const TOKEN = document.querySelector('meta[name="token"]')?.content || "";

const STATE_LABELS = {
  printing: "druckt", paused: "pausiert", complete: "fertig", standby: "bereit",
  heating: "heizt", error: "Fehler", cancelled: "abgebrochen", offline: "offline",
  waiting: "wartet", running: "läuft",
};

function escapeHtml(value) {
  return String(value ?? "")
    .replaceAll("&", "&")
    .replaceAll("<", "&lt;")
    .replaceAll(">", "&gt;")
    .replaceAll('"', "&quot;");
}

async function api(path, options = {}) {
  const headers = new Headers(options.headers || {});
  if (TOKEN) headers.set("Authorization", "Bearer " + TOKEN);
  let body = options.body;
  if (options.json !== undefined) {
    headers.set("Content-Type", "application/json");
    body = JSON.stringify(options.json);
  }
  const response = await fetch("/api/v1" + path, {
    method: options.method || "GET",
    headers,
    body,
    cache: "no-store",
  });
  if (!response.ok) {
    let message = response.statusText;
    try {
      const payload = await response.json();
      message = payload.error || message;
    } catch (error) {
      message = response.statusText;
    }
    throw new Error(message);
  }
  if (response.status === 204) return null;
  const type = response.headers.get("content-type") || "";
  if (type.includes("json")) return response.json();
  return response;
}

function withToken(url) {
  if (!url || !TOKEN) return url;
  return url + (url.includes("?") ? "&" : "?") + "token=" + encodeURIComponent(TOKEN);
}

function euro(value) {
  return Number(value || 0).toLocaleString("de-DE", { style: "currency", currency: "EUR" });
}

function grams(value) {
  return Number(value || 0).toLocaleString("de-DE", { maximumFractionDigits: 0 }) + " g";
}

function hours(seconds) {
  seconds = Math.round(Number(seconds) || 0);
  if (seconds <= 0) return "";
  const h = Math.floor(seconds / 3600);
  const m = Math.floor((seconds % 3600) / 60);
  return h > 0 ? h + " h " + String(m).padStart(2, "0") + " min" : m + " min";
}

function finishClock(remainSeconds) {
  const sec = Number(remainSeconds) || 0;
  if (sec <= 0) return "";
  const at = new Date(Date.now() + sec * 1000);
  return at.toLocaleTimeString("de-DE", { hour: "2-digit", minute: "2-digit" });
}

function clockOf(iso) {
  if (!iso) return "";
  const at = new Date(iso);
  if (Number.isNaN(at.getTime())) return "";
  return at.toLocaleTimeString("de-DE", { hour: "2-digit", minute: "2-digit" });
}

function showNote(id, error, ok) {
  const node = document.getElementById(id);
  if (node) {
    if (error) {
      node.textContent = error.message || String(error);
      node.className = "msg";
    } else {
      node.textContent = ok || "";
      node.className = ok ? "ok" : "ok";
    }
  }
  if (error) toast(error.message || String(error), "bad");
  else if (ok) toast(ok, "good");
}

function icon(name, cls) {
  return `<svg class="ico${cls ? " " + cls : ""}" aria-hidden="true"><use href="#i-${name}"/></svg>`;
}

function chipHtml(state, label, small) {
  const text = label || STATE_LABELS[state] || state || "";
  return `<span class="chip ${escapeHtml(state || "")}${small ? " sm" : ""}">${escapeHtml(text)}</span>`;
}

function stepsHtml(labels, index, compact) {
  if (!labels || !labels.length) return "";
  const parts = labels.map((label, i) => {
    const cls = i < index ? "done" : i === index ? "now" : "";
    return `<span class="step ${cls}">${escapeHtml(label)}</span>`;
  });
  return `<span class="steps${compact ? " compact" : ""}">${parts.join('<span class="step-sep"></span>')}</span>`;
}

function repeatText(job) {
  const total = Math.max(1, Number(job.repeat_total) || 1);
  if (total <= 1) return "";
  return Math.min(total, (Number(job.repeat_done) || 0) + 1) + "/" + total;
}

function phaseText(job) {
  const message = (job && job.message) || "";
  if (!job || !job.is_ablauf || job.status !== "running") return message;
  const parts = message.split(" · ");
  return parts.length > 1 ? parts.slice(-1)[0] : message;
}

function jobLabel(filename) {
  return (filename || "").replace(/\.gcode(\.3mf)?$/i, "").replace(/\.3mf$/i, "").replace(/^(\d+-)+/, "");
}

function toast(message, kind) {
  let host = document.querySelector(".toast-host");
  if (!host) {
    host = document.createElement("div");
    host.className = "toast-host";
    host.setAttribute("role", "status");
    host.setAttribute("aria-live", "polite");
    document.body.appendChild(host);
  }
  const node = document.createElement("div");
  node.className = "toast " + (kind || "good");
  node.innerHTML = icon(kind === "bad" ? "alert" : "check", "lg") + "<div></div>";
  node.querySelector("div").textContent = message;
  host.appendChild(node);
  const ttl = kind === "bad" ? 7000 : 4000;
  setTimeout(() => {
    node.classList.add("out");
    setTimeout(() => node.remove(), 260);
  }, ttl);
}

function armButton(button, armedText, onConfirm, timeoutMs) {
  if (button.dataset.armed === "1") {
    clearTimeout(Number(button.dataset.armTimer || 0));
    button.dataset.armed = "";
    button.classList.remove("confirm-armed");
    if (button.dataset.idleHtml) button.innerHTML = button.dataset.idleHtml;
    onConfirm();
    return;
  }
  button.dataset.idleHtml = button.innerHTML;
  button.dataset.armed = "1";
  button.classList.add("confirm-armed");
  button.textContent = armedText;
  const timer = setTimeout(() => {
    button.dataset.armed = "";
    button.classList.remove("confirm-armed");
    if (button.dataset.idleHtml) button.innerHTML = button.dataset.idleHtml;
  }, timeoutMs || 5000);
  button.dataset.armTimer = String(timer);
}