@extends('layouts.app')

@section('content')
<div class="container py-4" x-data="partiesKorekta()" x-init="showModal=false">
    <style>[x-cloak]{display:none!important}</style>
    @php
    // Mapuj prefill na zmienne używane dalej w widoku:
    $p1 = $p1 ?? ($prefill['podmiot1'] ?? []);
    $p2 = $p2 ?? ($prefill['podmiot2'] ?? []);
    $p3 = $p3 ?? ($prefill['podmiot3'] ?? []);
    $up = $up ?? ($prefill['upowazniony'] ?? []);
@endphp

    {{-- Nagłówek --}}
    <div class="d-flex flex-wrap align-items-center justify-content-between mb-4">
        <div>
            <h2 class="h5 fw-semibold mb-1">Korekta — Krok 2/5: Podmioty</h2>
            <p class="text-secondary small mb-0">
                Korekta ID: {{ $korekta->id }} · Faktura korygowana: {{ $korekta->nr_faktury_korygowanej }} ({{ \Illuminate\Support\Str::of($korekta->data_faktury_korygowanej)->toString() }})
            </p>
        </div>
        <a href="{{ route('korekty.create.header', $korekta->faktura_id) }}" class="btn btn-outline-secondary">
            Wróć do nagłówka
        </a>
    </div>

    {{-- Pasek postępu --}}
    <div class="mb-4">
        <div class="progress" style="height:8px;"><div class="progress-bar bg-primary" style="width:40%"></div></div>
        <div class="d-flex justify-content-between small text-muted mt-2">
            <span>1. Nagłówek</span>
            <span class="fw-semibold text-primary">2. Podmioty</span>
            <span>3. Pozycje</span>
            <span>4. Płatności</span>
            <span>5. Podsumowanie</span>
        </div>
    </div>

    {{-- Komunikaty --}}
    @if (session('success')) <div class="alert alert-success">{{ session('success') }}</div> @endif
    @if ($errors->any())
        <div class="alert alert-danger">
            <ul class="mb-0 ps-3">@foreach ($errors->all() as $e) <li>{{ $e }}</li> @endforeach</ul>
        </div>
    @endif

    {{-- Szybkie akcje --}}
    <div class="glass-card mb-4 p-3">
        <div class="small text-muted mb-2">Szybkie uzupełnianie z kartoteki kontrahentów:</div>
        <div class="d-flex flex-wrap gap-2">
            <button type="button" class="btn btn-primary btn-sm" @click="openModal('podmiot1')">Wybierz dla Wystawcy</button>
            <button type="button" class="btn btn-primary btn-sm" @click="openModal('podmiot2')">Wybierz dla Nabywcy</button>
            <button type="button" class="btn btn-primary btn-sm" @click="p3=true; openModal('podmiot3')">Wybierz dla Podmiot 3</button>
            <button type="button" class="btn btn-primary btn-sm" @click="upow=true; openModal('upowazniony')">Wybierz dla Upoważnionego</button>
        </div>
    </div>

    <form method="POST" action="{{ route('korekty.store.parties', $korekta->id) }}">
        @csrf

        {{-- WYSTAWCA --}}
        <div class="card glass-card mb-4 shadow-sm">
            <div class="card-header d-flex justify-content-between align-items-center bg-transparent border-bottom">
                <div>
                    <h5 class="mb-0">Podmiot 1 — Wystawca</h5>
                    <small class="text-muted">Identyfikacja: NIP / (Kod UE + Nr VAT UE) / Nr ID. Adres wg pól <b>kod_kraju</b> + <b>adres_l1..l5</b>.</small>
                </div>
                <button type="button" class="btn btn-primary btn-sm" @click="openModal('podmiot1')">Z kontrahentów</button>
            </div>
            <div class="card-body">
                @php $r = $p1; @endphp
                <div class="row g-3">
                    {{-- identyfikacja --}}
                    <div class="col-md-3"><label class="form-label small">NIP</label>
                        <input name="podmiot1[nip]" value="{{ old('podmiot1.nip', $r->nip ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-2"><label class="form-label small">Kod UE</label>
                        <input name="podmiot1[kod_ue]" value="{{ old('podmiot1.kod_ue', $r->kod_ue ?? '') }}" class="form-control form-control-sm" placeholder="PL">
                    </div>
                    <div class="col-md-3"><label class="form-label small">Nr VAT UE</label>
                        <input name="podmiot1[nr_vat_ue]" value="{{ old('podmiot1.nr_vat_ue', $r->nr_vat_ue ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-4"><label class="form-label small">Nr ID (opcjonalnie)</label>
                        <input name="podmiot1[nrid]" value="{{ old('podmiot1.nrid', $r->nrid ?? '') }}" class="form-control form-control-sm">
                    </div>

