Implement asset upload API and utility functions

- Add Asset and CardLayer model updates
- Create asset upload API endpoints
- Add AssetUploadDialog component
- Create card layout algorithms
- Implement symmetry generation utils
- Add template configurations

backend/apps/management/__init__.py

@@ -0,0 +1 @@
+# management/__init__.py

backend/apps/management/commands/__init__.py

@@ -0,0 +1 @@
+# management/commands/__init__.py

backend/apps/management/commands/init_system.py

@@ -0,0 +1,145 @@
+import os
+from django.core.management.base import BaseCommand
+from django.core.files.storage import default_storage
+from apps.projects.models import Project, Asset, CardLayer
+from apps.templates.models import CardTemplate
+
+
+class Command(BaseCommand):
+    help = 'Initialize cards design system with sample data'
+
+    def handle(self, *args, **options):
+        self.stdout.write(self.style.SUCCESS('Starting initialization...'))
+
+        # 创建模板和数据
+        self.create_templates()
+        self.create_default_assets()
+        self.create_sample_project()
+
+        self.stdout.write(self.style.SUCCESS('Initialization complete!'))
+
+    def create_templates(self):
+        """创建示例模板"""
+        templates = [
+            {
+                'id': 'classic',
+                'name': '经典风格',
+                'description': '标准扑克牌设计，传统花色和字体',
+                'color_spade': '#000000',
+                'color_heart': '#FF0000',
+                'color_club': '#000000',
+                'color_diamond': '#FF0000',
+                'color_background': '#FFFFFF',
+            },
+            {
+                'id': 'modern',
+                'name': '现代简约',
+                'description': '扁平化设计，简洁线条',
+                'color_spade': '#333333',
+                'color_heart': '#E53935',
+                'color_club': '#333333',
+                'color_diamond': '#E53935',
+                'color_background': '#FAFAFA',
+            }
+        ]
+
+        for template_data in templates:
+            try:
+                template = CardTemplate.objects.get(id=template_data['id'])
+                if not template.default_assets:
+                    template.default_assets = template_data
+                    template.save()
+            except CardTemplate.DoesNotExist:
+                template = CardTemplate.objects.create(
+                    id=template_data['id'],
+                    name=template_data['name'],
+                    description=template_data['description'],
+                    color_spade=template_data['color_spade'],
+                    color_heart=template_data['color_heart'],
+                    color_club=template_data['color_club'],
+                    color_diamond=template_data['color_diamond'],
+                    color_background=template_data['color_background'],
+                    default_assets=template_data
+                )
+
+    def create_default_assets(self):
+        """创建默认花色素材"""
+        suits = {
+            'spade': 0xE27B60,
+            'heart': 0xE27B60,
+            'club': 0xE27B60,
+            'diamond': 0xE27B60
+        }
+
+        materials = 'backend/media/assets'
+        os.makedirs(materials, exist_ok=True)
+
+        for suit_name, color_code in suits.items():
+            # 创建简单SVG花色图案
+            svg_path = os.path.join('backend/media/assets', f'{suit_name}.svg')
+
+            storyboardSVG = '''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
+  <path d="M50 5 L50 30 L55 25 L55 5 Z" fill="''' f'#{color_code:06X}' f'"\n/>
+  <path d="M50 5 L45 25 L50 30 L55 25 Z" fill="''' f'#{color_code:06X}' f'"\n/>
+  <path d="M30 55 Q30 45 40 45 L50 55 L60 45 Q70 45 70 55 Q70 65 60 70 L50 60 L40 70 Q30 65 30 55 Z" fill="''' f'#{color_code:06X}' f'"\n/>
+  <path d="M20 80 L20 95 L80 95 L80 80" stroke="''' f'#{color_code:06X}' f'"\n stroke-width="8" fill="none"/>^
+</svg>'''
+
+            with open(svg_path, 'w', encoding='utf-8') as f:
+                f.write(storyboardSVG)
+
+            # 创建Asset记录
+            Asset.objects.create(
+                asset_type='suit_symbol',
+                asset_key=suit_name,
+                color=f'#{color_code:06X}'
+            )
+
+    def create_sample_project(self):
+        """创建示例项目"""
+        try:
+            project = Project.objects.get(name="示例项目")
+            self.stdout.write(self.style.WARNING('示例项目已存在，跳过创建'))
+            return
+        except Project.DoesNotExist:
+            project = Project.objects.create(
+                name="示例项目",
+                template_id='classic',
+                card_width=750,
+                card_height=1050,
+                export_resolution='standard',
+                export_include_back=True
+            )
+
+        # 创建示例素材
+        suit_assets = [
+            {'type': 'suit_symbol', 'key': 'spade'},
+            {'type': 'suit_symbol', 'key': 'heart'},
+            {'type': 'suit_symbol', 'key': 'club'},
+            {'type': 'suit_symbol', 'key': 'diamond'},
+        ]
+
+        for asset_data in suit_assets:
+            Asset.objects.create(
+                asset_type=asset_data['type'],
+                asset_key=asset_data['key'],
+                width=60,
+                height=60
+            )
+
+        # 创建JQK示例素材记录（临时）
+        face_cards = [
+            {'type': 'face_card', 'key': 'spade-J'},
+            {'type': 'face_card', 'key': 'spade-Q'},
+            {'type': 'face_card', 'key': 'spade-K'},
+        ]
+
+        for face_card in face_cards:
+            Asset.objects.create(
+                asset_type=face_card['type'],
+                asset_key=face_card['key'],
+                width=300,
+                height=500
+            )
+
+        self.stdout.write(self.style.SUCCESS(f'项目 "{project.name}" 已创建'))

