@extends('layouts.app')

@section('content')
    <div class="bg-gray-50 min-h-screen"
        x-data="productForm({{ ($product->productGroup && ($product->productGroup->has_variants || count($variants) > 1)) ? 'true' : 'false' }}, {{ json_encode($variants) }})">
        <div class="max-w-7xl mx-auto py-8 px-4 sm:px-6 lg:px-8">
            <div class="flex items-center pb-6 border-b-2 border-gray-200 mb-8">
                <a href="{{ route('products.index') }}"
                    class="mr-4 p-2 text-gray-500 hover:text-gray-800 hover:bg-gray-100 rounded-full transition-colors duration-200">
                    <svg class="w-6 h-6" 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"></path>
                    </svg>
                </a>
                <div>
                    <h1 class="text-3xl font-bold text-gray-900">Edit Produk</h1>
                    <p class="text-gray-600 mt-1">Memperbarui: <span
                            class="font-semibold">{{ $product->productGroup ? $product->productGroup->name : $product->name }}</span>
                    </p>
                </div>
            </div>

            <form action="{{ route('products.update', $product->id) }}" method="POST" enctype="multipart/form-data"
                class="space-y-8" onsubmit="return handleSubmit(this)">
                @csrf
                @method('PUT')

                {{-- Hidden Input for has_variants --}}
                <input type="hidden" name="has_variants" x-model="hasVariants">
                {{-- Hidden Input for deleted variant IDs --}}
                <input type="hidden" name="deleted_variant_ids" x-model="deletedVariantIds">

                <div class="grid grid-cols-1 lg:grid-cols-3 gap-8">
                    {{-- Kolom Kiri - Gambar & Tipe Produk --}}
                    <div class="lg:col-span-1 space-y-8">
                        <div class="bg-white p-6 rounded-xl shadow-md border border-gray-200">
                            <label for="type" class="block text-sm font-medium text-gray-700 mb-1">Tipe Produk <span
                                    class="text-red-500">*</span></label>
                            <select name="type" id="type"
                                class="w-full border-gray-300 rounded-lg shadow-sm focus:ring-indigo-500 focus:border-indigo-500"
                                required x-model="type" @change="handleTypeChange()">
                                <option value="standard">📦 Standar (Ritel)</option>
                                <option value="service">🛠️ Jasa (Tanpa Stok)</option>
                                <option value="custom">🎨 Kustom (Input Ukuran)</option>
                            </select>
                            <p class="text-xs text-gray-500 mt-1" x-show="type === 'service'">Untuk produk jasa seperti
                                Desain, Jilid, dll.</p>
                            <p class="text-xs text-gray-500 mt-1" x-show="type === 'custom'">Untuk produk cetak dengan
                                ukuran custom (Spanduk, Banner).</p>

                            <div x-show="hasVariants" class="mt-4">
                                <div class="p-3 bg-purple-50 text-purple-700 rounded-lg text-sm flex items-center mb-2">
                                    <svg class="w-4 h-4 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
                                            d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"></path>
                                    </svg>
                                    Mode Varian Aktif
                                </div>
                            </div>

                            {{-- Variant Toggle for Standard --}}
                            <div x-show="type === 'standard'" class="mt-4 pt-4 border-t border-gray-200">
                                <div class="flex items-center justify-between">
                                    <span class="text-sm font-medium text-gray-700">Opsi Varian</span>
                                    <button type="button" @click="hasVariants = !hasVariants"
                                        class="text-sm font-semibold focus:outline-none transition-colors"
                                        :class="hasVariants ? 'text-red-600 hover:text-red-800' : 'text-indigo-600 hover:text-indigo-800'">
                                        <span x-show="!hasVariants">+ Aktifkan Varian</span>
                                        <span x-show="hasVariants">Nonaktifkan</span>
                                    </button>
                                </div>
                                <p class="text-xs text-gray-500 mt-1" x-show="!hasVariants">Klik untuk menambah variasi
                                    warna/ukuran.</p>
                            </div>

