"use client";

import { useState } from "react";

interface OeffnungsZeit { tag: string; von: string; bis: string }

interface ContactProps {
  telefon?: string;
  email?: string;
  adresseZeile1?: string;
  adresseZeile2?: string;
  oeffnungszeiten?: OeffnungsZeit[];
}

type Status = "idle" | "loading" | "success" | "error";

export default function Contact({
  telefon = "+49 171 9345193",
  email = "kontakt@mbo-tech-it.de",
  adresseZeile1 = "Mörikestr. 2",
  adresseZeile2 = "74564 Crailsheim",
  oeffnungszeiten,
}: ContactProps = {}) {
  const contactItems = [
    {
      icon: (
        <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 5a2 2 0 012-2h3.28a1 1 0 01.948.684l1.498 4.493a1 1 0 01-.502 1.21l-2.257 1.13a11.042 11.042 0 005.516 5.516l1.13-2.257a1 1 0 011.21-.502l4.493 1.498a1 1 0 01.684.949V19a2 2 0 01-2 2h-1C9.716 21 3 14.284 3 6V5z" />
        </svg>
      ),
      label: "Telefon",
      value: telefon,
      href: `tel:${telefon.replace(/\s/g, "")}`,
    },
    {
      icon: (
        <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 8l7.89 5.26a2 2 0 002.22 0L21 8M5 19h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z" />
        </svg>
      ),
      label: "E-Mail",
      value: email,
      href: `mailto:${email}`,
    },
    {
      icon: (
        <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M17.657 16.657L13.414 20.9a1.998 1.998 0 01-2.827 0l-4.244-4.243a8 8 0 1111.314 0z" />
          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 11a3 3 0 11-6 0 3 3 0 016 0z" />
        </svg>
      ),
      label: "Standort",
      value: `${adresseZeile1}, ${adresseZeile2}`,
      href: `https://maps.google.com/?q=${encodeURIComponent(adresseZeile1 + " " + adresseZeile2)}`,
    },
  ];

  const [name, setName] = useState("");
  const [emailInput, setEmailInput] = useState("");
  const [betreff, setBetreff] = useState("");
  const [nachricht, setNachricht] = useState("");
  const [status, setStatus] = useState<Status>("idle");
  const [errorMsg, setErrorMsg] = useState("");

  async function handleSubmit(e: React.FormEvent) {
    e.preventDefault();
    setStatus("loading");
    setErrorMsg("");

    try {
      const res = await fetch("/api/contact", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({ name, email: emailInput, betreff, nachricht }),
      });
      const data = await res.json();

      if (!res.ok || !data.ok) {
        setErrorMsg(data.error ?? "Unbekannter Fehler");
        setStatus("error");
      } else {
        setStatus("success");
      }
    } catch {
      setErrorMsg("Netzwerkfehler – bitte versuchen Sie es erneut.");
      setStatus("error");
    }
  }

  return (
    <section id="contact" className="py-24 px-4 sm:px-6 lg:px-8 relative">
      <div className="absolute inset-0 bg-[#e8eef4] dark:bg-[#111925]" />
      <div className="absolute inset-0 bg-grid opacity-40" />
      <div className="absolute inset-0 bg-[radial-gradient(ellipse_at_center,rgba(249,115,22,0.07)_0%,transparent_70%)]" />

      <div className="max-w-4xl mx-auto relative">
        {/* Header */}
        <div className="text-center mb-12">
          <span className="text-orange-400 font-mono text-xs font-bold tracking-[0.25em] uppercase">
            Kontakt
          </span>
          <h2 className="text-4xl sm:text-5xl font-black text-slate-900 dark:text-white mt-3 mb-4">
            Projekt anfragen
          </h2>
          <p className="text-slate-600 dark:text-slate-400 text-lg max-w-xl mx-auto">
            Sie haben ein IT-Projekt oder eine Frage? Schreiben Sie uns &mdash;
            wir melden uns schnellstmöglich bei Ihnen.
          </p>
        </div>

