feat: implement Home view with image generation

imagecreator/frontend/src/api/images.ts

@@ -0,0 +1,24 @@
+import api from './index'
+
+export interface PromptOptimizeRequest {
+  prompt: string
+  mode: 'text2image' | 'image2image'
+  original_description?: string
+}
+
+export interface ImageGenerateRequest {
+  prompt: string
+  optimized_prompt: string
+  mode: 'text2image' | 'image2image'
+  model: string
+  input_image_b64?: string
+}
+
+export const imagesApi = {
+  optimizePrompt(data: PromptOptimizeRequest) {
+    return api.post<{ optimized_prompt: string }>('/images/optimize', data)
+  },
+  generateImage(data: ImageGenerateRequest) {
+    return api.post<{ image_url: string; model: string }>('/images/generate', data)
+  },
+}

imagecreator/frontend/src/views/Home.vue

@@ -0,0 +1,172 @@
+<template>
+  <div class="min-h-screen bg-gray-50">
+    <nav class="bg-white shadow">
+      <div class="max-w-7xl mx-auto px-4 py-4 flex justify-between items-center">
+        <h1 class="text-xl font-bold">ImageCreator</h1>
+        <div class="flex gap-4">
+          <router-link to="/" class="text-blue-500">生成</router-link>
+          <router-link to="/history" class="text-blue-500">历史</router-link>
+          <n-button size="small" @click="handleLogout">退出</n-button>
+        </div>
+      </div>
+    </nav>
+
+    <div class="max-w-4xl mx-auto px-4 py-8">
+      <n-tabs v-model:value="activeMode" type="segment">
+        <n-tab-pane name="text2image" tab="文生图" />
+        <n-tab-pane name="image2image" tab="图生图" />
+      </n-tabs>
+
+      <div class="mt-6 grid grid-cols-2 gap-6">
+        <div>
+          <n-card title="提示词输入">
+            <n-input
+              v-model:value="originalPrompt"
+              type="textarea"
+              placeholder="描述你想要生成的图片..."
+              :rows="4"
+            />
+            <div class="mt-4">
+              <n-button type="primary" block @click="handleOptimize" :loading="optimizing">
+                优化提示词
+              </n-button>
+            </div>
+            <div v-if="optimizedPrompt" class="mt-4">
+              <n-divider>优化后</n-divider>
+              <p class="text-gray-700 whitespace-pre-wrap">{{ optimizedPrompt }}</p>
+            </div>
+          </n-card>
+
+          <n-card v-if="activeMode === 'image2image'" title="上传参考图片" class="mt-4">
+            <n-upload
+              accept="image/*"
+              :max-size="10 * 1024 * 1024"
+              @change="handleImageUpload"
+              @error="handleUploadError"
+            >
+              <n-button>选择图片</n-button>
+            </n-upload>
+          </n-card>
+        </div>
+
+        <div>
+          <n-card title="生成结果">
+            <div v-if="generating" class="flex justify-center py-8">
+              <n-spin size="large" />
+            </div>
+            <div v-else-if="generatedImageUrl" class="text-center">
+              <img :src="generatedImageUrl" class="max-w-full rounded" alt="Generated" />
+              <n-button type="primary" class="mt-4" tag="a" :href="generatedImageUrl" download>
+                下载图片
+              </n-button>
+            </div>
+            <div v-else class="text-center text-gray-400 py-8">
+              生成的图片将显示在这里
+            </div>
+          </n-card>
+
+          <div class="mt-4">
+            <n-button
+              type="primary"
+              block
+              size="large"
+              @click="handleGenerate"
+              :disabled="!optimizedPrompt"
+              :loading="generating"
+            >
+              生成图片
+            </n-button>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref } from 'vue'
+import { useRouter } from 'vue-router'
+import { NCard, NInput, NButton, NTabs, NTabPane, NDivider, NSpin, NUpload, useMessage, useDialog } from 'naive-ui'
+import { useAuthStore } from '../stores/auth'
+import { imagesApi } from '../api/images'
+
+const router = useRouter()
+const message = useMessage()
+const authStore = useAuthStore()
+
+const activeMode = ref<'text2image' | 'image2image'>('text2image')
+const originalPrompt = ref('')
+const optimizedPrompt = ref('')
+const generatedImageUrl = ref('')
+const inputImageB64 = ref('')
+const optimizing = ref(false)
+const generating = ref(false)
+
+const handleLogout = () => {
+  authStore.logout()
+  router.push('/login')
+}
+
+const handleOptimize = async () => {
+  if (!originalPrompt.value.trim()) {
+    message.warning('请输入提示词')
+    return
+  }
+  optimizing.value = true
+  try {
+    const response = await imagesApi.optimizePrompt({
+      prompt: originalPrompt.value,
+      mode: activeMode.value,
+    })
+    optimizedPrompt.value = response.data.optimized_prompt
+  } catch (error) {
+    message.error('优化失败')
+  } finally {
+    optimizing.value = false
+  }
+}
+
+const handleImageUpload = (options: any) => {
+  const file = options.file.file
+  if (!file) return
+
+  const reader = new FileReader()
+  reader.onload = (e) => {
+    const result = e.target?.result as string
+    inputImageB64.value = result.split(',')[1] // Remove data URL prefix
+    message.success('图片上传成功')
+  }
+  reader.readAsDataURL(file)
+}
+
+const handleUploadError = () => {
+  message.error('图片上传失败')
+}
+
+const handleGenerate = async () => {
+  if (!optimizedPrompt.value) {
+    message.warning('请先优化提示词')
+    return
+  }
+
+  generating.value = true
+  generatedImageUrl.value = ''
+
+  try {
+    const response = await imagesApi.generateImage({
+      prompt: originalPrompt.value,
+      optimized_prompt: optimizedPrompt.value,
+      mode: activeMode.value,
+      model: 'gemini-2.5-flash-image',
+      input_image_b64: activeMode.value === 'image2image' ? inputImageB64.value : undefined,
+    })
+
+    // Construct full URL for image
+    generatedImageUrl.value = `/uploads/${response.data.image_url.split('/uploads/')[1]}`
+  } catch (error) {
+    message.error('生成失败')
+  } finally {
+    generating.value = false
+  }
+}
+</script>