/* ===== VALEA Inversiones — Scripts estáticos ===== */
(function () {
  'use strict';

  /* ---------- Mobile navigation ---------- */
  var toggle = document.querySelector('.nav-toggle');
  var mobile = document.querySelector('.nav-mobile');
  if (toggle && mobile) {
    toggle.addEventListener('click', function () {
      mobile.classList.toggle('open');
      var icon = toggle.querySelector('svg');
      if (mobile.classList.contains('open')) {
        icon.innerHTML = '<line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line>';
      } else {
        icon.innerHTML = '<line x1="3" y1="12" x2="21" y2="12"></line><line x1="3" y1="6" x2="21" y2="6"></line><line x1="3" y1="18" x2="21" y2="18"></line>';
      }
    });
    mobile.querySelectorAll('a').forEach(function (a) {
      a.addEventListener('click', function () { mobile.classList.remove('open'); });
    });
  }

  /* ---------- Active nav link ---------- */
  var path = window.location.pathname.split('/').pop() || 'index.html';
  document.querySelectorAll('[data-nav]').forEach(function (link) {
    if (link.getAttribute('data-nav') === path) link.classList.add('active');
  });

  /* ---------- Scroll reveal ---------- */
  var reveals = document.querySelectorAll('.reveal');
  if ('IntersectionObserver' in window && reveals.length) {
    var io = new IntersectionObserver(function (entries) {
      entries.forEach(function (entry) {
        if (entry.isIntersecting) {
          entry.target.classList.add('visible');
          io.unobserve(entry.target);
        }
      });
    }, { threshold: 0.12 });
    reveals.forEach(function (el) { io.observe(el); });
  } else {
    reveals.forEach(function (el) { el.classList.add('visible'); });
  }

  /* ---------- Toast ---------- */
  function showToast(title, desc, type) {
    var vp = document.querySelector('.toast-viewport');
    if (!vp) {
      vp = document.createElement('div');
      vp.className = 'toast-viewport';
      document.body.appendChild(vp);
    }
    var t = document.createElement('div');
    t.className = 'toast ' + (type || 'success');
    t.innerHTML =
      '<div><div class="toast-title"></div><div class="toast-desc"></div></div>' +
      '<button class="toast-close" aria-label="Cerrar"><svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg></button>';
    t.querySelector('.toast-title').textContent = title;
    t.querySelector('.toast-desc').textContent = desc || '';
    vp.appendChild(t);
    var close = function () {
      t.style.transition = 'opacity .3s, transform .3s';
      t.style.opacity = '0';
      t.style.transform = 'translateX(100%)';
      setTimeout(function () { if (t.parentNode) t.parentNode.removeChild(t); }, 300);
    };
    t.querySelector('.toast-close').addEventListener('click', close);
    setTimeout(close, 5000);
  }
  window.valeaToast = showToast;

  /* ---------- Contact form ---------- */
  var form = document.getElementById('contact-form');
  if (form) {
    var fields = ['nombre', 'email', 'telefono', 'empresa', 'asunto', 'mensaje'];
    var data = {};
    fields.forEach(function (f) { data[f] = ''; });

    function setError(name, msg) {
      var input = form.querySelector('[name="' + name + '"]');
      var errEl = form.querySelector('[data-error="' + name + '"]');
      if (input) input.classList.toggle('error', !!msg);
      if (errEl) errEl.textContent = msg || '';
    }

    function validate() {
      var ok = true;
      if (!data.nombre.trim()) { setError('nombre', 'El nombre es requerido'); ok = false; } else setError('nombre', '');
      if (!data.email.trim()) { setError('email', 'El email es requerido'); ok = false; }
      else if (!/^\S+@\S+\.\S+$/.test(data.email)) { setError('email', 'Email inválido'); ok = false; } else setError('email', '');
      if (!data.telefono.trim()) { setError('telefono', 'El teléfono es requerido'); ok = false; } else setError('telefono', '');
      if (!data.asunto.trim()) { setError('asunto', 'El asunto es requerido'); ok = false; } else setError('asunto', '');
      if (!data.mensaje.trim()) { setError('mensaje', 'El mensaje es requerido'); ok = false; } else setError('mensaje', '');
      return ok;
    }

    fields.forEach(function (name) {
      var input = form.querySelector('[name="' + name + '"]');
      if (input) {
        input.addEventListener('input', function () {
          data[name] = input.value;
          if (input.classList.contains('error')) setError(name, '');
        });
      }
    });

    form.addEventListener('submit', function (e) {
      e.preventDefault();
      fields.forEach(function (name) {
        var input = form.querySelector('[name="' + name + '"]');
        if (input) data[name] = input.value;
      });
      if (!validate()) {
        showToast('Error de validación', 'Por favor complete todos los campos requeridos.', 'error');
        return;
      }
      var btn = form.querySelector('button[type="submit"]');
      var original = btn.innerHTML;
      btn.disabled = true;
      btn.innerHTML = '<svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="margin-right:.5rem;animation:spin 1s linear infinite"><path d="M21 12a9 9 0 1 1-6.219-8.56"></path></svg> Enviando...';

      // Alternativa funcional sin backend: abrir el cliente de correo del usuario
      // con todos los datos del formulario ya rellenados.
      setTimeout(function () {
        var subject = encodeURIComponent(data.asunto || 'Consulta desde la web VALEA Inversiones');
        var body = encodeURIComponent(
          'Nombre: ' + data.nombre + '\n' +
          'Email: ' + data.email + '\n' +
          'Teléfono: ' + data.telefono + '\n' +
          (data.empresa ? 'Empresa: ' + data.empresa + '\n' : '') +
          '\nMensaje:\n' + data.mensaje
        );
        var mailto = 'mailto:valeainversiones@gmail.com?subject=' + subject + '&body=' + body;

        showToast('¡Mensaje listo para enviar!', 'Se abrirá su cliente de correo. Si no se abre, escríbanos a valeainversiones@gmail.com', 'success');
        btn.disabled = false;
        btn.innerHTML = original;
        form.reset();
        fields.forEach(function (f) { data[f] = ''; });

        // Intentar abrir el cliente de correo
        try { window.location.href = mailto; } catch (err) {}
      }, 1200);
    });
  }
})();

/* spinner keyframe injected */
var style = document.createElement('style');
style.textContent = '@keyframes spin{to{transform:rotate(360deg)}}';
document.head.appendChild(style);