import { useState, useEffect } from 'react';
import { useSeoMeta } from '@unhead/react';
import { useNavigate, Link } from 'react-router-dom';
import ngeohash from 'ngeohash';
import { nip19 } from 'nostr-tools';
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import { Textarea } from '@/components/ui/textarea';
import { Label } from '@/components/ui/label';
import { useNostrPublish } from '@/hooks/useNostrPublish';
import { useCurrentUser } from '@/hooks/useCurrentUser';
import { useAuthor } from '@/hooks/useAuthor';
import { useUploadFile } from '@/hooks/useUploadFile';
import { useToast } from '@/hooks/useToast';
import { useWallet } from '@/hooks/useWallet';
import { WalletModal } from '@/components/WalletModal';
import { LoginArea } from '@/components/auth/LoginArea';
import { Nip05Required } from '@/components/Nip05Required';
import { SpotPicker } from '@/components/SpotPicker';
import { PhotoDropzone } from '@/components/PhotoDropzone';
import { ImageWithFallback } from '@/components/ImageWithFallback';
import { NofferField } from '@/components/NofferField';
import { PaymentReadinessNote } from '@/components/PaymentReadinessNote';
import { EntityTypeField } from '@/components/EntityTypeField';
import { CrewLinkField } from '@/components/CrewLinkField';
import { SKATE_COACH_KIND, SKATE_SPOT_KIND, COACH_SKILL_LABELS, COACH_SKILL_DESCRIPTIONS, isValidNoffer, type EntityType } from '@/lib/types';
import { COACH_SKILL_KEYS, COACH_SKILL_DESC_KEYS } from '@/lib/labelKeys';
import { COACH_FORMATS, COACH_LEVELS, COACH_AGE_GROUPS, COACH_CREDENTIALS, COACH_AVAILABILITY, COACH_RATE_CURRENCIES, COACH_RATE_UNITS, COACH_PAYMENT_METHODS, type CoachOption } from '@/lib/coachOptions';
import { normalizeUrlInput, sanitizeUrl, isValidEmail } from '@/lib/sanitizeUrl';
import { useTranslation } from '@/contexts/language';
import { cn } from '@/lib/utils';
import { GraduationCap, Upload, X, Loader2, ArrowLeft, MapPin, Wallet, ExternalLink, Check, Eye } from 'lucide-react';
import { LabProUpgrade } from '@/components/LabProUpgrade';
import { LabProfilePreview } from '@/components/LabProfilePreview';
import { LabDraftBanner } from '@/components/LabDraftBanner';
import { LabProfileProgress } from '@/components/LabProfileProgress';
import { useLabDraft } from '@/hooks/useLabDraft';
import { labProfilePath } from '@/lib/labRoutes';
import { FormWizard, WizardStep } from '@/components/FormWizard';
import { usePlatformFee } from '@/hooks/usePlatformFee';
import { useMyLabProfileEvent } from '@/hooks/useMyLabProfile';

const SKILL_ENTRIES = Object.entries(COACH_SKILL_LABELS);

/** Section divider/heading inside the (long) coach form. */
function FormSection({ title, hint }: { title: string; hint?: string }) {
  return (
    <div className="pt-4 border-t border-gray-800">
      <h3 className="text-sm font-black uppercase tracking-widest text-red-400">{title}</h3>
      {hint && <p className="text-xs text-gray-500 mt-0.5">{hint}</p>}
    </div>
  );
}

/** Reusable chip toggle row for the curated coach option sets. */
function OptionChips({
  label,
  hint,
  options,
  selected,
  onToggle,
  idPrefix,
}: {
  label: string;
  hint?: string;
  options: CoachOption[];
  selected: string[];
  onToggle: (value: string) => void;
  idPrefix: string;
}) {
  const { t } = useTranslation();
  return (
    <div className="space-y-2">
      {label && <Label>{label}</Label>}
      {hint && <p className="text-xs text-gray-500">{hint}</p>}
      <div className="flex flex-wrap gap-1.5">
        {options.map((o) => {
          const active = selected.includes(o.value);
          return (
            <button
              key={`${idPrefix}-${o.value}`}
              type="button"
              onClick={() => onToggle(o.value)}
              aria-pressed={active}
              className={cn(
                'min-h-0 min-w-0 leading-none px-3 py-2 rounded-full border text-xs font-bold transition-colors active:scale-95',
                active
                  ? 'bg-red-500 text-white border-red-500'
                  : 'bg-gray-800 hover:bg-gray-700 border-gray-700 text-gray-300',
              )}
            >
              {t(o.key)}
            </button>
          );
        })}
      </div>
    </div>
  );
}

export default function BecomeCoachPage() {
  const { t } = useTranslation();
  useSeoMeta({
    title: t('seoUi.becomeCoachTitle'),
    description: t('seoUi.becomeCoachDesc'),
  });

  const navigate = useNavigate();
  const { user, metadata } = useCurrentUser();
  const author = useAuthor(user?.pubkey || '');
  const { mutateAsync: createEvent, isPending: isPublishing } = useNostrPublish();
  const { mutateAsync: uploadFile, isPending: isUploading } = useUploadFile();
  const { toast } = useToast();
  const { webln, activeNWC } = useWallet();
  
  // Check if user has any wallet connected
  const hasWallet = !!webln || !!activeNWC;

