@extends('layouts.app')

@section('title', 'Dashboard - ERP-PLUS')
@section('page_title', 'Dashboard')
@section('page_subtitle', 'Manifesto do Destinatario NF-e — visao geral do sistema.')
@section('page_actions')
    <a class="button" href="{{ route('companies.create') }}">Cadastrar empresa</a>
    <a class="button primary" href="{{ route('sync.index') }}">Consultar NSU</a>
@endsection

@push('styles')
<style>
    .metric-ok   { border-left: 4px solid var(--ok); }
    .metric-warn { border-left: 4px solid #f59e0b; }
    .metric-danger { border-left: 4px solid var(--danger); }
    .progress-track { height: 5px; background: #e5edf2; border-radius: 3px; margin-top: 10px; overflow: hidden; }
    .progress-fill  { height: 5px; background: var(--ok); border-radius: 3px; transition: width .4s; }
    .alert-row { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 10px; align-items: center; padding: 11px 16px; border-bottom: 1px solid var(--border); font-size: 13px; }
    .alert-row:last-child { border-bottom: 0; }
    .alert-empty { padding: 18px 16px; color: var(--muted); font-size: 13px; }
    .deadline-days { font-size: 12px; font-weight: 700; color: var(--warn); white-space: nowrap; }
    .deadline-days.danger { color: var(--danger); }
    .company-row { display: grid; grid-template-columns: minmax(0,1fr) 80px 70px 90px 90px; gap: 10px; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 13px; }
    .company-row:last-child { border-bottom: 0; }
    .company-head { font-size: 11px; font-weight: 700; text-transform: uppercase; color: var(--muted); padding: 9px 16px; border-bottom: 1px solid var(--border); display: grid; grid-template-columns: minmax(0,1fr) 80px 70px 90px 90px; gap: 10px; background: #f8fafb; }
    .key-mono { font-family: monospace; font-size: 12px; }
</style>
@endpush

@php
    $rawDays = max(10, (int) (\App\Models\Setting::get('xml_deadline_days') ?? 90));
@endphp

@section('content')

    {{-- Top alert bar: critical system-wide issues --}}
    @php
        $criticalAlerts = 0;
        if ($companiesNoCert->isNotEmpty()) $criticalAlerts += $companiesNoCert->count();
        if ($companiesNeverSynced->isNotEmpty()) $criticalAlerts += $companiesNeverSynced->count();
        if ($expiredDocsCount > 0) $criticalAlerts += $expiredDocsCount;
    @endphp

    @if ($pendingCharges->isNotEmpty() && auth()->user()->role === \App\Models\User::ROLE_OPERATOR && auth()->id() !== 1)
        <div class="panel" style="margin-bottom:18px;border-left:4px solid #f59e0b">
            <div class="panel-header">
                <div>
                    <h2>Cobranças pendentes</h2>
                    <span>Voce tem {{ $pendingCharges->count() }} cobrança(s) aguardando pagamento.</span>
                </div>
                <a class="button" href="{{ route('subscription.charges') }}">Ver todas</a>
            </div>
            <div style="padding:0 16px 16px;display:flex;flex-direction:column;gap:10px">
                @foreach ($pendingCharges as $charge)
                    <div style="display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:#fffbeb;border:1px solid #fde68a;border-radius:8px;flex-wrap:wrap;gap:10px">
                        <div>
                            <div style="font-weight:600;font-size:14px">
                                R$ {{ number_format((float) $charge->amount, 2, ',', '.') }}
                                <span style="font-weight:400;color:var(--muted);font-size:13px">
                                    — {{ $charge->subscription?->plan?->name ?? 'Plano' }}
                                    @if ($charge->company) &bull; {{ $charge->company->name }} @endif
                                </span>
                            </div>
                            <div style="font-size:12px;color:var(--muted);margin-top:2px">
                                Vencimento: {{ $charge->due_date?->format('d/m/Y') ?? '-' }}
                            </div>
                        </div>
                        @if ($charge->invoice_url)
                            <a class="button primary" href="{{ $charge->invoice_url }}" target="_blank" style="font-size:13px;min-height:32px;padding:6px 14px">
                                Pagar agora
                            </a>
                        @endif
                    </div>
                @endforeach
            </div>
        </div>
    @endif

