@extends('layouts.admin')
@section('title', 'Create Item')
@section('subtitle', 'Add a new submission to the repository')

@section('content')
<div class="max-w-4xl">
    <div class="mb-6 flex items-center justify-between">
        <a href="{{ route('admin.items.index') }}" class="flex items-center gap-2 text-xs font-bold text-slate-400 hover:text-primary uppercase tracking-widest transition-colors">
            <span class="material-icons text-sm">arrow_back</span> Back to Items
        </a>
    </div>

    <form action="{{ route('admin.items.store') }}" method="POST" enctype="multipart/form-data" class="space-y-8">
        @csrf

        <!-- Status & Settings -->
        <div class="bg-white rounded-3xl shadow-sm border border-slate-100 p-8">
            <h3 class="text-xs font-black uppercase tracking-widest text-slate-400 mb-6">Publication & Placement Settings</h3>
            <div class="grid md:grid-cols-2 lg:grid-cols-4 gap-6">
                <div>
                    <label class="block text-[10px] font-black uppercase tracking-widest text-slate-400 mb-2">Status</label>
                    <select name="status" class="w-full border border-slate-200 rounded-xl px-4 py-3 text-sm focus:ring-2 focus:ring-primary focus:border-primary">
                        <option value="published" selected>Published</option>
                        <option value="draft">Draft</option>
                        <option value="withdrawn">Withdrawn</option>
                    </select>
                </div>
                <div>
                    <label class="block text-[10px] font-black uppercase tracking-widest text-slate-400 mb-2">Community / Faculty</label>
                    <select id="community_select" class="w-full border border-slate-200 rounded-xl px-4 py-3 text-sm focus:ring-2 focus:ring-primary focus:border-primary">
                        <option value="">-- Select Community --</option>
                        @foreach($communities as $comm)
                            <option value="{{ $comm->id }}">
                                {{ $comm->name }}
                            </option>
                        @endforeach
                    </select>
                </div>
                <div>
                    <label class="block text-[10px] font-black uppercase tracking-widest text-slate-400 mb-2">Collection / Programme <span class="text-red-500">*</span></label>
                    <select name="collection_id" id="collection_select" required class="w-full border border-slate-200 rounded-xl px-4 py-3 text-sm focus:ring-2 focus:ring-primary focus:border-primary">
                        <option value="">-- Select Collection --</option>
                        @foreach($collections as $col)
                            <option value="{{ $col->id }}" data-community-id="{{ $col->community_id }}">
                                {{ $col->name }}
                            </option>
                        @endforeach
                    </select>
                </div>
                <div>
                    <label class="block text-[10px] font-black uppercase tracking-widest text-slate-400 mb-2">Issue Date</label>
                    <input type="date" name="issued_at" value="{{ now()->format('Y-m-d') }}" class="w-full border border-slate-200 rounded-xl px-4 py-3 text-sm focus:ring-2 focus:ring-primary focus:border-primary">
                </div>
            </div>
        </div>

        <!-- Metadata Fields -->
        <div class="bg-white rounded-3xl shadow-sm border border-slate-100 p-8">
            <h3 class="text-xs font-black uppercase tracking-widest text-slate-400 mb-6">Dublin Core Metadata</h3>
            <div class="space-y-6">
                @foreach($fields as $field)
                    @php
                        $fieldName = 'dc.' . $field->element . ($field->qualifier !== 'none' ? '.' . $field->qualifier : '');
                        $defaultValue = old('metadata.'.$field->id);

                        if (empty($defaultValue)) {
                            if ($field->element === 'publisher') {
                                $defaultValue = 'Mountain Top University';
                            } elseif ($field->element === 'date') {
                                $defaultValue = now()->format('d/m/Y');
                            }
                        }
                    @endphp
                    <div>
                        <label class="block text-[10px] font-black uppercase tracking-widest text-slate-400 mb-2 flex items-center justify-between">
                            <span class="font-mono text-primary font-bold">
                                {{ $fieldName }}
                                @if($field->element === 'title') <span class="text-red-500 font-bold">*</span> @endif
                            </span>
                            @if($field->element === 'title')
                                <span class="text-[10px] text-slate-400 font-medium normal-case">(Max 255 characters)</span>
                            @elseif($field->element === 'date')
                                <span class="text-[10px] text-primary font-bold normal-case">Format: YYYY-MM-DD</span>
                            @endif
                        </label>

