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 { Switch } from '@/components/ui/switch';
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 { NofferField } from '@/components/NofferField';
import { PaymentReadinessNote } from '@/components/PaymentReadinessNote';
import { EntityTypeField } from '@/components/EntityTypeField';
import { CrewLinkField } from '@/components/CrewLinkField';
import {
  SKATE_BUILDER_KIND,
  SKATE_SPOT_KIND,
  BUILDER_SERVICE_LABELS,
  BUILDER_SERVICE_DESCRIPTIONS,
  BUILDER_SKILL_LABELS,
  BUILDER_SCALE_LABELS,
  isValidNoffer,
  type EntityType,
} from '@/lib/types';
import {
  BUILDER_SERVICE_KEYS,
  BUILDER_SERVICE_DESC_KEYS,
  BUILDER_SKILL_KEYS,
  BUILDER_SCALE_KEYS,
} from '@/lib/labelKeys';
import { normalizeUrlInput, sanitizeUrl, isValidEmail } from '@/lib/sanitizeUrl';
import { useTranslation } from '@/contexts/language';
import { cn } from '@/lib/utils';
import { HardHat, Upload, X, Loader2, ArrowLeft, MapPin, Wallet, ExternalLink, Hammer, Eye } from 'lucide-react';
import { LabProUpgrade } from '@/components/LabProUpgrade';
import { usePlatformFee } from '@/hooks/usePlatformFee';
import { useMyLabProfileEvent } from '@/hooks/useMyLabProfile';
import { LabExtrasFields } from '@/components/LabExtrasFields';
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 { pickRateUnits } from '@/lib/labExtras';

const SERVICE_ENTRIES = Object.entries(BUILDER_SERVICE_LABELS);
const SKILL_ENTRIES = Object.entries(BUILDER_SKILL_LABELS);
const SCALE_ENTRIES = Object.entries(BUILDER_SCALE_LABELS);

function ChipGrid({
  entries,
  selected,
  onToggle,
  keys,
}: {
  entries: [string, string][];
  selected: string[];
  onToggle: (key: string) => void;
  keys?: Record<string, string>;
}) {
  const { t } = useTranslation();
  return (
    <div className="flex flex-wrap gap-2">
      {entries.map(([key, label]) => (
        <button
          key={key}
          type="button"
          onClick={() => onToggle(key)}
          className={cn(
            'px-3 py-2 rounded-xl text-xs font-bold border transition-all active:scale-95',
            selected.includes(key)
              ? 'bg-amber-500 text-black border-amber-500'
              : 'bg-gray-800 hover:bg-gray-700 border-gray-700 text-gray-300'
          )}
        >
          {keys?.[key] ? t(keys[key]) : label}
        </button>
      ))}
    </div>
  );
}

export default function BecomeBuilderPage() {
  const { t } = useTranslation();
  useSeoMeta({
    title: t('seoUi.becomeBuilderTitle'),
    description: t('seoUi.becomeBuilderDesc'),
  });

  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();

  const hasWallet = !!webln || !!activeNWC;
  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 [selectedServices, setSelectedServices] = useState<string[]>([]);
  const [selectedSkills, setSelectedSkills] = useState<string[]>([]);
  const [selectedScale, setSelectedScale] = useState<string[]>([]);
  const [gear, setGear] = useState('');
  const [serviceArea, setServiceArea] = useState('');
  const [insured, setInsured] = useState(false);
  const [image, setImage] = useState<string | null>(null);
  const [experience, setExperience] = useState('');
  const [rate, setRate] = useState('');
  const [phone, setPhone] = useState('');
  const [email, setEmail] = useState('');
  const [website, setWebsite] = useState('');
  const [portfolio, setPortfolio] = useState('');
  const [social, setSocial] = useState('');
  const [noffer, setNoffer] = useState('');
  const [entityType, setEntityType] = useState<EntityType>('collective');
  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 [extraTags, setExtraTags] = useState<string[][]>([]);
  const [previewOpen, setPreviewOpen] = useState(false);