backend/apps/projects/models.py

@@ -1,6 +1,7 @@
 from django.db import models
 import uuid
 
+
 class Project(models.Model):
     """项目配置模型"""
     id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
@@ -24,8 +25,11 @@ class Project(models.Model):
 
 class Asset(models.Model):
     """项目素材模型"""
+    project = models.ForeignKey(Project, on_delete=models.CASCADE, related_name='assets')
     asset_type = models.CharField(max_length=20)  # 'suit_symbol', 'face_card', 'joker', 'back', 'border'
     asset_key = models.CharField(max_length=50)    # 如 'spade', 'heart-J', 'big_joker'
+    file_path = models.CharField(max_length=255)   # 相对于media目录
+    file_name = models.CharField(max_length=100)
     width = models.IntegerField(null=True)
     height = models.IntegerField(null=True)
     uploaded_at = models.DateTimeField(auto_now_add=True)
@@ -33,9 +37,13 @@ class Asset(models.Model):
     def __str__(self):
         return f"{self.asset_type}:{self.asset_key}"
 
+    class Meta:
+        ordering = ['-uploaded_at']
+
 
 class CardLayer(models.Model):
     """牌面图层配置模型"""
+    project = models.ForeignKey(Project, on_delete=models.CASCADE, related_name='layers')
     card_type = models.CharField(max_length=20)  # 'number', 'face', 'joker'
     card_key = models.CharField(max_length=30)   # 'spade-A', 'heart-K', 'big_joker'
     layer_name = models.CharField(max_length=50)
@@ -47,7 +55,6 @@ class CardLayer(models.Model):
 
     # 图层属性（JSON存储）
     properties = models.JSONField(default=dict)
-    file_ref = models.ForeignKey(Asset, on_delete=models.SET_NULL, null=True, related_name='layers')
 
     def __str__(self):
         return f"{self.card_key}-{self.layer_name}"

backend/apps/projects/serializers.py

@@ -1,4 +1,5 @@
 from rest_framework import serializers
+from django.conf import settings
 from .models import Project, Asset, CardLayer
 
 
@@ -9,10 +10,20 @@ class ProjectSerializer(serializers.ModelSerializer):
 
 
 class AssetSerializer(serializers.ModelSerializer):
+    file_url = serializers.SerializerMethodField()
+
     class Meta:
         model = Asset
         fields = '__all__'
 