    @if ($criticalAlerts > 0 || $expiringCerts->isNotEmpty())
        <div class="panel" style="margin-bottom:18px;border-left:4px solid {{ $criticalAlerts > 0 ? 'var(--danger)' : '#f59e0b' }}">
            <div class="panel-header">
                <div>
                    <h2>
                        @if ($criticalAlerts > 0)
                            &#9888; {{ $criticalAlerts }} {{ $criticalAlerts === 1 ? 'problema critico requer atencao' : 'problemas criticos requerem atencao' }}
                        @else
                            &#9888; Alertas
                        @endif
                    </h2>
                    <span>Itens que impactam o funcionamento do sistema.</span>
                </div>
            </div>

            @if ($companiesNoCert->isNotEmpty())
                <div class="alert-row" style="background:#fef2f2">
                    <div>
                        <strong style="color:var(--danger)">Empresas sem certificado digital ativo</strong>
                        <div class="row-text">
                            @foreach ($companiesNoCert as $c)
                                <a href="{{ route('companies.edit', $c) }}" style="color:var(--danger)">{{ $c->name }}</a>@if (!$loop->last), @endif
                            @endforeach
                            &mdash; impossivel consultar SEFAZ sem certificado.
                        </div>
                    </div>
                    <a class="button" href="{{ route('companies.index') }}" style="min-height:28px;font-size:12px;padding:4px 10px">Resolver</a>
                </div>
            @endif

            @if ($companiesNeverSynced->isNotEmpty())
                <div class="alert-row" style="background:#fef2f2">
                    <div>
                        <strong style="color:var(--danger)">Empresas que nunca consultaram NSU</strong>
                        <div class="row-text">
                            @foreach ($companiesNeverSynced as $c)
                                <a href="{{ route('sync.index', ['company_id' => $c->id]) }}" style="color:var(--danger)">{{ $c->name }}</a>@if (!$loop->last), @endif
                            @endforeach
                            &mdash; nenhum documento recebido ainda.
                        </div>
                    </div>
                    <a class="button" href="{{ route('sync.index') }}" style="min-height:28px;font-size:12px;padding:4px 10px">Consultar</a>
                </div>
            @endif

            @if ($expiredDocsCount > 0)
                <div class="alert-row" style="background:#fef2f2">
                    <div>
                        <strong style="color:var(--danger)">{{ $expiredDocsCount }} NF-e{{ $expiredDocsCount > 1 ? 's' : '' }} com prazo de {{ $rawDays }} dias vencido</strong>
                        <div class="row-text">Sem manifestacao conclusiva — risco fiscal para as empresas envolvidas.</div>
                    </div>
                    <a class="button" href="{{ route('sync.index', ['date_to' => now()->subDays($rawDays)->format('Y-m-d')]) }}" style="min-height:28px;font-size:12px;padding:4px 10px">Ver</a>
                </div>
            @endif

            @if ($expiringCerts->isNotEmpty())
                <div class="alert-row" style="background:#fffbeb">
                    <div>
                        <strong style="color:#b45309">{{ $expiringCerts->count() }} certificado{{ $expiringCerts->count() > 1 ? 's' : '' }} vencendo em 30 dias</strong>
                        <div class="row-text">
                            @foreach ($expiringCerts as $cert)
                                {{ $cert->company->name }} ({{ $cert->valid_until->format('d/m/Y') }})@if (!$loop->last), @endif
                            @endforeach
                        </div>
                    </div>
                    <a class="button" href="{{ route('companies.index') }}" style="min-height:28px;font-size:12px;padding:4px 10px">Renovar</a>
                </div>
            @endif

        </div>
    @endif

    {{-- Info notices --}}
    @php
        $dlStart = now()->subDays($rawDays)->format('d/m/Y');
        $dlEnd   = now()->format('d/m/Y');
    @endphp
    <div class="panel" style="margin-bottom:18px;border-left:4px solid var(--primary)">
        <div class="panel-header">
            <div>
                <h2>&#9432; Periodo de consulta</h2>
                <span>Dados disponiveis de <strong>{{ $dlStart }}</strong> ate <strong>{{ $dlEnd }}</strong> (prazo configurado de {{ $rawDays }} dias).</span>
            </div>
        </div>
    </div>

    <div class="panel" style="margin-bottom:18px;border-left:4px solid #a16207">
        <div class="panel-header">
            <div>
                <h2>&#9432; Disponibilidade dos XMLs</h2>
                <span>Mesmo que a NF-e conste na relacao, nao ha garantia de que o XML completo esteja disponivel para download devido a regras nacionais e estaduais da SEFAZ. O sistema disponibiliza uma ferramenta de <a href="{{ route('busca-chave.index') }}" style="color:var(--primary)">upload manual</a> para manter os dados atualizados.</span>
            </div>
        </div>
    </div>

