import { useState, useEffect } from 'react'
import Navbar from '../components/Navbar'
import Footer from '../components/Footer'
import { API_BASE, type Category } from '../types'

type FormState = { name: string; email: string; subject: string; message: string }
type Status = 'idle' | 'sending' | 'sent' | 'error'

const SUBJECTS = ['Product Inquiry', 'Order Support', 'Custom Blending', 'Wholesale', 'Partnership', 'Other']

export default function ContactPage() {
  const [categories, setCategories] = useState<Category[]>([])
  const [form, setForm] = useState<FormState>({ name: '', email: '', subject: '', message: '' })
  const [status, setStatus] = useState<Status>('idle')

  useEffect(() => {
    fetch(`${API_BASE}/categories`).then(r => r.json()).then(setCategories).catch(console.error)
  }, [])

  const handleChange = (e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement | HTMLSelectElement>) => {
    setForm(prev => ({ ...prev, [e.target.name]: e.target.value }))
  }

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault()
    setStatus('sending')
    // Simulate API call (replace with real endpoint later)
    await new Promise(r => setTimeout(r, 1500))
    setStatus('sent')
    setForm({ name: '', email: '', subject: '', message: '' })
  }

  return (
    <div className="min-h-screen">
      <Navbar categories={categories} />

      {/* Header */}
      <div className="pt-32 pb-16 px-6 text-center space-y-4 border-b border-spa-stone/10 bg-white border-b border-spa-stone/10">
        <p className="text-spa-forest uppercase tracking-[0.4em] text-xs font-semibold opacity-70">Get in Touch</p>
        <h1 className="text-5xl font-bold">Contact Us</h1>
        <p className="text-slate-400 max-w-lg mx-auto">
          Have a question, custom request, or partnership idea? We'd love to hear from you.
        </p>
      </div>

      <div className="max-w-6xl mx-auto px-6 py-16 grid md:grid-cols-5 gap-16">
        {/* Contact Info */}
        <div className="md:col-span-2 space-y-8">
          <div>
            <h2 className="font-bold text-xl mb-6">Reach Us Directly</h2>
            <div className="space-y-5">
              {[
                { icon: '📧', label: 'Email', value: 'hello@homaroma.shop', href: 'mailto:hello@homaroma.shop' },
                { icon: '📱', label: 'LINE Official', value: '@homaroma', href: '#' },
                { icon: '📸', label: 'Instagram', value: '@homaroma', href: '#' },
                { icon: '📍', label: 'Studio', value: 'Bangkok, Thailand', href: '#' },
              ].map(item => (
                <a key={item.label} href={item.href} className="flex items-start gap-4 group">
                  <div className="bg-white shadow-sm border border-spa-stone/10 w-10 h-10 rounded-xl flex items-center justify-center text-lg shrink-0 group-hover:bg-spa-forest/10 transition-colors">
                    {item.icon}
                  </div>
                  <div>
                    <p className="text-xs text-slate-500 uppercase tracking-widest">{item.label}</p>
                    <p className="text-white text-sm font-medium group-hover:text-spa-forest transition-colors">{item.value}</p>
                  </div>
                </a>
              ))}
            </div>
          </div>

          <div className="bg-white shadow-sm border border-spa-stone/10 rounded-2xl p-6 border border-spa-stone/10 space-y-3">
            <h3 className="font-bold text-sm uppercase tracking-widest">Response Time</h3>
            <div className="space-y-2 text-sm">
              <div className="flex justify-between">
                <span className="text-slate-400">Email</span>
                <span className="text-spa-forest font-medium">~2 hours</span>
              </div>
              <div className="flex justify-between">
                <span className="text-slate-400">LINE</span>
                <span className="text-spa-forest font-medium">~30 minutes</span>
              </div>
              <div className="flex justify-between">
                <span className="text-slate-400">Instagram DM</span>
                <span className="text-spa-forest font-medium">~4 hours</span>
              </div>
            </div>
            <p className="text-[10px] text-slate-600 pt-2 uppercase tracking-wider">Mon–Sat, 9:00–18:00 (ICT)</p>
          </div>
        </div>

