/* global React, Icon */
const { useState } = React;

function Contact() {
  const [form, setForm] = useState({
    nombre: '',
    contacto: '',
    vehiculos: [],
    mensaje: '',
  });
  const [errors, setErrors] = useState({});
  const [sent, setSent] = useState(false);

  const update = (k, v) => {
    setForm(f => ({ ...f, [k]: v }));
    setErrors(e => ({ ...e, [k]: undefined }));
  };

  const toggleVehicle = (v) => {
    setForm(f => {
      const has = f.vehiculos.includes(v);
      return { ...f, vehiculos: has ? f.vehiculos.filter(x => x !== v) : [...f.vehiculos, v] };
    });
  };

  const validate = () => {
    const e = {};
    if (!form.nombre.trim()) e.nombre = 'Tu nombre es requerido';
    if (!form.contacto.trim()) e.contacto = 'Tu contacto es requerido';
    if (form.vehiculos.length === 0) e.vehiculos = 'Selecciona al menos un tipo de vehículo';
    setErrors(e);
    return Object.keys(e).length === 0;
  };

  const submit = (ev) => {
    ev.preventDefault();
    if (!validate()) return;
    const msg = [
      `Hola Setza, me interesa cotizar GPS.`,
      ``,
      `Nombre: ${form.nombre}`,
      `Contacto: ${form.contacto}`,
      `Vehículo(s): ${form.vehiculos.join(', ')}`,
      form.mensaje ? `Mensaje: ${form.mensaje}` : null,
    ].filter(Boolean).join('\n');
    const url = `https://wa.me/525611693553?text=${encodeURIComponent(msg)}`;
    // Open synchronously so we keep the user-gesture (avoids popup blockers).
    const win = window.open(url, '_blank', 'noopener,noreferrer');
    if (!win) {
      // Fallback: navigate top-level (works inside sandboxed previews).
      window.top.location.href = url;
    }
    setSent(true);
  };

  const VEH_OPTIONS = ['Carros','Camionetas','Motos','Camiones','Tráilers','Flotilla','Uber/Didi'];

  return (
    <section className="section contact-section" id="contacto">
      <div className="container">
        <div className="contact-grid">
          <div className="contact-left">
            <span className="eyebrow">Cotiza tu GPS</span>
            <h2 className="display contact-title">
              Hablemos de<br/>
              <em>tu protección.</em>
            </h2>
            <p className="contact-sub">
              Llena el formulario y un asesor te contactará por WhatsApp con la cotización adecuada para tu caso.
            </p>

            <div className="contact-info">
              <div className="contact-info-row">
                <span className="mono">WhatsApp</span>
                <a href="https://wa.me/525611693553" target="_blank" rel="noreferrer">
                  56 1169 3553
                </a>
              </div>
              <div className="contact-info-row">
                <span className="mono">Correo</span>
                <a href="mailto:ceosetza@gmail.com">ceosetza@gmail.com</a>
              </div>
              <div className="contact-info-row">
                <span className="mono">CEO</span>
                <div>
                  <div>Abraham Loyola</div>
                  <span className="contact-info-sub mono">Atención directa</span>
                </div>
              </div>
            </div>
          </div>

          <form className="contact-form" onSubmit={submit} noValidate>
            <div className="form-row">
              <label className="label" htmlFor="f-nombre">Nombre completo</label>
              <input
                id="f-nombre"
                className="input"
                type="text"
                placeholder="Cómo te llamas"
                value={form.nombre}
                onChange={e => update('nombre', e.target.value)}
                aria-invalid={!!errors.nombre}
              />
              {errors.nombre && <span className="form-err">{errors.nombre}</span>}
            </div>

            <div className="form-row">
              <label className="label" htmlFor="f-contacto">Teléfono o correo</label>
              <input
                id="f-contacto"
                className="input"
                type="text"
                placeholder="55 1234 5678 / tu@correo.com"
                value={form.contacto}
                onChange={e => update('contacto', e.target.value)}
                aria-invalid={!!errors.contacto}
              />
              {errors.contacto && <span className="form-err">{errors.contacto}</span>}
            </div>

