/* PDF 转换管理页：拉取 /api/admin/pdf/jobs、渲染表格（含「是否已删除」列）、硬删。 */
(function () {
  "use strict";
  const { el, toast, fmtBytes, fmtTime, api } = window.ZK;
  const listEl = document.getElementById("list");
  const countEl = document.getElementById("count");
  const refreshBtn = document.getElementById("refresh");

  refreshBtn.addEventListener("click", load);

  async function load() {
    listEl.innerHTML = '<div class="skel">加载中…</div>';
    countEl.textContent = "";
    try {
      const res = await api("/api/admin/pdf/jobs?limit=500&offset=0");
      if (!res.ok) throw new Error("HTTP " + res.status);
      const body = await res.json();
      render(body.items || []);
      countEl.textContent = `共 ${body.total} 个任务`;
    } catch (e) {
      listEl.innerHTML = '<div class="empty">加载失败：' + (e.message || e) + "</div>";
    }
  }

  function render(items) {
    if (!items.length) {
      listEl.innerHTML = '<div class="empty">还没有任务。</div>';
      return;
    }
    const table = el("table", { class: "jobs-table admin-table" });
    const thead = el("thead", null,
      el("tr", null,
        el("th", { class: "col-name" }, "文件名"),
        el("th", { class: "col-size" }, "大小"),
        el("th", { class: "col-status" }, "状态"),
        el("th", { class: "col-del" }, "是否已删除"),
        el("th", { class: "col-time" }, "创建时间"),
        el("th", { class: "col-act" }, "操作")
      )
    );
    const tbody = el("tbody", null);
    for (const j of items) tbody.appendChild(renderRow(j));
    table.appendChild(thead);
    table.appendChild(tbody);
    listEl.innerHTML = "";
    listEl.appendChild(table);
  }

  function renderRow(j) {
    const row = el("tr", { class: j.user_deleted ? "row-soft-deleted" : "" },
      el("td", { class: "col-name" }, j.source_filename),
      el("td", { class: "col-size mono" }, fmtBytes(j.source_size)),
      el("td", { class: "col-status" }, statusCell(j)),
      el("td", { class: "col-del" }, deletedCell(j)),
      el("td", { class: "col-time muted" }, fmtTime(j.created_at)),
      el("td", { class: "col-act" },
        j.status === "done"
          ? el("a", { class: "btn", href: `/api/admin/files/${j.output_file_id}/download`, download: "" }, "下载产物")
          : el("span", { class: "muted" }, "-"),
        el("button", { class: "btn danger", onclick: () => remove(j, row) }, "硬删")
      )
    );
    return row;
  }

  function statusCell(j) {
    if (j.status === "done") return el("span", { class: "tag ok" }, "完成");
    if (j.status === "failed")
      return el("span", { class: "tag err", title: j.error_message || "" }, "失败");
    return el("span", { class: "tag warn" }, j.status === "converting" ? `转换中 ${j.progress}%` : "排队中");
  }

  function deletedCell(j) {
    if (j.user_deleted) {
      return el("span", { class: "tag err", title: fmtTime(j.deleted_at) }, "已删除");
    }
    return el("span", { class: "muted" }, "否");
  }

  async function remove(j, row) {
    if (!confirm(`确定硬删「${j.source_filename}」？\n将真正删除原始文件与产物 PDF（磁盘 + 记录），不可恢复。`)) return;
    try {
      const res = await api(`/api/admin/pdf/jobs/${j.id}`, { method: "DELETE" });
      if (res.status === 404) { toast("任务已不存在"); }
      else if (!res.ok) throw new Error("HTTP " + res.status);
      row.classList.add("row-removed");
      setTimeout(() => row.remove(), 250);
      toast("已硬删");
      const m = (countEl.textContent || "").match(/(\d+)/);
      if (m) countEl.textContent = `共 ${Math.max(0, Number(m[1]) - 1)} 个任务`;
    } catch (e) {
      toast("删除失败：" + (e.message || e), "err");
    }
  }

  load();
})();