@extends('layouts.app')
@section('title','Cotizaciones Comparativas')
@section('page-title','Comparativo de Cotizaciones')
@section('breadcrumb')
    <li class="breadcrumb-item"><a href="{{ route('logistica.dashboard') }}">Logística</a></li>
    <li class="breadcrumb-item"><a href="{{ route('logistica.cotizaciones.index') }}">Cotizaciones</a></li>
    <li class="breadcrumb-item active">Comparativo</li>
@endsection

@section('content')

{{-- Selector de requerimiento --}}
<div class="card mb-3">
    <div class="card-header py-2"><h3 class="card-title"><i class="fas fa-balance-scale mr-1"></i>Seleccionar Requerimiento</h3></div>
    <div class="card-body">
        <form method="GET" class="row align-items-end">
            <div class="col-md-8 form-group mb-0">
                <label class="small fw-bold">Requerimiento con cotizaciones</label>
                <select name="requerimiento_id" class="form-control form-control-sm" onchange="this.form.submit()">
                    <option value="">— Seleccione —</option>
                    @foreach($requerimientos as $req)
                    <option value="{{ $req->id }}" @selected(request('requerimiento_id') == $req->id)>
                        {{ $req->numero }} — {{ $req->descripcion ?? 'Sin descripción' }}
                        ({{ $req->cotizaciones->count() }} cotizaciones)
                    </option>
                    @endforeach
                </select>
            </div>
            <div class="col-md-4">
                <button class="btn btn-success btn-sm btn-block"><i class="fas fa-balance-scale mr-1"></i>Ver Comparativo</button>
            </div>
        </form>
    </div>
</div>

@if($requerimiento)

{{-- Info del requerimiento --}}
<div class="alert alert-info py-2 mb-3">
    <strong>{{ $requerimiento->numero }}</strong> — {{ $requerimiento->descripcion ?? 'Sin descripción' }}
    &nbsp;|&nbsp; Estado: <strong>{{ strtoupper($requerimiento->estado) }}</strong>
    &nbsp;|&nbsp; {{ $cotizaciones->count() }} proveedor(es) cotizando
</div>

@if($cotizaciones->isEmpty())
<div class="alert alert-warning">No hay cotizaciones para este requerimiento.</div>
@else

{{-- Tabla comparativa --}}
<div class="card">
    <div class="card-header py-2">
        <h3 class="card-title"><i class="fas fa-table mr-1"></i>Cuadro Comparativo</h3>
    </div>
    <div class="card-body p-0" style="overflow-x:auto;">
        @php
            $menor = $cotizaciones->where('estado','!=','rechazada')->sortBy('total')->first();
        @endphp
        <table class="table table-bordered table-sm mb-0">
            <thead>
                <tr class="thead-dark">
                    <th style="min-width:200px">Descripción del ítem</th>
                    @foreach($cotizaciones as $cot)
                    <th class="text-center {{ $menor && $cot->id === $menor->id ? 'table-success' : '' }}"
                        style="min-width:140px;">
                        {{ $cot->proveedor->razon_social ?? '—' }}
                        <br><small class="font-weight-normal">{{ $cot->numero }}</small>
                        @if($cot->estado === 'aceptada')
                            <br><span class="badge badge-success">ACEPTADA</span>
                        @elseif($cot->estado === 'rechazada')
                            <br><span class="badge badge-danger">RECHAZADA</span>
                        @else
                            <br><span class="badge badge-warning">PENDIENTE</span>
                        @endif
                        @if($menor && $cot->id === $menor->id)
                            <br><span class="badge badge-primary mt-1"><i class="fas fa-trophy mr-1"></i>Más económico</span>
                        @endif
                    </th>
                    @endforeach
                </tr>
            </thead>
            <tbody>
                {{-- Items por descripción --}}
                @foreach($descripciones as $desc)
                <tr>
                    <td class="font-weight-bold small">{{ $desc }}</td>
                    @foreach($cotizaciones as $cot)
                    @php
                        $item = $cot->items->firstWhere('descripcion', $desc);
                        $precios = $cotizaciones->map(fn($c) => (float)($c->items->firstWhere('descripcion',$desc)?->precio_unitario ?? 0))->filter()->values();
                        $minPrecio = $precios->min();
                        $esMenor = $item && (float)$item->precio_unitario === $minPrecio && $minPrecio > 0;
                    @endphp
                    <td class="text-center {{ $esMenor ? 'table-success' : '' }}">
                        @if($item)
                            <div class="font-weight-bold {{ $esMenor ? 'text-success' : '' }}">
                                S/ {{ number_format($item->precio_unitario, 2) }}
                            </div>
                            <small class="text-muted">x{{ number_format($item->cantidad, 2) }} = S/ {{ number_format($item->subtotal, 2) }}</small>
                            @if($esMenor)<br><small class="text-success"><i class="fas fa-check-circle"></i> Mejor precio</small>@endif
                        @else
                            <span class="text-muted">—</span>
                        @endif
                    </td>
                    @endforeach
                </tr>
                @endforeach
            </tbody>
            <tfoot>
                <tr class="table-secondary">
                    <td class="font-weight-bold">Subtotal</td>
                    @foreach($cotizaciones as $cot)
                    <td class="text-center font-weight-bold {{ $menor && $cot->id === $menor->id ? 'text-success' : '' }}">
                        S/ {{ number_format($cot->subtotal, 2) }}
                    </td>
                    @endforeach
                </tr>
                <tr class="table-secondary">
                    <td class="font-weight-bold">IGV (18%)</td>
                    @foreach($cotizaciones as $cot)
                    <td class="text-center">S/ {{ number_format($cot->igv, 2) }}</td>
                    @endforeach
                </tr>
                <tr class="table-dark">
                    <td class="font-weight-bold">TOTAL</td>
                    @foreach($cotizaciones as $cot)
                    <td class="text-center font-weight-bold {{ $menor && $cot->id === $menor->id ? 'text-warning' : '' }}" style="font-size:15px;">
                        S/ {{ number_format($cot->total, 2) }}
                    </td>
                    @endforeach
                </tr>
                <tr>
                    <td class="font-weight-bold">Validez</td>
                    @foreach($cotizaciones as $cot)
                    <td class="text-center small">{{ $cot->validez_dias }} días</td>
                    @endforeach
                </tr>
                @if($cotizaciones->where('estado','pendiente')->isNotEmpty() && auth()->user()->hasAnyRole(['super-admin','gerente','jefe-logistica']))
                <tr>
                    <td><strong>Acción</strong></td>
                    @foreach($cotizaciones as $cot)
                    <td class="text-center">
                        @if($cot->estado === 'pendiente')
                        <form action="{{ route('logistica.cotizaciones.aceptar', $cot) }}" method="POST" class="d-inline">
                            @csrf
                            <button type="submit" class="btn btn-xs btn-success" onclick="return confirm('¿Aceptar esta cotización?')">
                                <i class="fas fa-check mr-1"></i>Aceptar
                            </button>
                        </form>
                        <a href="{{ route('logistica.cotizaciones.show', $cot) }}" class="btn btn-xs btn-info ml-1">
                            <i class="fas fa-eye"></i>
                        </a>
                        @elseif($cot->estado === 'aceptada')
                        <span class="badge badge-success p-1">Aceptada</span>
                        @else
                        <span class="badge badge-danger p-1">Rechazada</span>
                        @endif
                    </td>
                    @endforeach
                </tr>
                @endif
            </tfoot>
        </table>
    </div>
</div>

@endif
@endif
@endsection