  // Optional "Pro" upgrade — free to list; Pro adds a badge + featured placement
  const { isActive: isPro, featuredUntilSeconds } = usePlatformFee('labProfile');
  const [goPro, setGoPro] = useState(false);

  const [bio, setBio] = useState('');
  const [location, setLocation] = useState('');
  const [latitude, setLatitude] = useState('');
  const [longitude, setLongitude] = useState('');
  const [selectedSkills, setSelectedSkills] = useState<string[]>([]);
  const [image, setImage] = useState<string | null>(null);
  const [experience, setExperience] = useState('');
  const [rate, setRate] = useState('');
  const [rateAmount, setRateAmount] = useState('');
  const [rateCurrency, setRateCurrency] = useState<string>('sats');
  const [rateUnit, setRateUnit] = useState<string>('hour');
  const [paymentMethods, setPaymentMethods] = useState<string[]>([]);
  const [paymentNote, setPaymentNote] = useState('');
  const [bookingFee, setBookingFee] = useState('');
  const [bookingFeeCurrency, setBookingFeeCurrency] = useState<string>('sats');
  const [payWhatYouCan, setPayWhatYouCan] = useState(false);
  const [phone, setPhone] = useState('');
  const [email, setEmail] = useState('');
  const [website, setWebsite] = useState('');
  const [instagram, setInstagram] = useState('');
  const [noffer, setNoffer] = useState('');
  const [formats, setFormats] = useState<string[]>([]);
  const [levels, setLevels] = useState<string[]>([]);
  const [ageGroups, setAgeGroups] = useState<string[]>([]);
  const [credentials, setCredentials] = useState<string[]>([]);
  const [certNote, setCertNote] = useState('');
  const [languages, setLanguages] = useState<string[]>([]);
  const [languageInput, setLanguageInput] = useState('');
  const [availability, setAvailability] = useState<string[]>([]);
  const [booking, setBooking] = useState('');
  const [photos, setPhotos] = useState<string[]>([]);
  const [video, setVideo] = useState('');
  const [entityType, setEntityType] = useState<EntityType>('individual');
  const [members, setMembers] = useState<string[]>([]);
  const [crewRef, setCrewRef] = useState<string | undefined>(undefined);
  const [selectedSpots, setSelectedSpots] = useState<string[]>([]);
  const [isGettingLocation, setIsGettingLocation] = useState(false);
  const [titleInput, setTitleInput] = useState('');
  const [prefilled, setPrefilled] = useState(false);
  const [previewOpen, setPreviewOpen] = useState(false);
  const [step, setStep] = useState(0);

  const draft = useLabDraft(
    `craft:coach`,
    { titleInput, bio, location, latitude, longitude, selectedSkills, image, experience, rate, rateAmount, rateCurrency, rateUnit, phone, email, website, instagram, noffer, entityType, members, crewRef, selectedSpots, formats, levels, ageGroups, credentials, certNote, languages, availability, booking, paymentMethods, paymentNote, bookingFee, bookingFeeCurrency, payWhatYouCan, photos, video },
    (d) => {
      setTitleInput(d.titleInput);
      setBio(d.bio);
      setLocation(d.location);
      setLatitude(d.latitude);
      setLongitude(d.longitude);
      setSelectedSkills(d.selectedSkills);
      setImage(d.image);
      setExperience(d.experience);
      setRate(d.rate);
      setRateAmount(d.rateAmount);
      setRateCurrency(d.rateCurrency);
      setRateUnit(d.rateUnit);
      setPhone(d.phone);
      setEmail(d.email);
      setWebsite(d.website);
      setInstagram(d.instagram);
      setNoffer(d.noffer);
      setEntityType(d.entityType);
      setMembers(d.members);
      setCrewRef(d.crewRef);
      setSelectedSpots(d.selectedSpots);
      setFormats(d.formats);
      setLevels(d.levels);
      setAgeGroups(d.ageGroups);
      setCredentials(d.credentials);
      setCertNote(d.certNote);
      setLanguages(d.languages);
      setAvailability(d.availability);
      setBooking(d.booking);
      setPaymentMethods(d.paymentMethods);
      setPaymentNote(d.paymentNote);
      setBookingFee(d.bookingFee);
      setBookingFeeCurrency(d.bookingFeeCurrency);
      setPayWhatYouCan(d.payWhatYouCan);
      setPhotos(d.photos);
      setVideo(d.video);
    },
  );
  const [existingGeohash, setExistingGeohash] = useState<string | undefined>(undefined);

  // Prefill from an existing profile so this is an edit, not a blind overwrite.
  const { data: existingProfile } = useMyLabProfileEvent(SKATE_COACH_KIND, 'coach-profile');
  useEffect(() => {
    if (prefilled || !existingProfile) return;
    setPrefilled(true);
    const tag = (n: string) => existingProfile.tags.find(([t]) => t === n)?.[1];
    const tags = (n: string) => existingProfile.tags.filter(([t]) => t === n).map(([, v]) => v);
    setTitleInput(tag('title') ?? '');
    setExistingGeohash(tag('g'));
    setGoPro(existingProfile.tags.some(([t]) => t === 'featured'));
    setBio(existingProfile.content ?? '');
    setLocation(tag('location') ?? '');
    setImage(tag('image') ?? null);
    setExperience(tag('experience') ?? '');
    setRate(tag('rate') ?? '');
    setRateAmount(tag('rate_amount') ?? '');
    setRateCurrency(tag('rate_currency') ?? 'sats');
    setRateUnit(tag('rate_unit') ?? 'hour');
    setPaymentMethods(tags('payment_method'));
    setPaymentNote(tag('payment_note') ?? '');
    setBookingFee(tag('booking_fee') ?? '');
    setBookingFeeCurrency(tag('booking_fee_currency') ?? 'sats');
    setPayWhatYouCan(existingProfile.tags.some(([t, v]) => t === 'pay_what_you_can' && v === 'true'));
    setPhone(tag('phone') ?? '');
    setEmail(tag('email') ?? '');
    setWebsite(tag('website') ?? '');
    setInstagram(tag('instagram') ?? '');
    setNoffer(tag('noffer') ?? '');
    setFormats(tags('format'));
    setLevels(tags('level'));
    setAgeGroups(tags('age'));
    setCredentials(tags('cert'));
    setCertNote(tag('cert_note') ?? '');
    setLanguages(tags('language'));
    setAvailability(tags('availability'));
    setBooking(tag('booking') ?? '');
    setPhotos(tags('photo'));
    setVideo(tag('video') ?? '');
    setEntityType((tag('entity') as EntityType) ?? 'individual');
    setMembers(tags('p'));
    setCrewRef(existingProfile.tags.find(([t, v]) => t === 'a' && v.startsWith('35006:'))?.[1]);
    setSelectedSkills(tags('t').filter((v) => v !== 'skatecoach'));
    setSelectedSpots(
      existingProfile.tags
        .filter(([t, v]) => t === 'a' && v.startsWith(`${SKATE_SPOT_KIND}:`))
        .map(([, v]) => {
          const [, pk, ...rest] = v.split(':');
          return `${pk}:${rest.join(':')}`;
        }),
    );
  }, [existingProfile, prefilled]);