+    def get_file_url(self, obj):
+        if obj.file_path:
+            request = self.context.get('request')
+            if request:
+                return request.build_absolute_uri(f'{settings.MEDIA_URL}{obj.file_path}')
+            return f'{settings.MEDIA_URL}{obj.file_path}'
+        return None
+
 
 class CardLayerSerializer(serializers.ModelSerializer):
     class Meta:

backend/apps/projects/urls.py

@@ -1,7 +1,9 @@
 from django.urls import path
-from .views import project_list, project_detail
+from .views import project_list, project_detail, asset_list, asset_detail
 
 urlpatterns = [
     path('', project_list, name='project-list'),
     path('<str:pk>/', project_detail, name='project-detail'),
+    path('<str:project_pk>/assets/', asset_list, name='asset-list'),
+    path('<str:project_pk>/assets/<str:asset_pk>/', asset_detail, name='asset-detail'),
 ]

backend/apps/projects/views.py

@@ -1,8 +1,12 @@
 from rest_framework.decorators import api_view
 from rest_framework.response import Response
 from rest_framework import status
-from .models import Project
-from .serializers import ProjectSerializer, ProjectDetailSerializer
+from django.core.files.storage import default_storage
+from django.conf import settings
+from PIL import Image
+import os
+from .models import Project, Asset
+from .serializers import ProjectSerializer, ProjectDetailSerializer, AssetSerializer
 
 
 @api_view(['GET', 'POST'])
@@ -43,3 +47,80 @@ def project_detail(request, pk):
     elif request.method == 'DELETE':
         project.delete()
         return Response(status=status.HTTP_204_NO_CONTENT)
+
+
+@api_view(['GET', 'POST'])
+def asset_list(request, project_pk):
+    """获取项目素材列表或上传新素材"""
+    try:
+        project = Project.objects.get(pk=project_pk)
+    except Project.DoesNotExist:
+        return Response({'error': 'Project not found'}, status=status.HTTP_404_NOT_FOUND)
+
+    if request.method == 'GET':
+        assets = project.assets.all()
+        serializer = AssetSerializer(assets, many=True)
+        return Response(serializer.data)
+
+    elif request.method == 'POST':
+        if 'file' not in request.FILES:
+            return Response({'error': 'No file provided'}, status=status.HTTP_400_BAD_REQUEST)
+
+        file = request.FILES['file']
+        asset_type = request.POST.get('asset_type', 'unknown')
+        asset_key = request.POST.get('asset_key', 'unknown')
+
+        # 创建项目素材目录
+        project_media_dir = os.path.join('projects', str(project.id), asset_type)
+        full_dir = os.path.join(settings.MEDIA_ROOT, project_media_dir)
+        os.makedirs(full_dir, exist_ok=True)
+
+        # 保存文件
+        file_name = f"{asset_key}_{file.name}"
+        file_path = os.path.join(project_media_dir, file_name)
+        saved_path = default_storage.save(file_path, file)
+
+        # 获取图片尺寸
+        try:
+            img = Image.open(file)
+            width, height = img.size
+        except:
+            width, height = None, None
+
+        # 创建Asset记录
+        asset = Asset.objects.create(
+            project=project,
+            asset_type=asset_type,
+            asset_key=asset_key,
+            file_path=saved_path,
+            file_name=file_name,
+            width=width,
+            height=height
+        )
+
+        serializer = AssetSerializer(asset)
+        return Response(serializer.data, status=status.HTTP_201_CREATED)
+
+
+@api_view(['GET', 'DELETE'])
+def asset_detail(request, project_pk, asset_pk):
+    """获取或删除单个素材"""
+    try:
+        project = Project.objects.get(pk=project_pk)
+        asset = project.assets.get(pk=asset_pk)
+    except (Project.DoesNotExist, Asset.DoesNotExist):
+        return Response({'error': 'Asset not found'}, status=status.HTTP_404_NOT_FOUND)
+
+    if request.method == 'GET':
+        serializer = AssetSerializer(asset)
+        return Response(serializer.data)
+
+    elif request.method == 'DELETE':
+        # 删除文件
+        if asset.file_path:
+            file_full_path = os.path.join(settings.MEDIA_ROOT, asset.file_path)
+            if os.path.exists(file_full_path):
+                os.remove(file_full_path)
+
+        asset.delete()
+        return Response(status=status.HTTP_204_NO_CONTENT)

