package recomapi

import (
	"fmt"
	"net/http"
	"strconv"
	"videoweb/pub/common/log"
	"videoweb/pub/common/srvdef"
	"videoweb/pub/common/utils"
)

func GetRecomItems(url string, key string, userId int64, writeBack string, size int64) (
	[]int64, *srvdef.SrvErr) {
	reqUrl := fmt.Sprintf("%s/api/recommend/%d?n=%d&write-back=%s", url, userId, size, writeBack)
	var resp []string
	header := map[string]string{"X-API-Key": key}
	code, err := utils.GetWithJResp(&resp, reqUrl, header, nil)
	if err != nil {
		log.Error("recomapi:GetRecomItems GetWithJResp failed",
			log.Any("reqUrl", reqUrl), log.E(err))
		return nil, srvdef.New(srvdef.Err, "", "")
	}
	if code != http.StatusOK {
		log.Error("recomapi:GetRecomItems GetWithJResp code error.",
			log.Any("reqUrl", reqUrl), log.Any("code", code))
		return nil, srvdef.New(srvdef.Err, "", "")
	}
	itemIds := make([]int64, 0)
	for _, v := range resp {
		id, err := strconv.ParseInt(v, 10, 64)
		if err == nil {
			itemIds = append(itemIds, id)
		}
	}
	return itemIds, nil
}