  const getDisplayName = () => {
    if (author.data?.metadata?.name) return author.data.metadata.name;
    if (user?.pubkey) {
      const npub = nip19.npubEncode(user.pubkey);
      return `${npub.slice(0, 12)}...${npub.slice(-4)}`;
    }
    return t('labUi.coachForm.anonymous');
  };

  const toggleSkill = (skill: string) => {
    setSelectedSkills((prev) => prev.includes(skill) ? prev.filter((s) => s !== skill) : [...prev, skill]);
  };

  const toggleValue = (list: string[], setList: (v: string[]) => void, value: string) => {
    setList(list.includes(value) ? list.filter((v) => v !== value) : [...list, value]);
  };

  const addLanguage = () => {
    const v = languageInput.trim();
    if (!v) return;
    setLanguages((prev) => (prev.some((l) => l.toLowerCase() === v.toLowerCase()) ? prev : [...prev, v]));
    setLanguageInput('');
  };

  const getCurrentLocation = () => {
    if (!navigator.geolocation) {
      toast({ title: t('labUi.become.geolocationUnsupported'), variant: 'destructive' });
      return;
    }

    setIsGettingLocation(true);
    navigator.geolocation.getCurrentPosition(
      (position) => {
        setLatitude(position.coords.latitude.toFixed(6));
        setLongitude(position.coords.longitude.toFixed(6));
        setIsGettingLocation(false);
        toast({ title: t('labUi.become.locationFound') });
      },
      (error) => {
        setIsGettingLocation(false);
        toast({ title: t('labUi.become.locationError'), description: error.message, variant: 'destructive' });
      }
    );
  };

  const handleImageUpload = async (e: React.ChangeEvent<HTMLInputElement>) => {
    const files = e.target.files;
    if (!files || files.length === 0) return;

    try {
      const file = files[0];
      const tags = await uploadFile(file);
      const url = tags[0]?.[1];
      if (url) {
        setImage(url);
        toast({ title: t('labUi.become.imageUploaded') });
      }
    } catch (error) {
      toast({ title: t('labUi.become.uploadFailed'), description: error instanceof Error ? error.message : t('common.error'), variant: 'destructive' });
    }
    e.target.value = '';
  };

  const handleGalleryUpload = async (files: File[]) => {
    const room = 12 - photos.length;
    if (room <= 0) return;
    try {
      const uploaded: string[] = [];
      for (const file of files.slice(0, room)) {
        const tags = await uploadFile(file);
        const url = tags[0]?.[1];
        if (url) uploaded.push(url);
      }
      if (uploaded.length > 0) {
        setPhotos((prev) => [...prev, ...uploaded].slice(0, 12));
        toast({ title: t('labUi.coachForm.galleryUploaded', { count: uploaded.length }) });
      }
    } catch (error) {
      toast({ title: t('labUi.become.uploadFailed'), description: error instanceof Error ? error.message : t('common.error'), variant: 'destructive' });
    }
  };

  // Optional, but if given it must be usable — a bad email/URL would otherwise
  // be stored and then silently hidden.
  const emailError = email.trim() && !isValidEmail(email) ? t('labUi.become.invalidEmail') : '';
  const websiteError = website.trim() && !sanitizeUrl(normalizeUrlInput(website)) ? t('labUi.become.invalidWebsite') : '';
  const contactError = emailError || websiteError;
  const [attempted, setAttempted] = useState(false);
  const scrollTo = (id: string) => document.getElementById(id)?.scrollIntoView({ behavior: 'smooth', block: 'center' });

  // Draft enrichment tags for the live preview (same tags the form publishes).
  const previewExtraTags: string[][] = [];
  for (const v of languages) previewExtraTags.push(['language', v]);
  for (const v of availability) previewExtraTags.push(['availability', v]);
  if (rateAmount.trim()) {
    previewExtraTags.push(['rate_amount', rateAmount.trim()], ['rate_currency', rateCurrency], ['rate_unit', rateUnit]);
  }
  for (const m of paymentMethods) previewExtraTags.push(['payment_method', m]);
  if (paymentNote.trim()) previewExtraTags.push(['payment_note', paymentNote.trim()]);
  if (bookingFee.trim()) previewExtraTags.push(['booking_fee', bookingFee.trim()], ['booking_fee_currency', bookingFeeCurrency]);
  if (payWhatYouCan) previewExtraTags.push(['pay_what_you_can', 'true']);
  for (const p of photos) previewExtraTags.push(['photo', p]);
  if (video.trim()) previewExtraTags.push(['video', video.trim()]);
  if (booking.trim()) previewExtraTags.push(['booking', booking.trim()]);
  const previewSkills = SKILL_ENTRIES
    .filter(([skill]) => selectedSkills.includes(skill))
    .map(([skill, label]) => ({ label: COACH_SKILL_KEYS[skill] ? t(COACH_SKILL_KEYS[skill]) : label }));

