'use client'

import { useState } from 'react'

interface LeadFormBlockProps {
  title?: string | null
  subtitle?: string | null
  formSource?: string | null
  showPhone?: boolean | null
  showEmail?: boolean | null
  ctaLabel?: string | null
  successMessage?: string | null
}

export function LeadFormBlockComponent({
  title,
  subtitle,
  formSource,
  showPhone,
  showEmail,
  ctaLabel,
  successMessage,
}: LeadFormBlockProps) {
  const [name, setName] = useState('')
  const [phone, setPhone] = useState('')
  const [email, setEmail] = useState('')
  const [submitted, setSubmitted] = useState(false)
  const [loading, setLoading] = useState(false)

  async function handleSubmit(e: React.FormEvent) {
    e.preventDefault()
    setLoading(true)
    try {
      await fetch('/api/leads', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
          name,
          phone: showPhone ? phone : undefined,
          email: showEmail ? email : undefined,
          source: formSource ?? 'block-form',
        }),
      })
    } catch {
      /* noop */
    }
    setSubmitted(true)
    setLoading(false)
  }

  return (
    <section className="py-[20px] md:py-[60px] lg:py-[40px]">
      <div className="mx-auto max-w-[600px] px-8">
        {title && (
          <h2
            className="mb-4 text-[24px] font-bold text-[#272727] uppercase md:text-[32px]"
            style={{ fontFamily: 'var(--font-montserrat, Montserrat), sans-serif' }}
          >
            {title}
          </h2>
        )}
        {subtitle && <p className="mb-8 text-[16px] text-[#272727]">{subtitle}</p>}
        {submitted ? (
          <div className="rounded-[20px] bg-[#d6f2c0] p-8 text-center">
            <p className="text-[18px] font-bold text-[#396817]">
              {successMessage ?? "Дякуємо! Ми зв'яжемося з вами найближчим часом."}
            </p>
          </div>
        ) : (
          <form onSubmit={handleSubmit} className="flex flex-col gap-4">
            <input
              type="text"
              required
              value={name}
              onChange={(e) => setName(e.target.value)}
              placeholder="Ваше ім'я"
              className="w-full rounded-[10px] border border-[#272727]/20 px-5 py-3 text-[16px] text-[#272727] outline-none focus:ring-2 focus:ring-[#f28b4a]"
            />
            {showPhone && (
              <input
                type="tel"
                required
                value={phone}
                onChange={(e) => setPhone(e.target.value)}
                placeholder="Телефон"
                className="w-full rounded-[10px] border border-[#272727]/20 px-5 py-3 text-[16px] text-[#272727] outline-none focus:ring-2 focus:ring-[#f28b4a]"
              />
            )}
            {showEmail && (
              <input
                type="email"
                value={email}
                onChange={(e) => setEmail(e.target.value)}
                placeholder="Email"
                className="w-full rounded-[10px] border border-[#272727]/20 px-5 py-3 text-[16px] text-[#272727] outline-none focus:ring-2 focus:ring-[#f28b4a]"
              />
            )}
            <button
              type="submit"
              disabled={loading}
              className="rounded-[64px] bg-[#f28b4a] px-[30px] py-[10px] text-[20px] font-bold text-white transition-shadow hover:shadow-[0_0_20px_0_#f28b4a] disabled:opacity-50"
              style={{ fontFamily: 'var(--font-montserrat, Montserrat), sans-serif' }}
            >
              {loading ? '...' : (ctaLabel ?? 'Відправити')}
            </button>
          </form>
        )}
      </div>
    </section>
  )
}