                    {{-- nazwa/osoba --}}
                    <div class="col-md-4"><label class="form-label small">Nazwa</label>
                        <input name="podmiot1[nazwa]" value="{{ old('podmiot1.nazwa', $r->nazwa ?? '') }}" class="form-control form-control-sm" placeholder="Firma albo podaj Imię/Nazwisko">
                    </div>
                    <div class="col-md-4"><label class="form-label small">Imię</label>
                        <input name="podmiot1[imie]" value="{{ old('podmiot1.imie', $r->imie ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-4"><label class="form-label small">Nazwisko</label>
                        <input name="podmiot1[nazwisko]" value="{{ old('podmiot1.nazwisko', $r->nazwisko ?? '') }}" class="form-control form-control-sm">
                    </div>

                    {{-- adres jak w fakturze --}}
                    <div class="col-md-2"><label class="form-label small">Kod kraju</label>
                        <input name="podmiot1[kod_kraju]" value="{{ old('podmiot1.kod_kraju', $r->kod_kraju ?? 'PL') }}" class="form-control form-control-sm" required>
                    </div>
                    <div class="col-md-10"><label class="form-label small">Adres L1</label>
                        <input name="podmiot1[adres_l1]" value="{{ old('podmiot1.adres_l1', $r->adres_l1 ?? '') }}" class="form-control form-control-sm" required>
                    </div>
                    <div class="col-md-3"><label class="form-label small">Adres L2</label>
                        <input name="podmiot1[adres_l2]" value="{{ old('podmiot1.adres_l2', $r->adres_l2 ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-3"><label class="form-label small">Adres L3</label>
                        <input name="podmiot1[adres_l3]" value="{{ old('podmiot1.adres_l3', $r->adres_l3 ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-3"><label class="form-label small">Adres L4 (miasto)</label>
                        <input name="podmiot1[adres_l4]" value="{{ old('podmiot1.adres_l4', $r->adres_l4 ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-3"><label class="form-label small">Adres L5 (kod)</label>
                        <input name="podmiot1[adres_l5]" value="{{ old('podmiot1.adres_l5', $r->adres_l5 ?? '') }}" class="form-control form-control-sm">
                    </div>

                    {{-- kontakt --}}
                    <div class="col-md-6"><label class="form-label small">E-mail</label>
                        <input name="podmiot1[email]" value="{{ old('podmiot1.email', $r->email ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-6"><label class="form-label small">Telefon</label>
                        <input name="podmiot1[telefon]" value="{{ old('podmiot1.telefon', $r->telefon ?? '') }}" class="form-control form-control-sm">
                    </div>
                </div>
            </div>
        </div>

        {{-- NABYWCA --}}
        <div class="card glass-card mb-4 shadow-sm">
            <div class="card-header d-flex justify-content-between align-items-center bg-transparent border-bottom">
                <div>
                    <h5 class="mb-0">Podmiot 2 — Nabywca</h5>
                    <small class="text-muted">Analogicznie jak Wystawca (te same pola).</small>
                </div>
                <button type="button" class="btn btn-primary btn-sm" @click="openModal('podmiot2')">Z kontrahentów</button>
            </div>
            <div class="card-body">
                @php $r = $p2; @endphp
                <div class="row g-3">
                    {{-- identyfikacja --}}
                    <div class="col-md-3"><label class="form-label small">NIP</label>
                        <input name="podmiot2[nip]" value="{{ old('podmiot2.nip', $r->nip ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-2"><label class="form-label small">Kod UE</label>
                        <input name="podmiot2[kod_ue]" value="{{ old('podmiot2.kod_ue', $r->kod_ue ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-3"><label class="form-label small">Nr VAT UE</label>
                        <input name="podmiot2[nr_vat_ue]" value="{{ old('podmiot2.nr_vat_ue', $r->nr_vat_ue ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-4"><label class="form-label small">Nr ID (opcjonalnie)</label>
                        <input name="podmiot2[nrid]" value="{{ old('podmiot2.nrid', $r->nrid ?? '') }}" class="form-control form-control-sm">
                    </div>