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    setAttempted(true);

    if (contactError) {
      setStep(4);
      window.setTimeout(() => scrollTo(emailError ? 'email' : 'website'), 60);
      toast({ title: t('labUi.become.checkContact'), description: contactError, variant: 'destructive' });
      return;
    }

    if (selectedSkills.length === 0) {
      setStep(1);
      window.setTimeout(() => scrollTo('coach-skills'), 60);
      toast({ title: t('labUi.coachForm.skillsRequired'), description: t('labUi.coachForm.selectSkill'), variant: 'destructive' });
      return;
    }

    try {
      const identifier = 'coach-profile';
      const displayName = getDisplayName();

      const tags: string[][] = [
        ['d', identifier],
        ['title', titleInput.trim() || displayName],
        ['t', 'skatecoach'],
        ['alt', `Skate coach: ${displayName}`],
      ];

      if (location.trim()) tags.push(['location', location.trim()]);

      if (latitude && longitude) {
        const lat = parseFloat(latitude);
        const lng = parseFloat(longitude);
        if (!isNaN(lat) && !isNaN(lng)) {
          const geohash = ngeohash.encode(lat, lng, 7);
          tags.push(['g', geohash]);
        }
      } else if (existingGeohash) {
        // Preserve the existing map pin when editing without re-locating.
        tags.push(['g', existingGeohash]);
      }

      for (const skill of selectedSkills) tags.push(['t', skill]);
      if (image) tags.push(['image', image]);
      if (experience.trim()) tags.push(['experience', experience.trim()]);
      if (rate.trim()) tags.push(['rate', rate.trim()]);
      if (rateAmount.trim()) {
        tags.push(['rate_amount', rateAmount.trim()]);
        tags.push(['rate_currency', rateCurrency]);
        tags.push(['rate_unit', rateUnit]);
      }
      for (const m of paymentMethods) tags.push(['payment_method', m]);
      if (paymentNote.trim()) tags.push(['payment_note', paymentNote.trim()]);
      if (bookingFee.trim()) {
        tags.push(['booking_fee', bookingFee.trim()]);
        tags.push(['booking_fee_currency', bookingFeeCurrency]);
      }
      if (payWhatYouCan) tags.push(['pay_what_you_can', 'true']);
      if (phone.trim()) tags.push(['phone', phone.trim()]);
      if (email.trim()) tags.push(['email', email.trim()]);
      if (website.trim()) tags.push(['website', normalizeUrlInput(website)]);
      if (instagram.trim()) tags.push(['instagram', instagram.trim()]);
      if (isValidNoffer(noffer.trim())) tags.push(['noffer', noffer.trim().toLowerCase()]);

      for (const v of formats) tags.push(['format', v]);
      for (const v of levels) tags.push(['level', v]);
      for (const v of ageGroups) tags.push(['age', v]);
      for (const v of credentials) tags.push(['cert', v]);
      if (certNote.trim()) tags.push(['cert_note', certNote.trim()]);
      for (const v of languages) tags.push(['language', v]);
      for (const v of availability) tags.push(['availability', v]);
      if (booking.trim()) tags.push(['booking', normalizeUrlInput(booking)]);
      for (const p of photos) tags.push(['photo', p]);
      if (video.trim()) tags.push(['video', video.trim()]);

      tags.push(['entity', entityType]);
      if (entityType === 'collective') {
        for (const pk of members) tags.push(['p', pk]);
        if (crewRef) tags.push(['a', crewRef]);
      }
      
      // Add spot references
      for (const spotId of selectedSpots) {
        const [spotPubkey, spotIdentifier] = spotId.split(':');
        tags.push(['a', `${SKATE_SPOT_KIND}:${spotPubkey}:${spotIdentifier}`]);
      }

      // Pro / featured listing (optional, paid)
      if (isPro && featuredUntilSeconds) {
        tags.push(['featured', String(featuredUntilSeconds)]);
      }

      await createEvent({
        kind: SKATE_COACH_KIND,
        content: bio.trim(),
        tags,
      });
      draft.clear();

      toast({ title: existingProfile ? t('labUi.coachForm.updated') : t('labUi.coachForm.created'), description: t('labUi.become.profilePublished') });
      navigate(`${labProfilePath('coach', user?.pubkey ?? '', identifier)}${existingProfile ? '' : '?published=1'}`);
    } catch (error) {
      toast({ title: t('labUi.become.failedToPublish'), description: error instanceof Error ? error.message : t('common.error'), variant: 'destructive' });
    }
  };

  if (!user) {
    return (
      <>
        <div className="container px-4 py-8">
          <Card className="max-w-xl mx-auto bg-gray-900 border-gray-700">
            <CardContent className="py-12 text-center">
              <GraduationCap className="h-12 w-12 mx-auto mb-4 text-gray-600" />
              <h2 className="text-xl font-bold mb-2">{t('labUi.become.loginRequired')}</h2>
              <p className="text-gray-400 mb-6">{t('labUi.become.loginRequiredDesc', { role: t('labUi.role.coach') })}</p>
              <LoginArea className="justify-center max-w-60 mx-auto" />
            </CardContent>
          </Card>
        </div>
      </>
    );
  }

  const hasNip05 = metadata?.nip05;

  return (
    <>
      <div className="container px-4 sm:px-6 py-6 sm:py-8 max-w-2xl">
        <div className="mb-6">
          <Link to="/lab" className="inline-flex items-center text-gray-400 hover:text-white transition-colors mb-4">
            <ArrowLeft className="h-4 w-4 mr-2" />
            {t('labUi.become.backToLab')}
          </Link>
          <h1 className="text-3xl font-black uppercase neon-lime" style={{
            fontFamily: 'Impact, "Arial Black", sans-serif'
          }}>{t('labUi.coachForm.heading')}</h1>
          <p className="text-gray-400 mt-1">{t('labUi.coachForm.tagline')}</p>

          {!hasNip05 && (
            <Nip05Required
              variant="banner"
              color="#eab308"
              role="coaches"
              reason={t('labUi.coachForm.nip05Reason')}
              className="mt-4"
            />
          )}

          {/* Wallet Requirement */}
          <Card className="mt-4 bg-orange-950/30 border-2 border-orange-500/50">
            <CardContent className="p-4">
              <div className="flex items-start gap-3">
                <Wallet className="h-6 w-6 text-orange-400 flex-shrink-0 mt-0.5" />
                <div className="flex-1">
                  <h3 className="font-bold text-orange-400 mb-2">{t('labUi.become.paymentSetup')}</h3>
                  <p className="text-sm text-gray-300 mb-3">
                    {t('labUi.coachForm.paymentDesc')}
                  </p>
                  
