@extends('layouts.admin')

@section('page-title', 'Edit Campaign')

@section('content')
<div class="py-6">
    <div class="max-w-6xl mx-auto px-4 sm:px-6 lg:px-8">
        {{-- Breadcrumb + Header --}}
        <div class="flex items-center justify-between mb-8">
            <div class="flex items-center gap-3">
                <a href="{{ route('admin.campaigns.index') }}" class="inline-flex items-center justify-center w-10 h-10 bg-white border border-gray-200 rounded-xl hover:bg-gray-50 transition-all shadow-sm">
                    <svg class="w-5 h-5 text-gray-600" 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>
                    <h2 class="text-2xl font-bold text-gray-900 tracking-tight">Edit Campaign</h2>
                    <p class="text-sm text-gray-500 mt-0.5">Modify campaign details and settings</p>
                </div>
            </div>
            <a href="{{ route('admin.campaigns.index') }}" class="px-4 py-2 text-sm text-gray-600 bg-white border border-gray-200 rounded-lg hover:bg-gray-50 transition-colors font-medium shadow-sm">
                View All
            </a>
        </div>

        <form action="{{ route('admin.campaigns.update', $campaign) }}" method="POST" enctype="multipart/form-data" id="campaign-form">
            @csrf @method('PUT')
            <div class="grid grid-cols-1 lg:grid-cols-3 gap-6">
                {{-- Left: Main Form --}}
                <div class="lg:col-span-2 space-y-6">
                    {{-- Basic Info Card --}}
                    <div class="bg-white rounded-xl border border-gray-200 shadow-sm overflow-hidden">
                        <div class="px-6 py-4 border-b border-gray-100 bg-gradient-to-r from-indigo-50/50 to-white">
                            <div class="flex items-center gap-3">
                                <div class="w-9 h-9 bg-indigo-100 rounded-lg flex items-center justify-center">
                                    <svg class="w-5 h-5 text-indigo-600" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M11.593 8.25a60.858 60.858 0 00-2.532.342M12 16.5V9.75m0 0a60.858 60.858 0 00-2.532-.342m12.866-6.198a.75.75 0 00-1.055.052L4.962 17.77a.75.75 0 00.052 1.055l1.434 1.094a.75.75 0 001.055-.052l14.307-16.56a.75.75 0 00-.052-1.056l-1.434-1.094z"/></svg>
                                </div>
                                <div>
                                    <h3 class="text-base font-semibold text-gray-900">Basic Information</h3>
                                    <p class="text-xs text-gray-500">Campaign details and configuration</p>
                                </div>
                            </div>
                        </div>

                        <div class="p-6 space-y-5">
                            <div>
                                <label class="block text-sm font-semibold text-gray-700 mb-2">
                                    Campaign Name <span class="text-red-500">*</span>
                                </label>
                                <input type="text" name="name" required value="{{ old('name', $campaign->name) }}" id="campaign-name"
                                    class="w-full px-4 py-3 border border-gray-200 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-indigo-500/20 focus:border-indigo-500 transition-all">
                                @error('name') <p class="text-xs text-red-500 mt-1">{{ $message }}</p> @enderror
                            </div>

                            <div>
                                <label class="block text-sm font-semibold text-gray-700 mb-2">Description</label>
                                <textarea name="description" rows="4" id="description"
                                    class="w-full px-4 py-3 border border-gray-200 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-indigo-500/20 focus:border-indigo-500 transition-all resize-none"
                                    placeholder="Describe your campaign goals...">{{ old('description', $campaign->description) }}</textarea>
                                <div class="flex justify-between mt-1.5">
                                    <p class="text-xs text-gray-400">Optional but recommended</p>
                                    <span id="desc-count" class="text-xs text-gray-400">{{ strlen($campaign->description ?? '') }} chars</span>
                                </div>
                            </div>

