package me.mofun.controller;


import me.mofun.entity.Product;
import me.mofun.entity.Producttype;
import me.mofun.entity.Spellbuyproduct;
import me.mofun.entity.pojo.ProductJSON;
import me.mofun.entity.vo.Pagination;
import me.mofun.service.IProducttypeService;
import me.mofun.service.ISpellbuyproductService;
import me.mofun.service.ISpellbuyrecordService;
import me.mofun.test.tree.MenuNode;
import me.mofun.util.ApplicationListenerImpl;
import me.mofun.util.PaginationUtil;
import me.mofun.util.StringUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.annotation.PostConstruct;
import java.util.ArrayList;
import java.util.List;

@Controller
@RequestMapping("/list")
public class ListController {
    private static final Logger logger = LoggerFactory.getLogger(ListController.class);
    private static final int PAGE_SIZE = 20;  // 常量定义为局部常量更合适

    @Autowired
    private ISpellbuyrecordService spellbuyrecordService;
    @Autowired
    private ISpellbuyproductService spellbuyproductService;
    @Autowired
    private IProducttypeService productTypeService;
    private static IProducttypeService theProductTypeService;

    /**
     * 首页产品列表展示
     */
    @GetMapping("/index")
    public String index(
            @RequestParam(required = false) String id,
            @RequestParam(required = false) String typeId,
            @RequestParam(required = false) String pages,
            @RequestParam(required = false, defaultValue = "1") Integer pageNo,
            Model model) {

        // 处理分页参数
        if (pages != null) {
            pageNo = Integer.parseInt(pages.split("_")[1]);
        }

        // 处理分类和品牌参数
        String tId = null;
        String brandId = null;
        String typeName = null;
        String brandName = null;

        if (StringUtil.isNotBlank(typeId)) {
            if (typeId.indexOf("b") != -1) {
                brandId = typeId.split("b")[1];
                tId = typeId.split("b")[0];
                typeName = StringUtil.isNotBlank(tId) ? 
                        productTypeService.getById(tId).getTypeName() :
                        productTypeService.getById("1000").getTypeName();
                brandName = productTypeService.findBrandById(brandId).getTypeName();
            } else {
                tId = typeId;
                typeName = productTypeService.getById(tId).getTypeName();
            }
        } else {
            typeName = productTypeService.getById("1000").getTypeName();
        }

        // 处理品牌列表
        List<Producttype> producttyList = productTypeService.listByProductList();
        List<Producttype> tList = productTypeService.listByBrand(tId);
        List<Producttype> brandList;
        int j = 0;

        for (int i = 0; i < tList.size(); i++) {
            if (StringUtil.isNotBlank(brandId) && 
                    Integer.parseInt(brandId) == tList.get(i).getTypeId()) {
                j = i;
            }
        }

        if (j > 16 && StringUtil.isNotBlank(brandId)) {
            brandList = new ArrayList<>();
            for (Producttype type : tList) {
                if (Integer.parseInt(brandId) == type.getTypeId()) {
                    brandList.add(type);
                }
            }
            for (Producttype type : tList) {
                if (Integer.parseInt(brandId) != type.getTypeId()) {
                    brandList.add(type);
                }
            }
        } else {
            brandList = productTypeService.listByBrand(tId);
        }

        // 处理产品列表数据
        List<ProductJSON> productList = new ArrayList<>();
        String pageString = "";
        int resultCount = 0;