frontend/src/api/asset.js

@@ -0,0 +1,26 @@
+import axios from 'axios'
+
+const API_BASE = '/api'
+
+export async function getAssets(projectId) {
+  const response = await axios.get(`${API_BASE}/projects/${projectId}/assets/`)
+  return response.data
+}
+
+export async function uploadAsset(projectId, file, assetType, assetKey) {
+  const formData = new FormData()
+  formData.append('file', file)
+  formData.append('asset_type', assetType)
+  formData.append('asset_key', assetKey)
+
+  const response = await axios.post(`${API_BASE}/projects/${projectId}/assets/`, formData, {
+    headers: {
+      'Content-Type': 'multipart/form-data'
+    }
+  })
+  return response.data
+}
+
+export async function deleteAsset(projectId, assetId) {
+  await axios.delete(`${API_BASE}/projects/${projectId}/assets/${assetId}/`)
+}

frontend/src/components/AssetUploadDialog.vue

@@ -0,0 +1,154 @@
+<template>
+  <el-dialog
+    v-model="dialogVisible"
+    title="上传素材"
+    width="500px"
+    @close="handleClose"
+  >
+    <el-form :model="form" label-width="100px">
+      <el-form-item label="素材类型">
+        <el-select v-model="form.assetType" placeholder="选择素材类型">
+          <el-option label="花色图案" value="suit_symbol" />
+          <el-option label="JQK人像" value="face_card" />
+          <el-option label="大小王" value="joker" />
+          <el-option label="背面图案" value="back" />
+        </el-select>
+      </el-form-item>
+
+      <el-form-item label="素材标识">
+        <el-input
+          v-model="form.assetKey"
+          placeholder="如：spade, heart-J, big_joker"
+        />
+      </el-form-item>
+
+      <el-form-item label="选择文件">
+        <el-upload
+          ref="upload"
+          drag
+          :auto-upload="false"
+          :on-change="handleFileChange"
+          :limit="1"
+          :on-exceed="handleExceed"
+        >
+          <el-icon class="el-icon--upload"><upload-filled /></el-icon>
+          <div class="el-upload__text">
+            拖拽文件到此处或<em>点击上传</em>
+          </div>
+          <template #tip>
+            <div class="el-upload__tip">
+              支持 PNG, JPG, SVG 格式
+            </div>
+          </template>
+        </el-upload>
+      </el-form-item>
+    </el-form>
+
+    <template #footer>
+      <el-button @click="handleClose">取消</el-button>
+      <el-button
+        type="primary"
+        :loading="uploading"
+        :disabled="!canSubmit"
+        @click="handleSubmit"
+      >
+        上传
+      </el-button>
+    </template>
+  </el-dialog>
+</template>
+
+<script setup>
+import { ref, computed, watch } from 'vue'
+import { ElMessage } from 'element-plus'
+import { UploadFilled } from '@element-plus/icons-vue'
+import { uploadAsset } from '@/api/asset'
+
+const props = defineProps({
+  modelValue: Boolean,
+  projectId: String
+})
+
+const emit = defineEmits(['update:modelValue', 'upload-success'])
+const dialogVisible = ref(props.modelValue)
+const upload = ref(null)
+const uploading = ref(false)
+const selectedFile = ref(null)
+
+const form = ref({
+  assetType: 'suit_symbol',
+  assetKey: '',
+  file: null
+})
+
+const canSubmit = computed(() => {
+  return form.value.assetKey && selectedFile.value
+})
+
+watch(() => props.modelValue, (val) => {
+  dialogVisible.value = val
+})
+
+watch(dialogVisible, (val) => {
+  emit('update:modelValue', val)
+})
+
+function handleFileChange(file) {
+  selectedFile.value = file.raw
+}
+
+function handleExceed() {
+  ElMessage.warning('只能上传一个文件')
+}
+
+async function handleSubmit() {
+  if (!canSubmit.value) {
+    ElMessage.warning('请填写完整信息')
+    return
+  }
+
+  try {
+    uploading.value = true
+    await uploadAsset(
+      props.projectId,
+      selectedFile.value,
+      form.value.assetType,
+      form.value.assetKey
+    )
+
+    ElMessage.success('上传成功')
+    emit('upload-success')
+    handleClose()
+  } catch (error) {
+    ElMessage.error('上传失败')
+    console.error(error)
+  } finally {
+    uploading.value = false
+  }
+}
+
+function handleClose() {
+  dialogVisible.value = false
+  emit('update:modelValue', false)
+  // Reset form
+  form.value = {
+    assetType: 'suit_symbol',
+    assetKey: '',
+    file: null
+  }
+  selectedFile.value = null
+}
+</script>
+
+<style scoped>
+.el-upload__text {
+  color: #606266;
+  font-size: 14px;
+}
+
+.el-upload__tip {
+  color: #909399;
+  font-size: 12px;
+  margin-top: 8px;
+}
+</style>

