'use client';

import { useEffect, useState } from 'react';
import { useI18n } from '../../components/I18nProvider';
import type { Locale } from '../../../lib/i18n';

type ImageInput = { url: string; altText?: string };

export default function NewListingPage() {
  const { t, locale: uiLocale } = useI18n();
  const [slug, setSlug] = useState('');
  const [locale, setLocale] = useState(uiLocale);
  const [title, setTitle] = useState('');
  const [description, setDescription] = useState('');
  const [teaser, setTeaser] = useState('');
  const [country, setCountry] = useState('Finland');
  const [region, setRegion] = useState('');
  const [city, setCity] = useState('');
  const [streetAddress, setStreetAddress] = useState('');
  const [addressNote, setAddressNote] = useState('');
  const [latitude, setLatitude] = useState<number | ''>('');
  const [longitude, setLongitude] = useState<number | ''>('');
  const [contactName, setContactName] = useState('');
  const [contactEmail, setContactEmail] = useState('');
  const [maxGuests, setMaxGuests] = useState(4);
  const [bedrooms, setBedrooms] = useState(2);
  const [beds, setBeds] = useState(3);
  const [bathrooms, setBathrooms] = useState(1);
  const [price, setPrice] = useState<number | ''>('');
  const [hasSauna, setHasSauna] = useState(true);
  const [hasFireplace, setHasFireplace] = useState(true);
  const [hasWifi, setHasWifi] = useState(true);
  const [petsAllowed, setPetsAllowed] = useState(false);
  const [byTheLake, setByTheLake] = useState(false);
  const [hasAirConditioning, setHasAirConditioning] = useState(false);
  const [evCharging, setEvCharging] = useState<'NONE' | 'FREE' | 'PAID'>('NONE');
  const [imagesText, setImagesText] = useState('');
  const [coverImageIndex, setCoverImageIndex] = useState(1);
  const [message, setMessage] = useState<string | null>(null);
  const [error, setError] = useState<string | null>(null);
  const [loading, setLoading] = useState(false);
  const [isAuthed, setIsAuthed] = useState(false);

  useEffect(() => {
    setLocale(uiLocale);
  }, [uiLocale]);

  useEffect(() => {
    // simple check if session exists
    fetch('/api/auth/me', { cache: 'no-store' })
      .then((res) => res.json())
      .then((data) => setIsAuthed(Boolean(data.user)))
      .catch(() => setIsAuthed(false));
  }, []);

  function parseImages(): ImageInput[] {
    return imagesText
      .split('\n')
      .map((line) => line.trim())
      .filter(Boolean)
      .map((line) => ({ url: line }));
  }

  async function onSubmit(e: React.FormEvent) {
    e.preventDefault();
    setMessage(null);
    setError(null);
    setLoading(true);
    try {
      const res = await fetch('/api/listings', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
          slug,
          locale,
          title,
          description,
          teaser,
          country,
          region,
          city,
          streetAddress,
          addressNote,
          latitude: latitude === '' ? null : latitude,
          longitude: longitude === '' ? null : longitude,
          contactName,
          contactEmail,
          maxGuests,
          bedrooms,
          beds,
          bathrooms,
          priceHintPerNightCents: price === '' ? null : Number(price),
          hasSauna,
          hasFireplace,
          hasWifi,
          petsAllowed,
          byTheLake,
          hasAirConditioning,
          evCharging,
          coverImageIndex,
          images: parseImages(),
        }),
      });
      const data = await res.json();
      if (!res.ok) {
        setError(data.error || 'Failed to create listing');
      } else {
        setMessage(t('createListingSuccess', { id: data.listing.id, status: data.listing.status }));
        setSlug('');
        setTitle('');
        setDescription('');
        setTeaser('');
        setRegion('');
        setCity('');
        setStreetAddress('');
        setAddressNote('');
        setLatitude('');
        setLongitude('');
        setContactName('');
        setContactEmail('');
        setImagesText('');
        setCoverImageIndex(1);
      }
    } catch (err) {
      setError('Failed to create listing');
    } finally {
      setLoading(false);
    }
  }

  if (!isAuthed) {
    return (
      <main className="panel" style={{ maxWidth: 720, margin: '40px auto' }}>
        <h1>{t('createListingTitle')}</h1>
        <p>{t('loginToCreate')}</p>
      </main>
    );
  }