                            {{-- Config khusus Service/Custom --}}
                            <div x-show="type === 'service' || type === 'custom'"
                                class="mt-4 pt-4 border-t border-gray-200 space-y-4">
                                <div>
                                    <label for="pricing_unit" class="block text-sm font-medium text-gray-700 mb-1">Satuan
                                        Harga <span class="text-red-500">*</span></label>
                                    <select name="pricing_unit" id="pricing_unit"
                                        class="w-full border-gray-300 rounded-lg shadow-sm focus:ring-indigo-500 focus:border-indigo-500"
                                        x-model="pricingUnit">
                                        <option value="unit">Pcs / Satuan</option>
                                        <option value="m2">Meter Persegi (m²)</option>
                                        <option value="cm2">Centimeter Persegi (cm²)</option>
                                    </select>
                                    <p class="text-xs text-gray-500 mt-1"
                                        x-show="pricingUnit === 'm2' || pricingUnit === 'cm2'">*Harga × P × L</p>
                                </div>
                                <div class="flex items-center">
                                    <label class="inline-flex items-center cursor-pointer">
                                        <input type="checkbox" name="is_custom_price" value="1"
                                            class="form-checkbox h-5 w-5 text-indigo-600 border-gray-300 rounded focus:ring-indigo-500"
                                            {{ old('is_custom_price') ? 'checked' : '' }} x-model="isCustomPrice">
                                        <span class="ml-2 text-sm text-gray-700 font-medium">Input Harga/Dimensi
                                            Manual saat Transaksi?</span>
                                    </label>
                                </div>
                            </div>
                        </div>

                        <div class="bg-white p-6 rounded-xl shadow-md border border-gray-200">
                            <label class="block text-sm font-medium text-gray-700 mb-2">Gambar Produk</label>
                            <div
                                class="aspect-square bg-gray-100 rounded-lg border-2 border-dashed border-gray-300 flex items-center justify-center overflow-hidden">
                                <div id="image-preview" class="{{ $product->image ? '' : 'hidden' }} w-full h-full"><img
                                        id="preview-img"
                                        src="{{ $product->image ? asset('storage/' . $product->image) : '' }}" alt="Preview"
                                        class="w-full h-full object-cover"></div>
                                <div id="upload-placeholder" class="{{ $product->image ? 'hidden' : '' }} text-center p-4">
                                    <svg class="w-12 h-12 text-gray-400 mx-auto" fill="none" stroke="currentColor"
                                        viewBox="0 0 24 24">
                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5"
                                            d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z">
                                        </path>
                                    </svg>
                                    <p class="text-sm text-gray-600 mt-2">Klik untuk ganti</p>
                                </div>
                            </div>
                            <input type="file" name="image" id="image" accept="image/*" class="hidden"
                                onchange="previewImage(this)">
                            <button type="button" onclick="document.getElementById('image').click()"
                                class="mt-4 w-full px-4 py-2 bg-white border border-gray-300 text-gray-700 rounded-lg hover:bg-gray-50 transition-colors duration-200">Ganti
                                Gambar</button>
                            @error('image')<p class="text-red-500 text-xs mt-1">{{ $message }}</p>@enderror
                        </div>
                    </div>

                    {{-- Kolom Kanan - Detail Produk --}}
                    <div class="lg:col-span-2 space-y-8">
                        <div class="bg-white p-6 rounded-xl shadow-md border border-gray-200">
                            <h3 class="text-lg font-semibold text-gray-900 mb-4 border-b pb-3">Informasi Utama</h3>

                            <div class="space-y-6">





                                {{-- Nama Produk (Parent) --}}
                                <div>
                                    <label for="name" class="block text-sm font-medium text-gray-700 mb-1">Nama Produk
                                        (Induk) <span class="text-red-500">*</span></label>
                                    <input type="text" name="name" id="name"
                                        value="{{ old('name', $product->productGroup ? $product->productGroup->name : $product->name) }}"
                                        class="w-full border-gray-300 rounded-lg shadow-sm focus:ring-indigo-500 focus:border-indigo-500"
                                        required>
                                    @error('name')<p class="text-red-500 text-xs mt-1">{{ $message }}</p>@enderror
                                </div>