        <div className="bg-white dark:bg-gray-900 border border-slate-200 dark:border-gray-800 rounded-3xl p-8 sm:p-10">
          {status === "success" ? (
            <div className="flex flex-col items-center justify-center py-10 text-center">
              <div className="w-16 h-16 rounded-full bg-orange-500/10 border border-orange-500/30 flex items-center justify-center mb-6">
                <svg className="w-8 h-8 text-orange-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M5 13l4 4L19 7" />
                </svg>
              </div>
              <h3 className="text-2xl font-bold text-slate-900 dark:text-white mb-2">Anfrage gesendet!</h3>
              <p className="text-slate-600 dark:text-slate-400 mb-8">
                Wir haben Ihre Nachricht erhalten und melden uns schnellstmöglich bei Ihnen.
              </p>
              <button
                onClick={() => {
                  setStatus("idle");
                  setName("");
                  setEmailInput("");
                  setBetreff("");
                  setNachricht("");
                }}
                className="btn-secondary px-6 py-2"
              >
                Neue Anfrage
              </button>
            </div>
          ) : (
            <form className="space-y-6" onSubmit={handleSubmit}>
              <div className="grid sm:grid-cols-2 gap-6">
                <div>
                  <label className="block text-sm font-medium text-slate-700 dark:text-slate-300 mb-2">Name</label>
                  <input
                    type="text"
                    required
                    value={name}
                    onChange={(e) => setName(e.target.value)}
                    placeholder="Max Mustermann"
                    className="w-full px-4 py-3 rounded-xl bg-slate-50 dark:bg-[#111925] border border-slate-300 dark:border-gray-700 text-slate-900 dark:text-white placeholder-slate-400 dark:placeholder-slate-600 focus:outline-none focus:border-orange-500/60 focus:ring-1 focus:ring-orange-500/20 transition-colors"
                  />
                </div>
                <div>
                  <label className="block text-sm font-medium text-slate-700 dark:text-slate-300 mb-2">E-Mail</label>
                  <input
                    type="email"
                    required
                    value={emailInput}
                    onChange={(e) => setEmailInput(e.target.value)}
                    placeholder="max@beispiel.de"
                    className="w-full px-4 py-3 rounded-xl bg-slate-50 dark:bg-[#111925] border border-slate-300 dark:border-gray-700 text-slate-900 dark:text-white placeholder-slate-400 dark:placeholder-slate-600 focus:outline-none focus:border-orange-500/60 focus:ring-1 focus:ring-orange-500/20 transition-colors"
                  />
                </div>
              </div>

              <div>
                <label className="block text-sm font-medium text-slate-300 mb-2">Betreff</label>
                <select
                  required
                  value={betreff}
                  onChange={(e) => setBetreff(e.target.value)}
                  className="w-full px-4 py-3 rounded-xl bg-slate-50 dark:bg-[#111925] border border-slate-300 dark:border-gray-700 text-slate-900 dark:text-white focus:outline-none focus:border-orange-500/60 focus:ring-1 focus:ring-orange-500/20 transition-colors appearance-none"
                >
                  <option value="">Thema auswählen...</option>
                  <option value="hardware">Hard- &amp; Software</option>
                  <option value="netzwerk">Netzwerk &amp; WLAN</option>
                  <option value="backup">Datensicherung &amp; Backup</option>
                  <option value="docker">Docker Installation</option>
                  <option value="fernwartung">Fernwartung &amp; Support</option>
                  <option value="hetzner">Hetzner Cloud Infrastruktur</option>
                  <option value="beratung">IT-Beratung</option>
                  <option value="sicherheit">IT-Sicherheit &amp; Datenschutz</option>
                  <option value="kubernetes">Kubernetes Setup</option>
                  <option value="proxmox">Proxmox Virtualisierung</option>
                  <option value="server">Server &amp; Hosting</option>
                  <option value="webseiten">Webseiten &amp; Webanwendungen</option>
                  <option value="other">Sonstiges</option>
                </select>
              </div>