                  {hasWallet ? (
                    <div className="p-3 rounded-lg bg-green-950/30 border border-green-500/50">
                      <div className="flex items-center gap-2 mb-1">
                        <div className="h-2 w-2 rounded-full bg-green-500" />
                        <p className="text-sm font-bold text-green-400">{t('labUi.become.walletConnected')}</p>
                      </div>
                      <p className="text-xs text-gray-400">
                        {webln ? t('labUi.become.usingWebln') : t('labUi.become.usingNwc')}
                      </p>
                    </div>
                  ) : (
                    <div className="space-y-3">
                      <div className="p-3 rounded-lg bg-red-950/30 border border-red-500/50">
                        <div className="flex items-center gap-2">
                          <div className="h-2 w-2 rounded-full bg-red-500" />
                          <p className="text-sm font-bold text-red-400">{t('labUi.become.noWallet')}</p>
                        </div>
                      </div>
                      
                      <div className="flex flex-col sm:flex-row gap-2">
                        <WalletModal>
                          <Button className="gap-2 bg-orange-500 hover:bg-orange-600 flex-1">
                            <Wallet className="h-4 w-4" />
                            {t('labUi.become.connectWalletNwc')}
                          </Button>
                        </WalletModal>
                        <a
                          href="https://planb.academy/en/tutorials/wallet"
                          target="_blank"
                          rel="noopener noreferrer"
                          className="flex-1"
                        >
                          <Button variant="outline" className="gap-2 w-full border-orange-500/50 text-orange-400 hover:bg-orange-500/10">
                            <ExternalLink className="h-4 w-4" />
                            {t('labUi.become.learnHow')}
                          </Button>
                        </a>
                      </div>

                      <p className="text-xs text-gray-400 italic">
                        {t('labUi.become.tipWithTime')}
                      </p>
                    </div>
                  )}
                </div>
              </div>
            </CardContent>
          </Card>
        </div>

        {draft.resumable && <LabDraftBanner onResume={draft.resume} onDiscard={draft.discard} />}
        <LabProfileProgress
          hasPhoto={!!image}
          hasBio={bio.trim().length > 20}
          hasSkills={selectedSkills.length > 0}
          hasRate={!!(rate.trim() || rateAmount.trim())}
          hasContact={!!(email || website || phone || instagram)}
          hasLocation={!!location.trim()}
        />

        <form onSubmit={handleSubmit}>
          <Card className="bg-gray-900 border-gray-700">
            <CardHeader>
              <CardTitle>{t('labUi.coachForm.profileTitle')}</CardTitle>
              <CardDescription className="text-gray-400">{t('labUi.coachForm.profileDesc')}</CardDescription>
            </CardHeader>
            <CardContent className="space-y-6">
              <FormWizard
                steps={[
                  { id: 'identity', title: t('labUi.wizard.identity') },
                  { id: 'coach', title: t('labUi.coachForm.sectionWhatYouCoach') },
                  { id: 'creds', title: t('labUi.coachForm.sectionCredentials') },
                  { id: 'pay', title: t('labUi.coachForm.sectionPayments') },
                  { id: 'where', title: t('labUi.coachForm.sectionWhereYouCoach') },
                ]}
                step={step}
                onStepChange={setStep}
                accentChip="bg-red-500 text-white border-red-500"
                submitting={isPublishing || isUploading}
                submitLabel={existingProfile ? t('labUi.coachForm.update') : isPro ? t('labUi.coachForm.createPro') : t('labUi.coachForm.create')}
                submittingLabel={t('labUi.become.publishing')}
                footerExtra={
                  <Button type="button" variant="outline" onClick={() => setPreviewOpen(true)} className="h-12 flex-shrink-0 gap-2 border-gray-700 font-bold">
                    <Eye className="h-4 w-4" /> {t('labUi.preview.button')}
                  </Button>
                }
              >
                <WizardStep index={0}>
              <div className="space-y-2">
                <Label>{t('labUi.coachForm.identity')}</Label>
                <div className="flex items-center gap-3 p-4 rounded-lg border border-gray-700 bg-gray-800/50">
                  <div className="h-12 w-12 rounded-full overflow-hidden bg-gray-700 flex items-center justify-center flex-shrink-0">
                    {metadata?.picture ? (
                      <img src={metadata.picture} alt="" className="h-full w-full object-cover" />
                    ) : (
                      <GraduationCap className="h-6 w-6 text-gray-500" />
                    )}
                  </div>
                  <div className="min-w-0">
                    <p className="font-black text-lg truncate">{getDisplayName()}</p>
                    <p className="text-sm text-gray-400">{t('labUi.become.fromNostrProfile')}</p>
                  </div>
                </div>
              </div>

              <div className="space-y-2">
                <Label htmlFor="title">{t('labUi.become.headline')}</Label>
                <Input
                  id="title"
                  value={titleInput}
                  onChange={(e) => setTitleInput(e.target.value)}
                  placeholder={getDisplayName()}
                  maxLength={100}
                  className="bg-gray-800 border-gray-700"
                />
                <p className="text-xs text-gray-500">
                  {t('labUi.become.headlineHint', { example: t('labUi.coachForm.headlineExample') })}
                </p>
              </div>

              <div className="space-y-2">
                <Label htmlFor="bio">{t('labUi.coachForm.bioLabel')}</Label>
                <Textarea id="bio" placeholder={t('labUi.coachForm.bioPlaceholder')} value={bio} onChange={(e) => setBio(e.target.value)} rows={5} maxLength={3000} className="bg-gray-800 border-gray-700" />
                <p className="text-right text-xs text-gray-500">{bio.length}/3000</p>
              </div>

              <EntityTypeField
                entityType={entityType}
                onEntityTypeChange={setEntityType}
                members={members}
                onMembersChange={setMembers}
                accentBg="bg-[#ff0040] hover:bg-[#ff0040]/90"
                accentText="text-[#ff0040]"
              />