                                {{-- Kategori --}}
                                <div>
                                    <label for="category_id" class="block text-sm font-medium text-gray-700 mb-1">Kategori
                                        <span class="text-red-500">*</span></label>
                                    <select name="category_id" id="category_id"
                                        class="w-full border-gray-300 rounded-lg shadow-sm focus:ring-indigo-500 focus:border-indigo-500"
                                        required>
                                        <option value="">Pilih kategori</option>
                                        @foreach($categories as $category)<option value="{{ $category->id }}"
                                            @selected(old('category_id', $product->category_id) == $category->id)>
                                            {{ $category->name }}
                                        </option>@endforeach
                                    </select>
                                    @error('category_id')<p class="text-red-500 text-xs mt-1">{{ $message }}</p>@enderror
                                </div>

                                {{-- Deskripsi --}}
                                <div>
                                    <label for="description" class="block text-sm font-medium text-gray-700 mb-1">Deskripsi
                                        (Opsional)</label>
                                    <textarea name="description" id="description" rows="3"
                                        class="w-full border-gray-300 rounded-lg shadow-sm focus:ring-indigo-500 focus:border-indigo-500">{{ old('description', $product->description) }}</textarea>
                                </div>
                            </div>
                        </div>

                        {{-- Logic for Single Product --}}
                        <div x-show="!hasVariants"
                            class="bg-white p-6 rounded-xl shadow-md border border-gray-200 transition-all duration-300">
                            <h3 class="text-lg font-semibold text-gray-900 mb-4 border-b pb-3">Detail Produk Satuan</h3>

                            <div class="space-y-6">
                                {{-- Barcode --}}
                                <div>
                                    <label for="barcode" class="block text-sm font-medium text-gray-700 mb-1">Barcode
                                        (SKU)</label>
                                    <div class="flex w-full min-w-0">
                                        <input type="text" name="barcode" id="barcode"
                                            value="{{ old('barcode', $product->barcode) }}"
                                            class="flex-grow min-w-0 border-gray-300 rounded-l-lg shadow-sm focus:ring-indigo-500 focus:border-indigo-500 rounded-r-none">
                                        <button type="button" onclick="openProductScannerModal('barcode')" class="flex-shrink-0 inline-flex items-center px-3 py-2 bg-gray-100 border border-l-0 border-gray-300 rounded-r-lg hover:bg-gray-200">
                                            Scan
                                        </button>
                                    </div>
                                    @error('barcode')<p class="text-red-500 text-xs mt-1">{{ $message }}</p>@enderror
                                </div>

                                <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
                                    <div>
                                        <label for="purchase_price"
                                            class="block text-sm font-medium text-gray-700 mb-1">Harga
                                            Beli <span class="text-red-500">*</span></label>
                                        <div class="relative"><span
                                                class="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-500">Rp</span><input
                                                type="number" name="purchase_price" id="purchase_price"
                                                value="{{ old('purchase_price', (int) $product->purchase_price) }}"
                                                class="pl-10 w-full border-gray-300 rounded-lg shadow-sm focus:ring-indigo-500 focus:border-indigo-500"
                                                :required="!hasVariants"></div>
                                    </div>
                                    <div>
                                        <label for="selling_price" class="block text-sm font-medium text-gray-700 mb-1">
                                            Harga Jual
                                            <span class="text-red-500">*</span>
                                        </label>
                                        <div class="relative"><span
                                                class="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-500">Rp</span><input
                                                type="number" name="selling_price" id="selling_price"
                                                value="{{ old('selling_price', (int) $product->selling_price) }}"
                                                class="pl-10 w-full border-gray-300 rounded-lg shadow-sm focus:ring-indigo-500 focus:border-indigo-500"
                                                :required="!hasVariants"></div>
                                    </div>