                            <div class="grid grid-cols-2 gap-5">
                                <div>
                                    <label class="block text-sm font-semibold text-gray-700 mb-2">
                                        Campaign Type <span class="text-red-500">*</span>
                                    </label>
                                    <select name="type" required
                                        class="w-full px-4 py-3 border border-gray-200 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-indigo-500/20 focus:border-indigo-500 transition-all bg-white">
                                        <option value="">Select type...</option>
                                        @foreach(['all' => 'All Products', 'category' => 'Category Based', 'vendor' => 'Vendor Based', 'product' => 'Specific Products'] as $key => $label)
                                            <option value="{{ $key }}" {{ old('type', $campaign->type) === $key ? 'selected' : '' }}>{{ $label }}</option>
                                        @endforeach
                                    </select>
                                </div>
                                <div>
                                    <label class="block text-sm font-semibold text-gray-700 mb-2">
                                        Status <span class="text-red-500">*</span>
                                    </label>
                                    <select name="status" required
                                        class="w-full px-4 py-3 border border-gray-200 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-indigo-500/20 focus:border-indigo-500 transition-all bg-white">
                                        @foreach(['draft', 'active', 'paused', 'completed'] as $status)
                                            <option value="{{ $status }}" {{ old('status', $campaign->status) === $status ? 'selected' : '' }}>{{ ucfirst($status) }}</option>
                                        @endforeach
                                    </select>
                                </div>
                            </div>
                        </div>
                    </div>

                    {{-- Schedule Card --}}
                    <div class="bg-white rounded-xl border border-gray-200 shadow-sm overflow-hidden">
                        <div class="px-6 py-4 border-b border-gray-100 bg-gradient-to-r from-emerald-50/50 to-white">
                            <div class="flex items-center gap-3">
                                <div class="w-9 h-9 bg-emerald-100 rounded-lg flex items-center justify-center">
                                    <svg class="w-5 h-5 text-emerald-600" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M6.75 3v2.25M17.25 3v2.25M3 18.75V7.5a2.25 2.25 0 012.25-2.25h13.5A2.25 2.25 0 0121 7.5v11.25m-18 0A2.25 2.25 0 005.25 21h13.5A2.25 2.25 0 0021 18.75m-18 0v-7.5A2.25 2.25 0 015.25 9h13.5A2.25 2.25 0 0121 11.25v7.5"/></svg>
                                </div>
                                <div>
                                    <h3 class="text-base font-semibold text-gray-900">Schedule</h3>
                                    <p class="text-xs text-gray-500">Campaign duration dates</p>
                                </div>
                            </div>
                        </div>

                        <div class="p-6">
                            <div class="grid grid-cols-2 gap-5">
                                <div>
                                    <label class="block text-sm font-semibold text-gray-700 mb-2">
                                        Start Date <span class="text-red-500">*</span>
                                    </label>
                                    <input type="datetime-local" name="start_date" required value="{{ old('start_date', $campaign->start_date?->format('Y-m-d\TH:i')) }}"
                                        class="w-full px-4 py-3 border border-gray-200 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-indigo-500/20 focus:border-indigo-500 transition-all">
                                </div>
                                <div>
                                    <label class="block text-sm font-semibold text-gray-700 mb-2">
                                        End Date <span class="text-red-500">*</span>
                                    </label>
                                    <input type="datetime-local" name="end_date" required value="{{ old('end_date', $campaign->end_date?->format('Y-m-d\TH:i')) }}"
                                        class="w-full px-4 py-3 border border-gray-200 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-indigo-500/20 focus:border-indigo-500 transition-all">
                                </div>
                            </div>
                        </div>
                    </div>
                </div>

                {{-- Right: Sidebar --}}
                <div class="space-y-6">
                    {{-- Banner Upload --}}
                    <div class="bg-white rounded-xl border border-gray-200 shadow-sm overflow-hidden">
                        <div class="px-6 py-4 border-b border-gray-100 bg-gradient-to-r from-amber-50/50 to-white">
                            <div class="flex items-center gap-3">
                                <div class="w-9 h-9 bg-amber-100 rounded-lg flex items-center justify-center">
                                    <svg class="w-5 h-5 text-amber-600" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M2.25 15.75l5.159-5.159a2.25 2.25 0 013.182 0l5.159 5.159m-1.5-1.5l1.409-1.409a2.25 2.25 0 013.182 0l2.909 2.909m-18 3.75h16.5a1.5 1.5 0 001.5-1.5V6a1.5 1.5 0 00-1.5-1.5H3.75A1.5 1.5 0 002.25 6v12a1.5 1.5 0 001.5 1.5zm10.5-11.25h.008v.008h-.008V8.25zm.375 0a.375.375 0 11-.75 0 .375.375 0 01.75 0z"/></svg>
                                </div>
                                <div>
                                    <h3 class="text-base font-semibold text-gray-900">Banner</h3>
                                    <p class="text-xs text-gray-500">Campaign cover image</p>
                                </div>
                            </div>
                        </div>