                    {{-- nazwa/osoba --}}
                    <div class="col-md-4"><label class="form-label small">Nazwa</label>
                        <input name="podmiot2[nazwa]" value="{{ old('podmiot2.nazwa', $r->nazwa ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-4"><label class="form-label small">Imię</label>
                        <input name="podmiot2[imie]" value="{{ old('podmiot2.imie', $r->imie ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-4"><label class="form-label small">Nazwisko</label>
                        <input name="podmiot2[nazwisko]" value="{{ old('podmiot2.nazwisko', $r->nazwisko ?? '') }}" class="form-control form-control-sm">
                    </div>

                    {{-- adres --}}
                    <div class="col-md-2"><label class="form-label small">Kod kraju</label>
                        <input name="podmiot2[kod_kraju]" value="{{ old('podmiot2.kod_kraju', $r->kod_kraju ?? 'PL') }}" class="form-control form-control-sm" required>
                    </div>
                    <div class="col-md-10"><label class="form-label small">Adres L1</label>
                        <input name="podmiot2[adres_l1]" value="{{ old('podmiot2.adres_l1', $r->adres_l1 ?? '') }}" class="form-control form-control-sm" required>
                    </div>
                    <div class="col-md-3"><label class="form-label small">Adres L2</label>
                        <input name="podmiot2[adres_l2]" value="{{ old('podmiot2.adres_l2', $r->adres_l2 ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-3"><label class="form-label small">Adres L3</label>
                        <input name="podmiot2[adres_l3]" value="{{ old('podmiot2.adres_l3', $r->adres_l3 ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-3"><label class="form-label small">Adres L4 (miasto)</label>
                        <input name="podmiot2[adres_l4]" value="{{ old('podmiot2.adres_l4', $r->adres_l4 ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-3"><label class="form-label small">Adres L5 (kod)</label>
                        <input name="podmiot2[adres_l5]" value="{{ old('podmiot2.adres_l5', $r->adres_l5 ?? '') }}" class="form-control form-control-sm">
                    </div>

                    {{-- kontakt --}}
                    <div class="col-md-6"><label class="form-label small">E-mail</label>
                        <input name="podmiot2[email]" value="{{ old('podmiot2.email', $r->email ?? '') }}" class="form-control form-control-sm">
                    </div>
                    <div class="col-md-6"><label class="form-label small">Telefon</label>
                        <input name="podmiot2[telefon]" value="{{ old('podmiot2.telefon', $r->telefon ?? '') }}" class="form-control form-control-sm">
                    </div>
                </div>
            </div>
        </div>

        {{-- DODATKOWE PODMIOTY --}}
        <div class="card glass-card mb-4 shadow-sm">
            <div class="card-header d-flex justify-content-between align-items-center bg-transparent border-bottom">
                <h5 class="mb-0">Dodatkowe podmioty (opcjonalne)</h5>
                <div class="d-flex gap-2">
                    <button type="button" class="btn btn-outline-primary btn-sm" @click="p3=!p3">
                        <span x-show="!p3">+ Podmiot 3</span><span x-show="p3">− Podmiot 3</span>
                    </button>
                    <button type="button" class="btn btn-outline-primary btn-sm" @click="upow=!upow">
                        <span x-show="!upow">+ Upoważniony</span><span x-show="upow">− Upoważniony</span>
                    </button>
                </div>
            </div>
            <div class="card-body">
                @php $r3 = $p3; @endphp
                <div class="border rounded p-3 mb-3" x-show="p3" x-cloak>
                    <div class="d-flex justify-content-between align-items-center mb-2">
                        <h6 class="mb-0">Podmiot 3</h6>
                        <button type="button" class="btn btn-primary btn-sm" @click="openModal('podmiot3')">Z kontrahentów</button>
                    </div>
                    <div class="row g-3">
                        <div class="col-md-3"><input name="podmiot3[nip]" value="{{ old('podmiot3.nip', $r3->nip ?? '') }}" class="form-control form-control-sm" placeholder="NIP"></div>
                        <div class="col-md-2"><input name="podmiot3[kod_ue]" value="{{ old('podmiot3.kod_ue', $r3->kod_ue ?? '') }}" class="form-control form-control-sm" placeholder="Kod UE"></div>
                        <div class="col-md-3"><input name="podmiot3[nr_vat_ue]" value="{{ old('podmiot3.nr_vat_ue', $r3->nr_vat_ue ?? '') }}" class="form-control form-control-sm" placeholder="Nr VAT UE"></div>

