@extends('layouts.app')
@section('title', 'Request ' . $pr->request_number)
@section('styles')
<style>
@media print {
    .no-print { display: none !important; }
    body { background: #fff !important; }
    .print-only { display: block !important; }
    .main-content { margin: 0 !important; padding: 0 !important; }
}
.print-only { display: none; }
</style>
@endsection
@section('content')
@php
    $user    = Auth::user();
    $isAdmin = $user->hasAnyRole('Super Admin','Hospital Admin');
    $canEdit = $isAdmin && in_array($pr->status, ['pending','approved']);
    $isPending = $pr->status === 'pending';
    $isApproved = $pr->status === 'approved';
    $isDraft = $pr->status === 'draft';
    $isOwner = $pr->requested_by === $user->id;
@endphp

{{-- Print header (only visible when printing) --}}
<div class="print-only mb-6">
    <div style="border-bottom:2px solid #c026d3;padding-bottom:12px;margin-bottom:16px">
        <h1 style="font-size:20px;font-weight:700;color:#5c1269">DRUG PROCUREMENT REQUEST</h1>
        <p style="font-size:12px;color:#6b7280">Clara Rosa HMIS &nbsp;|&nbsp; Generated: {{ now()->format('d M Y, H:i') }}</p>
    </div>
    <table style="width:100%;font-size:12px;margin-bottom:16px">
        <tr>
            <td><strong>Request No:</strong> {{ $pr->request_number }}</td>
            <td><strong>Date:</strong> {{ $pr->created_at->format('d M Y') }}</td>
            <td><strong>Priority:</strong> {{ strtoupper($pr->urgency) }}</td>
        </tr>
        <tr>
            <td><strong>Requested By:</strong> {{ $pr->requester->name ?? '—' }}</td>
            <td><strong>Designation:</strong> {{ $pr->requester->designation ?? '—' }}</td>
            <td><strong>Status:</strong> {{ $pr->status_label }}</td>
        </tr>
        @if($pr->reviewer)
        <tr>
            <td><strong>Approved By:</strong> {{ $pr->reviewer->name }}</td>
            <td><strong>Date:</strong> {{ $pr->reviewed_at?->format('d M Y') }}</td>
            <td></td>
        </tr>
        @endif
    </table>
    @if($pr->notes)<p style="font-size:12px;margin-bottom:12px"><strong>Notes:</strong> {{ $pr->notes }}</p>@endif
</div>

<div class="no-print flex items-center gap-3 mb-5">
    <a href="{{ route('procurement.requests.index') }}" class="text-gray-400 hover:text-gray-600">
        <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 19l-7-7 7-7"/></svg>
    </a>
    <div class="flex-1">
        <div class="flex items-center gap-2">
            <h1 class="text-lg font-bold text-gray-900">{{ $pr->request_number }}</h1>
            <span class="badge {{ $pr->status_color }}">{{ $pr->status_label }}</span>
            @if($pr->urgency === 'urgent')<span class="badge badge-danger">Urgent</span>@endif
        </div>
        <p class="text-xs text-gray-400">Submitted by {{ $pr->requester->name ?? '—' }} on {{ $pr->created_at->format('d M Y, H:i') }}</p>
    </div>
    <div class="flex gap-2 flex-wrap justify-end">
        @if($isApproved || ($pr->status === 'ordered'))
        <button onclick="window.print()" class="btn-secondary text-xs flex items-center gap-1.5 no-print">
            <svg class="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M17 17h2a2 2 0 002-2v-4a2 2 0 00-2-2H5a2 2 0 00-2 2v4a2 2 0 002 2h2m2 4h6a2 2 0 002-2v-4a2 2 0 00-2-2H9a2 2 0 00-2 2v4a2 2 0 002 2zm8-12V5a2 2 0 00-2-2H9a2 2 0 00-2 2v4h10z"/></svg>
            Print / Download
        </button>
        @endif
        @if($isDraft && $isOwner)
        <form method="POST" action="{{ route('procurement.requests.submit', $pr) }}">@csrf
            <button type="submit" class="btn-primary text-xs" onclick="return confirm('Submit this request for admin approval?')">
                Submit for Approval
            </button>
        </form>
        @endif
        @if($isAdmin && $isApproved)
        <form method="POST" action="{{ route('procurement.requests.ordered', $pr) }}">@csrf
            <button type="submit" class="btn-success text-xs" onclick="return confirm('Mark as ordered? This confirms the purchase order has been placed with the supplier.')">
                ✓ Mark as Ordered
            </button>
        </form>
        @endif
        @if($isAdmin)
        {{-- Admin "full rights": delete request entirely. Cascades to
             items and notifies the requester so nothing vanishes silently. --}}
        <form method="POST" action="{{ route('procurement.requests.destroy', $pr) }}" class="no-print">
            @csrf @method('DELETE')
            <button type="submit" class="btn-secondary text-xs text-red-600 hover:bg-red-50" onclick="return confirm('Delete this entire procurement request? This cannot be undone. The requester will be notified.')">
                Delete Request
            </button>
        </form>
        @endif
    </div>
</div>

