const FIELD_MAP = {
  name: "إسم المنشأة",
  phone: "رقم التواصل",
  email: "البريد الالكتروني",
  city: "المدينة الصناعية",
  commercialRegister: "السجل التجاري من الاطار",
  activityCode: "كود النشاط",
  activity: "النشاط"
};

const ICONS = {
  phone: `<svg viewBox="0 0 24 24" aria-hidden="true"><path d="M6.62 10.79c1.44 2.83 3.76 5.14 6.59 6.59l2.2-2.2a1.3 1.3 0 0 1 1.34-.31c1.47.49 3.04.75 4.65.75.72 0 1.3.58 1.3 1.3v3.48c0 .72-.58 1.3-1.3 1.3C10.52 21.7 1.8 12.98 1.8 2.1 1.8 1.38 2.38.8 3.1.8h3.5c.72 0 1.3.58 1.3 1.3 0 1.62.26 3.18.75 4.65.14.47.03.99-.32 1.33l-1.71 1.71Z" /></svg>`,
  whatsapp: `<svg viewBox="0 0 24 24" aria-hidden="true"><path d="M12.04 2.2a9.7 9.7 0 0 0-8.39 14.56L2.6 21.8l5.17-1.23a9.67 9.67 0 0 0 4.27.99h.01a9.68 9.68 0 0 0 0-19.36Zm5.7 13.65c-.24.68-1.39 1.3-1.95 1.38-.5.08-1.14.12-1.84-.12-.43-.14-.98-.32-1.68-.63-2.96-1.28-4.88-4.26-5.03-4.46-.15-.2-1.2-1.59-1.2-3.04s.76-2.16 1.03-2.45c.27-.3.58-.37.78-.37h.56c.18.01.42-.07.66.5.24.58.82 2 .89 2.15.07.15.12.32.02.52-.1.2-.15.32-.3.49-.15.17-.32.38-.45.51-.15.15-.3.31-.13.61.17.3.75 1.24 1.61 2.01 1.1.98 2.03 1.28 2.33 1.43.3.15.47.13.64-.08.17-.2.74-.86.94-1.15.2-.3.4-.25.66-.15.27.1 1.72.81 2.01.96.3.15.5.22.57.35.07.12.07.72-.17 1.4Z" /></svg>`
};

const queryInput = document.getElementById("query");
const resultsEl = document.getElementById("results");
const clearButton = document.getElementById("clearButton");
const emptyTemplate = document.getElementById("emptyTemplate");

function escapeHtml(value) {
  return String(value ?? "")
    .replaceAll("&", "&amp;")
    .replaceAll("<", "&lt;")
    .replaceAll(">", "&gt;")
    .replaceAll('"', "&quot;")
    .replaceAll("'", "&#039;");
}

function normalizeArabic(value) {
  return String(value || "")
    .toLowerCase()
    .replace(/[إأآا]/g, "ا")
    .replace(/ى/g, "ي")
    .replace(/ة/g, "ه")
    .replace(/ؤ/g, "و")
    .replace(/ئ/g, "ي")
    .replace(/[ً-ٰٟ]/g, "")
    .replace(/\s+/g, " ")
    .trim();
}

function digitsOnly(value) {
  return String(value || "").replace(/\D/g, "");
}

function formatPhoneDisplay(value) {
  const digits = digitsOnly(value);
  if (!digits || digits === "0") return "غير متاح";
  if (digits.length === 9 && digits.startsWith("5")) return `0${digits}`;
  return digits;
}

function hasUsefulValue(value) {
  const text = String(value ?? "").trim();
  if (!text) return false;
  const normalized = text.replace(/\s+/g, "").replace(/[ـ-]/g, "");
  if (!normalized) return false;
  if (/^0+$/.test(digitsOnly(normalized)) && !/[^\d\s+()-]/.test(normalized)) return false;
  return !["غيرمتاح", "لايوجد", "لاينطبق", "nan", "null", "undefined"].includes(normalizeArabic(normalized));
}

function toSaudiInternational(value) {
  let digits = digitsOnly(value);
  if (!digits || digits === "0") return "";
  if (digits.startsWith("00")) digits = digits.slice(2);
  if (digits.startsWith("+")) digits = digits.slice(1);
  if (digits.startsWith("966")) return digits;
  if (digits.startsWith("0") && digits.length >= 9) return `966${digits.slice(1)}`;
  if (digits.startsWith("5") && digits.length === 9) return `966${digits}`;
  return digits.length >= 7 ? digits : "";
}