frontend/src/templates/index.js

@@ -0,0 +1,108 @@
+const templates = [
+  {
+    id: 'classic',
+    name: '经典风格',
+    description: '标准扑克牌设计，传统花色和字体',
+    colors: {
+      spade: '#000000',
+      heart: '#FF0000',
+      club: '#000000',
+      diamond: '#FF0000',
+      background: '#FFFFFF'
+    },
+    defaultAssets: {
+      suitSymbols: {
+        spade: '/assets/default/spade.svg',
+        heart: '/assets/default/heart.svg',
+        club: '/assets/default/club.svg',
+        diamond: '/assets/default/diamond.svg'
+      },
+      numberFont: {
+        family: 'Times New Roman',
+        size: 48,
+        color: '#000000'
+      }
+    },
+    features: ['标准边框', '传统字体', '对称布局']
+  },
+  {
+    id: 'modern',
+    name: '现代简约',
+    description: '扁平化设计，简洁线条',
+    colors: {
+      spade: '#333333',
+      heart: '#E53935',
+      club: '#333333',
+      diamond: '#E53935',
+      background: '#FAFAFA'
+    },
+    defaultAssets: {
+      suitSymbols: {
+        spade: '/assets/modern/spade.svg',
+        heart: '/assets/modern/heart.svg',
+        club: '/assets/modern/club.svg',
+        diamond: '/assets/modern/diamond.svg'
+      },
+      numberFont: {
+        family: 'Arial',
+        size: 42,
+        color: '#333333'
+      }
+    },
+    features: ['无边框', '简约字体', '清爽设计']
+  },
+  {
+    id: 'cartoon',
+    name: '卡通风格',
+    description: 'Q版可爱人像，圆润花色图案',
+    colors: {
+      spade: '#4A4A4A',
+      heart: '#FF6B9D',
+      club: '#4A4A4A',
+      diamond: '#FF6B9D',
+      background: '#FFF9E6'
+    },
+    defaultAssets: {
+      suitSymbols: {
+        spade: '/assets/cartoon/spade.svg',
+        heart: '/assets/cartoon/heart.svg',
+        club: '/assets/cartoon/club.svg',
+        diamond: '/assets/cartoon/diamond.svg'
+      },
+      numberFont: {
+        family: 'Comic Sans MS',
+        size: 40,
+        color: '#4A4A4A'
+      }
+    },
+    features: ['圆润边框', '可爱字体', '彩色设计']
+  },
+  {
+    id: 'vintage',
+    name: '复古风格',
+    description: '复古色调和纹理，装饰性边框',
+    colors: {
+      spade: '#2C1810',
+      heart: '#8B4513',
+      club: '#2C1810',
+      diamond: '#8B4513',
+      background: '#F5DEB3'
+    },
+    defaultAssets: {
+      suitSymbols: {
+        spade: '/assets/vintage/spade.svg',
+        heart: '/assets/vintage/heart.svg',
+        club: '/assets/vintage/club.svg',
+        diamond: '/assets/vintage/diamond.svg'
+      },
+      numberFont: {
+        family: 'Georgia',
+        size: 44,
+        color: '#2C1810'
+      }
+    },
+    features: ['装饰边框', '复古字体', '纹理背景']
+  }
+]
+
+export default templates