                        @if(in_array($field->element, ['description']))
                            <textarea name="metadata[{{ $field->id }}]" rows="4"
                                class="w-full border @error('metadata.'.$field->id) border-red-500 focus:ring-red-500 focus:border-red-500 @else border-slate-200 focus:ring-primary focus:border-primary @enderror rounded-xl px-4 py-3 text-sm resize-none"
                                placeholder="Enter abstract or description...">{{ $defaultValue }}</textarea>
                        @elseif($field->element === 'date')
                            <input type="date" name="metadata[{{ $field->id }}]" 
                                value="{{ old('metadata.'.$field->id, now()->format('Y-m-d')) }}"
                                placeholder="YYYY-MM-DD"
                                class="w-full border @error('metadata.'.$field->id) border-red-500 focus:ring-red-500 focus:border-red-500 @else border-slate-200 focus:ring-primary focus:border-primary @enderror rounded-xl px-4 py-3 text-sm font-mono">
                        @else
                            <input name="metadata[{{ $field->id }}]" value="{{ $defaultValue }}"
                                @if($field->element === 'title') maxlength="255" @endif
                                placeholder="{{ $field->scope_note ?: 'Enter ' . $fieldName }}"
                                class="w-full border @error('metadata.'.$field->id) border-red-500 focus:ring-red-500 focus:border-red-500 @else border-slate-200 focus:ring-primary focus:border-primary @enderror rounded-xl px-4 py-3 text-sm">
                        @endif

                        <p class="text-[10px] text-slate-400 mt-1 font-medium">{{ $field->scope_note }}</p>

                        @error('metadata.'.$field->id)
                            <p class="text-xs text-red-500 font-bold mt-1.5 flex items-center gap-1">
                                <span class="material-icons text-sm">error_outline</span> {{ $message }}
                            </p>
                        @enderror
                    </div>
                @endforeach
            </div>
        </div>

        <!-- File Upload (Bitstreams) -->
        <div class="bg-white rounded-3xl shadow-sm border border-slate-100 p-8">
            <h3 class="text-xs font-black uppercase tracking-widest text-slate-400 mb-6">Files (Bitstreams)</h3>
            <div class="space-y-4">
                <div>
                    <label class="block text-[10px] font-black uppercase tracking-widest text-slate-400 mb-2">Upload Files</label>
                    <input type="file" name="files[]" multiple class="w-full border border-slate-200 rounded-xl px-4 py-3 text-sm focus:ring-2 focus:ring-primary focus:border-primary">
                    <p class="text-[10px] text-slate-400 mt-1 font-medium">You can select multiple files to upload.</p>
                </div>
            </div>
        </div>

        <div class="flex items-center gap-4">
            <button type="submit" class="px-10 py-4 bg-primary text-white font-black rounded-2xl text-xs uppercase tracking-widest shadow-lg shadow-primary/30 hover:scale-[1.02] active:scale-[0.98] transition-all">
                Create Item
            </button>
            <a href="{{ route('admin.items.index') }}" class="px-8 py-4 bg-slate-100 text-slate-600 font-bold rounded-2xl text-xs uppercase tracking-widest hover:bg-slate-200 transition-all">
                Cancel
            </a>
        </div>
    </form>
</div>

<script>
document.addEventListener('DOMContentLoaded', function () {
    const communitySelect = document.getElementById('community_select');
    const collectionSelect = document.getElementById('collection_select');
    
    if (communitySelect && collectionSelect) {
        const allOptions = Array.from(collectionSelect.querySelectorAll('option[data-community-id]'));

        function filterCollections() {
            const selectedCommunityId = communitySelect.value;
            const currentSelectedValue = collectionSelect.value;

            // Clear options except placeholder
            collectionSelect.innerHTML = '<option value="">-- Select Collection --</option>';

            let matchFound = false;
            allOptions.forEach(opt => {
                if (!selectedCommunityId || opt.dataset.communityId === selectedCommunityId) {
                    const clonedOpt = opt.cloneNode(true);
                    if (clonedOpt.value === currentSelectedValue) {
                        clonedOpt.selected = true;
                        matchFound = true;
                    }
                    collectionSelect.appendChild(clonedOpt);
                }
            });
        }

        communitySelect.addEventListener('change', function () {
            const previouslySelected = collectionSelect.value;
            filterCollections();
            if (!Array.from(collectionSelect.options).some(o => o.value === previouslySelected)) {
                collectionSelect.value = '';
            }
        });

        collectionSelect.addEventListener('change', function () {
            const selectedOption = collectionSelect.options[collectionSelect.selectedIndex];
            if (selectedOption && selectedOption.dataset.communityId) {
                communitySelect.value = selectedOption.dataset.communityId;
            }
        });

        if (communitySelect.value) {
            filterCollections();
        }
    }
});
</script>
@endsection