                                    <div x-show="type === 'standard'" x-transition class="md:col-span-2 rounded-xl border border-teal-100 bg-teal-50/60 p-4">
                                        <div class="flex items-center justify-between gap-3">
                                            <div>
                                                <h4 class="text-sm font-semibold text-teal-900">Harga Grosir Bertingkat</h4>
                                                <p class="mt-1 text-xs text-teal-700">Atur harga otomatis per item saat qty di POS mencapai batas tertentu.</p>
                                            </div>
                                            <button type="button" @click="addWholesalePrice()" class="rounded-lg border border-teal-200 bg-white px-3 py-1.5 text-xs font-semibold text-teal-700 hover:bg-teal-100">
                                                + Tambah Tier
                                            </button>
                                        </div>

                                        <template x-if="wholesalePrices.length === 0">
                                            <div class="mt-3 rounded-lg border border-dashed border-teal-200 bg-white/80 px-4 py-3 text-xs text-teal-700">
                                                Belum ada tier grosir. Harga jual normal akan tetap dipakai.
                                            </div>
                                        </template>

                                        <div class="mt-3 space-y-3">
                                            <template x-for="(tier, index) in wholesalePrices" :key="'wholesale-edit-' + index">
                                                <div class="grid grid-cols-1 gap-3 rounded-xl border border-white bg-white p-3 shadow-sm md:grid-cols-[minmax(0,1fr)_minmax(0,1fr)_auto]">
                                                    <div>
                                                        <label class="mb-1 block text-xs font-medium text-gray-600">Minimal Qty</label>
                                                        <input type="number" min="1" :name="'wholesale_prices[' + index + '][min_quantity]'" x-model="tier.min_quantity" class="w-full rounded-lg border-gray-300 text-sm shadow-sm focus:border-teal-500 focus:ring-teal-500" placeholder="100">
                                                    </div>
                                                    <div>
                                                        <label class="mb-1 block text-xs font-medium text-gray-600">Harga per Item</label>
                                                        <div class="relative">
                                                            <span class="absolute left-3 top-1/2 -translate-y-1/2 text-gray-500">Rp</span>
                                                            <input type="number" min="0" :name="'wholesale_prices[' + index + '][price]'" x-model="tier.price" class="w-full rounded-lg border-gray-300 pl-10 text-sm shadow-sm focus:border-teal-500 focus:ring-teal-500" placeholder="4500">
                                                        </div>
                                                    </div>
                                                    <div class="flex items-end">
                                                        <button type="button" @click="removeWholesalePrice(index)" class="h-10 rounded-lg border border-red-200 px-3 text-xs font-semibold text-red-600 hover:bg-red-50">
                                                            Hapus
                                                        </button>
                                                    </div>
                                                </div>
                                            </template>
                                        </div>
                                    </div>

                                    <div class="flex items-center pt-6">
                                        <label class="inline-flex items-center cursor-pointer">
                                            <input type="checkbox" name="is_custom_price" value="1"
                                                class="form-checkbox h-5 w-5 text-indigo-600 border-gray-300 rounded focus:ring-indigo-500"
                                                {{ old('is_custom_price', $product->is_custom_price) ? 'checked' : '' }}
                                                x-model="isCustomPrice">
                                            <span class="ml-2 text-sm text-gray-700 font-medium">Input Harga/Dimensi
                                                Manual saat Transaksi?</span>
                                        </label>
                                    </div>

                                    <div class="flex items-center pt-6" x-show="type === 'custom'">
                                        <label class="inline-flex items-center cursor-pointer">
                                            <input type="checkbox" name="is_stock_managed" value="1"
                                                class="form-checkbox h-5 w-5 text-indigo-600 border-gray-300 rounded focus:ring-indigo-500"
                                                x-model="isStockManaged">
                                            <span class="ml-2 text-sm text-gray-700 font-medium">Kelola Stok Produk
                                                Ini?</span>
                                        </label>
                                    </div>
                                </div>