  return (
    <main className="panel" style={{ maxWidth: 720, margin: '40px auto' }}>
      <h1>{t('createListingTitle')}</h1>
      <form onSubmit={onSubmit} style={{ display: 'grid', gap: 10 }}>
        <label>
          {t('slugLabel')}
          <input value={slug} onChange={(e) => setSlug(e.target.value)} required />
        </label>
        <label>
          {t('localeInput')}
          <input value={locale} onChange={(e) => setLocale(e.target.value as Locale)} required />
        </label>
        <label>
          {t('titleLabel')}
          <input value={title} onChange={(e) => setTitle(e.target.value)} required />
        </label>
        <label>
          {t('descriptionLabel')}
          <textarea value={description} onChange={(e) => setDescription(e.target.value)} required rows={4} />
        </label>
        <label>
          {t('teaserLabel')}
          <input value={teaser} onChange={(e) => setTeaser(e.target.value)} />
        </label>
        <div style={{ display: 'grid', gap: 8, gridTemplateColumns: 'repeat(auto-fit, minmax(180px, 1fr))' }}>
          <label>
            {t('countryLabel')}
            <input value={country} onChange={(e) => setCountry(e.target.value)} required />
          </label>
          <label>
            {t('regionLabel')}
            <input value={region} onChange={(e) => setRegion(e.target.value)} required />
          </label>
          <label>
            {t('cityLabel')}
            <input value={city} onChange={(e) => setCity(e.target.value)} required />
          </label>
        </div>
        <label>
          {t('streetAddressLabel')}
          <input value={streetAddress} onChange={(e) => setStreetAddress(e.target.value)} required />
        </label>
        <label>
          {t('addressNoteLabel')}
          <input value={addressNote} onChange={(e) => setAddressNote(e.target.value)} placeholder={t('addressNotePlaceholder')} />
        </label>
        <label>
          {t('contactNameLabel')}
          <input value={contactName} onChange={(e) => setContactName(e.target.value)} required />
        </label>
        <label>
          {t('contactEmailLabel')}
          <input type="email" value={contactEmail} onChange={(e) => setContactEmail(e.target.value)} required />
        </label>
        <div style={{ display: 'grid', gap: 8, gridTemplateColumns: 'repeat(auto-fit, minmax(150px, 1fr))' }}>
          <label>
            {t('maxGuestsLabel')}
            <input type="number" value={maxGuests} onChange={(e) => setMaxGuests(Number(e.target.value))} min={1} />
          </label>
          <label>
            {t('bedroomsLabel')}
            <input type="number" value={bedrooms} onChange={(e) => setBedrooms(Number(e.target.value))} min={0} />
          </label>
          <label>
            {t('bedsLabel')}
            <input type="number" value={beds} onChange={(e) => setBeds(Number(e.target.value))} min={0} />
          </label>
          <label>
            {t('bathroomsLabel')}
            <input type="number" value={bathrooms} onChange={(e) => setBathrooms(Number(e.target.value))} min={0} />
          </label>
          <label>
            {t('priceHintLabel')}
            <input type="number" value={price} onChange={(e) => setPrice(e.target.value === '' ? '' : Number(e.target.value))} min={0} />
          </label>
        </div>
        <div style={{ display: 'grid', gap: 8, gridTemplateColumns: 'repeat(auto-fit, minmax(150px, 1fr))' }}>
          <label>
            {t('latitudeLabel')}
            <input type="number" value={latitude} onChange={(e) => setLatitude(e.target.value === '' ? '' : Number(e.target.value))} step="0.000001" />
          </label>
          <label>
            {t('longitudeLabel')}
            <input type="number" value={longitude} onChange={(e) => setLongitude(e.target.value === '' ? '' : Number(e.target.value))} step="0.000001" />
          </label>
        </div>
        <div style={{ display: 'grid', gap: 10, gridTemplateColumns: 'repeat(auto-fit, minmax(180px, 1fr))' }}>
          <label style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
            <input type="checkbox" checked={hasSauna} onChange={(e) => setHasSauna(e.target.checked)} /> {t('amenitySauna')}
          </label>
          <label style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
            <input type="checkbox" checked={hasFireplace} onChange={(e) => setHasFireplace(e.target.checked)} /> {t('amenityFireplace')}
          </label>
          <label style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
            <input type="checkbox" checked={hasWifi} onChange={(e) => setHasWifi(e.target.checked)} /> {t('amenityWifi')}
          </label>
          <label style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
            <input type="checkbox" checked={petsAllowed} onChange={(e) => setPetsAllowed(e.target.checked)} /> {t('amenityPets')}
          </label>
          <label style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
            <input type="checkbox" checked={byTheLake} onChange={(e) => setByTheLake(e.target.checked)} /> {t('amenityLake')}
          </label>
          <label style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
            <input type="checkbox" checked={hasAirConditioning} onChange={(e) => setHasAirConditioning(e.target.checked)} /> {t('amenityAirConditioning')}
          </label>
          <label>
            {t('evChargingLabel')}
            <select value={evCharging} onChange={(e) => setEvCharging(e.target.value as any)}>
              <option value="NONE">{t('evChargingNone')}</option>
              <option value="FREE">{t('evChargingFree')}</option>
              <option value="PAID">{t('evChargingPaid')}</option>
            </select>
          </label>
        </div>
        <label>
          {t('imagesLabel')}
          <textarea value={imagesText} onChange={(e) => setImagesText(e.target.value)} rows={4} placeholder="https://example.com/image.jpg" />
        </label>
        <label>
          {t('coverImageLabel')}
          <input
            type="number"
            min={1}
            value={coverImageIndex}
            onChange={(e) => setCoverImageIndex(Number(e.target.value) || 1)}
            placeholder={t('coverImageHelp')}
          />
          <small style={{ color: '#cbd5e1' }}>{t('coverImageHelp')}</small>
        </label>
        <button className="button" type="submit" disabled={loading}>
          {loading ? t('submittingListing') : t('submitListing')}
        </button>
      </form>
      {message ? <p style={{ marginTop: 12, color: 'green' }}>{message}</p> : null}
      {error ? <p style={{ marginTop: 12, color: 'red' }}>{error}</p> : null}
    </main>
  );
}