                        <div class="p-6">
                            <div id="upload-area"
                                class="relative border-2 border-dashed border-gray-200 rounded-xl p-6 text-center hover:border-indigo-300 hover:bg-indigo-50/30 transition-all cursor-pointer group">
                                <input type="file" name="image" accept="image/*" id="banner-input" class="absolute inset-0 w-full h-full opacity-0 cursor-pointer z-10">
                                <div id="upload-placeholder" class="{{ $campaign->image ? 'hidden' : '' }}">
                                    <div class="w-14 h-14 mx-auto bg-indigo-50 rounded-xl flex items-center justify-center mb-3 group-hover:bg-indigo-100 transition-colors">
                                        <svg class="w-7 h-7 text-indigo-400 group-hover:text-indigo-500 transition-colors" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M3 16.5v2.25A2.25 2.25 0 005.25 21h13.5A2.25 2.25 0 0021 18.75V16.5m-13.5-9L12 3m0 0l4.5 4.5M12 3v13.5"/></svg>
                                    </div>
                                    <p class="text-sm font-medium text-gray-700">Change banner</p>
                                    <p class="text-xs text-gray-400 mt-1">PNG, JPG up to 2MB</p>
                                </div>
                                <div id="preview-container" class="{{ $campaign->image ? '' : 'hidden' }}">
                                    <img id="preview-image" class="mx-auto rounded-lg shadow-sm max-h-32 object-cover" src="{{ $campaign->imageUrl() }}" alt="Preview">
                                    <button type="button" id="remove-btn" class="mt-3 text-xs text-red-500 hover:text-red-600 font-medium flex items-center justify-center gap-1 mx-auto">
                                        <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="M6 18L18 6M6 6l12 12"/></svg>
                                        Remove
                                    </button>
                                </div>
                            </div>
                            <p class="text-xs text-gray-400 text-center mt-2">Recommended: 800 x 200px</p>
                        </div>
                    </div>

                    {{-- Settings --}}
                    <div class="bg-white rounded-xl border border-gray-200 shadow-sm overflow-hidden">
                        <div class="px-6 py-4 border-b border-gray-100 bg-gradient-to-r from-purple-50/50 to-white">
                            <div class="flex items-center gap-3">
                                <div class="w-9 h-9 bg-purple-100 rounded-lg flex items-center justify-center">
                                    <svg class="w-5 h-5 text-purple-600" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M9.594 3.94c.09-.542.56-.94 1.11-.94h2.593c.55 0 1.02.398 1.11.94l.213 1.281c.063.374.313.686.645.87.074.04.147.083.22.127.324.196.72.257 1.075.124l1.217-.456a1.125 1.125 0 011.37.49l1.296 2.247a1.125 1.125 0 01-.26 1.431l-1.003.827c-.293.24-.438.613-.431.992a6.759 6.759 0 010 .255c-.007.378.138.75.43.99l1.005.828c.424.35.534.954.26 1.43l-1.298 2.247a1.125 1.125 0 01-1.369.491l-1.217-.456c-.355-.133-.75-.072-1.076.124a6.57 6.57 0 01-.22.128c-.331.183-.581.495-.644.869l-.213 1.28c-.09.543-.56.941-1.11.941h-2.594c-.55 0-1.02-.398-1.11-.94l-.213-1.281c-.062-.374-.312-.686-.644-.87a6.52 6.52 0 01-.22-.127c-.325-.196-.72-.257-1.076-.124l-1.217.456a1.125 1.125 0 01-1.369-.49l-1.297-2.247a1.125 1.125 0 01.26-1.431l1.004-.827c.292-.24.437-.613.43-.992a6.932 6.932 0 010-.255c.007-.378-.138-.75-.43-.99l-1.004-.828a1.125 1.125 0 01-.26-1.43l1.297-2.247a1.125 1.125 0 011.37-.491l1.216.456c.356.133.751.072 1.076-.124.072-.044.146-.087.22-.128.332-.183.582-.495.644-.869l.214-1.281z"/><path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z"/></svg>
                                </div>
                                <div>
                                    <h3 class="text-base font-semibold text-gray-900">Settings</h3>
                                    <p class="text-xs text-gray-500">Campaign visibility options</p>
                                </div>
                            </div>
                        </div>

