"use strict";
/* ==========================================================================
   B · 值班台账 Ledger Desk —— 表格本身就是主舞台，每条真实事件一行。
   响应/汇入/处理/发布/审计五列只填该行真实具备的阶段，没有发生的阶段留空，
   不做跨行编造关联。底部调用带只滚真实 recent_calls。
   ========================================================================== */
(function () {
  const C = window.Core, S = window.HubShared;
  const { $, esc, timeShort } = C;
  let root = null;
  let unsubs = [];
  let seenRowKeys = new Set();
  let mounted = false;
  let pendingTimers = [];
  function safeTimeout(fn, ms) {
    const id = setTimeout(() => { if (mounted) fn(); }, ms);
    pendingTimers.push(id);
    return id;
  }

  const SKELETON = `
    <div id="lg-root" class="page-shell">
      <div id="lg-grid">
        <div id="lg-side">
          <section class="card lg-panel">
            <span class="sec-label">来源健康 SOURCES</span>
            <div id="lg-srcList"></div>
          </section>
          <section class="card lg-panel">
            <span class="sec-label">调度任务 JOBS</span>
            <div id="lg-jobList"></div>
          </section>
        </div>

        <section class="card" id="lg-ledger">
          <div class="lg-ledger-hd">
            <span class="sec-label">事件台账 EVENT LEDGER</span>
            <span class="hint">每条事件依次经过 响应→汇入→处理→发布→审计</span>
          </div>
          <div style="overflow:auto; max-height: 62vh;">
            <table class="lg-ledger">
              <thead><tr>
                <th>时间</th><th>事件</th><th>来源</th>
                <th class="stage">响应<br/><span style="opacity:.6">RESP</span></th>
                <th class="stage">汇入<br/><span style="opacity:.6">INGEST</span></th>
                <th class="stage">处理<br/><span style="opacity:.6">PROC</span></th>
                <th class="stage">发布<br/><span style="opacity:.6">PUB</span></th>
                <th class="stage">审计<br/><span style="opacity:.6">AUDIT</span></th>
              </tr></thead>
              <tbody id="lg-ledgerBody"></tbody>
            </table>
          </div>
          <div id="lg-tape">
            <span class="sec-label">调用带 CALL TAPE</span>
            <div id="lg-tape-track"><div id="lg-tape-inner"></div></div>
          </div>
        </section>

        <div id="lg-side-r">
          <section class="card lg-panel" id="lg-release">
            <span class="sec-label">盘后发布 RELEASE</span>
            <div class="toolrow">
              <input id="lg-rel-date" value="" />
              <button type="button" class="btn mini" id="lg-rel-load">查看</button>
              <button type="button" class="btn danger mini" id="lg-rel-backfill">补数</button>
            </div>
            <div id="lg-pubTable"></div>
          </section>
          <section class="card lg-panel">
            <span class="sec-label">审计 AUDIT</span>
            <div id="lg-auditList"></div>
          </section>
        </div>
      </div>
    </div>
  `;

  function renderSources() {
    const v = S.sourcesView();
    const host = $("lg-srcList");
    if (!v) { host.innerHTML = `<div class="muted">正在加载…</div>`; return; }
    host.innerHTML = v.live.map((it) => {
      const health = it.health || {};
      const link = it._link || C.linkState(health);
      return `<div class="lg-src-row" data-provider="${esc(it.provider)}">
        <span class="lamps"><i class="lamp link ${C.linkLampClass(link)}"></i><i class="lamp act" data-act></i></span>
        <span class="nm">${esc(C.FLOW_LABEL[it.provider] || it.provider)}</span>
        ${C.chipHtml(link, health.state || link)}
        <span class="lat mono">${health.latency_ms == null ? "-" : health.latency_ms + "ms"}</span>
        <button class="btn ghost mini" data-probe="${esc(it.provider)}">探测</button>
      </div>`;
    }).join("");
    S.bindProbeButtons(host, () => renderSources());
  }

  function renderJobs() {
    const v = S.jobsView();
    const host = $("lg-jobList");
    if (!v) { host.innerHTML = `<div class="muted">正在加载…</div>`; return; }
    host.innerHTML = v.jobs.map((job) => {
      const latest = v.latestByJob.get(job.id);
      return `<div class="lg-jobline">
        ${C.chipHtml(latest ? latest.state : "idle")}
        <span class="nm mono">${esc(job.id)}</span>
        <span class="at mono">${esc(job.at)}</span>
        <button class="btn ghost mini" data-run="${esc(job.id)}">触发</button>
      </div>`;
    }).join("");
    S.bindRunButtons(host, () => renderJobs());
  }