              {entityType === 'collective' && (
                <CrewLinkField value={crewRef} onChange={setCrewRef} accentBg="bg-[#ff0040] hover:bg-[#ff0040]/90" accentText="text-[#ff0040]" />
              )}

                </WizardStep>
                <WizardStep index={1}>
              <FormSection title={t('labUi.coachForm.sectionWhatYouCoach')} />

              <div className="space-y-3">
                <Label>{t('labUi.coachForm.skillsLabel')}</Label>
                <div id="coach-skills" className="grid grid-cols-1 sm:grid-cols-2 gap-2">
                  {SKILL_ENTRIES.map(([skill, label]) => (
                    <button
                      key={skill}
                      type="button"
                      onClick={() => toggleSkill(skill)}
                      className={cn(
                        'p-3 rounded-lg text-left transition-all border text-sm',
                        selectedSkills.includes(skill)
                          ? 'bg-red-500 text-white border-red-500'
                          : 'bg-gray-800 hover:bg-gray-700 border-gray-700'
                      )}
                    >
                      <div className="font-bold">{COACH_SKILL_KEYS[skill] ? t(COACH_SKILL_KEYS[skill]) : label}</div>
                      <div className={cn('text-xs mt-1 line-clamp-1', selectedSkills.includes(skill) ? 'text-white/80' : 'text-gray-400')}>
                        {COACH_SKILL_DESC_KEYS[skill] ? t(COACH_SKILL_DESC_KEYS[skill]) : COACH_SKILL_DESCRIPTIONS[skill]}
                      </div>
                    </button>
                  ))}
                </div>
                {attempted && selectedSkills.length === 0 && (
                  <p className="text-xs font-bold text-red-400">{t('labUi.coachForm.selectSkill')}</p>
                )}
              </div>

              <OptionChips
                label={t('labUi.coachForm.formatsLabel')}
                hint={t('labUi.coachForm.formatsHint')}
                options={COACH_FORMATS}
                selected={formats}
                onToggle={(v) => toggleValue(formats, setFormats, v)}
                idPrefix="format"
              />

              <OptionChips
                label={t('labUi.coachForm.levelsLabel')}
                options={COACH_LEVELS}
                selected={levels}
                onToggle={(v) => toggleValue(levels, setLevels, v)}
                idPrefix="level"
              />

              <OptionChips
                label={t('labUi.coachForm.agesLabel')}
                options={COACH_AGE_GROUPS}
                selected={ageGroups}
                onToggle={(v) => toggleValue(ageGroups, setAgeGroups, v)}
                idPrefix="age"
              />

                </WizardStep>
                <WizardStep index={2}>
              <FormSection title={t('labUi.coachForm.sectionCredentials')} />

              <OptionChips
                label=""
                hint={t('labUi.coachForm.credentialsHint')}
                options={COACH_CREDENTIALS}
                selected={credentials}
                onToggle={(v) => toggleValue(credentials, setCredentials, v)}
                idPrefix="cert"
              />

              <div className="space-y-1.5">
                <Label htmlFor="cert-note" className="text-xs font-normal text-gray-400">{t('labUi.coachForm.certNoteLabel')}</Label>
                <Input id="cert-note" placeholder={t('labUi.coachForm.certNotePlaceholder')} value={certNote} onChange={(e) => setCertNote(e.target.value)} className="bg-gray-800 border-gray-700" />
              </div>

              <div className="space-y-2">
                <Label htmlFor="language">{t('labUi.coachForm.languagesLabel')}</Label>
                <p className="text-xs text-gray-500">{t('labUi.coachForm.languagesHint')}</p>
                <div className="flex gap-2">
                  <Input
                    id="language"
                    value={languageInput}
                    onChange={(e) => setLanguageInput(e.target.value)}
                    onKeyDown={(e) => { if (e.key === 'Enter') { e.preventDefault(); addLanguage(); } }}
                    placeholder={t('labUi.coachForm.languagePlaceholder')}
                    className="bg-gray-800 border-gray-700"
                  />
                  <Button type="button" variant="outline" onClick={addLanguage} className="border-gray-700 shrink-0">
                    {t('common.add')}
                  </Button>
                </div>
                {languages.length > 0 && (
                  <div className="flex flex-wrap gap-2 pt-1">
                    {languages.map((lang) => (
                      <span key={lang} className="inline-flex items-center gap-1 rounded-full border border-gray-700 bg-gray-800 py-1 pl-3 pr-2 text-xs font-bold text-gray-300">
                        {lang}
                        <button
                          type="button"
                          onClick={() => setLanguages((prev) => prev.filter((l) => l !== lang))}
                          aria-label={`${t('common.remove')} ${lang}`}
                          className="min-h-0 min-w-0 text-gray-500 hover:text-white"
                        >
                          <X className="h-3.5 w-3.5" />
                        </button>
                      </span>
                    ))}
                  </div>
                )}
              </div>

              <FormSection title={t('labUi.coachForm.sectionAvailability')} />

              <OptionChips
                label=""
                options={COACH_AVAILABILITY}
                selected={availability}
                onToggle={(v) => toggleValue(availability, setAvailability, v)}
                idPrefix="availability"
              />

              <div className="space-y-2">
                <Label htmlFor="booking">{t('labUi.coachForm.bookingLabel')}</Label>
                <Input
                  id="booking"
                  type="url"
                  value={booking}
                  onChange={(e) => setBooking(e.target.value)}
                  placeholder="https://cal.com/yourname"
                  className="bg-gray-800 border-gray-700"
                />
                <p className="text-xs text-gray-500">{t('labUi.coachForm.bookingHint')}</p>
              </div>

              <div className="space-y-2">
                <Label htmlFor="experience">{t('labUi.become.yearsExperience')}</Label>
                <Input id="experience" type="number" placeholder="15" value={experience} onChange={(e) => setExperience(e.target.value)} className="bg-gray-800 border-gray-700" />
              </div>