  const [lead_time, setLeadTime] = useState('');
  const [warranty, setWarranty] = useState('');
  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_BUILDER_KIND, 'builder-profile');
  const draft = useLabDraft(
    `craft:builder`,
    { titleInput, bio, location, latitude, longitude, selectedServices, selectedSkills, selectedScale, gear, serviceArea, insured, image, experience, rate, phone, email, website, portfolio, social, noffer, entityType, members, crewRef, selectedSpots, lead_time, warranty, extraTags },
    (d) => {
      setTitleInput(d.titleInput);
      setBio(d.bio);
      setLocation(d.location);
      setLatitude(d.latitude);
      setLongitude(d.longitude);
      setSelectedServices(d.selectedServices);
      setSelectedSkills(d.selectedSkills);
      setSelectedScale(d.selectedScale);
      setGear(d.gear);
      setServiceArea(d.serviceArea);
      setInsured(d.insured);
      setImage(d.image);
      setExperience(d.experience);
      setRate(d.rate);
      setPhone(d.phone);
      setEmail(d.email);
      setWebsite(d.website);
      setPortfolio(d.portfolio);
      setSocial(d.social);
      setNoffer(d.noffer);
      setEntityType(d.entityType);
      setMembers(d.members);
      setCrewRef(d.crewRef);
      setSelectedSpots(d.selectedSpots);
      setLeadTime(d.lead_time);
      setWarranty(d.warranty);
      setExtraTags(d.extraTags);
    },
  );

  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);
    const keys = (m: Record<string, string>) => new Set(Object.keys(m));
    const svcK = keys(BUILDER_SERVICE_LABELS);
    const skillK = keys(BUILDER_SKILL_LABELS);
    const scaleK = keys(BUILDER_SCALE_LABELS);
    const sel = tags('t').filter((v) => v !== 'skatebuilder');
    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') ?? '');
    setLeadTime(tag('lead_time') ?? '');
    setWarranty(tag('warranty') ?? '');
    setPhone(tag('phone') ?? '');
    setEmail(tag('email') ?? '');
    setWebsite(tag('website') ?? '');
    setPortfolio(tag('portfolio') ?? '');
    setSocial(tag('social') ?? '');
    setNoffer(tag('noffer') ?? '');
    setGear(tag('gear') ?? '');
    setServiceArea(tag('service_area') ?? '');
    setInsured(tag('insured') === 'true');
    setEntityType((tag('entity') as EntityType) ?? 'collective');
    setMembers(tags('p'));
    setCrewRef(existingProfile.tags.find(([t, v]) => t === 'a' && v.startsWith('35006:'))?.[1]);
    setSelectedServices(sel.filter((v) => svcK.has(v)));
    setSelectedSkills(sel.filter((v) => skillK.has(v)));
    setSelectedScale(sel.filter((v) => scaleK.has(v)));
    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.builderForm.anonymous');
  };

  const toggle = (setter: React.Dispatch<React.SetStateAction<string[]>>) => (key: string) => {
    setter((prev) => (prev.includes(key) ? prev.filter((s) => s !== key) : [...prev, key]));
  };

  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 = '';
  };

  // Optional, but if given it must be usable — a bad email/URL would otherwise
  // be stored and then silently hidden.
  const contactError = email.trim() && !isValidEmail(email)
    ? t('labUi.become.invalidEmail')
    : website.trim() && !sanitizeUrl(normalizeUrlInput(website))
      ? t('labUi.become.invalidWebsite')
      : portfolio.trim() && !sanitizeUrl(normalizeUrlInput(portfolio))
        ? t('labUi.become.invalidPortfolio')
        : '';

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

    if (contactError) {
      document.getElementById('contact-error')?.scrollIntoView({ behavior: 'smooth', block: 'center' });
      toast({ title: t('labUi.become.checkContact'), description: contactError, variant: 'destructive' });
      return;
    }

    if (selectedServices.length === 0) {
      document.querySelector('form')?.scrollIntoView({ behavior: 'smooth', block: 'start' });
      toast({ title: t('labUi.builderForm.buildTypesRequired'), description: t('labUi.builderForm.selectBuild'), variant: 'destructive' });
      return;
    }