                                <div x-show="type === 'standard' || (type === 'custom' && isStockManaged)">
                                    <label for="stock" class="block text-sm font-medium text-gray-700 mb-1">Stok
                                        Saat Ini</label>
                                    <input type="number" name="stock" id="stock" value="{{ old('stock', $product->stock) }}"
                                        class="w-full border-gray-300 rounded-lg shadow-sm focus:ring-indigo-500 focus:border-indigo-500"
                                        :required="type === 'standard' || (type === 'custom' && isStockManaged)">
                                    <p class="text-xs text-gray-500 mt-1">Stok akan bertambah/berkurang sesuai transaksi.
                                    </p>
                                </div>

                                <div x-show="type === 'standard' || (type === 'custom' && isStockManaged)">
                                    <label for="minimum_stock" class="block text-sm font-medium text-gray-700 mb-1">Minimum
                                        Stok</label>
                                    <input type="number" name="minimum_stock" id="minimum_stock"
                                        value="{{ old('minimum_stock', $product->minimum_stock) }}"
                                        class="w-full border-gray-300 rounded-lg shadow-sm focus:ring-indigo-500 focus:border-indigo-500"
                                        :required="type === 'standard' || (type === 'custom' && isStockManaged)">
                                </div>
                            </div>
                        </div>


                    </div>
                </div>

                {{-- Logic for Variant Product --}}
                <div x-show="hasVariants"
                    class="bg-white p-6 rounded-xl shadow-md border border-gray-200 transition-all duration-300 mt-8">
                    <div class="flex items-center justify-between mb-4 border-b pb-3">
                        <h3 class="text-lg font-semibold text-gray-900">Daftar Varian (Edit Massal)</h3>
                        <button type="button" @click="addVariant()"
                            class="px-3 py-1.5 bg-indigo-50 text-indigo-700 text-sm font-medium rounded-lg hover:bg-indigo-100 transition-colors">
                            + Tambah Varian
                        </button>
                    </div>

                    <div class="overflow-x-auto">
                        <table class="min-w-full divide-y divide-gray-200 table-fixed">
                            <thead class="bg-gray-50">
                                <tr>
                                    <th scope="col"
                                        class="px-3 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider"
                                        style="width: 30%;">
                                        Nama Varian</th>
                                    <th scope="col"
                                        class="px-3 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider"
                                        style="width: 18%;">
                                        Harga Beli</th>
                                    <th scope="col"
                                        class="px-3 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider"
                                        style="width: 18%;">
                                        Harga Jual</th>
                                    <th scope="col"
                                        class="px-3 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider"
                                        style="width: 12%;">
                                        Jml Stok</th>
                                    <th scope="col"
                                        class="px-3 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider"
                                        style="width: 12%;">
                                        Min Stok</th>
                                    <th scope="col"
                                        class="px-2 py-3 text-center text-xs font-medium text-gray-500 uppercase tracking-wider"
                                        style="width: 50px;">
                                        Aksi</th>
                                </tr>
                            </thead>
                            <tbody class="bg-white divide-y divide-gray-200">
                                <template x-for="(variant, index) in variants" :key="variant.temp_id || variant.id">
                                    <tr>
                                        <td class="px-3 py-2 align-top">
                                            {{-- Hidden ID --}}
                                            <input type="hidden" :name="'variants['+index+'][id]'" x-model="variant.id"
                                                x-if="variant.id">