              <div className="space-y-3">
                <Label>{t('labUi.coachForm.rateAmountLabel')}</Label>
                <div className="grid grid-cols-3 gap-2">
                  <Input
                    type="number"
                    inputMode="numeric"
                    placeholder="5000"
                    value={rateAmount}
                    onChange={(e) => setRateAmount(e.target.value.replace(/[^0-9.]/g, ''))}
                    className="bg-gray-800 border-gray-700"
                  />
                  <select
                    value={rateCurrency}
                    onChange={(e) => setRateCurrency(e.target.value)}
                    aria-label={t('labUi.coachForm.rateAmountLabel')}
                    className="h-10 min-w-0 rounded-md border border-gray-700 bg-gray-800 px-2 text-sm text-white"
                  >
                    {COACH_RATE_CURRENCIES.map((c) => (
                      <option key={c.value} value={c.value}>{t(c.key)}</option>
                    ))}
                  </select>
                  <select
                    value={rateUnit}
                    onChange={(e) => setRateUnit(e.target.value)}
                    aria-label={t('labUi.coachForm.rateAmountLabel')}
                    className="h-10 min-w-0 rounded-md border border-gray-700 bg-gray-800 px-2 text-sm text-white"
                  >
                    {COACH_RATE_UNITS.map((u) => (
                      <option key={u.value} value={u.value}>{t(u.key)}</option>
                    ))}
                  </select>
                </div>
                <div className="space-y-1.5">
                  <Label htmlFor="rate" className="text-xs font-normal text-gray-400">{t('labUi.coachForm.rateNotesLabel')}</Label>
                  <Input id="rate" placeholder={t('labUi.coachForm.rateNotesPlaceholder')} value={rate} onChange={(e) => setRate(e.target.value)} className="bg-gray-800 border-gray-700" />
                </div>
              </div>

                </WizardStep>
                <WizardStep index={3}>
              <FormSection title={t('labUi.coachForm.sectionPayments')} />

              <OptionChips
                label=""
                hint={t('labUi.coachForm.paymentMethodsHint')}
                options={COACH_PAYMENT_METHODS}
                selected={paymentMethods}
                onToggle={(v) => toggleValue(paymentMethods, setPaymentMethods, v)}
                idPrefix="paymethod"
              />

              <button
                type="button"
                onClick={() => setPayWhatYouCan((v) => !v)}
                aria-pressed={payWhatYouCan}
                className={cn(
                  'flex w-full min-h-0 items-center gap-2 rounded-lg border px-3 py-2.5 text-left text-sm font-bold transition-colors',
                  payWhatYouCan
                    ? 'border-red-500 bg-red-500/10 text-red-300'
                    : 'border-gray-700 bg-gray-800 text-gray-300 hover:bg-gray-700',
                )}
              >
                <span className={cn('flex h-4 w-4 flex-shrink-0 items-center justify-center rounded border', payWhatYouCan ? 'border-red-400 bg-red-500 text-white' : 'border-gray-600')}>
                  {payWhatYouCan && <Check className="h-3 w-3" />}
                </span>
                {t('labUi.coachForm.payWhatYouCanLabel')}
              </button>

              <div className="space-y-3">
                <Label>{t('labUi.coachForm.bookingFeeLabel')}</Label>
                <div className="grid grid-cols-2 gap-2">
                  <Input
                    type="number"
                    inputMode="numeric"
                    placeholder="2000"
                    value={bookingFee}
                    onChange={(e) => setBookingFee(e.target.value.replace(/[^0-9.]/g, ''))}
                    className="bg-gray-800 border-gray-700"
                  />
                  <select
                    value={bookingFeeCurrency}
                    onChange={(e) => setBookingFeeCurrency(e.target.value)}
                    aria-label={t('labUi.coachForm.bookingFeeLabel')}
                    className="h-10 min-w-0 rounded-md border border-gray-700 bg-gray-800 px-2 text-sm text-white"
                  >
                    {COACH_RATE_CURRENCIES.map((c) => (
                      <option key={c.value} value={c.value}>{t(c.key)}</option>
                    ))}
                  </select>
                </div>
                <p className="text-xs text-gray-500">{t('labUi.coachForm.bookingFeeHint')}</p>
              </div>

              <div className="space-y-1.5">
                <Label htmlFor="payment-note" className="text-xs font-normal text-gray-400">{t('labUi.coachForm.paymentNoteLabel')}</Label>
                <Input id="payment-note" placeholder={t('labUi.coachForm.paymentNotePlaceholder')} value={paymentNote} onChange={(e) => setPaymentNote(e.target.value)} className="bg-gray-800 border-gray-700" />
              </div>

                </WizardStep>
                <WizardStep index={4}>
              <FormSection title={t('labUi.coachForm.sectionWhereYouCoach')} />

              <div className="space-y-2">
                <Label htmlFor="location">{t('labUi.become.cityArea')}</Label>
                <Input id="location" placeholder="Los Angeles, CA" value={location} onChange={(e) => setLocation(e.target.value)} className="bg-gray-800 border-gray-700" />
              </div>

              <div className="space-y-3">
                <Label className="text-base font-bold">{t('labUi.become.contactInfo')}</Label>
                <p className="text-sm text-gray-400">{t('labUi.become.contactInfoDesc')}</p>

                <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
                  <div className="space-y-2">
                    <Label htmlFor="phone">{t('labUi.become.phoneNumber')}</Label>
                    <Input id="phone" type="tel" placeholder="+1 234 567 8900" value={phone} onChange={(e) => setPhone(e.target.value)} className="bg-gray-800 border-gray-700" />
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="email">{t('labUi.become.email')}</Label>
                    <Input id="email" type="email" placeholder="coach@example.com" value={email} onChange={(e) => setEmail(e.target.value)} className={cn('bg-gray-800 border-gray-700', emailError && 'border-red-500')} />
                    {emailError && <p className="text-xs text-red-400">{emailError}</p>}
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="website">{t('labUi.become.website')}</Label>
                    <Input id="website" type="url" placeholder="https://mysite.com" value={website} onChange={(e) => setWebsite(e.target.value)} className={cn('bg-gray-800 border-gray-700', websiteError && 'border-red-500')} />
                    {websiteError && <p className="text-xs text-red-400">{websiteError}</p>}
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="instagram">{t('labUi.become.instagram')}</Label>
                    <Input id="instagram" placeholder="@username" value={instagram} onChange={(e) => setInstagram(e.target.value)} className="bg-gray-800 border-gray-700" />
                  </div>
                </div>

