空则用文案查找，仅匹配「打印预览」，避免点在预览页的「打印」 */
    detailPrintPreviewSelectorCss: '',

    /**
     * 预览页右上角「打印」——留空则用文案查找（节点文本规整后等于「打印」）
     */
    printPagePrintButtonSelectorCss: '',

    /** 预览页少见的多余入口 */
    printPageExtraPrintSelector: '',

    wait: {
      domReady: 10000,
      afterNavigation: 1200,
      afterClickPreview: 1500,
      printDialogDelay: 450,
      betweenStudents: 700,
      popupPoll: 200,
    },

    /** 若在预览页未找到「打印」按钮，改为直接 window.print */
    autoPrintOnPreviewPage: true,

    closePreviewWindowAfterPrint: true,

    /**
     * 本系统通常为：点击「打印预览」后同一标签进入 zzZxsJbxx…showDetail…isPrint=0
     * 若你以后发现是新开窗口预览，改成 'popup'
     */
    previewOpenMode: 'sameTab',

    previewIframeSelector: '',
    iframePrintButtonSelector: '',

    debug: false,
  };

  const STORAGE_KEY = 'batchStudentPrint_state_v1';

  const DEFAULT_STATE = {
    running: false,
    stopRequested: false,
    listUrl: '',
    /** @type {{ href: string, text: string }[]} */
    queue: [],
    index: -1,
    phase: 'idle',
    _popupRef: null,
  };

  function log(...args) {
    if (CONFIG.debug) console.log('[批量打印]', ...args);
  }

  function loadState() {
    try {
      const raw = GM_getValue(STORAGE_KEY, null);
      if (!raw || typeof raw !== 'object') return { ...DEFAULT_STATE };
      return { ...DEFAULT_STATE, ...raw, _popupRef: null };
    } catch {
      return { ...DEFAULT_STATE };
    }
  }

  function saveState(partial) {
    const cur = loadState();
    const next = { ...cur, ...partial };
    const serializable = { ...next };
    delete serializable._popupRef;
    GM_setValue(STORAGE_KEY, serializable);
    return next;
  }

  function clearState() {
    GM_setValue(STORAGE_KEY, null);
  }

  function sleep(ms) {
    return new Promise((r) => setTimeout(r, ms));
  }

  function findClickableByText(root, text, tagNames = 'a,button,span,input') {
    const nodes = root.querySelectorAll(tagNames);
    for (const el of nodes) {
      if (el.textContent && el.textContent.trim().includes(text)) {
        return el.closest('a,button') || el;
      }
    }
    return null;
  }

  /** 预览页工具栏「打印」（排除文案中含「预览」的父级） */
  function findPrintPageToolbarPrintEl() {
    const css = (CONFIG.printPagePrintButtonSelectorCss || '').trim();
    if (css) {
      const el = document.querySelector(css);
      if (el) return el;
    }
    const nodes = document.querySelectorAll('a,button,span');
    for (const el of nodes) {
      const raw = (el.textContent || '').replace(/\u00a0/g, ' ');
      const norm = raw.replace(/\s+/g, '').trim();
      if (norm !== '打印') continue;
      const btn = el.closest('a,button') || el;
      const lbl = ((btn.textContent || '').replace(/\s+/g, ''));
      if (lbl.includes('打印预览')) continue;
      return btn;
    }
    return null;
  }

  function waitFor(predicate, timeoutMs, intervalMs = 80) {
    const start = Date.now();
    return new Promise((resolve, reject) => {
      const tick = () => {
        try {
          const v = predicate();
          if (v) return resolve(v);
        } catch (e) {
          return reject(e);
        }
        if (Date.now() - start > timeoutMs) return resolve(null);
        setTimeout(tick, intervalMs);
      };
      tick();
    });
  }