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

      const tags: string[][] = [
        ['d', identifier],
        ['title', titleInput.trim() || displayName],
        ['t', 'skatebuilder'],
        ['alt', `Skate ramp/park builder: ${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 s of [...selectedServices, ...selectedSkills, ...selectedScale]) {
        tags.push(['t', s]);
      }

      if (gear.trim()) tags.push(['gear', gear.trim()]);
      if (serviceArea.trim()) tags.push(['service_area', serviceArea.trim()]);
      if (insured) tags.push(['insured', 'true']);
      if (image) tags.push(['image', image]);
      if (experience.trim()) tags.push(['experience', experience.trim()]);
      if (rate.trim()) tags.push(['rate', rate.trim()]);
      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 (portfolio.trim()) tags.push(['portfolio', normalizeUrlInput(portfolio)]);
      if (social.trim()) tags.push(['social', normalizeUrlInput(social)]);
      if (isValidNoffer(noffer.trim())) tags.push(['noffer', noffer.trim().toLowerCase()]);

      tags.push(['entity', entityType]);
      for (const extra of extraTags) tags.push(extra);
      if (lead_time.trim()) tags.push(['lead_time', lead_time.trim()]);
      if (warranty.trim()) tags.push(['warranty', warranty.trim()]);
      if (entityType === 'collective') {
        for (const pk of members) tags.push(['p', pk]);
        if (crewRef) tags.push(['a', crewRef]);
      }

      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_BUILDER_KIND,
        content: bio.trim(),
        tags,
      });
      draft.clear();

      toast({ title: existingProfile ? t('labUi.builderForm.updated') : t('labUi.builderForm.created'), description: t('labUi.become.profilePublished') });
      navigate(`${labProfilePath('builder', user?.pubkey ?? '', identifier)}${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">
              <HardHat 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.builder') })}</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 text-amber-400" style={{ fontFamily: 'Impact, "Arial Black", sans-serif' }}>
            {t('labUi.builderForm.heading')}
          </h1>
          <p className="text-gray-400 mt-1">{t('labUi.builderForm.tagline')}</p>

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

          {/* Wallet Requirement */}
          <Card className="mt-4 bg-amber-950/30 border-2 border-amber-500/50">
            <CardContent className="p-4">
              <div className="flex items-start gap-3">
                <Wallet className="h-6 w-6 text-amber-400 flex-shrink-0 mt-0.5" />
                <div className="flex-1">
                  <h3 className="font-bold text-amber-400 mb-2">{t('labUi.become.paymentSetup')}</h3>
                  <p className="text-sm text-gray-300 mb-3">
                    {t('labUi.builderForm.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-amber-500 hover:bg-amber-600 text-black 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-amber-500/50 text-amber-400 hover:bg-amber-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.tip')}
                      </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={selectedServices.length + selectedSkills.length + selectedScale.length > 0}
          hasRate={!!rate.trim()}
          hasContact={!!(email || website || phone || social)}
          hasLocation={!!location.trim()}
        />

        <form onSubmit={handleSubmit}>
          <Card className="bg-gray-900 border-gray-700">
            <CardHeader>
              <CardTitle className="flex items-center gap-2">
                <HardHat className="h-5 w-5 text-amber-400" /> {t('labUi.builderForm.profileTitle')}
              </CardTitle>
              <CardDescription className="text-gray-400">{t('labUi.builderForm.profileDesc')}</CardDescription>
            </CardHeader>
            <CardContent className="space-y-6">
              <div className="space-y-2">
                <Label>{t('labUi.builderForm.identity')}</Label>
                <div className="p-4 rounded-lg border-2 border-amber-500/30 bg-amber-500/5">
                  <p className="font-black text-lg">{getDisplayName()}</p>
                  <p className="text-sm text-gray-400 mt-1">{t('labUi.become.fromNostrProfile')}</p>
                </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.builderForm.headlineExample') })}
                </p>
              </div>

              <div className="space-y-2">
                <Label htmlFor="bio">{t('labUi.builderForm.bioLabel')}</Label>
                <Textarea id="bio" placeholder={t('labUi.builderForm.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>

              {/* Individual vs Collective — defaults to collective for builders */}
              <EntityTypeField
                entityType={entityType}
                onEntityTypeChange={setEntityType}
                members={members}
                onMembersChange={setMembers}
                accentBg="bg-amber-500 hover:bg-amber-600 text-black"
                accentText="text-amber-400"
              />

              {entityType === 'collective' && (
                <CrewLinkField value={crewRef} onChange={setCrewRef} accentBg="bg-amber-500 hover:bg-amber-600 text-black" accentText="text-amber-400" />
              )}