  function renderRelease() {
    const v = S.releaseView();
    const dateInput = $("lg-rel-date");
    if (!dateInput.value) dateInput.value = C.state.releaseDate;
    if (!v) { $("lg-pubTable").innerHTML = `<div class="muted">正在加载…</div>`; return; }
    $("lg-pubTable").innerHTML = C.table(["数据集", "批次", "状态", "时间", ""], v.pubs.map((p) => [
      `<span class="mono k">${esc(p.dataset)}</span>`, `<span class="mono">${esc(p.active_batch)}</span>`,
      C.chipHtml(p.state), `<span class="mono">${esc(p.published_at)}</span>`,
      p.prev_batch ? `<button class="btn danger mini" data-rollback="${esc(p.dataset)}">回滚</button>` : "-",
    ]));
    S.bindRollbackButtons($("lg-pubTable"), () => renderRelease());
  }

  function renderAuditList() {
    const v = S.auditView();
    const host = $("lg-auditList");
    if (!v) { host.innerHTML = `<div class="muted">正在加载…</div>`; return; }
    host.innerHTML = v.items.slice(0, 10).map((a) => `
      <div class="lg-auditline mono">
        <div>${esc(timeShort(a.created_at))} <b>${esc(a.actor)}</b> <span class="${String(a.action).includes("rollback") ? "warn" : ""}">${esc(a.action)}</span></div>
        <div class="dim">${esc(a.target)}${a.detail ? " · " + esc(a.detail) : ""}</div>
      </div>`).join("");
  }

  /* ---------------------------------------------------------------- 台账行合成
     每行只填该事件类型真实具备的阶段；不同类型互不编造对方的字段。 */
  function cell(text, kind) {
    if (text == null || text === "") return `<span class="lg-cell dash">—</span>`;
    return `<span class="lg-cell ${kind || ""}">${esc(text)}</span>`;
  }

  function buildLedgerRows() {
    const ov = S.overviewView(), jv = S.jobsView(), rv = S.releaseView(), av = S.auditView();
    const rows = [];
    if (ov) {
      for (const c of ov.recentCalls) {
        rows.push({
          key: `call:${c.id}`, t: c.created_at, name: c.endpoint, sub: "来源响应", source: c.provider,
          resp: cell(timeShort(c.created_at), c.ok ? "ok" : "err"),
          ingest: c.ok ? cell(timeShort(c.created_at), "ok") : cell(),
          proc: cell(), pub: cell(), audit: cell(),
          err: !c.ok,
        });
      }
    }
    if (jv) {
      for (const r of jv.runs.slice(0, 30)) {
        const job = jv.jobs.find((j) => j.id === r.job_id);
        rows.push({
          key: `run:${r.id}`, t: r.started_at, name: (job && job.title) || r.job_id, sub: r.job_id, source: "system",
          resp: cell(), ingest: cell(timeShort(r.started_at), "ok"),
          proc: r.state === "running" ? cell("running", "warn") : r.state === "failed" ? cell(r.error || "failed", "err") : cell(timeShort(r.finished_at), "ok"),
          pub: cell(), audit: cell(),
          err: r.state === "failed",
        });
      }
    }
    if (rv) {
      for (const p of rv.pubs) {
        if (!p.published_at || p.published_at === "-") continue;
        rows.push({
          key: `pub:${p.dataset}:${p.active_batch}`, t: p.published_at, name: `批次发布 · ${p.dataset}`, sub: p.active_batch, source: "system",
          resp: cell(), ingest: cell(), proc: cell(),
          pub: cell(timeShort(p.published_at), p.state === "published" ? "ok" : "warn"),
          audit: cell(),
          err: p.state === "missing" || p.state === "error",
        });
      }
    }
    if (av) {
      for (const a of av.items.slice(0, 30)) {
        const isRollback = String(a.action).includes("rollback");
        const isProbe = a.action === "probe";
        rows.push({
          key: `audit:${a.id}`, t: a.created_at, name: a.action, sub: a.target, source: a.actor,
          resp: isProbe ? cell(timeShort(a.created_at), String(a.detail).includes("失败") ? "err" : "ok") : cell(),
          ingest: cell(), proc: cell(),
          pub: isRollback ? cell(timeShort(a.created_at), "warn") : cell(),
          audit: cell(timeShort(a.created_at), isRollback ? "warn" : "ok"),
          err: isRollback,
        });
      }
    }
    rows.sort((a, b) => String(b.t).localeCompare(String(a.t)));
    return rows.slice(0, 60);
  }

