{% extends "layout.html" %}
{% block body %}
<div class="page-head">
  <div>
    <h1>Aktivität</h1>
    <p class="tiny">Ereignisse von Grotti und den Druckern. Neueste oben.</p>
  </div>
  <div class="page-head-side">
    <button type="button" class="ghost" id="tl-refresh"><svg class="ico"><use href="#i-refresh"/></svg>Neu laden</button>
    <button type="button" id="tl-read"><svg class="ico"><use href="#i-check"/></svg>Alle gelesen</button>
  </div>
</div>

<div class="toolbar" id="f-range" role="group" aria-label="Zeitraum">
  <div class="fchips">
    <button type="button" class="fchip on" data-range="day">Heute</button>
    <button type="button" class="fchip" data-range="week">7 Tage</button>
    <button type="button" class="fchip" data-range="all">Alle</button>
  </div>
</div>
<div class="toolbar" id="f-kind" role="group" aria-label="Art"></div>
<div class="toolbar" id="f-host" role="group" aria-label="Drucker"></div>

<p id="tl-note" class="tiny"></p>
<div class="timeline" id="timeline">
  <div class="skeleton" style="height:4rem"></div>
  <div class="skeleton" style="height:4rem"></div>
</div>
<div class="pager" id="tl-pager" hidden></div>
{% endblock %}
{% block script %}
<script>
let tlPage = 1;
let tlItems = [];
const KINDS = [
  ["queue", "Warteschlange"],
  ["ablauf", "Ablauf"],
  ["start", "Start / Pause"],
  ["fertig", "Fertig"],
  ["fehler", "Fehler"],
  ["abbruch", "Abbruch"],
  ["offline", "Offline"],
  ["spule", "Spule"],
];
const KIND_LABEL = Object.fromEntries(KINDS);
const params = new URLSearchParams(location.search);
const filter = {
  range: params.get("range") || (params.get("host") ? "week" : "day"),
  kinds: new Set((params.get("kind") || "").split(",").filter(Boolean)),
  host: params.get("host") || "",
};
let printers = [];

function syncUrl() {
  const q = new URLSearchParams();
  if (filter.range !== "day") q.set("range", filter.range);
  if (filter.kinds.size) q.set("kind", [...filter.kinds].join(","));
  if (filter.host) q.set("host", filter.host);
  const s = q.toString();
  history.replaceState(null, "", s ? "?" + s : location.pathname);
}

function renderFilters() {
  document.querySelectorAll("#f-range .fchip").forEach((b) => b.classList.toggle("on", b.dataset.range === filter.range));
  document.getElementById("f-kind").innerHTML =
    `<button type="button" class="fchip ${filter.kinds.size ? "" : "on"}" data-kind="">Alle Arten</button>` +
    KINDS.map(([k, label]) =>
      `<button type="button" class="fchip ${filter.kinds.has(k) ? "on" : ""}" data-kind="${k}"><span class="tl-dot ${k}"></span>${label}</button>`
    ).join("");
  document.getElementById("f-host").innerHTML =
    `<button type="button" class="fchip ${filter.host ? "" : "on"}" data-host="">Alle Drucker</button>` +
    printers.map((p) =>
      `<button type="button" class="fchip ${filter.host === p.host ? "on" : ""}" data-host="${escapeHtml(p.host)}">${escapeHtml(p.name)}</button>`
    ).join("");
}

function sinceIso() {
  if (filter.range === "all") return "";
  const d = new Date();
  if (filter.range === "day") d.setHours(0, 0, 0, 0);
  else d.setDate(d.getDate() - 7);
  return d.toISOString();
}

function dayLabel(date) {
  const today = new Date(); today.setHours(0, 0, 0, 0);
  const that = new Date(date); that.setHours(0, 0, 0, 0);
  const diff = Math.round((today - that) / 86400000);
  if (diff === 0) return "Heute";
  if (diff === 1) return "Gestern";
  return that.toLocaleDateString("de-DE", { weekday: "long", day: "numeric", month: "long" });
}

