feat:계약 체결 단계에 상품 선택 기능 추가

- SalesContractController: 계약 상품 저장/조회 API
- product-selection.blade.php: 상품 선택 UI 컴포넌트
- scenario-step.blade.php: 6단계에서 상품 선택 컴포넌트 표시
- routes/web.php: /sales/contracts/* 라우트 추가

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/Http/Controllers/Sales/SalesContractController.php

@@ -0,0 +1,91 @@
+<?php
+
+namespace App\Http\Controllers\Sales;
+
+use App\Http\Controllers\Controller;
+use App\Models\Sales\SalesContractProduct;
+use App\Models\Sales\SalesTenantManagement;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\DB;
+
+/**
+ * 영업 계약관리 컨트롤러
+ */
+class SalesContractController extends Controller
+{
+    /**
+     * 계약 상품 저장 (전체 교체 방식)
+     */
+    public function saveProducts(Request $request): JsonResponse
+    {
+        $validated = $request->validate([
+            'tenant_id' => 'required|exists:tenants,id',
+            'products' => 'required|array',
+            'products.*.product_id' => 'required|exists:sales_products,id',
+            'products.*.category_id' => 'required|exists:sales_product_categories,id',
+            'products.*.development_fee' => 'required|numeric|min:0',
+            'products.*.subscription_fee' => 'required|numeric|min:0',
+        ]);
+
+        try {
+            DB::transaction(function () use ($validated) {
+                $tenantId = $validated['tenant_id'];
+
+                // 영업관리 레코드 조회 (없으면 생성)
+                $management = SalesTenantManagement::findOrCreateByTenant($tenantId);
+
+                // 기존 상품 삭제
+                SalesContractProduct::where('tenant_id', $tenantId)->delete();
+
+                // 새 상품 저장
+                foreach ($validated['products'] as $product) {
+                    SalesContractProduct::create([
+                        'tenant_id' => $tenantId,
+                        'management_id' => $management->id,
+                        'category_id' => $product['category_id'],
+                        'product_id' => $product['product_id'],
+                        'development_fee' => $product['development_fee'],
+                        'subscription_fee' => $product['subscription_fee'],
+                        'discount_rate' => 0,
+                        'created_by' => auth()->id(),
+                    ]);
+                }
+            });
+
+            return response()->json([
+                'success' => true,
+                'message' => '계약 상품이 저장되었습니다.',
+            ]);
+        } catch (\Exception $e) {
+            return response()->json([
+                'success' => false,
+                'message' => '저장 중 오류가 발생했습니다.',
+            ], 500);
+        }
+    }
+
+    /**
+     * 계약 상품 조회
+     */
+    public function getProducts(int $tenantId): JsonResponse
+    {
+        $products = SalesContractProduct::where('tenant_id', $tenantId)
+            ->with(['product', 'category'])
+            ->get();
+
+        $totals = [
+            'development_fee' => $products->sum('development_fee'),
+            'subscription_fee' => $products->sum('subscription_fee'),
+            'count' => $products->count(),
+        ];
+
+        return response()->json([
+            'success' => true,
+            'data' => [
+                'products' => $products,
+                'totals' => $totals,
+            ],
+        ]);
+    }
+}