    {{-- Metric strip --}}
    <div class="status-strip" style="grid-template-columns: repeat(6, minmax(0,1fr))">

        <div class="metric">
            <div class="metric-label">Total NF-es</div>
            <div class="metric-value">{{ number_format($totalDocs) }}</div>
            <div class="metric-note">{{ $companies->count() }} {{ $companies->count() === 1 ? 'empresa' : 'empresas' }} cadastradas</div>
        </div>

        <div class="metric {{ $pendingCiencia > 0 ? 'metric-warn' : 'metric-ok' }}">
            <div class="metric-label">Ciencia pendente</div>
            <div class="metric-value">{{ number_format($pendingCiencia) }}</div>
            <div class="metric-note">{{ $pendingCiencia > 0 ? 'Aguardam manifestacao' : 'Tudo manifestado' }}</div>
        </div>

        <div class="metric">
            <div class="metric-label">XML completo</div>
            <div class="metric-value">{{ number_format($xmlDownloaded) }}</div>
            <div class="metric-note">{{ $completionRate }}% dos documentos &middot; {{ number_format($pendingXmlCount) }} pendentes</div>
            <div class="progress-track">
                <div class="progress-fill" style="width: {{ $completionRate }}%"></div>
            </div>
        </div>

        <div class="metric {{ $outgoingCount > 0 ? '' : 'metric-ok' }}">
            <div class="metric-label">NF-es emitidas</div>
            <div class="metric-value">{{ number_format($outgoingCount) }}</div>
            <div class="metric-note">{{ $outgoingCount > 0 ? 'Documentos de saida' : 'Nenhuma emitida' }}</div>
        </div>

        <div class="metric">
            <div class="metric-label">Manifestacoes</div>
            <div class="metric-value">{{ number_format($manifestationsCount) }}</div>
            <div class="metric-note">Eventos enviados a SEFAZ</div>
        </div>

        <div class="metric metric-ok">
            <div class="metric-label">Armazenamento</div>
            <div class="metric-value" style="font-size:20px">{{ $storageUsed }}</div>
            <div class="metric-note">XMLs armazenados no banco</div>
        </div>

    </div>

    {{-- Main grid --}}
    <div class="panel-grid">

        {{-- Company health --}}
        <div class="panel">
            <div class="panel-header">
                <div>
                    <h2>Saude das empresas</h2>
                    <span>Status operacional por empresa — certificado, NSU e XML.</span>
                </div>
                <a class="button" href="{{ route('companies.index') }}" style="min-height:32px;font-size:13px;padding:6px 12px">Gerenciar</a>
            </div>

            @if ($companies->isEmpty())
                <div class="alert-empty">Nenhuma empresa cadastrada. <a href="{{ route('companies.create') }}">Cadastrar agora</a></div>
            @else
                @php
                    $healthClass = function ($company) {
                        $cert = $company->certificates->firstWhere('is_active', true);
                        if (! $cert) return 'metric-danger';
                        if ($cert->valid_until && $cert->valid_until->isPast()) return 'metric-danger';
                        $neverSynced = ! $company->nsuCursor || ((int) $company->nsuCursor->ult_nsu) === 0;
                        if ($neverSynced) return 'metric-warn';
                        if ($cert->valid_until && $cert->valid_until->lt(now()->addDays(30))) return 'metric-warn';
                        return 'metric-ok';
                    };
                    $healthLabel = function ($company) {
                        $cert = $company->certificates->firstWhere('is_active', true);
                        if (! $cert) return 'Sem certificado';
                        if ($cert->valid_until && $cert->valid_until->isPast()) return 'Cert. vencido';
                        $neverSynced = ! $company->nsuCursor || ((int) $company->nsuCursor->ult_nsu) === 0;
                        if ($neverSynced) return 'Nunca consultou';
                        if ($cert->valid_until && $cert->valid_until->lt(now()->addDays(30))) return 'Cert. expirando';
                        return 'OK';
                    };
                    $healthPill = function ($company) {
                        $cert = $company->certificates->firstWhere('is_active', true);
                        if (! $cert) return 'pill';
                        if ($cert->valid_until && $cert->valid_until->isPast()) return 'pill';
                        $neverSynced = ! $company->nsuCursor || ((int) $company->nsuCursor->ult_nsu) === 0;
                        if ($neverSynced) return 'pill warn';
                        if ($cert->valid_until && $cert->valid_until->lt(now()->addDays(30))) return 'pill warn';
                        return 'pill ok';
                    };
                @endphp
                <div class="company-head">
                    <span>Empresa</span>
                    <span>Saude</span>
                    <span>NF-es</span>
                    <span>Documentos</span>
                    <span>Ultima consulta</span>
                </div>
                @foreach ($companies as $company)
                    @php
                        $cert = $company->certificates->firstWhere('is_active', true);
                        $companyPendingCiencia = $company->nfeDocuments()->whereDoesntHave('manifestations', fn ($q) => $q
                            ->where('event_code', \App\Models\NfeManifestation::EVENT_CIENCIA_OPERACAO)
                            ->whereIn('response_status_code', ['135', '136', '573'])
                        )->count();
                    @endphp
                    <div class="company-row">
                        <div>
                            <strong>{{ $company->name }}</strong>
                            <div class="row-text">{{ $company->cnpj }} &middot; {{ $company->uf }}</div>
                        </div>
                        <div>
                            <span class="{{ $healthPill($company) }}" style="min-width:0;padding:4px 8px;font-size:11px">{{ $healthLabel($company) }}</span>
                        </div>
                        <div style="font-weight:700">{{ number_format($company->nfe_documents_count) }}</div>
                        <div style="font-size:12px">
                            @if ($companyPendingCiencia > 0)
                                <span style="color:var(--warn)">{{ number_format($companyPendingCiencia) }} sem ciencia</span>
                            @else
                                <span style="color:var(--ok)">Tudo ok</span>
                            @endif
                        </div>
                        <div class="row-text" style="font-size:12px">{{ $company->nsuCursor?->last_query_at?->diffForHumans() ?? 'Nunca' }}</div>
                    </div>
                @endforeach
            @endif
        </div>

