'use client';

// نقشه نشان (Neshan) — از Static Map API استفاده می‌کند. تا وقتی کلید API خالی باشد،
// به‌جای نقشه یک پیام راهنما نشان داده می‌شود (نه تصویر خراب).

import { useState } from 'react';
import { EnvironmentOutlined } from '@ant-design/icons';
import { useLanguage } from '@/app/context/LanguageContext';
import { useTheme } from '@/app/context/ThemeContext';
import { mapLocations } from '@/data/content';

// ---------------------------------------------------------------------------
// Neshan (نشان) map integration.
//
// TODO: put your Neshan API key here, or (preferred) set it as an environment
// variable in `.env.local`:
//   NEXT_PUBLIC_NESHAN_API_KEY=your-key-here
// Get a key from https://platform.neshan.org
// ---------------------------------------------------------------------------
const NESHAN_API_KEY = process.env.NEXT_PUBLIC_NESHAN_API_KEY || '';

// Neshan's Static Map API — a plain image, no JS SDK/script tag needed.
// Verify query param names/values against the current Neshan docs
// (https://platform.neshan.org/api/static-map/) if this ever needs updating —
// `type` accepts their day/night map styles, e.g. "standard-day" / "standard-night".
function staticMapUrl({ lat, lng }, mapStyle) {
  const params = new URLSearchParams({
    key: NESHAN_API_KEY,
    type: mapStyle,
    center: `${lat},${lng}`,
    zoom: '15',
    size: '600x400',
    marker: `${lat},${lng}`,
  });
  return `https://api.neshan.org/v5/static?${params.toString()}`;
}

function neshanViewUrl({ lat, lng }) {
  return `https://neshan.org/maps/@${lat},${lng},15z`;
}

function MapThumb({ coords, mapStyle, alt }) {
  const [errored, setErrored] = useState(false);
  const { t } = useLanguage();

  if (!NESHAN_API_KEY || errored) {
    return (
      <div className="w-full h-full min-h-[280px] flex flex-col items-center justify-center gap-3 bg-surface text-secondary text-sm text-center p-6">
        <EnvironmentOutlined className="text-3xl text-brand-400" />
        <p>{t.map.configNotice}</p>
      </div>
    );
  }

  return (
    // eslint-disable-next-line @next/next/no-img-element
    <img
      src={staticMapUrl(coords, mapStyle)}
      alt={alt}
      onError={() => setErrored(true)}
      className="w-full h-full object-cover"
    />
  );
}

export default function MapSection() {
  const { t } = useLanguage();
  const { theme } = useTheme();
  const mapStyle = theme === 'dark' ? 'standard-night' : 'standard-day';

  const pins = [
    { key: 'factory', label: t.map.factoryLabel, coords: mapLocations.factory, address: t.contactInfo.factoryAddress },
    { key: 'sales', label: t.map.salesLabel, coords: mapLocations.salesOffice, address: t.contactInfo.salesOfficeAddress },
  ];

  return (
    <section id="map" className="relative px-6 md:px-16 py-20 md:py-28 bg-page border-t border-subtle">
      <div className="max-w-6xl mx-auto">
        <div className="text-center mb-12">
          <span className="text-brand-400 text-sm font-semibold tracking-wide">{t.map.eyebrow}</span>
          <h2 className="text-2xl md:text-4xl font-extrabold brand-gradient-text mt-3">{t.map.title}</h2>
        </div>

        <div className="grid lg:grid-cols-[1.3fr,1fr] gap-6">
          <div className="rounded-2xl overflow-hidden border border-subtle h-[360px] lg:h-auto min-h-[360px]">
            <MapThumb coords={pins[0].coords} mapStyle={mapStyle} alt={pins[0].label} />
          </div>

          <div className="flex flex-col gap-4">
            {pins.map((pin) => (
              <div key={pin.key} className="bg-surface border border-subtle rounded-2xl p-5">
                <div className="flex items-start gap-3">
                  <div className="w-10 h-10 shrink-0 rounded-lg bg-brand/15 border border-subtle flex items-center justify-center text-brand-400">
                    <EnvironmentOutlined />
                  </div>
                  <div>
                    <h3 className="text-primary font-bold text-sm mb-1">{pin.label}</h3>
                    <p className="text-secondary text-sm leading-7 mb-2">{pin.address}</p>
                    <a
                      href={neshanViewUrl(pin.coords)}
                      target="_blank"
                      rel="noopener noreferrer"
                      className="text-brand-400 hover:text-brand-300 text-xs font-semibold transition-colors"
                    >
                      {t.map.openInMaps} ↗
                    </a>
                  </div>
                </div>
              </div>
            ))}
          </div>
        </div>
      </div>
    </section>
  );
}