function highlightName(name, query) {
  const original = String(name || "");
  const q = String(query || "").trim();
  if (!original || !q) return escapeHtml(original || "-");

  const index = original.toLowerCase().indexOf(q.toLowerCase());
  if (index === -1) return escapeHtml(original);

  const before = escapeHtml(original.slice(0, index));
  const match = escapeHtml(original.slice(index, index + q.length));
  const after = escapeHtml(original.slice(index + q.length));
  return `${before}<mark>${match}</mark>${after}`;
}

function field(label, value, options = {}) {
  if (!hasUsefulValue(value)) return "";

  const display = value && String(value).trim() ? value : "-";
  const content = options.html || escapeHtml(display);
  const classes = ["info-field", options.full ? "full" : ""].filter(Boolean).join(" ");
  const valueClasses = ["value", options.ltr ? "ltr" : ""].filter(Boolean).join(" ");
  const action = options.action || "";

  return `
    <div class="${classes}">
      <span class="label">${escapeHtml(label)}</span>
      <div class="field-line">
        <div class="${valueClasses}">${content}</div>
        ${action}
      </div>
    </div>
  `;
}

function whatsappAction(phone) {
  const normalized = toSaudiInternational(phone);
  if (!normalized) return "";
  const disabled = !normalized;
  const whatsHref = disabled ? "#" : `https://wa.me/${normalized}`;
  const disabledClass = disabled ? " disabled" : "";

  return `
    <a class="inline-whatsapp${disabledClass}" href="${whatsHref}" target="_blank" rel="noopener" title="واتساب" aria-label="واتساب">${ICONS.whatsapp}</a>
  `;
}

function renderEmpty() {
  const node = emptyTemplate.content.cloneNode(true);
  resultsEl.replaceChildren(node);
}

function renderResults(items, query) {
  if (!query.trim()) {
    renderEmpty();
    return;
  }

  if (!items.length) {
    renderEmpty();
    return;
  }

  resultsEl.innerHTML = items.map((item) => {
    const name = item[FIELD_MAP.name] || "-";
    const phone = item[FIELD_MAP.phone] || "";
    const email = item[FIELD_MAP.email] || "";
    const city = item[FIELD_MAP.city] || "";
    const emailHtml = hasUsefulValue(email) ? `<a href="mailto:${escapeHtml(email)}">${escapeHtml(email)}</a>` : "";

    return `
      <article class="result-card">
        <div class="card-head">
          <div>
            <h2 class="entity-title">${highlightName(name, query)}</h2>
            ${hasUsefulValue(city) ? `<p class="entity-meta">${escapeHtml(city)}</p>` : ""}
          </div>
        </div>
        <div class="card-body">
          ${field("رقم التواصل", phone, { html: escapeHtml(formatPhoneDisplay(phone)), ltr: true, action: whatsappAction(phone) })}
          ${field("البريد الالكتروني", email, { html: emailHtml, ltr: true })}
          ${field("السجل التجاري", item[FIELD_MAP.commercialRegister], { ltr: true })}
          ${field("كود النشاط", item[FIELD_MAP.activityCode], { ltr: true })}
          ${field("المدينة الصناعية", city)}
          ${field("النشاط", item[FIELD_MAP.activity], { full: true })}
        </div>
      </article>
    `;
  }).join("");
}

function search() {
  const query = queryInput.value.trim();
  const normalizedQuery = normalizeArabic(query);

  const matches = DATA.filter((item) => {
    const name = normalizeArabic(item[FIELD_MAP.name]);
    return normalizedQuery && name.includes(normalizedQuery);
  }).sort((a, b) => String(a[FIELD_MAP.name] || "").localeCompare(String(b[FIELD_MAP.name] || ""), "ar"));

  renderResults(matches, query);
}

queryInput.addEventListener("input", search);
queryInput.addEventListener("keydown", (event) => {
  if (event.key === "Enter") search();
});
clearButton.addEventListener("click", () => {
  queryInput.value = "";
  queryInput.focus();
  renderEmpty();
});

renderEmpty();