            <div className="form-row">
              <span className="label">Tipo(s) de vehículo</span>
              <div className="veh-chips">
                {VEH_OPTIONS.map(v => (
                  <button
                    key={v}
                    type="button"
                    className={'veh-chip' + (form.vehiculos.includes(v) ? ' is-active' : '')}
                    onClick={() => toggleVehicle(v)}>
                    {form.vehiculos.includes(v) && <Icon name="check" size={14} />}
                    {v}
                  </button>
                ))}
              </div>
              {errors.vehiculos && <span className="form-err">{errors.vehiculos}</span>}
            </div>

            <div className="form-row">
              <label className="label" htmlFor="f-msg">Mensaje (opcional)</label>
              <textarea
                id="f-msg"
                className="textarea"
                rows="3"
                placeholder="Cuéntanos cuántas unidades, ubicación, etc."
                value={form.mensaje}
                onChange={e => update('mensaje', e.target.value)}
              />
            </div>

            <button type="submit" className="btn btn-primary form-submit">
              <Icon name="whatsapp" size={18} />
              {sent ? 'Abriendo WhatsApp…' : 'Enviar por WhatsApp'}
              <Icon name="arrow" size={16} />
            </button>

            <p className="form-foot mono">
              Al enviar, abriremos WhatsApp con tus datos pre-cargados. Sin spam, sin compromiso.
            </p>
          </form>
        </div>
      </div>

      <style>{`
        .contact-section {
          background: var(--bg-2);
          border-top: 1px solid var(--line);
        }
        .contact-grid {
          display: grid;
          grid-template-columns: 1fr 1.1fr;
          gap: 60px;
        }
        @media (max-width: 1000px) {
          .contact-grid { grid-template-columns: 1fr; gap: 40px; }
        }
        .contact-title {
          font-size: clamp(40px, 5vw, 72px);
          margin: 14px 0 16px;
          font-weight: 500;
          line-height: 1;
        }
        .contact-title em { color: var(--petrol); font-style: italic; font-weight: 400; }
        .contact-sub {
          color: var(--ink-2);
          font-size: 16px;
          line-height: 1.55;
          margin: 0 0 32px;
          max-width: 42ch;
        }
        .contact-info {
          padding: 24px 0;
          border-top: 1px solid var(--line);
          border-bottom: 1px solid var(--line);
          display: flex;
          flex-direction: column;
          gap: 14px;
        }
        .contact-info-row {
          display: grid;
          grid-template-columns: 110px 1fr;
          gap: 16px;
          align-items: start;
          font-size: 15px;
        }
        .contact-info-row .mono { color: var(--ink-mute); font-size: 11px; padding-top: 4px; }
        .contact-info-row a {
          color: var(--ink);
          text-decoration: underline;
          text-decoration-color: var(--line-strong);
          text-underline-offset: 4px;
          transition: text-decoration-color .2s ease;
        }
        .contact-info-row a:hover { text-decoration-color: var(--petrol); }
        .contact-info-sub {
          display: block;
          color: var(--ink-mute);
          font-size: 11px;
          margin-top: 4px;
        }

        .contact-form {
          background: var(--bg-3);
          padding: clamp(24px, 3vw, 40px);
          border-radius: var(--radius-xl);
          border: 1px solid var(--line);
          display: flex;
          flex-direction: column;
          gap: 18px;
        }
        .form-row { display: flex; flex-direction: column; }
        .form-err {
          color: var(--signal);
          font-family: var(--font-mono);
          font-size: 11px;
          margin-top: 6px;
        }
        .veh-chips {
          display: flex;
          flex-wrap: wrap;
          gap: 8px;
        }
        .veh-chip {
          display: inline-flex;
          align-items: center;
          gap: 6px;
          padding: 9px 14px;
          background: transparent;
          border: 1px solid var(--line-strong);
          border-radius: 999px;
          font-family: var(--font-display);
          font-size: 13px;
          color: var(--ink-2);
          transition: all .2s ease;
        }
        .veh-chip:hover { border-color: var(--ink); color: var(--ink); }
        .veh-chip.is-active {
          background: var(--petrol);
          color: var(--bg);
          border-color: var(--petrol);
        }
        [data-theme='dark'] .veh-chip.is-active { color: #07171a; }

        .form-submit {
          align-self: flex-start;
          padding: 16px 26px;
          font-size: 15px;
          margin-top: 6px;
        }
        .form-foot {
          color: var(--ink-mute);
          font-size: 10px;
          margin: 4px 0 0;
        }
      `}</style>
    </section>
  );
}

window.Contact = Contact;