        {/* Contact Form */}
        <div className="md:col-span-3">
          {status === 'sent' ? (
            <div className="h-full flex items-center justify-center">
              <div className="text-center space-y-5 py-16">
                <div className="text-6xl animate-bounce">✉️</div>
                <h2 className="text-2xl font-bold">Message Sent!</h2>
                <p className="text-slate-400">Thank you for reaching out. We'll get back to you within 2 hours.</p>
                <button
                  onClick={() => setStatus('idle')}
                  className="mt-4 px-8 py-3 bg-white shadow-sm border border-spa-stone/10 border border-spa-stone/10 hover:border-spa-forest font-bold uppercase tracking-widest text-xs transition-all rounded-lg"
                >
                  Send Another
                </button>
              </div>
            </div>
          ) : (
            <form onSubmit={handleSubmit} className="space-y-5">
              <div className="grid md:grid-cols-2 gap-5">
                <div className="space-y-2">
                  <label className="text-xs uppercase tracking-widest text-slate-400">Full Name *</label>
                  <input
                    required
                    type="text"
                    name="name"
                    value={form.name}
                    onChange={handleChange}
                    placeholder="Your name"
                    className="w-full bg-white shadow-sm border border-spa-stone/10 border border-spa-stone/10 focus:border-spa-forest rounded-xl px-4 py-3.5 bg-transparent outline-none text-sm text-white placeholder-slate-600 transition-colors"
                  />
                </div>
                <div className="space-y-2">
                  <label className="text-xs uppercase tracking-widest text-slate-400">Email *</label>
                  <input
                    required
                    type="email"
                    name="email"
                    value={form.email}
                    onChange={handleChange}
                    placeholder="your@email.com"
                    className="w-full bg-white shadow-sm border border-spa-stone/10 border border-spa-stone/10 focus:border-spa-forest rounded-xl px-4 py-3.5 bg-transparent outline-none text-sm text-white placeholder-slate-600 transition-colors"
                  />
                </div>
              </div>
              <div className="space-y-2">
                <label className="text-xs uppercase tracking-widest text-slate-400">Subject *</label>
                <select
                  required
                  name="subject"
                  value={form.subject}
                  onChange={handleChange}
                  className="w-full bg-white shadow-sm border border-spa-stone/10 border border-spa-stone/10 focus:border-spa-forest rounded-xl px-4 py-3.5 bg-white outline-none text-sm text-white transition-colors"
                >
                  <option value="" disabled>Select a subject</option>
                  {SUBJECTS.map(s => <option key={s} value={s}>{s}</option>)}
                </select>
              </div>
              <div className="space-y-2">
                <label className="text-xs uppercase tracking-widest text-slate-400">Message *</label>
                <textarea
                  required
                  name="message"
                  value={form.message}
                  onChange={handleChange}
                  rows={6}
                  placeholder="Tell us about your inquiry..."
                  className="w-full bg-white shadow-sm border border-spa-stone/10 border border-spa-stone/10 focus:border-spa-forest rounded-xl px-4 py-3.5 bg-transparent outline-none text-sm text-white placeholder-slate-600 resize-none transition-colors"
                />
              </div>
              <button
                type="submit"
                disabled={status === 'sending'}
                className="w-full py-4 bg-white text-spa-forest font-bold uppercase tracking-widest text-sm rounded-xl hover:bg-spa-forest text-white hover:shadow-[0_0_25px_rgba(102,252,241,0.4)] transition-all duration-500 disabled:opacity-50 disabled:cursor-not-allowed flex items-center justify-center gap-3"
              >
                {status === 'sending' ? (
                  <>
                    <svg className="animate-spin w-4 h-4" fill="none" viewBox="0 0 24 24">
                      <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
                      <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z" />
                    </svg>
                    Sending...
                  </>
                ) : 'Send Message →'}
              </button>
            </form>
          )}
        </div>
      </div>

      <Footer categories={categories} />
    </div>
  )
}