        if ("hot20".equals(id)) {
            Pagination hotPage = spellbuyrecordService.ProductByTypeIdList(tId, brandId, "hot", pageNo, PAGE_SIZE);
            resultCount = hotPage.getResultCount();
            productList = convertToProductJSON((List<Object[]>) hotPage.getList());
            pageString = buildPageString(resultCount, pageNo, id, tId);
        } else if ("date20".equals(id)) {
            Pagination datePage = spellbuyrecordService.ProductByTypeIdList(tId, brandId, "date", pageNo, PAGE_SIZE);
            resultCount = datePage.getResultCount();
            productList = convertToProductJSON((List<Object[]>) datePage.getList());
            pageString = buildPageString(resultCount, pageNo, id, tId);
        } else if ("price20".equals(id)) {
            Pagination pricePage = spellbuyrecordService.ProductByTypeIdList(tId, brandId, "price", pageNo, PAGE_SIZE);
            resultCount = pricePage.getResultCount();
            productList = convertToProductJSON((List<Object[]>) pricePage.getList());
            pageString = buildPageString(resultCount, pageNo, id, tId);
        } else if ("priceAsc20".equals(id)) {
            Pagination pricePage = spellbuyrecordService.ProductByTypeIdList(tId, brandId, "priceAsc", pageNo, PAGE_SIZE);
            resultCount = pricePage.getResultCount();
            productList = convertToProductJSON((List<Object[]>) pricePage.getList());
            pageString = buildPageString(resultCount, pageNo, id, tId);
        } else if ("about20".equals(id)) {
            Pagination aboutPage = spellbuyrecordService.ProductByTypeIdList(tId, brandId, "about", pageNo, PAGE_SIZE);
            resultCount = aboutPage.getResultCount();
            productList = convertToProductJSON((List<Object[]>) aboutPage.getList());
            pageString = buildPageString(resultCount, pageNo, id, tId);
        } else if ("surplus20".equals(id)) {
            Pagination surplusPage = spellbuyrecordService.ProductByTypeIdList(tId, brandId, "surplus", pageNo, PAGE_SIZE);
            resultCount = surplusPage.getResultCount();
            productList = convertToProductJSON((List<Object[]>) surplusPage.getList());
            pageString = buildPageString(resultCount, pageNo, id, tId);
        }

        // 向视图传递数据
        model.addAttribute("productList", productList);
        model.addAttribute("producttyList", producttyList);
        model.addAttribute("brandList", brandList);
        model.addAttribute("typeName", typeName);
        model.addAttribute("brandName", brandName);
        model.addAttribute("pageString", pageString);
        model.addAttribute("resultCount", resultCount);

        return "index";
    }

    /**
     * 检查商品状态接口
     */
    @GetMapping("/isStatus")
    @ResponseBody
    public String isStatus(@RequestParam String id) {
        Spellbuyproduct spellbuyproduct = spellbuyproductService.findByFKProductId(id);
        if (spellbuyproduct.getSpStatus() == 1) {
            return "false";
        } else {
            int surplus = spellbuyproduct.getSpellbuyPrice() - spellbuyproduct.getSpellbuyCount();
            return surplus == 0 ? "false" : String.valueOf(surplus);
        }
    }

    /**
     * 获取首页左侧产品类目树
     */
    @GetMapping("/getProductTypeSubList")
    public String getProductTypeSubList(Model model) {
        List<MenuNode> menuNodeList = productTypeService.getAllProductTypeTree();
        logger.info("menuNodeList.size=" + menuNodeList.size());
        model.addAttribute("menuNodeList", menuNodeList);
        return "getMenuList";
    }

    /**
     * 初始化静态Service引用
     */
    @PostConstruct
    public void init() {
        if (this.productTypeService != null) {
            theProductTypeService = this.productTypeService;
        }
    }

    /**
     * 静态方法获取产品类型列表
     */
    public static List<MenuNode> getTypeSubList() {
        return theProductTypeService.getAllProductTypeTree();
    }

    /**
     * 转换对象数组为ProductJSON列表
     */
    private List<ProductJSON> convertToProductJSON(List<Object[]> sourceList) {
        List<ProductJSON> result = new ArrayList<>();
        for (Object[] item : sourceList) {
            ProductJSON productJSON = new ProductJSON();
            // 根据原代码逻辑，不同排序类型的数组元素顺序可能不同
            Spellbuyproduct spellbuyproduct = (Spellbuyproduct) item[0];
            Product product = (Product) item[1];

            productJSON.setCurrentBuyCount(spellbuyproduct.getSpellbuyCount());
            productJSON.setHeadImage(product.getHeadImage());
            productJSON.setProductId(spellbuyproduct.getFkProductId());
            productJSON.setProductName(product.getProductName());
            productJSON.setProductPrice(spellbuyproduct.getSpellbuyPrice());
            productJSON.setSinglePrice(spellbuyproduct.getSpSinglePrice());
            productJSON.setLogicURL(product.getLogicURL());
            productJSON.setProductTitle(product.getProductTitle());
            productJSON.setProductStyle(product.getStyle());

            result.add(productJSON);
        }
        return result;
    }

    /**
     * 构建分页HTML字符串
     */
    private String buildPageString(int resultCount, int pageNo, String id, String tId) {
        String baseUrl = ApplicationListenerImpl.sysConfigureJson.getWwwUrl() + "/list/" + id;
        if (tId != null && !tId.isEmpty()) {
            baseUrl += "/" + tId;
        }
        return PaginationUtil.getPaginationHtml(resultCount, PAGE_SIZE, pageNo, 2, 5, baseUrl + "/p_");
    }
}