                <PaymentReadinessNote />
                <NofferField value={noffer} onChange={setNoffer} />

                <div className="p-3 rounded-lg border border-blue-500/30 bg-blue-500/5">
                  <p className="text-sm text-gray-300">
                    {t('labUi.coachForm.dmNote')}
                  </p>
                </div>
              </div>

              {/* Spot Picker */}
              <SpotPicker
                selectedSpots={selectedSpots}
                onSpotsChange={setSelectedSpots}
                maxSpots={5}
                label={t('labUi.coachForm.spotsLabel')}
                description={t('labUi.coachForm.spotsDesc')}
              />

              <div className="space-y-2">
                <Label>{t('labUi.become.coordinatesOptional')}</Label>
                <div className="grid grid-cols-2 gap-4">
                  <Input placeholder={t('labUi.become.latitude')} value={latitude} onChange={(e) => setLatitude(e.target.value)} className="bg-gray-800 border-gray-700" />
                  <Input placeholder={t('labUi.become.longitude')} value={longitude} onChange={(e) => setLongitude(e.target.value)} className="bg-gray-800 border-gray-700" />
                </div>
                <Button type="button" variant="outline" size="sm" onClick={getCurrentLocation} disabled={isGettingLocation} className="mt-2 border-gray-700">
                  {isGettingLocation ? <><Loader2 className="h-4 w-4 mr-2 animate-spin" />{t('labUi.become.getting')}</> : <><MapPin className="h-4 w-4 mr-2" />{t('labUi.become.useCurrentLocation')}</>}
                </Button>
              </div>

              <FormSection title={t('labUi.coachForm.sectionPortfolio')} />

              <div className="space-y-2">
                <Label>{t('labUi.become.profilePhoto')}</Label>
                {image ? (
                  <div className="relative w-32 h-32 rounded-full overflow-hidden bg-gray-800">
                    <img src={image} alt={t('legacyMiscUi.altProfile')} className="w-full h-full object-cover" />
                    <button type="button" onClick={() => setImage(null)} className="absolute top-2 right-2 p-1 rounded-full bg-black/80 hover:bg-red-500">
                      <X className="h-4 w-4" />
                    </button>
                  </div>
                ) : (
                  <label className="block w-32 h-32 rounded-full border-2 border-dashed border-gray-700 flex flex-col items-center justify-center cursor-pointer hover:bg-gray-800/50">
                    <input type="file" accept="image/*" className="hidden" onChange={handleImageUpload} disabled={isUploading} />
                    {isUploading ? <Loader2 className="h-6 w-6 animate-spin" /> : <><Upload className="h-6 w-6 mb-1 text-gray-500" /><span className="text-xs text-gray-500">{t('labUi.become.upload')}</span></>}
                  </label>
                )}
              </div>

              <div className="space-y-3">
                <Label>{t('labUi.coachForm.galleryLabel')}</Label>
                <p className="text-xs text-gray-500">{t('labUi.coachForm.galleryHint')}</p>
                {photos.length > 0 && (
                  <div className="grid grid-cols-3 sm:grid-cols-4 gap-2">
                    {photos.map((url) => (
                      <div key={url} className="relative aspect-square rounded-lg overflow-hidden bg-gray-800">
                        <ImageWithFallback src={url} alt="" className="h-full w-full object-cover" />
                        <button
                          type="button"
                          onClick={() => setPhotos((prev) => prev.filter((p) => p !== url))}
                          className="absolute top-1 right-1 p-1 rounded-full bg-black/80 hover:bg-red-500"
                          aria-label={t('common.remove')}
                        >
                          <X className="h-3.5 w-3.5" />
                        </button>
                      </div>
                    ))}
                  </div>
                )}
                {photos.length < 12 && (
                  <PhotoDropzone
                    onFiles={handleGalleryUpload}
                    uploading={isUploading}
                    disabled={isPublishing}
                    className="aspect-video"
                    label={t('labUi.coachForm.galleryAdd')}
                  />
                )}
              </div>

              <div className="space-y-2">
                <Label htmlFor="video">{t('labUi.coachForm.videoLabel')}</Label>
                <Input
                  id="video"
                  type="url"
                  value={video}
                  onChange={(e) => setVideo(e.target.value)}
                  placeholder="https://youtube.com/watch?v=…"
                  className="bg-gray-800 border-gray-700"
                />
                <p className="text-xs text-gray-500">{t('labUi.coachForm.videoHint')}</p>
              </div>

              {/* Optional Pro upgrade — free to list without it */}
              <LabProUpgrade enabled={goPro} onEnabledChange={setGoPro} accentText="text-red-400" entityCoord={user ? `${SKATE_COACH_KIND}:${user.pubkey}:coach-profile` : undefined} />

                </WizardStep>
              </FormWizard>
            </CardContent>
          </Card>
        </form>
      </div>

      <LabProfilePreview
        open={previewOpen}
        onOpenChange={setPreviewOpen}
        heading={t('labUi.coachForm.profileTitle')}
        noun={t('labUi.detail.noun.coach')}
        accentText="text-red-400"
        accentChip="bg-red-500 text-white border-red-500"
        icon={GraduationCap}
        draft={{
          title: titleInput.trim() || getDisplayName(),
          bio,
          image,
          location,
          experience,
          rate,
          skills: previewSkills,
          extraTags: previewExtraTags,
          contact: { phone, email, website, instagram, noffer },
        }}
      />
    </>
  );
}