                        <div class="p-5 space-y-4">
                            <div class="flex items-center justify-between p-3 bg-gray-50 rounded-lg">
                                <div class="flex items-center gap-3">
                                    <div class="w-8 h-8 bg-yellow-100 rounded-lg flex items-center justify-center">
                                        <svg class="w-4 h-4 text-yellow-600" fill="currentColor" viewBox="0 0 24 24"><path d="M11.48 3.499a.562.562 0 011.04 0l2.125 5.111a.563.563 0 00.475.345l5.518.442c.499.04.701.663.321.988l-4.204 3.602a.563.563 0 00-.182.557l1.285 5.385a.562.562 0 01-.84.61l-4.725-2.885a.563.563 0 00-.586 0L6.982 20.54a.562.562 0 01-.84-.61l1.285-5.386a.562.562 0 00-.182-.557l-4.204-3.602a.563.563 0 01.321-.988l5.518-.442a.563.563 0 00.475-.345L11.48 3.5z"/></svg>
                                    </div>
                                    <div>
                                        <p class="text-sm font-medium text-gray-900">Featured</p>
                                        <p class="text-xs text-gray-400">Show on homepage</p>
                                    </div>
                                </div>
                                <label class="relative inline-flex items-center cursor-pointer">
                                    <input type="checkbox" name="is_featured" value="1" {{ old('is_featured', $campaign->is_featured) ? 'checked' : '' }} class="sr-only peer">
                                    <div class="w-9 h-5 bg-gray-200 peer-focus:outline-none rounded-full peer peer-checked:after:translate-x-full after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-white after:border-gray-300 after:border after:rounded-full after:h-4 after:w-4 after:transition-all peer-checked:bg-indigo-600"></div>
                                </label>
                            </div>

                            <div class="flex items-center justify-between p-3 bg-gray-50 rounded-lg">
                                <div class="flex items-center gap-3">
                                    <div class="w-8 h-8 bg-red-100 rounded-lg flex items-center justify-center">
                                        <svg class="w-4 h-4 text-red-600" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M3.75 13.5l10.5-11.25L12 10.5h8.25L9.75 21.75 12 13.5H3.75z"/></svg>
                                    </div>
                                    <div>
                                        <p class="text-sm font-medium text-gray-900">Flash Sale</p>
                                        <p class="text-xs text-gray-400">Enable flash sale badge</p>
                                    </div>
                                </div>
                                <label class="relative inline-flex items-center cursor-pointer">
                                    <input type="checkbox" name="is_flash_sale" value="1" {{ old('is_flash_sale', $campaign->is_flash_sale) ? 'checked' : '' }} class="sr-only peer">
                                    <div class="w-9 h-5 bg-gray-200 peer-focus:outline-none rounded-full peer peer-checked:after:translate-x-full after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-white after:border-gray-300 after:border after:rounded-full after:h-4 after:w-4 after:transition-all peer-checked:bg-indigo-600"></div>
                                </label>
                            </div>
                        </div>
                    </div>

                    {{-- Action Buttons --}}
                    <div class="space-y-3">
                        <button type="submit" class="w-full inline-flex items-center justify-center gap-2 px-5 py-3 bg-indigo-600 text-white rounded-xl hover:bg-indigo-700 transition-all text-sm font-semibold shadow-lg shadow-indigo-200">
                            <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12.75L11.25 15 15 9.75M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
                            Update Campaign
                        </button>
                        <a href="{{ route('admin.campaigns.index') }}" class="w-full inline-flex items-center justify-center gap-2 px-5 py-3 bg-white border border-gray-200 text-gray-700 rounded-xl hover:bg-gray-50 transition-all text-sm font-medium">
                            Cancel
                        </a>
                    </div>
                </div>
            </div>
        </form>
    </div>
</div>

@push('scripts')
<script>
document.addEventListener('DOMContentLoaded', function() {
    const bannerInput = document.getElementById('banner-input');
    const previewContainer = document.getElementById('preview-container');
    const previewImage = document.getElementById('preview-image');
    const uploadPlaceholder = document.getElementById('upload-placeholder');
    const removeBtn = document.getElementById('remove-btn');
    const descInput = document.getElementById('description');
    const descCount = document.getElementById('desc-count');

    bannerInput.addEventListener('change', function(e) {
        const file = e.target.files[0];
        if (file) {
            const reader = new FileReader();
            reader.onload = function(e) {
                previewImage.src = e.target.result;
                previewContainer.classList.remove('hidden');
                uploadPlaceholder.classList.add('hidden');
            };
            reader.readAsDataURL(file);
        }
    });

    removeBtn.addEventListener('click', function(e) {
        e.preventDefault();
        e.stopPropagation();
        bannerInput.value = '';
        previewImage.src = '';
        previewContainer.classList.add('hidden');
        uploadPlaceholder.classList.remove('hidden');
    });

    if (descInput) {
        descInput.addEventListener('input', function() {
            descCount.textContent = this.value.length + ' chars';
        });
    }
});
</script>
@endpush
@endsection