resources/views/sales/modals/partials/product-selection.blade.php

@@ -0,0 +1,237 @@
+{{-- 계약 체결 시 상품 선택 컴포넌트 --}}
+@php
+    use App\Models\Sales\SalesProductCategory;
+    use App\Models\Sales\SalesContractProduct;
+
+    $categories = SalesProductCategory::active()
+        ->ordered()
+        ->with(['products' => fn($q) => $q->active()->ordered()])
+        ->get();
+
+    // 이미 선택된 상품들 조회
+    $selectedProducts = SalesContractProduct::where('tenant_id', $tenant->id)
+        ->pluck('product_id')
+        ->toArray();
+
+    // 기존 계약 상품 정보 (가격 커스터마이징 포함)
+    $contractProducts = SalesContractProduct::where('tenant_id', $tenant->id)
+        ->get()
+        ->keyBy('product_id');
+@endphp
+
+<div x-data="productSelection()" class="mt-6 bg-gradient-to-br from-indigo-50 to-blue-50 rounded-xl p-5 border border-indigo-100">
+    <div class="flex items-center gap-3 mb-4">
+        <div class="p-2 bg-indigo-100 rounded-lg">
+            <svg class="w-5 h-5 text-indigo-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" />
+            </svg>
+        </div>
+        <div>
+            <h3 class="font-bold text-gray-900">SAM 솔루션 상품 선택</h3>
+            <p class="text-sm text-gray-600">고객사에 제공할 솔루션 패키지를 선택하세요</p>
+        </div>
+    </div>
+
+    {{-- 카테고리 탭 --}}
+    <div class="flex gap-2 mb-4 overflow-x-auto pb-2">
+        @foreach($categories as $category)
+            <button type="button"
+                    x-on:click="activeCategory = '{{ $category->code }}'"
+                    :class="activeCategory === '{{ $category->code }}'
+                        ? 'bg-indigo-600 text-white'
+                        : 'bg-white text-gray-600 hover:bg-gray-100'"
+                    class="px-4 py-2 text-sm font-medium rounded-lg whitespace-nowrap transition-colors">
+                {{ $category->name }}
+            </button>
+        @endforeach
+    </div>
+
+    {{-- 상품 목록 --}}
+    @foreach($categories as $category)
+        <div x-show="activeCategory === '{{ $category->code }}'" x-cloak>
+            <div class="space-y-3">
+                @foreach($category->products as $product)
+                    @php
+                        $isSelected = in_array($product->id, $selectedProducts);
+                        $contractProduct = $contractProducts->get($product->id);
+                        $devFee = $contractProduct?->development_fee ?? $product->development_fee;
+                        $subFee = $contractProduct?->subscription_fee ?? $product->subscription_fee;
+                    @endphp
+                    <div class="bg-white rounded-lg border transition-all"
+                         :class="selectedProducts.includes({{ $product->id }}) ? 'border-indigo-300 shadow-sm' : 'border-gray-200'">
+                        <div class="p-4">
+                            <div class="flex items-start gap-3">
+                                {{-- 체크박스 --}}
+                                <button type="button"
+                                        x-on:click="toggleProduct({{ $product->id }}, {{ $product->category_id }}, {{ $product->development_fee }}, {{ $product->subscription_fee }}, {{ $product->is_required ? 'true' : 'false' }})"
+                                        :disabled="{{ $product->is_required ? 'true' : 'false' }}"
+                                        class="flex-shrink-0 mt-0.5 w-5 h-5 rounded border-2 flex items-center justify-center transition-all"
+                                        :class="selectedProducts.includes({{ $product->id }})
+                                            ? 'bg-indigo-600 border-indigo-600'
+                                            : 'border-gray-300 hover:border-indigo-400'">
+                                    <svg x-show="selectedProducts.includes({{ $product->id }})"
+                                         class="w-3 h-3 text-white" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="3" d="M5 13l4 4L19 7" />
+                                    </svg>
+                                </button>
+
+                                <div class="flex-1 min-w-0">
+                                    <div class="flex items-center gap-2">
+                                        <span class="font-semibold text-gray-900">{{ $product->name }}</span>
+                                        @if($product->is_required)
+                                            <span class="px-1.5 py-0.5 text-xs font-medium bg-red-100 text-red-600 rounded">필수</span>
+                                        @endif
+                                        @if($product->allow_flexible_pricing)
+                                            <span class="px-1.5 py-0.5 text-xs font-medium bg-green-100 text-green-600 rounded">재량권</span>
+                                        @endif
+                                    </div>
+                                    @if($product->description)
+                                        <p class="text-sm text-gray-500 mt-0.5">{{ $product->description }}</p>
+                                    @endif
+                                    <div class="flex items-center gap-4 mt-2 text-sm">
+                                        <span class="text-gray-500">가입비: <span class="font-semibold text-indigo-600">{{ $product->formatted_development_fee }}</span></span>
+                                        <span class="text-gray-500">월 구독료: <span class="font-semibold text-gray-900">{{ $product->formatted_subscription_fee }}</span></span>
+                                    </div>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                @endforeach
+            </div>
+        </div>
+    @endforeach
+
+    {{-- 합계 영역 --}}
+    <div class="mt-4 pt-4 border-t border-indigo-200">
+        <div class="bg-white rounded-lg p-4">
+            <div class="grid grid-cols-3 gap-4 text-center">
+                <div>
+                    <p class="text-xs text-gray-500 mb-1">선택 상품</p>