        {{-- Alerts --}}
        <div style="display:grid;gap:18px;align-content:start">

            {{-- Action items --}}
            <div class="panel">
                <div class="panel-header">
                    <div>
                        <h2>Itens de acao</h2>
                        <span>O que precisa de atencao agora.</span>
                    </div>
                </div>

                <div class="alert-row">
                    <div>
                        <strong>Ciencia pendente</strong>
                        <div class="row-text">{{ number_format($pendingCiencia) }} NF-{{ $pendingCiencia > 1 ? 'es' : 'e' }} sem ciencia da operacao</div>
                    </div>
                    <a class="button" href="{{ route('sync.index', ['has_ciencia' => 'false']) }}" style="min-height:28px;font-size:12px;padding:4px 10px">Manifestar</a>
                </div>

                <div class="alert-row">
                    <div>
                        <strong>XML pendente de download</strong>
                        <div class="row-text">{{ number_format($pendingXmlCount) }} NF-{{ $pendingXmlCount > 1 ? 'es' : 'e' }} com ciencia mas sem XML completo</div>
                    </div>
                    <a class="button" href="{{ route('xml-pendentes.index') }}" style="min-height:28px;font-size:12px;padding:4px 10px">Baixar</a>
                </div>

                <div class="alert-row">
                    <div>
                        <strong>Documentos de saida</strong>
                        <div class="row-text">{{ number_format($outgoingCount) }} NF-{{ $outgoingCount > 1 ? 'es' : 'e' }} emitidas para suas empresas</div>
                    </div>
                    <a class="button" href="{{ route('sync.index', ['direction' => 'outgoing']) }}" style="min-height:28px;font-size:12px;padding:4px 10px">Ver</a>
                </div>

                @if ($recentUploadsCount > 0)
                <div class="alert-row">
                    <div>
                        <strong>Uploads recentes (7 dias)</strong>
                        <div class="row-text">{{ number_format($recentUploadsCount) }} XML{{ $recentUploadsCount > 1 ? 's' : '' }} importados manualmente</div>
                    </div>
                    <span class="pill ok" style="min-width:0;padding:4px 8px;font-size:11px">{{ $recentUploadsCount }}</span>
                </div>
                @endif

                <div class="alert-row">
                    <div>
                        <strong>Armazenamento total</strong>
                        <div class="row-text">{{ $storageUsed }} em XMLs de entrada e saida</div>
                    </div>
                </div>
            </div>

            {{-- Expiring certificates --}}
            <div class="panel">
                <div class="panel-header">
                    <div>
                        <h2>Certificados vencendo</h2>
                        <span>Proximos 30 dias.</span>
                    </div>
                    @if ($expiringCerts->isNotEmpty())
                        <span class="pill warn" style="min-width:0;padding:4px 8px">{{ $expiringCerts->count() }}</span>
                    @endif
                </div>

                @forelse ($expiringCerts as $cert)