                                            <div class="flex space-x-2">
                                                {{-- Type Selector (UI Helper) --}}
                                                <select
                                                    class="block w-1/3 text-xs border-gray-300 rounded-md shadow-sm focus:ring-indigo-500 focus:border-indigo-500"
                                                    x-model="variant.ui_type" @change="updateVariantPlaceholder(index)">
                                                    <option value="custom">Custom</option>
                                                    <option value="color">Warna</option>
                                                    <option value="size">Ukuran</option>
                                                </select>
                                                {{-- Name Input --}}
                                                <input type="text" :name="'variants['+index+'][variant_name]'"
                                                    x-model="variant.variant_name"
                                                    :placeholder="variant.ui_placeholder || 'Contoh: Merah, XL...'"
                                                    class="block w-2/3 border-gray-300 rounded-md shadow-sm focus:ring-indigo-500 focus:border-indigo-500 text-sm"
                                                    :required="hasVariants">
                                            </div>
                                            <div class="mt-1 flex space-x-2">
                                                <div class="flex w-full">
                                                    <input type="text" :name="'variants['+index+'][barcode]'"
                                                        x-model="variant.barcode" :id="'variant-barcode-'+index" placeholder="Barcode (Opsional)"
                                                        class="block w-full text-xs border-gray-300 rounded-l-md rounded-r-none text-gray-500 placeholder-gray-400">
                                                    <button type="button" @click="openProductScannerModal('variant-barcode-'+index)" class="px-2 rounded-r-md border border-l-0 border-gray-300 bg-gray-50 text-xs text-gray-600 hover:bg-gray-100">
                                                        Scan
                                                    </button>
                                                </div>
                                            </div>
                                        </td>
                                        <td class="px-3 py-2 align-top">
                                            <div class="relative rounded-md shadow-sm">
                                                <div
                                                    class="absolute inset-y-0 left-0 pl-2 flex items-center pointer-events-none">
                                                    <span class="text-gray-500 text-xs">Rp</span>
                                                </div>
                                                <input type="number" :name="'variants['+index+'][purchase_price]'"
                                                    x-model="variant.purchase_price"
                                                    class="focus:ring-indigo-500 focus:border-indigo-500 block w-full pl-9 text-sm border-gray-300 rounded-md">
                                            </div>
                                        </td>
                                        <td class="px-3 py-2 align-top">
                                            <div class="relative rounded-md shadow-sm">
                                                <div
                                                    class="absolute inset-y-0 left-0 pl-2 flex items-center pointer-events-none">
                                                    <span class="text-gray-500 text-xs">Rp</span>
                                                </div>
                                                <input type="number" :name="'variants['+index+'][selling_price]'"
                                                    x-model="variant.selling_price"
                                                    class="focus:ring-indigo-500 focus:border-indigo-500 block w-full pl-9 text-sm border-gray-300 rounded-md">
                                            </div>
                                        </td>
                                        <td class="px-3 py-2 align-top">
                                            <input type="number" :name="'variants['+index+'][stock]'"
                                                x-model="variant.stock" placeholder="0"
                                                class="focus:ring-indigo-500 focus:border-indigo-500 block w-full text-sm border-gray-300 rounded-md text-center">
                                        </td>
                                        <td class="px-3 py-2 align-top">
                                            <input type="number" :name="'variants['+index+'][minimum_stock]'"
                                                x-model="variant.minimum_stock" placeholder="10" title="Minimum Stok"
                                                class="focus:ring-indigo-500 focus:border-indigo-500 block w-full text-sm border-gray-300 rounded-md text-center">
                                        </td>
                                        <td class="px-2 py-2 align-middle text-center">
                                            <button type="button" @click="removeVariant(index)"
                                                class="text-red-600 hover:text-red-900 focus:outline-none p-1">
                                                <svg class="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
                                                        d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16">
                                                    </path>
                                                </svg>
                                            </button>
                                        </td>
                                    </tr>
                                </template>
                            </tbody>
                        </table>
                    </div>
                </div>

                <div class="flex items-center justify-end space-x-4 pt-6 mt-8 border-t border-gray-200">
                    <a href="{{ route('products.index') }}"
                        class="px-6 py-2 text-gray-700 bg-white hover:bg-gray-100 border border-gray-300 rounded-lg font-medium transition-colors duration-200">Batal</a>
                    <button type="submit" id="submit-btn"
                        class="px-6 py-2 bg-indigo-600 text-white rounded-lg font-medium hover:bg-indigo-700 transition-colors duration-200 shadow-sm flex items-center">
                        <svg id="loading-spinner" class="animate-spin -ml-1 mr-3 h-5 w-5 text-white hidden"
                            xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24">
                            <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4">
                            </circle>
                            <path class="opacity-75" fill="currentColor"
                                d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z">
                            </path>
                        </svg>
                        <span id="btn-text">Simpan Perubahan</span>
                    </button>
                </div>
            </form>
        </div>
    </div>