<div class="grid grid-cols-1 lg:grid-cols-3 gap-4">
    {{-- Main: items table --}}
    <div class="lg:col-span-2 space-y-4">
        <div class="bg-white rounded-xl border shadow-sm overflow-hidden">
            <div class="flex items-center justify-between px-4 py-3 border-b bg-gray-50/50">
                <h3 class="font-bold text-gray-800 text-sm">Drug Items ({{ $pr->activeItems->count() }})</h3>
                @if($canEdit)
                <button onclick="document.getElementById('addItemModal').classList.remove('hidden')" class="btn-success text-xs no-print">+ Add Drug</button>
                @endif
            </div>
            <div class="overflow-x-auto">
                <table class="w-full">
                    <thead><tr class="bg-gray-50">
                        <th class="table-header">Drug</th>
                        <th class="table-header text-center">Stock Now</th>
                        <th class="table-header text-center">Reorder Level</th>
                        <th class="table-header text-center">Qty Requested</th>
                        @if($isAdmin || $isApproved || $pr->status === 'ordered')
                        <th class="table-header text-center">Qty Approved</th>
                        @endif
                        <th class="table-header">Note</th>
                        @if($canEdit)<th class="table-header no-print"></th>@endif
                    </tr></thead>
                    <tbody>
                    @forelse($pr->activeItems as $item)
                    <tr class="border-b border-gray-50">
                        <td class="table-cell">
                            <p class="font-semibold text-gray-800">{{ $item->drug->name ?? '—' }}</p>
                        </td>
                        <td class="table-cell text-center">
                            <span class="{{ $item->current_stock <= 0 ? 'text-red-600 font-bold' : ($item->current_stock <= $item->reorder_level ? 'text-amber-600 font-semibold' : 'text-gray-700') }}">
                                {{ $item->current_stock }}
                            </span>
                        </td>
                        <td class="table-cell text-center text-gray-500">{{ $item->reorder_level }}</td>
                        <td class="table-cell text-center font-bold">{{ $item->quantity_requested }}</td>
                        @if($isAdmin || $isApproved || $pr->status === 'ordered')
                        <td class="table-cell text-center">
                            @if($canEdit && $isPending)
                            <input type="number" class="w-20 form-input text-center text-xs py-1 approved-qty-input font-bold"
                                name="approved_qty_{{ $item->id }}"
                                value="{{ $item->quantity_approved ?? $item->quantity_requested }}"
                                min="1"
                                data-item-id="{{ $item->id }}">
                            @else
                            <span class="font-bold {{ $item->quantity_approved ? 'text-green-700' : 'text-gray-400' }}">
                                {{ $item->quantity_approved ?? '—' }}
                            </span>
                            @endif
                        </td>
                        @endif
                        <td class="table-cell text-xs text-gray-400">{{ $item->item_notes ?: '—' }}</td>
                        @if($canEdit)
                        <td class="table-cell no-print">
                            <form method="POST" action="{{ route('procurement.items.remove', $item) }}">@csrf @method('DELETE')
                                <button type="submit" class="text-red-400 hover:text-red-600 text-xs" onclick="return confirm('Remove this item?')">Remove</button>
                            </form>
                        </td>
                        @endif
                    </tr>
                    @empty
                    <tr><td colspan="7" class="table-cell text-center text-gray-400 py-8">No active items.</td></tr>
                    @endforelse
                    </tbody>
                </table>
            </div>
        </div>

