263 lines
7.4 KiB
JavaScript
263 lines
7.4 KiB
JavaScript
const Router = require('koa-router');
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const fetch = require('node-fetch');
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const path = require('path');
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const fs = require('fs');
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const router = new Router();
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const AI_API_KEY = 'sk-7f5d6f370f824f2ab76480c01bb00d40';
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const AI_API_URL = 'https://dashscope.aliyuncs.com/compatible-mode/v1/chat/completions';
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router.post('/generate-product', async (ctx) => {
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try {
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const { imageUrl, keywords } = ctx.request.body;
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let prompt = '你是一个专业的便利店商品管理助手。';
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if (imageUrl) {
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prompt += `\n请分析这张商品图片:${imageUrl}`;
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}
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if (keywords) {
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prompt += `\n关键词:${keywords}`;
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}
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prompt += `
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请生成商品的详细信息,返回JSON格式,不要包含其他内容:
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{
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"name": "商品名称(简洁明了,2-10字)",
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"category": "商品分类(请从以下选择:饮料,零食,日用品,食品,生鲜,烟酒,其他)",
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"description": "商品详细描述(50-100字,突出产品特点)",
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"suggestedPrice": 建议售价(数字)
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}`;
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const response = await fetch(AI_API_URL, {
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method: 'POST',
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headers: {
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'Authorization': `Bearer ${AI_API_KEY}`,
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({
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model: 'qwen3.5-flash',
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messages: [
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{
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role: 'user',
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content: prompt
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}
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],
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temperature: 0.7,
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max_tokens: 500
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}),
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timeout: 30000
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});
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if (!response.ok) {
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const errorText = await response.text();
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console.error('Qwen API Error:', response.status, errorText);
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let errorMsg = 'AI 服务调用失败';
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if (response.status === 401) {
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errorMsg = 'API Key 无效,请检查密钥配置';
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} else if (response.status === 403) {
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errorMsg = 'API 调用被拒绝,请检查账户权限';
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} else if (response.status === 429) {
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errorMsg = 'API 调用次数超限,请稍后重试';
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} else if (response.status === 503) {
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errorMsg = 'AI 服务暂时不可用,请稍后重试';
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}
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ctx.status = response.status;
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ctx.body = {
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code: response.status,
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message: errorMsg
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};
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return;
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}
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const data = await response.json();
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const aiResponse = data.choices?.[0]?.message?.content;
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if (!aiResponse) {
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ctx.status = 500;
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ctx.body = {
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code: 500,
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message: 'AI 服务返回为空'
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};
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return;
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}
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const jsonMatch = aiResponse.match(/\{[\s\S]*\}/);
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if (!jsonMatch) {
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ctx.status = 500;
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ctx.body = {
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code: 500,
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message: '无法解析 AI 响应格式'
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};
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return;
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}
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const productInfo = JSON.parse(jsonMatch[0]);
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ctx.body = {
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code: 200,
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message: '生成成功',
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data: productInfo
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};
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} catch (error) {
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console.error('生成商品信息失败:', error);
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let errorMsg = '生成失败,请稍后重试';
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if (error.message.includes('timeout')) {
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errorMsg = 'AI 服务响应超时,请检查网络或稍后重试';
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} else if (error.message.includes('ENOTFOUND')) {
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errorMsg = '无法连接到 AI 服务,请检查网络设置';
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} else if (error.message.includes('ECONNRESET')) {
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errorMsg = 'AI 服务连接中断,请稍后重试';
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}
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ctx.status = 503;
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ctx.body = {
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code: 503,
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message: errorMsg
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};
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}
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});
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router.post('/recognize-product', async (ctx) => {
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try {
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const { imageBase64 } = ctx.request.body;
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if (!imageBase64) {
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ctx.status = 400;
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ctx.body = {
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code: 400,
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message: '请提供商品图片'
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};
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return;
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}
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const prompt = `你是一个专业的便利店商品识别助手。请分析这张商品图片,识别出商品信息。
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请返回JSON格式的商品信息,只返回一个最可能的商品,不要返回多个:
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{
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"name": "商品名称(根据图片识别,如果无法确定则返回空字符串)",
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"category": "商品分类(从以下选择:饮料,零食,日用品,食品,生鲜,烟酒,其他,如果无法确定则返回空字符串)",
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"description": "商品描述(根据图片识别,突出产品特点,如果无法确定则返回空字符串)",
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"suggestedPrice": 数字(根据市场价估算,如果无法确定则返回0),
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"confidence": 0到1之间的数字(识别置信度)
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}`;
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const imageUrl = `data:image/jpeg;base64,${imageBase64}`;
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console.log('Calling Qwen API with image...');
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const response = await fetch(AI_API_URL, {
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method: 'POST',
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headers: {
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'Authorization': `Bearer ${AI_API_KEY}`,
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({
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model: 'qwen3.7-max-2026-05-20',
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messages: [
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{
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role: 'user',
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content: [
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{
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type: 'image_url',
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image_url: {
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url: imageUrl
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}
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},
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{
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type: 'text',
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text: prompt
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}
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]
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}
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],
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temperature: 0.3,
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max_tokens: 500
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}),
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timeout: 60000
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});
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console.log('Qwen VL response status:', response.status);
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if (!response.ok) {
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const errorText = await response.text();
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console.error('Qwen VL API Error:', response.status, errorText);
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let errorMsg = 'AI 服务调用失败';
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if (response.status === 401) {
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errorMsg = 'API Key 无效,请检查密钥配置';
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} else if (response.status === 403) {
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errorMsg = 'API 调用被拒绝,请检查账户权限';
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} else if (response.status === 429) {
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errorMsg = 'API 调用次数超限,请稍后重试';
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} else if (response.status === 503) {
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errorMsg = 'AI 服务暂时不可用,请稍后重试';
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} else if (response.status === 404) {
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errorMsg = '模型不支持图片输入,正在尝试兼容模式...';
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}
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ctx.status = response.status;
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ctx.body = {
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code: response.status,
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message: errorMsg
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};
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return;
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}
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const data = await response.json();
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console.log('Qwen response data:', JSON.stringify(data, null, 2));
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const aiResponse = data.choices?.[0]?.message?.content;
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if (!aiResponse) {
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ctx.status = 500;
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ctx.body = {
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code: 500,
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message: 'AI 服务返回为空'
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};
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return;
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}
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const jsonMatch = aiResponse.match(/\{[\s\S]*\}/);
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if (!jsonMatch) {
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ctx.status = 500;
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ctx.body = {
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code: 500,
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message: '无法解析 AI 响应格式'
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};
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return;
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}
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const productInfo = JSON.parse(jsonMatch[0]);
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ctx.body = {
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code: 200,
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message: '识别成功',
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data: productInfo
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};
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} catch (error) {
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console.error('识别商品失败:', error);
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let errorMsg = '识别失败,请稍后重试';
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if (error.message.includes('timeout')) {
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errorMsg = 'AI 服务响应超时,请检查网络或稍后重试';
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} else if (error.message.includes('ENOTFOUND')) {
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errorMsg = '无法连接到 AI 服务,请检查网络设置';
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} else if (error.message.includes('ECONNRESET')) {
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errorMsg = 'AI 服务连接中断,请稍后重试';
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}
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ctx.status = 503;
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ctx.body = {
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code: 503,
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message: errorMsg
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};
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}
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});
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module.exports = router.routes(); |