  function renderLedger() {
    const rows = buildLedgerRows();
    const body = $("lg-ledgerBody");
    body.innerHTML = rows.map((r) => `
      <tr class="lg-row ${seenRowKeys.has(r.key) ? "" : "flashnew"} ${r.err ? "err" : ""}" data-key="${esc(r.key)}">
        <td class="mono">${esc(timeShort(r.t))}</td>
        <td class="ev"><div class="nm">${esc(r.name)}</div><div class="sub">${esc(r.sub || "")}</div></td>
        <td class="src mono">${esc(r.source)}</td>
        <td class="stage">${r.resp}</td>
        <td class="stage">${r.ingest}</td>
        <td class="stage">${r.proc}</td>
        <td class="stage">${r.pub}</td>
        <td class="stage">${r.audit}</td>
      </tr>`).join("");
    rows.forEach((r) => seenRowKeys.add(r.key));
    if (!C.state.reduced) {
      body.querySelectorAll("tr.flashnew").forEach((tr) => {
        setTimeout(() => tr.classList.remove("flashnew"), 1000);
      });
    } else {
      body.querySelectorAll("tr.flashnew").forEach((tr) => tr.classList.remove("flashnew"));
    }
  }

  /* ---------------------------------------------------------------- 调用带：只滚真实 recent_calls */
  function renderTape() {
    const ov = S.overviewView();
    const inner = $("lg-tape-inner");
    if (!ov || !ov.recentCalls.length) { inner.innerHTML = `<span class="lg-tape-item muted">暂无真实调用</span>`; inner.style.animation = "none"; return; }
    const items = ov.recentCalls.slice(0, 16).map((c) => `<span class="lg-tape-item ${c.ok ? "" : "err"}">${esc(timeShort(c.created_at))} <b>${esc(c.provider)}</b> ${esc(c.endpoint)} ${c.ok ? "✓" : "× " + esc(c.error)}</span>`).join("");
    inner.innerHTML = items + items; // 首尾拼接形成无缝循环，内容仍全部来自真实调用
    if (C.state.reduced) { inner.style.animation = "none"; return; }
    const width = inner.scrollWidth / 2;
    inner.style.animation = "none";
    void inner.offsetWidth;
    inner.style.setProperty("--tape-w", `-${width}px`);
    inner.style.animation = `lg-tape-scroll ${Math.max(12, width / 40)}s linear infinite`;
  }
  if (!document.getElementById("lg-tape-keyframes")) {
    const style = document.createElement("style");
    style.id = "lg-tape-keyframes";
    style.textContent = `@keyframes lg-tape-scroll { from { transform: translateX(0); } to { transform: translateX(var(--tape-w, -800px)); } }`;
    document.head.appendChild(style);
  }

  function updateTapePauseState() {
    const el = $("lg-tape");
    if (!el) return;
    el.classList.toggle("paused", !C.Poller.runtimeAvailable() || C.state.reduced);
  }

  function refresh() {
    if (!root) return;
    renderSources(); renderJobs(); renderRelease(); renderAuditList(); renderLedger(); renderTape(); updateTapePauseState();
  }

  function onEvent(evt) {
    if (!root || !mounted) return;
    if (C.FLOW_PROVIDERS.includes(evt.channel)) {
      const row = root.querySelector(`.lg-src-row[data-provider="${evt.channel}"] [data-act]`);
      if (row) {
        row.classList.remove("on", "err");
        row.classList.add("on"); if (evt.kind === "error") row.classList.add("err");
        setTimeout(() => row.classList.remove("on", "err"), 800);
      }
    }
    renderLedger();
    renderTape();
  }

  function mount(el) {
    root = el;
    mounted = true;
    seenRowKeys = new Set();
    root.innerHTML = SKELETON;
    refresh();
    S.bindReleaseDateReload(root, "#lg-rel-date", "#lg-rel-load", () => renderRelease());
    S.bindBackfillButton(root, "#lg-rel-backfill", () => renderRelease());
    unsubs.push(C.Bus.on("data", refresh));
    unsubs.push(C.Bus.on("event", onEvent));
    unsubs.push(C.Bus.on("runtime", updateTapePauseState));
    unsubs.push(C.Bus.on("reduced", () => { renderTape(); updateTapePauseState(); }));
  }
  function unmount() {
    mounted = false;
    unsubs.forEach((fn) => fn()); unsubs = [];
    pendingTimers.forEach(clearTimeout); pendingTimers = [];
    root = null;
  }

  window.HUB_LAYOUTS = window.HUB_LAYOUTS || {};
  window.HUB_LAYOUTS.ledger = { mount, unmount };
})();