              <div>
                <label className="block text-sm font-medium text-slate-300 mb-2">Nachricht</label>
                <textarea
                  rows={5}
                  value={nachricht}
                  onChange={(e) => setNachricht(e.target.value)}
                  placeholder="Beschreiben Sie Ihr Projekt oder Ihre Anfrage..."
                  className="w-full px-4 py-3 rounded-xl bg-slate-50 dark:bg-[#111925] border border-slate-300 dark:border-gray-700 text-slate-900 dark:text-white placeholder-slate-400 dark:placeholder-slate-600 focus:outline-none focus:border-orange-500/60 focus:ring-1 focus:ring-orange-500/20 transition-colors resize-none"
                />
              </div>

              {status === "error" && (
                <div className="flex items-start gap-3 px-4 py-3 rounded-xl bg-red-500/10 border border-red-500/20 text-red-400 text-sm">
                  <svg className="w-5 h-5 mt-0.5 shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 8v4m0 4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
                  </svg>
                  <span>
                    Nachricht konnte nicht gesendet werden. Bitte versuchen Sie es erneut oder
                    kontaktieren Sie uns direkt.
                    {errorMsg && <span className="block mt-1 text-red-400/70 text-xs">{errorMsg}</span>}
                  </span>
                </div>
              )}

              <button
                type="submit"
                disabled={status === "loading"}
                className="btn-primary w-full py-4 text-lg disabled:opacity-60 disabled:cursor-not-allowed flex items-center justify-center gap-2"
              >
                {status === "loading" ? (
                  <>
                    <svg className="w-5 h-5 animate-spin" 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 0 018-8v8z" />
                    </svg>
                    Wird gesendet...
                  </>
                ) : (
                  "Nachricht senden"
                )}
              </button>
            </form>
          )}

          {/* Divider */}
          <div className="flex items-center gap-4 my-8">
            <div className="flex-1 h-px bg-slate-200 dark:bg-gray-800" />
            <span className="text-slate-400 dark:text-slate-600 text-sm">oder direkt</span>
            <div className="flex-1 h-px bg-slate-200 dark:bg-gray-800" />
          </div>

          {/* Contact info */}
          <div className="flex flex-col sm:flex-row items-center justify-center gap-6">
            {contactItems.map((item) => (
              <a
                key={item.label}
                href={item.href}
                data-source-element="kontakt-section"
                className="flex items-center gap-3 text-slate-700 dark:text-slate-300 hover:text-orange-400 transition-colors duration-200 group"
              >
                <span className="w-10 h-10 rounded-lg bg-orange-500/10 border border-orange-500/20 flex items-center justify-center text-orange-400 group-hover:bg-orange-500/20 transition-colors duration-200">
                  {item.icon}
                </span>
                <div>
                  <div className="text-xs text-slate-500">{item.label}</div>
                  <div className="font-medium">{item.value}</div>
                </div>
              </a>
            ))}
          </div>

          {oeffnungszeiten && oeffnungszeiten.length > 0 && (
            <div className="mt-6 pt-6 border-t border-slate-200 dark:border-slate-700">
              <h4 className="text-sm font-semibold text-slate-500 dark:text-slate-400 uppercase tracking-wider mb-3">
                Öffnungszeiten
              </h4>
              <ul className="space-y-1">
                {oeffnungszeiten.map((oz) => (
                  <li key={oz.tag} className="flex justify-between text-sm text-slate-600 dark:text-slate-400">
                    <span>{oz.tag}</span>
                    <span>{oz.von} – {oz.bis}</span>
                  </li>
                ))}
              </ul>
            </div>
          )}
        </div>
      </div>
    </section>
  );
}