frontend/src/utils/cardLayout.js

@@ -0,0 +1,128 @@
+const LAYOUT_POSITIONS = {
+  1: [
+    { x: 0.5, y: 0.5 }
+  ],
+  2: [
+    { x: 0.5, y: 0.25 },
+    { x: 0.5, y: 0.75 }
+  ],
+  3: [
+    { x: 0.5, y: 0.2 },
+    { x: 0.5, y: 0.5 },
+    { x: 0.5, y: 0.8 }
+  ],
+  4: [
+    { x: 0.3, y: 0.25 },
+    { x: 0.7, y: 0.25 },
+    { x: 0.3, y: 0.75 },
+    { x: 0.7, y: 0.75 }
+  ],
+  5: [
+    { x: 0.3, y: 0.2 },
+    { x: 0.7, y: 0.2 },
+    { x: 0.5, y: 0.5 },
+    { x: 0.3, y: 0.8 },
+    { x: 0.7, y: 0.8 }
+  ],
+  6: [
+    { x: 0.3, y: 0.2 },
+    { x: 0.7, y: 0.2 },
+    { x: 0.3, y: 0.5 },
+    { x: 0.7, y: 0.5 },
+    { x: 0.3, y: 0.8 },
+    { x: 0.7, y: 0.8 }
+  ],
+  7: [
+    { x: 0.3, y: 0.15 },
+    { x: 0.7, y: 0.15 },
+    { x: 0.5, y: 0.35 },
+    { x: 0.3, y: 0.55 },
+    { x: 0.7, y: 0.55 },
+    { x: 0.3, y: 0.85 },
+    { x: 0.7, y: 0.85 }
+  ],
+  8: [
+    { x: 0.3, y: 0.15 },
+    { x: 0.7, y: 0.15 },
+    { x: 0.5, y: 0.35 },
+    { x: 0.3, y: 0.55 },
+    { x: 0.7, y: 0.55 },
+    { x: 0.5, y: 0.65 },
+    { x: 0.3, y: 0.85 },
+    { x: 0.7, y: 0.85 }
+  ],
+  9: [
+    { x: 0.3, y: 0.15 },
+    { x: 0.7, y: 0.15 },
+    { x: 0.5, y: 0.35 },
+    { x: 0.2, y: 0.5 },
+    { x: 0.5, y: 0.5 },
+    { x: 0.8, y: 0.5 },
+    { x: 0.5, y: 0.65 },
+    { x: 0.3, y: 0.85 },
+    { x: 0.7, y: 0.85 }
+  ],
+  10: [
+    { x: 0.3, y: 0.15 },
+    { x: 0.7, y: 0.15 },
+    { x: 0.3, y: 0.35 },
+    { x: 0.7, y: 0.35 },
+    { x: 0.5, y: 0.5 },
+    { x: 0.3, y: 0.65 },
+    { x: 0.7, y: 0.65 },
+    { x: 0.3, y: 0.85 },
+    { x: 0.7, y: 0.85 }
+  ]
+}
+
+export function calculateSuitPositions(rank, cardWidth, cardHeight, symbolSize = 60) {
+  const positions = LAYOUT_POSITIONS[rank] || LAYOUT_POSITIONS[1]
+
+  return positions.map(pos => ({
+    x: pos.x * cardWidth - symbolSize / 2,
+    y: pos.y * cardHeight - symbolSize / 2,
+    width: symbolSize,
+    height: symbolSize
+  }))
+}
+
+export function getCornerPositions(cardWidth, cardHeight) {
+  return {
+    topLeft: { x: 50, y: 50 },
+    topRight: { x: cardWidth - 100, y: 50 },
+    bottomLeft: { x: 50, y: cardHeight - 100 },
+    bottomRight: { x: cardWidth - 100, y: cardHeight - 100 }
+  }
+}
+
+export function getSuitSymbol(suit) {
+  const symbols = {
+    spade: '♠',
+    heart: '♥',
+    club: '♣',
+    diamond: '♦'
+  }
+  return symbols[suit] || '♠'
+}
+
+export function getSuitColor(suit, templateColors) {
+  if (templateColors && templateColors[suit]) {
+    return templateColors[suit]
+  }
+
+  const colors = {
+    spade: '#000000',
+    heart: '#FF0000',
+    club: '#000000',
+    diamond: '#FF0000'
+  }
+  return colors[suit] || '#000000'
+}
+
+export function isRedSuit(suit) {
+  return suit === 'heart' || suit === 'diamond'
+}
+
+export function isBlackSuit(suit) {
+  return suit === 'spade' || suit === 'club'
+}