                        <div class="col-md-4"><input name="podmiot3[nazwa]" value="{{ old('podmiot3.nazwa', $r3->nazwa ?? '') }}" class="form-control form-control-sm" placeholder="Nazwa (opc.)"></div>
                        <div class="col-md-4"><input name="podmiot3[imie]" value="{{ old('podmiot3.imie', $r3->imie ?? '') }}" class="form-control form-control-sm" placeholder="Imię (opc.)"></div>
                        <div class="col-md-4"><input name="podmiot3[nazwisko]" value="{{ old('podmiot3.nazwisko', $r3->nazwisko ?? '') }}" class="form-control form-control-sm" placeholder="Nazwisko (opc.)"></div>

                        {{-- adres spójny z fakturą/korektą --}}
                        <div class="col-md-2"><input name="podmiot3[kod_kraju]" value="{{ old('podmiot3.kod_kraju', $r3->kod_kraju ?? 'PL') }}" class="form-control form-control-sm" placeholder="Kod kraju"></div>
                        <div class="col-md-4"><input name="podmiot3[adres_l1]" value="{{ old('podmiot3.adres_l1', $r3->adres_l1 ?? '') }}" class="form-control form-control-sm" placeholder="Adres L1"></div>
                        <div class="col-md-2"><input name="podmiot3[adres_l2]" value="{{ old('podmiot3.adres_l2', $r3->adres_l2 ?? '') }}" class="form-control form-control-sm" placeholder="Adres L2"></div>
                        <div class="col-md-2"><input name="podmiot3[adres_l3]" value="{{ old('podmiot3.adres_l3', $r3->adres_l3 ?? '') }}" class="form-control form-control-sm" placeholder="Adres L3"></div>
                        <div class="col-md-2"><input name="podmiot3[adres_l4]" value="{{ old('podmiot3.adres_l4', $r3->adres_l4 ?? '') }}" class="form-control form-control-sm" placeholder="Adres L4"></div>
                        <div class="col-md-2"><input name="podmiot3[adres_l5]" value="{{ old('podmiot3.adres_l5', $r3->adres_l5 ?? '') }}" class="form-control form-control-sm" placeholder="Adres L5"></div>
                    </div>
                </div>

                @php $ru = $up; @endphp
                <div class="border rounded p-3" x-show="upow" x-cloak>
                    <div class="d-flex justify-content-between align-items-center mb-2">
                        <h6 class="mb-0">Podmiot upoważniony</h6>
                        <button type="button" class="btn btn-primary btn-sm" @click="openModal('upowazniony')">Z kontrahentów</button>
                    </div>
                    <div class="row g-3">
                        <div class="col-md-4"><input name="upowazniony[imie]" value="{{ old('upowazniony.imie', $ru->imie ?? '') }}" class="form-control form-control-sm" placeholder="Imię"></div>
                        <div class="col-md-4"><input name="upowazniony[nazwisko]" value="{{ old('upowazniony.nazwisko', $ru->nazwisko ?? '') }}" class="form-control form-control-sm" placeholder="Nazwisko"></div>
                        <div class="col-md-4"><input name="upowazniony[email]" value="{{ old('upowazniony.email', $ru->email ?? '') }}" class="form-control form-control-sm" placeholder="E-mail"></div>
                        <div class="col-md-4"><input name="upowazniony[telefon]" value="{{ old('upowazniony.telefon', $ru->telefon ?? '') }}" class="form-control form-control-sm" placeholder="Telefon"></div>
                    </div>
                </div>
            </div>
        </div>

        {{-- Przyciski --}}
        <div class="d-flex justify-content-between">
            <a href="{{ route('korekty.create.header', $korekta->faktura_id) }}" class="btn btn-outline-secondary">Wstecz</a>
            <button type="submit" class="btn btn-primary">Zapisz podmioty i przejdź dalej</button>
        </div>
    </form>

    {{-- === MODAL (pokazywany tylko gdy showModal === true) === --}}
    <template x-if="showModal">
      <div class="position-fixed top-0 start-0 w-100 h-100 d-flex align-items-center justify-content-center" style="z-index:1050;"
           @keydown.escape.window="closeModal()">
        <div class="position-absolute top-0 start-0 w-100 h-100 bg-dark bg-opacity-50" @click="closeModal()"></div>

        <div class="glass-card shadow-lg position-relative w-100 mx-3" style="max-width:720px;" @click.stop>
          <div class="p-3 border-bottom d-flex align-items-center justify-content-between">
            <h5 class="mb-0">
              Wybierz kontrahenta <span class="text-muted" x-text="targetLabel()"></span>
            </h5>
            <button type="button" class="btn btn-sm btn-light" @click="closeModal()">✕</button>
          </div>