  /** @param {Node} node @returns {HTMLAnchorElement | null} */
  function unwrapAnchor(node) {
    if (node instanceof HTMLAnchorElement) return node;
    const p = node && node.closest && node.closest('a');
    return p instanceof HTMLAnchorElement ? p : null;
  }

  /** 排除表头占位，要求链接在行 tbody 内 */
  function anchorInDataRow(a) {
    const tr = a.closest('tr');
    if (!tr || !tr.closest || !tr.closest('tbody')) return false;
    return true;
  }

  function collectStudentLinks() {
    const extra = Array.isArray(CONFIG.extraListSelectors)
      ? CONFIG.extraListSelectors.filter(Boolean)
      : [];
    const primary = (CONFIG.listStudentLinkSelector || '').trim();
    /** @type {string[]} */
    const selectors = [
      ...extra,
      primary,
      '.grid-table tbody tr td:nth-child(2) a',
      '.ui-jqgrid-btable tbody tr td:nth-child(2) a',
      'table.datagrid-btable tbody tr td:nth-child(2) a',
      '.datagrid-view tbody tr td:nth-child(2) a',
      'table tbody tr td:nth-child(2) a',
      'tbody tr td:nth-child(2) a',
      'a[href*="goStuDetail.action"]',
      'a[href*="goStuDetail"]',
    ].filter(Boolean);

    const uniq = [...new Set(selectors)];
    const out = [];
    const seen = new Set();

    for (const sel of uniq) {
      let nodes = [];
      try {
        nodes = Array.from(document.querySelectorAll(sel));
      } catch {
        continue;
      }
      for (const node of nodes) {
        const a = unwrapAnchor(node);
        if (!a || !anchorInDataRow(a)) continue;
        let href = '';
        try {
          href = a.href || '';
        } catch (_) {
          continue;
        }
        if (!href || !/goStuDetail/i.test(href)) continue;
        if (seen.has(href)) continue;

        const text = ((a.textContent || '').trim()).replace(/\s+/g, ' ');
        if (!text || text === '——' || text === '--') continue;

        seen.add(href);
        out.push({ href, text });
      }
    }
    return out;
  }

  function ensurePanel() {
    let el = document.getElementById('batch-print-student-panel');
    if (el) return el;
    el = document.createElement('div');
    el.id = 'batch-print-student-panel';
    el.style.cssText = [
      'position:fixed',
      'right:16px',
      'bottom:16px',
      'z-index:2147483646',
      'font-family:system-ui,sans-serif',
      'font-size:13px',
      'background:#1e293b',
      'color:#f8fafc',
      'padding:12px 14px',
      'border-radius:10px',
      'box-shadow:0 8px 24px rgba(0,0,0,.35)',
      'min-width:200px',
    ].join(';');
    el.innerHTML = `
      <div style="font-weight:600;margin-bottom:8px;">批量打印</div>
      <div id="bps-status" style="opacity:.9;margin-bottom:10px;font-size:12px;">就绪</div>
      <div style="display:flex;gap:8px;flex-wrap:wrap;">
        <button id="bps-start" type="button" style="flex:1;cursor:pointer;padding:6px 10px;border-radius:6px;border:none;background:#22c55e;color:#052e16;font-weight:600;">开始</button>
        <button id="bps-stop" type="button" style="flex:1;cursor:pointer;padding:6px 10px;border-radius:6px;border:none;background:#ef4444;color:#fff;font-weight:600;">停止</button>
      </div>
      <div style="margin-top:8px;font-size:11px;opacity:.75;line-height:1.4;">仅当前页表格；预览为同标签时请保持本标签勿手动关闭。</div>
    `;
    document.documentElement.appendChild(el);
    return el;
  }

  function setPanelStatus(text) {
    const s = document.getElementById('bps-status');
    if (s) s.textContent = text;
  }

  function setupListPage() {
    const panel = ensurePanel();
    const btnStart = panel.querySelector('#bps-start');
    const btnStop = panel.querySelector('#bps-stop');