function itemHtml(ev) {
  const t = new Date(ev.created_at);
  const time = t.toLocaleTimeString("de-DE", { hour: "2-digit", minute: "2-digit" });
  let msg = ev.message || "";
  if (ev.printer && msg.startsWith(ev.printer)) msg = msg.slice(ev.printer.length).replace(/^[\s:·—-]+/, "");
  const who = ev.printer
    ? `<a href="/#${encodeURIComponent(ev.host)}"><b>${escapeHtml(ev.printer)}</b></a>`
    : `<b>Grotti</b>`;
  const file = ev.filename && !msg.includes(ev.filename)
    ? `<div class="tl-file">${icon("file", "ico-sm")} ${escapeHtml(ev.filename)}</div>` : "";
  return `<li class="tl-item ${ev.unread ? "unread" : ""}">
    <span class="tl-time" title="${escapeHtml(t.toLocaleString("de-DE"))}">${time}</span>
    <span class="tl-dot ${escapeHtml(ev.kind)}"></span>
    <div class="tl-body">
      <div class="tl-head">${who}<span class="tl-kind">${escapeHtml(KIND_LABEL[ev.kind] || ev.kind)}</span></div>
      <div class="tl-msg">${escapeHtml(msg)}</div>${file}
    </div>
  </li>`;
}

function render(items) {
  const box = document.getElementById("timeline");
  const note = document.getElementById("tl-note");
  const pager = document.getElementById("tl-pager");
  tlItems = items || [];
  if (!tlItems.length) {
    box.innerHTML = `<div class="card empty-state">${icon("activity")}<p>Keine Einträge${filter.range === "day" ? " heute" : ""}.</p>${
      filter.range !== "all" ? `<button type="button" class="ghost" data-range-jump="all">Alle anzeigen</button>` : ""}</div>`;
    note.textContent = "";
    renderPager(pager, null, () => {});
    return;
  }
  const paged = pageSlice(tlItems, tlPage, DEFAULT_PAGE_SIZE);
  tlPage = paged.page;
  const groups = [];
  for (const ev of paged.items) {
    const label = dayLabel(ev.created_at);
    if (!groups.length || groups[groups.length - 1].label !== label) groups.push({ label, items: [] });
    groups[groups.length - 1].items.push(ev);
  }
  box.innerHTML = groups.map((g) =>
    `<section class="tl-day"><h3>${escapeHtml(g.label)} · ${g.items.length}</h3><ol class="tl-list">${g.items.map(itemHtml).join("")}</ol></section>`
  ).join("");
  note.textContent = tlItems.length >= 300 ? "Die letzten 300 Einträge. Zeitraum oder Filter enger stellen für ältere." : "";
  renderPager(pager, paged, (p) => {
    tlPage = p;
    render(tlItems);
  });
}

async function load() {
  const q = new URLSearchParams({ limit: "300" });
  const since = sinceIso();
  if (since) q.set("since", since);
  if (filter.kinds.size) q.set("kind", [...filter.kinds].join(","));
  if (filter.host) q.set("host", filter.host);
  try {
    const data = await api("/ereignisse?" + q.toString());
    tlPage = 1;
    render(data.items || []);
  } catch (err) {
    document.getElementById("timeline").innerHTML = `<div class="strip bad">${icon("alert")}<span>${escapeHtml(err.message)}</span></div>`;
  }
}

document.addEventListener("click", (e) => {
  const range = e.target.closest("[data-range], [data-range-jump]");
  if (range) {
    filter.range = range.dataset.range || range.dataset.rangeJump;
  } else if (e.target.closest("#f-kind [data-kind]")) {
    const k = e.target.closest("[data-kind]").dataset.kind;
    if (!k) filter.kinds.clear();
    else if (filter.kinds.has(k)) filter.kinds.delete(k);
    else filter.kinds.add(k);
  } else if (e.target.closest("#f-host [data-host]")) {
    filter.host = e.target.closest("[data-host]").dataset.host;
  } else {
    return;
  }
  syncUrl();
  renderFilters();
  load();
});

document.getElementById("tl-refresh").addEventListener("click", load);
document.getElementById("tl-read").addEventListener("click", async () => {
  await api("/ereignisse/gelesen", { method: "POST", json: {} });
  toast("Alles als gelesen markiert.", "good");
  if (typeof refreshEvents === "function") refreshEvents();
  load();
});
window.onEventsRead = load;

(async () => {
  try {
    printers = await api("/drucker?live=0");
  } catch (_) {
    printers = [];
  }
  renderFilters();
  load();
  setInterval(load, 15000);
})();
</script>
{% endblock %}