          <div class="p-3">
            <div class="input-group">
              <input type="text" class="form-control" placeholder="Szukaj: nazwa / osoba / NIP"
                     x-model="query" @input.debounce.300ms="search()">
              <button class="btn btn-primary" type="button" @click="search()">Szukaj</button>
            </div>
            <div class="small text-muted mt-2" x-show="loading">Szukam…</div>

            <div class="list-group mt-3" x-show="results.length" style="max-height:360px; overflow:auto;">
              <template x-for="row in results" :key="row.id_kontrahent">
                <button type="button" class="list-group-item list-group-item-action" @click="pick(row)">
                  <strong x-text="row.nazwa ?? ((row.imie ?? '')+' '+(row.nazwisko ?? ''))"></strong>
                  <div class="small text-muted"
                       x-text="row.nip ? ('NIP: '+row.nip) : (row.kod_ue && row.nr_vat_ue ? ('VAT UE: '+row.kod_ue+row.nr_vat_ue) : '')"></div>
                </button>
              </template>
            </div>

            <div class="small text-muted mt-2" x-show="!loading && !results.length && query.length">Brak wyników.</div>
          </div>

          <div class="p-3 border-top text-end">
            <button class="btn btn-outline-secondary" type="button" @click="closeModal()">Anuluj</button>
          </div>
        </div>
      </div>
    </template>
</div>

{{-- Fallback Alpine --}}
<script>
  (function(){
    if (!window.Alpine) {
      var s = document.createElement('script');
      s.src = 'https://unpkg.com/alpinejs@3.x.x/dist/cdn.min.js';
      s.defer = true;
      document.head.appendChild(s);
    }
  })();
</script>

{{-- Alpine logic --}}
<script>
  window.partiesKorekta = function () {
    return {
      p3: {{ $p3 ? 'true' : 'false' }},
      upow: {{ $up ? 'true' : 'false' }},
      showModal: false,
      target: null,
      query: '',
      loading: false,
      results: [],

      openModal(pfx){ this.target=pfx; this.query=''; this.results=[]; this.showModal=true; document.body.style.overflow='hidden'; },
      closeModal(){ this.showModal=false; document.body.style.overflow=''; },

      targetLabel(){
        return this.target === 'podmiot1' ? '(Wystawca)'
             : this.target === 'podmiot2' ? '(Nabywca)'
             : this.target === 'podmiot3' ? '(Podmiot 3)'
             : this.target === 'upowazniony' ? '(Upoważniony)' : '';
      },
      async search(){
        const q = this.query.trim();
        if (q.length < 2) { this.results = []; return; }
        this.loading = true;
        try {
          const res = await fetch(`{{ route('kontrahenci.search') }}?q=${encodeURIComponent(q)}`);
          this.results = await res.json();
        } catch (e) {
          console.error(e); this.results = [];
        } finally {
          this.loading = false;
        }
      },
      async pick(row){
        try {
          const res = await fetch(`{{ url('/kontrahenci') }}/${row.id_kontrahent}.json`);
          const k = await res.json();
          this.fillParty(this.target, k);
          this.closeModal();
        } catch (e) { console.error(e); }
      },
      fillParty(pfx, k){
        const set = (n, v) => {
          const el = document.querySelector(`[name="${pfx}[${n}]"]`);
          if (el) el.value = (v ?? '');
        };
        // identyfikacja
        set('nazwa', k.nazwa);
        set('imie', k.imie);
        set('nazwisko', k.nazwisko);
        set('nip', k.nip);
        set('kod_ue', k.kod_ue);
        set('nr_vat_ue', k.nr_vat_ue);
        set('nrid', k.nrid);

        // adres spójny z DB
        set('kod_kraju', k.kod_kraju ?? 'PL');
        set('adres_l1', k.adres_l1);
        set('adres_l2', k.adres_l2);
        set('adres_l3', k.adres_l3);
        set('adres_l4', k.adres_l4);
        set('adres_l5', k.adres_l5);

        // kontakt
        set('email', k.email);
        set('telefon', k.telefon);

        if (pfx === 'podmiot3') this.p3 = true;
        if (pfx === 'upowazniony') this.upow = true;
      }
    }
  }
</script>
@endsection

@push('styles')
<style>
.glass-card{
  background: rgba(255,255,255,.7);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid rgba(20,20,40,.1);
  border-radius: 1rem;
}
@media (prefers-color-scheme: dark){
  .glass-card{ background: rgba(25,27,32,.45); border-color: rgba(255,255,255,.08); }
}
</style>
@endpush