    <div id="product-scanner-modal" class="fixed inset-0 bg-black bg-opacity-75 hidden flex items-center justify-center z-50 p-4">
        <div class="bg-white rounded-lg p-4 w-full max-w-md">
            <div class="flex items-center justify-between mb-3">
                <h3 class="text-lg font-semibold text-gray-900">Scan Barcode</h3>
                <button type="button" onclick="closeProductScannerModal()" class="text-gray-500 hover:text-gray-700">Tutup</button>
            </div>
            <div id="product-reader" class="overflow-hidden rounded-lg"></div>
        </div>
    </div>

@endsection

@push('scripts')
    <script>
        function productForm(hasVariantsInit, variantsInit) {
            return {
                hasVariants: hasVariantsInit,
                type: '{{ old('type', $product->type) }}',
                pricingUnit: '{{ old('pricing_unit', $product->pricing_unit ?? 'unit') }}',
                isCustomPrice: {{ old('is_custom_price', $product->is_custom_price) ? 'true' : 'false' }},
                isStockManaged: {{ old('is_stock_managed', $product->is_stock_managed) ? 'true' : 'false' }},
                variants: @json($product->productGroup ? $product->productGroup->products : ($product->type === 'standard' ? [] : [])),
                deletedVariantIds: [],
                wholesalePrices: @json(old('wholesale_prices', $product->wholesalePrices->map(fn($tier) => ['min_quantity' => (int) $tier->min_quantity, 'price' => (float) $tier->price])->values()->all())),

                init() {
                    this.wholesalePrices = this.normalizeWholesalePrices(this.wholesalePrices);
                    // Initialize variants from the passed variantsInit or default empty array
                    this.variants = (variantsInit || []).map(v => {
                        return {
                            id: v.id,
                            temp_id: v.id, // Keep temp_id for existing variants
                            variant_name: v.variant_name || '',
                            ui_type: 'custom', // Default UI helper
                            ui_placeholder: 'Contoh: Merah, XL...',
                            purchase_price: parseInt(v.purchase_price),
                            selling_price: parseInt(v.selling_price),
                            stock: parseInt(v.stock),
                            minimum_stock: v.minimum_stock ? parseInt(v.minimum_stock) : 10,
                            barcode: v.barcode
                        };
                    });
                },

                updateVariantPlaceholder(index) {
                    const type = this.variants[index].ui_type;
                    if (type === 'color') {
                        this.variants[index].ui_placeholder = 'Warna (e.g. Merah, Biru)';
                    } else if (type === 'size') {
                        this.variants[index].ui_placeholder = 'Ukuran (e.g. S, M, XL)';
                    } else {
                        this.variants[index].ui_placeholder = 'Contoh: Merah, XL...';
                    }
                },

                handleTypeChange() {
                    if (this.type === 'service') {
                        this.hasVariants = false;
                        this.isStockManaged = false;
                    } else if (this.type === 'custom') {
                        this.hasVariants = false;
                        // Don't auto-reset isStockManaged logic here for existing custom products
                    } else {
                        // Standard
                        this.isStockManaged = true;
                    }
                },

                addVariant() {
                    this.variants.push({
                        id: null, // New variant
                        temp_id: 'new_' + Date.now(),
                        variant_name: '',
                        ui_type: 'custom',
                        ui_placeholder: 'Contoh: Merah, XL...',
                        purchase_price: '',
                        selling_price: '',
                        stock: 0,
                        minimum_stock: 10,
                        barcode: ''
                    });
                },

                removeVariant(index) {
                    const variant = this.variants[index];
                    if (variant.id) {
                        // Mark for deletion
                        this.deletedVariantIds.push(variant.id);
                    }
                    this.variants.splice(index, 1);
                },