        {{-- Admin approval form --}}
        @if($isAdmin && $isPending)
        <div class="bg-white rounded-xl border shadow-sm p-5 no-print">
            <h3 class="font-bold text-gray-800 text-sm mb-4">Admin Review</h3>
            <form method="POST" action="{{ route('procurement.requests.review', $pr) }}" id="reviewForm">
                @csrf
                {{-- Collect approved qtys --}}
                @foreach($pr->activeItems as $item)
                <input type="hidden" name="approved_qty[{{ $item->id }}]" id="hiddenQty_{{ $item->id }}" value="{{ $item->quantity_approved ?? $item->quantity_requested }}">
                @endforeach
                <div class="mb-3">
                    <label class="form-label">Review Notes <span class="text-gray-400">(visible to requester)</span></label>
                    <textarea name="review_notes" class="form-input" rows="2" placeholder="Optional — reason for rejection or any adjustments made…"></textarea>
                </div>
                <div class="flex gap-2">
                    <button type="submit" name="action" value="approve" onclick="syncApprovedQtys()" class="btn-success text-xs px-5">
                        ✓ Approve Request
                    </button>
                    <button type="submit" name="action" value="reject" class="btn-secondary text-xs px-5 border-red-200 text-red-600 hover:bg-red-50">
                        ✗ Reject
                    </button>
                </div>
            </form>
        </div>
        @endif

        {{-- Print: Signature block --}}
        <div class="print-only mt-8" style="page-break-inside:avoid">
            <table style="width:100%;font-size:12px;border-top:1px solid #e5e7eb;padding-top:16px;margin-top:16px">
                <tr>
                    <td style="width:33%;padding-top:40px;border-top:1px solid #333;text-align:center">
                        <p><strong>Requested By</strong></p>
                        <p>{{ $pr->requester->name ?? '—' }}</p>
                        <p>{{ $pr->requester->designation ?? '' }}</p>
                    </td>
                    <td style="width:33%;padding-top:40px;border-top:1px solid #333;text-align:center">
                        <p><strong>Approved By</strong></p>
                        <p>{{ $pr->reviewer->name ?? '—' }}</p>
                        <p>{{ $pr->reviewer->designation ?? '' }}</p>
                    </td>
                    <td style="width:33%;padding-top:40px;border-top:1px solid #333;text-align:center">
                        <p><strong>Received By</strong></p>
                        <p>Name: ________________________</p>
                        <p>Designation: ___________________</p>
                        <p>Date: _________________________</p>
                    </td>
                </tr>
            </table>
        </div>
    </div>

    {{-- Right: sidebar --}}
    <div class="space-y-4 no-print">
        {{-- Status timeline --}}
        <div class="bg-white rounded-xl border shadow-sm p-4">
            <h3 class="font-bold text-gray-800 text-sm mb-4">Request Timeline</h3>
            <div class="space-y-3">
                @php
                $steps = [
                    ['status'=>'draft','label'=>'Draft Created','icon'=>'📝'],
                    ['status'=>'pending','label'=>'Submitted for Approval','icon'=>'📤'],
                    ['status'=>'approved','label'=>'Approved by Admin','icon'=>'✅'],
                    ['status'=>'ordered','label'=>'Order Placed','icon'=>'🛒'],
                ];
                $statusOrder = ['draft'=>0,'pending'=>1,'approved'=>2,'ordered'=>3,'rejected'=>2];
                $currentOrder = $statusOrder[$pr->status] ?? 0;
                @endphp
                @foreach($steps as $s)
                @php $stepOrder = $statusOrder[$s['status']] ?? 0; $done = $currentOrder >= $stepOrder; @endphp
                <div class="flex items-center gap-3">
                    <div class="w-7 h-7 rounded-full flex items-center justify-center text-sm flex-shrink-0 {{ $done ? 'bg-green-100' : 'bg-gray-100' }}">
                        {{ $s['icon'] }}
                    </div>
                    <div>
                        <p class="text-xs font-semibold {{ $done ? 'text-gray-800' : 'text-gray-400' }}">{{ $s['label'] }}</p>
                        @if($s['status'] === 'pending' && $pr->created_at)
                            @if($pr->status !== 'draft')<p class="text-xs text-gray-400">{{ $pr->created_at->format('d M Y, H:i') }}</p>@endif
                        @endif
                        @if($s['status'] === 'approved' && $pr->reviewed_at && $isApproved)
                            <p class="text-xs text-gray-400">{{ $pr->reviewed_at->format('d M Y, H:i') }}</p>
                        @endif
                    </div>
                </div>
                @endforeach
                @if($pr->status === 'rejected')
                <div class="flex items-center gap-3">
                    <div class="w-7 h-7 rounded-full flex items-center justify-center text-sm flex-shrink-0 bg-red-100">❌</div>
                    <div>
                        <p class="text-xs font-semibold text-red-700">Rejected</p>
                        @if($pr->reviewed_at)<p class="text-xs text-gray-400">{{ $pr->reviewed_at->format('d M Y, H:i') }}</p>@endif
                    </div>
                </div>
                @endif
            </div>
        </div>