    const state = loadState();
    if (state.running && state.phase === 'return_list' && state.queue.length) {
      const nextNo = Math.min(state.index + 2, state.queue.length);
      setPanelStatus(`继续：下一位 ${nextNo}/${state.queue.length}`);
      queueMicrotask(() => resumeListAfterReturn());
    } else {
      setPanelStatus('就绪');
    }

    btnStart.addEventListener('click', async () => {
      const links = collectStudentLinks();
      if (!links.length) {
        alert(
          '未抓到姓名链接；请修正 CONFIG.listStudentLinkSelector（F12 右键「姓名」→ Copy → Copy selector）'
        );
        return;
      }
      saveState({
        running: true,
        stopRequested: false,
        listUrl: location.href,
        queue: links,
        index: -1,
        phase: 'goto_detail',
      });
      setPanelStatus(`排队 ${links.length} 人…`);
      await sleep(CONFIG.wait.betweenStudents);
      goNextStudentFromList();
    });

    btnStop.addEventListener('click', () => {
      saveState({ running: false, stopRequested: true, phase: 'idle' });
      setPanelStatus('已停止');
    });
  }

  function goNextStudentFromList() {
    const state = loadState();
    if (!state.running || state.stopRequested) return;
    const nextIndex = state.index + 1;
    if (nextIndex >= state.queue.length) {
      clearState();
      setPanelStatus('全部完成');
      saveState({ running: false, phase: 'idle' });
      return;
    }
    const item = state.queue[nextIndex];
    saveState({
      index: nextIndex,
      phase: 'goto_detail',
    });
    setPanelStatus(`打开 ${nextIndex + 1}/${state.queue.length}：${item.text || ''}`);
    location.href = item.href;
  }

  async function resumeListAfterReturn() {
    const state = loadState();
    if (!state.running || state.stopRequested) return;
    await sleep(CONFIG.wait.betweenStudents);
    goNextStudentFromList();
  }

  let openHookInstalled = false;

  function installOpenHook() {
    if (openHookInstalled) return;
    openHookInstalled = true;
    const orig = window.open;
    window.open = function (url, name, features) {
      const w = orig.call(this, url, name, features);
      const cur = loadState();
      if (w && cur.running && !cur.stopRequested) {
        const iv = setInterval(() => {
          const s = loadState();
          if (!s.running || s.stopRequested) {
            clearInterval(iv);
            return;
          }
          try {
            if (w.closed) {
              clearInterval(iv);
              log('预览窗口已关闭，返回列表');
              sleep(CONFIG.wait.afterNavigation).then(() => {
                saveState({ phase: 'return_list' });
                const listUrl = loadState().listUrl;
                if (listUrl) location.href = listUrl;
              });
            }
          } catch {
            clearInterval(iv);
          }
        }, CONFIG.wait.popupPoll);
      }
      return w;
    };
  }

  function findPrintPreviewElOnDetail() {
    const css = (CONFIG.detailPrintPreviewSelectorCss || '').trim();
    if (css) {
      const el = document.querySelector(css);
      if (el) return el;
    }
    return findClickableByText(document.body, '打印预览');
  }

  async function runDetailPage() {
    const state = loadState();
    if (!state.running || state.stopRequested) return;
    if (state.phase !== 'goto_detail' && state.phase !== 'on_detail') return;

    if (CONFIG.previewOpenMode === 'popup') installOpenHook();
    saveState({ phase: 'on_detail' });

    const btn = await waitFor(
      () => findPrintPreviewElOnDetail(),
      CONFIG.wait.domReady,
      100
    );
    if (!btn) {
      alert('找不到「打印预览」。请填充 CONFIG.detailPrintPreviewSelectorCss 或稍后重试。');
      saveState({ running: false, phase: 'idle' });
      return;
    }

