MTP20_IF/controllers/hsby/hsby.go

package hsby

import (
	"mtp2_if/global/app"
	"mtp2_if/global/e"
	"mtp2_if/logger"
	"mtp2_if/models"
	"net/http"
	"sort"

	"github.com/gin-gonic/gin"
)

// QueryTopGoodsReq 查询热门商品列表请求参数
type QueryTopGoodsReq struct {
	app.PageInfo
	MarketID       int `form:"marketID" binding:"required"`
	DescProvinceID int `form:"descProvinceID"`
	DescCityID     int `form:"descCityID"`
}

// QueryTopGoods 查询热门商品列表
// @Summary 查询热门商品列表
// @Description 说明：查询结果已按Hotindex（景点热度）从大到小排序
// @Produce json
// @Security ApiKeyAuth
// @Param page query int false "页码"
// @Param pagesize query int false "每页条数"
// @Param marketID query int true "市场ID"
// @Param DescProvinceID query int false "目的地(省)ID"
// @Param DescCityID query int false "目的地(市)ID"
// @Success 200 {object} models.TopGoods
// @Failure 500 {object} app.Response
// @Router /HSBY/QueryTopGoods [get]
// @Tags 定制【海商报业】
func QueryTopGoods(c *gin.Context) {
	appG := app.Gin{C: c}

	// 获取请求参数
	var req QueryTopGoodsReq
	if err := appG.C.ShouldBindQuery(&req); err != nil {
		logger.GetLogger().Errorf("QueryTopGoods failed: %s", err.Error())
		appG.Response(http.StatusBadRequest, e.INVALID_PARAMS, nil)
		return
	}

	// 获取数据
	topGoodses, err := models.GetHsbyTopGoods(req.MarketID, req.DescProvinceID, req.DescCityID)
	if err != nil {
		// 查询失败
		logger.GetLogger().Errorf("QueryTopGoods failed: %s", err.Error())
		appG.Response(http.StatusBadRequest, e.ERROR_QUERY_FAIL, nil)
		return
	}

	// 排序
	sort.Slice(topGoodses, func(i int, j int) bool {
		return topGoodses[i].Hotindex > topGoodses[j].Hotindex
	})

	// 分页
	total := len(topGoodses)
	if req.PageSize > 0 {
		rstByPage := make([]models.TopGoods, 0)
		// 开始上标
		start := req.Page * req.PageSize
		// 结束下标
		end := start + req.PageSize

		if start <= len(topGoodses) {
			// 判断结束下标是否越界
			if end > len(topGoodses) {
				end = len(topGoodses)
			}
			rstByPage = topGoodses[start:end]
		} else {
			rstByPage = topGoodses[0:0]
		}

		topGoodses = rstByPage
	}

	// 查询成功返回
	if req.PageSize > 0 {
		logger.GetLogger().Debugln("QueryTopGoods successed: %v", topGoodses)
		appG.ResponseByPage(http.StatusOK, e.SUCCESS, topGoodses, app.PageInfo{Page: req.Page, PageSize: req.PageSize, Total: total})
	} else {
		logger.GetLogger().Debugln("QueryTopGoods successed: %v", topGoodses)
		appG.Response(http.StatusOK, e.SUCCESS, topGoodses)
	}
}