        {{-- Details card --}}
        <div class="bg-white rounded-xl border shadow-sm p-4 text-xs space-y-2">
            <p class="font-bold text-gray-800 text-sm">Details</p>
            <div class="flex justify-between"><span class="text-gray-500">Requested by</span><span class="font-semibold">{{ $pr->requester->name ?? '—' }}</span></div>
            <div class="flex justify-between"><span class="text-gray-500">Designation</span><span>{{ $pr->requester->designation ?? '—' }}</span></div>
            <div class="flex justify-between"><span class="text-gray-500">Priority</span><span class="badge {{ $pr->urgency==='urgent'?'badge-danger':'badge-gray' }}">{{ ucfirst($pr->urgency) }}</span></div>
            @if($pr->reviewer)
            <div class="flex justify-between"><span class="text-gray-500">Reviewed by</span><span class="font-semibold">{{ $pr->reviewer->name }}</span></div>
            @endif
            @if($pr->review_notes)
            <div class="pt-2 border-t">
                <p class="text-gray-500 mb-1">Review Notes:</p>
                <p class="text-gray-700 bg-gray-50 rounded p-2">{{ $pr->review_notes }}</p>
            </div>
            @endif
            @if($pr->notes)
            <div class="pt-2 border-t">
                <p class="text-gray-500 mb-1">Request Notes:</p>
                <p class="text-gray-700 bg-gray-50 rounded p-2">{{ $pr->notes }}</p>
            </div>
            @endif
        </div>
    </div>
</div>

{{-- Add Item Modal (admin only) --}}
@if($canEdit)
<div id="addItemModal" class="hidden fixed inset-0 z-50 flex items-center justify-center bg-black/40">
    <div class="bg-white rounded-xl shadow-xl w-full max-w-md mx-4 p-5">
        <div class="flex items-center justify-between mb-4">
            <h3 class="font-bold text-gray-900">Add Drug to Request</h3>
            <button onclick="document.getElementById('addItemModal').classList.add('hidden')" class="text-gray-400 hover:text-gray-600 text-xl">&times;</button>
        </div>
        <form method="POST" action="{{ route('procurement.items.add', $pr) }}">@csrf
            <div class="space-y-3">
                <div>
                    <label class="form-label">Drug *</label>
                    <select name="drug_item_id" required class="form-input">
                        <option value="">Select drug…</option>
                        @foreach($drugs as $d)
                        <option value="{{ $d->id }}">{{ $d->name }} — Stock: {{ $d->current_stock }}</option>
                        @endforeach
                    </select>
                </div>
                <div>
                    <label class="form-label">Quantity *</label>
                    <input type="number" name="quantity_requested" required min="1" class="form-input" placeholder="e.g. 100">
                </div>
                <div>
                    <label class="form-label">Note</label>
                    <input type="text" name="item_notes" class="form-input" placeholder="Optional note…">
                </div>
            </div>
            <div class="flex justify-end gap-2 mt-4">
                <button type="button" onclick="document.getElementById('addItemModal').classList.add('hidden')" class="btn-secondary text-xs">Cancel</button>
                <button type="submit" class="btn-primary text-xs">Add Drug</button>
            </div>
        </form>
    </div>
</div>
@endif

@endsection
@section('scripts')
<script>
// Sync qty inputs into hidden fields before form submit
function syncApprovedQtys() {
    document.querySelectorAll('.approved-qty-input').forEach(input => {
        const itemId = input.dataset.itemId;
        const hidden = document.getElementById('hiddenQty_' + itemId);
        if (hidden) hidden.value = input.value;
    });
}
</script>
@endsection