              {/* Build types */}
              <div className="space-y-3">
                <Label>{t('labUi.builderForm.buildTypesLabel')}</Label>
                <div className="grid grid-cols-1 sm:grid-cols-2 gap-2">
                  {SERVICE_ENTRIES.map(([service, label]) => (
                    <button
                      key={service}
                      type="button"
                      onClick={() => toggle(setSelectedServices)(service)}
                      className={cn(
                        'p-3 rounded-lg text-left transition-all border text-sm',
                        selectedServices.includes(service)
                          ? 'bg-amber-500 text-black border-amber-500'
                          : 'bg-gray-800 hover:bg-gray-700 border-gray-700'
                      )}
                    >
                      <div className="font-bold">{BUILDER_SERVICE_KEYS[service] ? t(BUILDER_SERVICE_KEYS[service]) : label}</div>
                      <div className={cn('text-xs mt-1 line-clamp-1', selectedServices.includes(service) ? 'text-black/70' : 'text-gray-400')}>
                        {BUILDER_SERVICE_DESC_KEYS[service] ? t(BUILDER_SERVICE_DESC_KEYS[service]) : BUILDER_SERVICE_DESCRIPTIONS[service]}
                      </div>
                    </button>
                  ))}
                </div>
              </div>

              {/* Materials / trade skills */}
              <div className="space-y-3">
                <Label className="flex items-center gap-2"><Hammer className="h-4 w-4 text-amber-400" /> {t('labUi.builderForm.materialsLabel')}</Label>
                <ChipGrid entries={SKILL_ENTRIES} keys={BUILDER_SKILL_KEYS} selected={selectedSkills} onToggle={toggle(setSelectedSkills)} />
              </div>

              {/* Scale */}
              <div className="space-y-3">
                <Label className="flex items-center gap-2">📐 {t('labUi.builderForm.scaleLabel')}</Label>
                <ChipGrid entries={SCALE_ENTRIES} keys={BUILDER_SCALE_KEYS} selected={selectedScale} onToggle={toggle(setSelectedScale)} />
              </div>

              {/* Freeform "how we work" */}
              <div className="space-y-2">
                <Label htmlFor="gear">{t('labUi.builderForm.gearLabel')}</Label>
                <Textarea
                  id="gear"
                  placeholder={t('labUi.builderForm.gearPlaceholder')}
                  value={gear}
                  onChange={(e) => setGear(e.target.value)}
                  rows={3}
                  className="bg-gray-800 border-gray-700"
                />
                <p className="text-xs text-gray-500">{t('labUi.builderForm.gearHelper')}</p>
              </div>

              <div className="grid grid-cols-2 gap-4">
                <div className="space-y-2">
                  <Label htmlFor="experience">{t('labUi.builderForm.yearsBuilding')}</Label>
                  <Input id="experience" type="number" placeholder="10" value={experience} onChange={(e) => setExperience(e.target.value)} className="bg-gray-800 border-gray-700" />
                </div>
                <div className="space-y-2">
                  <Label htmlFor="rate">{t('labUi.builderForm.rateLabel')}</Label>
                  <Input id="rate" placeholder={t('labUi.builderForm.ratePlaceholder')} value={rate} onChange={(e) => setRate(e.target.value)} className="bg-gray-800 border-gray-700" />
                </div>
              </div>

              <div className="space-y-2">
                <Label htmlFor="serviceArea">{t('labUi.builderForm.serviceArea')}</Label>
                <Input id="serviceArea" placeholder={t('labUi.builderForm.serviceAreaPlaceholder')} value={serviceArea} onChange={(e) => setServiceArea(e.target.value)} className="bg-gray-800 border-gray-700" />
              </div>

              <div className="flex items-center justify-between rounded-lg border border-gray-700 bg-gray-800/60 p-3">
                <div>
                  <Label htmlFor="insured" className="font-bold">{t('labUi.builderForm.insured')}</Label>
                  <p className="text-xs text-gray-500">{t('labUi.builderForm.insuredHelper')}</p>
                </div>
                <Switch id="insured" checked={insured} onCheckedChange={setInsured} />
              </div>