+                    <p class="text-xl font-bold text-gray-900" x-text="selectedProducts.length + '개'"></p>
+                </div>
+                <div>
+                    <p class="text-xs text-gray-500 mb-1">총 가입비</p>
+                    <p class="text-xl font-bold text-indigo-600" x-text="formatCurrency(totalDevFee)"></p>
+                </div>
+                <div>
+                    <p class="text-xs text-gray-500 mb-1">월 구독료</p>
+                    <p class="text-xl font-bold text-green-600" x-text="formatCurrency(totalSubFee)"></p>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    {{-- 저장 버튼 --}}
+    <div class="mt-4 flex justify-end">
+        <button type="button"
+                x-on:click="saveSelection()"
+                :disabled="saving"
+                class="inline-flex items-center gap-2 px-4 py-2 text-sm font-medium text-white bg-indigo-600 rounded-lg hover:bg-indigo-700 disabled:opacity-50 transition-colors">
+            <svg x-show="!saving" 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="M8 7H5a2 2 0 00-2 2v9a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-3m-1 4l-3 3m0 0l-3-3m3 3V4" />
+            </svg>
+            <svg x-show="saving" class="w-4 h-4 animate-spin" 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 x-text="saving ? '저장 중...' : '상품 선택 저장'"></span>
+        </button>
+    </div>
+</div>
+
+<script>
+function productSelection() {
+    return {
+        activeCategory: '{{ $categories->first()?->code ?? '' }}',
+        selectedProducts: @json($selectedProducts),
+        productData: {},
+        totalDevFee: 0,
+        totalSubFee: 0,
+        saving: false,
+
+        init() {
+            // 초기 데이터 설정
+            @foreach($categories as $category)
+                @foreach($category->products as $product)
+                    this.productData[{{ $product->id }}] = {
+                        categoryId: {{ $product->category_id }},
+                        devFee: {{ $product->development_fee }},
+                        subFee: {{ $product->subscription_fee }},
+                        isRequired: {{ $product->is_required ? 'true' : 'false' }},
+                    };
+                    @if($product->is_required && !in_array($product->id, $selectedProducts))
+                        this.selectedProducts.push({{ $product->id }});
+                    @endif
+                @endforeach
+            @endforeach
+            this.calculateTotals();
+        },
+
+        toggleProduct(productId, categoryId, devFee, subFee, isRequired) {
+            if (isRequired) return; // 필수 상품은 토글 불가
+
+            const index = this.selectedProducts.indexOf(productId);
+            if (index > -1) {
+                this.selectedProducts.splice(index, 1);
+            } else {
+                this.selectedProducts.push(productId);
+            }
+            this.calculateTotals();
+        },
+
+        calculateTotals() {
+            this.totalDevFee = 0;
+            this.totalSubFee = 0;
+            this.selectedProducts.forEach(id => {
+                const product = this.productData[id];
+                if (product) {
+                    this.totalDevFee += product.devFee;
+                    this.totalSubFee += product.subFee;
+                }
+            });
+        },
+
+        formatCurrency(value) {
+            return '₩' + Number(value).toLocaleString();
+        },
+
+        async saveSelection() {
+            this.saving = true;
+            try {
+                const products = this.selectedProducts.map(id => ({
+                    product_id: id,
+                    category_id: this.productData[id].categoryId,
+                    development_fee: this.productData[id].devFee,
+                    subscription_fee: this.productData[id].subFee,
+                }));
+
+                const response = await fetch('/sales/contracts/products', {
+                    method: 'POST',
+                    headers: {
+                        'Content-Type': 'application/json',
+                        'X-CSRF-TOKEN': document.querySelector('meta[name=csrf-token]').content,
+                        'Accept': 'application/json',
+                    },
+                    body: JSON.stringify({
+                        tenant_id: {{ $tenant->id }},
+                        products: products,
+                    }),
+                });
+
+                const result = await response.json();
+                if (result.success) {
+                    // 성공 메시지 표시 (간단히 alert 사용)
+                    alert('상품 선택이 저장되었습니다.');
+                } else {
+                    alert(result.message || '저장에 실패했습니다.');
+                }
+            } catch (error) {
+                console.error('저장 실패:', error);
+                alert('저장 중 오류가 발생했습니다.');
+            } finally {
+                this.saving = false;
+            }
+        }
+    };
+}
+</script>

resources/views/sales/modals/scenario-step.blade.php

@@ -149,6 +149,11 @@ class="border-t border-gray-100">
         @endforeach
     </div>
 
+    {{-- 계약 체결 단계 (Step 6)에서만 상품 선택 컴포넌트 표시 --}}
+    @if($step['id'] === 6 && $scenarioType === 'sales')
+        @include('sales.modals.partials.product-selection', ['tenant' => $tenant])
+    @endif
+
     {{-- 단계 이동 버튼 --}}
     @php
         $currentStepId = (int) $step['id'];

routes/web.php

@@ -842,4 +842,10 @@
         // API (영업 시나리오용)
         Route::get('/api/list', [SalesProductController::class, 'getProductsApi'])->name('api.list');
     });
+
+    // 계약관리
+    Route::prefix('contracts')->name('contracts.')->group(function () {
+        Route::post('/products', [\App\Http\Controllers\Sales\SalesContractController::class, 'saveProducts'])->name('products.save');
+        Route::get('/products/{tenant}', [\App\Http\Controllers\Sales\SalesContractController::class, 'getProducts'])->name('products.get');
+    });
 });