    // sameTab：导航会立刻卸载当前文档，必须先写入阶段
    if (CONFIG.previewOpenMode === 'sameTab') saveState({ phase: 'goto_print' });

    btn.click();
    log('已点击 打印预览');

    if (CONFIG.previewOpenMode === 'sameTab') return;

    await sleep(CONFIG.wait.afterClickPreview);

    if (
      CONFIG.previewOpenMode === 'iframe' &&
      CONFIG.previewIframeSelector
    ) {
      const iframe = await waitFor(
        () => document.querySelector(CONFIG.previewIframeSelector),
        CONFIG.wait.domReady
      );
      if (iframe && iframe.contentDocument) {
        const doc = iframe.contentDocument;
        let pbtn = null;
        if (CONFIG.iframePrintButtonSelector) {
          pbtn = doc.querySelector(CONFIG.iframePrintButtonSelector);
        }
        if (!pbtn) pbtn = findClickableByText(doc.body, '打印');
        if (pbtn && CONFIG.autoPrintOnPreviewPage) {
          pbtn.click();
          await sleep(CONFIG.wait.printDialogDelay);
        }
        try {
          iframe.contentWindow.print();
        } catch (_) {}
      }
      await sleep(500);
      const listUrl = loadState().listUrl;
      if (listUrl) {
        saveState({ phase: 'return_list' });
        location.href = listUrl;
      }
      return;
    }

    let st = loadState();
    if (CONFIG.isPrintPreviewPage()) await runPrintPage();
  }

  async function runPrintPage() {
    const state = loadState();
    if (!state.running || state.stopRequested) return;

    saveState({ phase: 'on_print' });
    await sleep(CONFIG.wait.afterNavigation);

    if (CONFIG.printPageExtraPrintSelector) {
      const extra = document.querySelector(CONFIG.printPageExtraPrintSelector);
      if (extra) extra.click();
      await sleep(300);
    }

    const toolbarPrint = findPrintPageToolbarPrintEl();
    if (toolbarPrint) {
      toolbarPrint.click();
      log('已点击 打印（工具栏）');
    } else if (CONFIG.autoPrintOnPreviewPage) {
      await sleep(CONFIG.wait.printDialogDelay);
      try {
        window.print();
      } catch (_) {}
      log('未找到按钮，使用 window.print()');
    }

    window.addEventListener(
      'afterprint',
      () => finishPrintAndReturn(),
      { once: true }
    );
    setTimeout(() => finishPrintAndReturn(), 6500);
  }

  let _finishing = false;

  function finishPrintAndReturn() {
    if (_finishing) return;
    _finishing = true;
    const state = loadState();

    // 若为 window.open 子窗口脚本也注入了
    if (window.opener) {
      try {
        window.close();
      } catch (_) {}
      return;
    }

    if (CONFIG.closePreviewWindowAfterPrint) {
      try {
        window.close();
      } catch (_) {}
    }

    saveState({ phase: 'return_list' });
    setTimeout(() => {
      if (!window.closed && state.listUrl) location.href = state.listUrl;
    }, 320);
  }

  function detectPage() {
    if (CONFIG.isListPage()) return 'list';
    if (CONFIG.isPrintPreviewPage()) return 'print';
    if (CONFIG.isDetailPage()) return 'detail';
    return 'unknown';
  }

  async function main() {
    const page = detectPage();
    log('页面类型:', page, location.href);
    if (page === 'unknown' && CONFIG.debug) {
      console.warn(
        '[批量打印] URL 未被识别：',
        '\n详情应含 goStuDetail.action ',
        '\n预览应含 zzZxsJbxxAction!showDetail.action 且 isPrint=0'
      );
    }

    if (page === 'list') {
      setupListPage();
      return;
    }
    if (page === 'detail') {
      await sleep(CONFIG.wait.afterNavigation);
      await runDetailPage();
      return;
    }
    if (page === 'print') {
      await runPrintPage();
      return;
    }
  }

  main().catch((e) => console.error('[批量打印] 异常', e));
})();