                normalizeWholesalePrices(tiers = []) {
                    return (tiers || [])
                        .filter(tier => tier && (tier.min_quantity || tier.price))
                        .map(tier => ({
                            min_quantity: tier.min_quantity ?? '',
                            price: tier.price ?? '',
                        }));
                },

                addWholesalePrice() {
                    this.wholesalePrices.push({
                        min_quantity: '',
                        price: '',
                    });
                },

                removeWholesalePrice(index) {
                    this.wholesalePrices.splice(index, 1);
                }
            }
        }

        function handleSubmit(form) {
            const btn = document.getElementById('submit-btn');
            const spinner = document.getElementById('loading-spinner');
            const text = document.getElementById('btn-text');

            btn.disabled = true;
            btn.classList.add('opacity-75', 'cursor-not-allowed');
            spinner.classList.remove('hidden');
            text.textContent = 'Menyimpan...';

            return true;
        }
    </script>
    <script>
        let productScanner = null;
        let productScannerTargetId = 'barcode';

        // Script JS untuk preview gambar
        function previewImage(input) {
            if (input.files && input.files[0]) {
                // Validasi ukuran file (max 2MB)
                if (input.files[0].size > 2 * 1024 * 1024) {
                    Swal.fire({
                        icon: 'error',
                        title: 'Ukuran File Terlalu Besar',
                        text: 'Maksimal ukuran gambar adalah 2MB. Silakan pilih gambar yang lebih kecil.'
                    });
                    input.value = ''; // Reset input
                    return;
                }

                const reader = new FileReader();
                reader.onload = function (e) {
                    document.getElementById('preview-img').src = e.target.result;
                    document.getElementById('image-preview').classList.remove('hidden');
                    document.getElementById('upload-placeholder').classList.add('hidden');
                }
                reader.readAsDataURL(input.files[0]);
            }
        }

        function openProductScannerModal(targetId = 'barcode') {
            if (typeof Html5Qrcode === 'undefined' || typeof Html5QrcodeSupportedFormats === 'undefined') {
                Swal.fire({
                    icon: 'error',
                    title: 'Scanner Belum Siap',
                    text: 'Library scanner barcode gagal dimuat. Coba refresh halaman.'
                });
                return;
            }

            productScannerTargetId = targetId;
            document.getElementById('product-scanner-modal').classList.remove('hidden');
            if (productScanner) return;

            productScanner = new Html5Qrcode('product-reader');
            productScanner.start(
                { facingMode: 'environment' },
                {
                    fps: 10,
                    qrbox: { width: 250, height: 250 },
                    formatsToSupport: [
                        Html5QrcodeSupportedFormats.CODE_128,
                        Html5QrcodeSupportedFormats.EAN_13,
                        Html5QrcodeSupportedFormats.UPC_A,
                        Html5QrcodeSupportedFormats.UPC_E,
                        Html5QrcodeSupportedFormats.CODE_39,
                        Html5QrcodeSupportedFormats.EAN_8,
                        Html5QrcodeSupportedFormats.QR_CODE
                    ]
                },
                decodedText => {
                    const input = document.getElementById(productScannerTargetId);
                    if (input) {
                        input.value = decodedText;
                        input.dispatchEvent(new Event('input', { bubbles: true }));
                    }
                    closeProductScannerModal();
                    Swal.fire({ toast: true, position: 'top-end', icon: 'success', title: 'Barcode berhasil discan', timer: 1200, showConfirmButton: false });
                },
                () => {}
            ).catch(() => {
                Swal.fire({ icon: 'error', title: 'Gagal Membuka Kamera', text: 'Pastikan izin kamera diberikan dan gunakan HTTPS.' });
                closeProductScannerModal();
            });
        }

        function closeProductScannerModal() {
            if (productScanner) {
                productScanner.stop().finally(() => {
                    productScanner = null;
                    document.getElementById('product-scanner-modal').classList.add('hidden');
                });
            } else {
                document.getElementById('product-scanner-modal').classList.add('hidden');
            }
        }
    </script>
    <script src="https://unpkg.com/html5-qrcode@2.3.8/html5-qrcode.min.js"></script>
@endpush