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

              {/* Contact */}
              <div className="space-y-3">
                <Label className="text-base font-bold">{t('labUi.builderForm.contactPortfolio')}</Label>
                <p className="text-sm text-gray-400">{t('labUi.builderForm.contactPortfolioDesc')}</p>
                <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
                  <div className="space-y-2">
                    <Label htmlFor="portfolio">{t('labUi.builderForm.pastBuilds')}</Label>
                    <Input id="portfolio" type="url" placeholder="https://instagram.com/crew" value={portfolio} onChange={(e) => setPortfolio(e.target.value)} className="bg-gray-800 border-gray-700" />
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="website">{t('labUi.become.website')}</Label>
                    <Input id="website" type="url" placeholder="https://ourbuilds.com" value={website} onChange={(e) => setWebsite(e.target.value)} className="bg-gray-800 border-gray-700" />
                  </div>
                  <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="crew@example.com" value={email} onChange={(e) => setEmail(e.target.value)} className="bg-gray-800 border-gray-700" />
                  </div>
                  <div className="space-y-2 sm:col-span-2">
                    <Label htmlFor="social">{t('labUi.become.otherSocial')}</Label>
                    <Input id="social" placeholder="@username or link" value={social} onChange={(e) => setSocial(e.target.value)} className="bg-gray-800 border-gray-700" />
                  </div>
                </div>
                {contactError && <p id="contact-error" className="text-sm text-red-400">{contactError}</p>}
                <PaymentReadinessNote />
                <NofferField value={noffer} onChange={setNoffer} />
                <div className="p-3 rounded-lg border border-amber-500/30 bg-amber-500/5">
                  <p className="text-sm text-gray-300">{t('labUi.builderForm.dmNote')}</p>
                </div>
              </div>

              {/* Spot Picker — spots they've built */}
              <SpotPicker
                selectedSpots={selectedSpots}
                onSpotsChange={setSelectedSpots}
                maxSpots={8}
                label={t('labUi.builderForm.spotsLabel')}
                description={t('labUi.builderForm.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>

              <div className="space-y-2">
                <Label>{t('labUi.builderForm.logoPhoto')}</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="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>

              {/* Optional Pro upgrade — free to list without it */}
              <Card className="bg-gray-900 border-gray-700">
                <CardContent className="p-4 space-y-4">
                  <Label className="text-base font-bold">{t('labUi.craftFields.detailsTitle')}</Label>
                <div className="space-y-2">
                  <Label>{t('labUi.craftFields.leadTime')}</Label>
                  <Input value={lead_time} onChange={(e) => setLeadTime(e.target.value)} placeholder="e.g. 2–4 weeks" className="bg-gray-800 border-gray-700" />
                </div>
                <div className="space-y-2">
                  <Label>{t('labUi.craftFields.warranty')}</Label>
                  <Input value={warranty} onChange={(e) => setWarranty(e.target.value)} placeholder="e.g. 12 months on ramps" className="bg-gray-800 border-gray-700" />
                </div>
                </CardContent>
              </Card>

              <LabExtrasFields
                existingTags={existingProfile?.tags}
                onChange={setExtraTags}
                accentText="text-amber-400"
                accentChip="bg-amber-500 text-black border-amber-500"
                accentChipHover="hover:border-amber-500/60 hover:text-amber-400"
                rateUnits={pickRateUnits('project', 'day', 'hour')}
              />

              <LabProUpgrade enabled={goPro} onEnabledChange={setGoPro} accentText="text-amber-400" entityCoord={user ? `${SKATE_BUILDER_KIND}:${user.pubkey}:builder-profile` : undefined} />

              <Button
                type="button"
                variant="outline"
                onClick={() => setPreviewOpen(true)}
                className="w-full h-10 gap-2 border-gray-700 font-bold"
              >
                <Eye className="h-4 w-4" /> {t('labUi.preview.button')}
              </Button>

              <Button
                type="submit"
                className="w-full bg-amber-500 hover:bg-amber-600 text-black uppercase font-black"
                disabled={isPublishing || isUploading}
              >
                {isPublishing ? (
                  <><Loader2 className="h-4 w-4 mr-2 animate-spin" />{t('labUi.become.publishing')}</>
                ) : (
                  <><HardHat className="h-4 w-4 mr-2" />{existingProfile ? t('labUi.builderForm.update') : isPro ? t('labUi.builderForm.createPro') : t('labUi.builderForm.create')}</>
                )}
              </Button>
            </CardContent>
          </Card>
        </form>
      </div>

      <LabProfilePreview
        open={previewOpen}
        onOpenChange={setPreviewOpen}
        heading={t('labUi.detail.noun.builder')}
        noun={t('labUi.detail.noun.builder')}
        accentText="text-amber-400"
        accentChip="bg-amber-500 text-black border-amber-500"
        icon={HardHat}
        draft={{
          title: titleInput.trim() || getDisplayName(),
          bio, image, location, experience, rate,
          extraTags,
          contact: { phone, email, website, portfolio, social, noffer },
        }}
      />
    </>
  );
}