package com.qingcheng.controller;
import com.alibaba.dubbo.config.annotation.Reference;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.qingcheng.pojo.goods.Goods;
import com.qingcheng.pojo.goods.Sku;
import com.qingcheng.pojo.goods.Spu;
import com.qingcheng.service.goods.CategoryService;
import com.qingcheng.service.goods.SpuService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@RestController
@RequestMapping("/item")
public class ItemController {
@Reference
private SpuService spuService;
@Reference
private CategoryService categoryService;
@Value("${pagePath}")
private String pagePath;
@Autowired
private TemplateEngine templateEngine;
@GetMapping("/createPage")
public void createPage(String spuId){
//1.查询商品信息
Goods goods = spuService.findGoodsById(spuId);
// 获取spu信息
Spu spu = goods.getSpu();
// 获取sku列表
List<Sku> skuList = goods.getSkuList();
//查询商品分类
List<String> categoryList=new ArrayList<>();
categoryList.add( categoryService.findById(spu.getCategory1Id()).getName() );//一级分类
categoryList.add( categoryService.findById(spu.getCategory2Id()).getName() );//二级分类
categoryList.add( categoryService.findById(spu.getCategory3Id()).getName() );//三级分类
//sku地址列表
Map<String,String> urlMap=new HashMap<>();
for(Sku sku:skuList){
if("1".equals(sku.getStatus())){
String specJson = JSON.toJSONString( JSON.parseObject(sku.getSpec()), SerializerFeature.MapSortField);
urlMap.put(specJson,sku.getId()+".html");
}
}
//2.批量生成sku页面
for(Sku sku:skuList){
//(1) 创建上下文和数据模型
Context context=new Context();
Map<String,Object> dataModel= new HashMap<>();
dataModel.put("spu",spu);
dataModel.put("sku",sku);
dataModel.put("categoryList",categoryList);
dataModel.put("skuImages", sku.getImages().split(",") );//sku图片列表
dataModel.put("spuImages", spu.getImages().split(",") );//spu图片列表
Map paraItems= JSON.parseObject( spu.getParaItems());//参数列表
dataModel.put("paraItems",paraItems);
Map<String,String> specItems = (Map)JSON.parseObject(sku.getSpec());//规格列表 当前sku
dataModel.put("specItems",specItems);
//{"颜色":["天空之境","珠光贝母"],"内存":["8GB+64GB","8GB+128GB","8GB+256GB"]}
//{"颜色":[{ 'option':'天空之境',checked:true },{ 'option':'珠光贝母',checked:false }],.....}
Map<String,List> specMap = (Map)JSON.parseObject(spu.getSpecItems());//规格和规格选项
for(String key :specMap.keySet() ){ //循环规格
List<String> list = specMap.get(key);//["天空之境","珠光贝母"]
List<Map> mapList=new ArrayList<>();//新的集合 //[{ 'option':'天空之境',checked:true },{ 'option':'珠光贝母',checked:false }]
//循环规格选项
for(String value:list){
Map map=new HashMap();
map.put("option",value);//规格选项
if(specItems.get(key).equals(value) ){ // 如果和当前sku的规格相同，就是选中
map.put("checked",true);//是否选中
}else{
map.put("checked",false);//是否选中
}
Map<String,String> spec= (Map)JSON.parseObject(sku.getSpec()) ;//当前的Sku
spec.put(key,value);
String specJson = JSON.toJSONString(spec , SerializerFeature.MapSortField);
map.put("url",urlMap.get(specJson));
mapList.add(map);
}
specMap.put(key,mapList);//用新的集合替换原有的集合
}
dataModel.put("specMap" ,specMap);
context.setVariables(dataModel);
//（2）准备文件
File dir =new File(pagePath);
if( !dir.exists()){
dir.mkdirs();
}
File dest= new File(dir, sku.getId()+".html" );
//（3）生成页面
try {
PrintWriter writer=new PrintWriter( dest,"UTF-8");
templateEngine.process("item",context,writer );
System.out.println("生成页面："+sku.getId()+".html");
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
}
}
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