frontend/src/utils/symmetry.js

@@ -0,0 +1,81 @@
+import { fabric } from 'fabric'
+
+export async function createSymmetricalImage(originalImage, canvasWidth, canvasHeight) {
+  const imgWidth = originalImage.width
+  const imgHeight = originalImage.height
+  const halfHeight = imgHeight / 2
+
+  const topHalf = new fabric.Image(originalImage, {
+    clipPath: new fabric.Rect({
+      width: imgWidth,
+      height: halfHeight,
+      originX: 'left',
+      originY: 'top'
+    }),
+    top: 0,
+    scaleX: canvasWidth / imgWidth,
+    scaleY: (canvasHeight / 2) / halfHeight
+  })
+
+  const bottomHalf = new fabric.Image(originalImage, {
+    clipPath: new fabric.Rect({
+      width: imgWidth,
+      height: halfHeight,
+      originX: 'left',
+      originY: 'top',
+      top: halfHeight
+    }),
+    top: canvasHeight / 2,
+    scaleX: canvasWidth / imgWidth,
+    scaleY: -(canvasHeight / 2) / halfHeight,
+    flipY: true
+  })
+
+  const group = new fabric.Group([topHalf, bottomHalf], {
+    left: 0,
+    top: 0,
+    width: canvasWidth,
+    height: canvasHeight
+  })
+
+  return group
+}
+
+export async function loadAndProcessImage(imageUrl) {
+  return new Promise((resolve, reject) => {
+    fabric.Image.fromURL(imageUrl, (img) => {
+      if (!img) {
+        reject(new Error('Failed to load image'))
+        return
+      }
+      resolve(img)
+    }, { crossOrigin: 'anonymous' })
+  })
+}
+
+export function applySymmetryToFaceCard(canvas, imageUrl, cardWidth, cardHeight) {
+  return new Promise((resolve, reject) => {
+    fabric.Image.fromURL(imageUrl, async (originalImage) => {
+      if (!originalImage) {
+        reject(new Error('Failed to load image'))
+        return
+      }
+
+      const symmetricalGroup = await createSymmetricalImage(
+        originalImage.getElement(),
+        cardWidth - 100,
+        cardHeight - 100
+      )
+
+      symmetricalGroup.set({
+        left: 50,
+        top: 50,
+        selectable: true
+      })
+
+      canvas.add(symmetricalGroup)
+      canvas.renderAll()
+      resolve(symmetricalGroup)
+    }, { crossOrigin: 'anonymous' })
+  })
+}