func newRecommender() recommend.Recommender {
var categoryList data.CategoryList
if flagCategoryFile == "" {
list, err := crawler.GetCategoryList()
if err != nil {
glog.Fatalf("Failed to crawl category list: %v", err)
}
categoryList = list
} else {
categoryList = loadCategoryFile()
}
return recommend.NewRandomRecommender(categoryList, ImgDir)
}
func main() {
if flagCategory {
categoryList, err := crawler.GetCategoryList()
if err != nil {
glog.Fatalf("Failed to crawl category list: %v", err)
}
printJson(categoryList)
return
}
if flagRecommend {
printJson(newRecommender().Do())
return
}
// CLI code paths must be at above.
if flagWeb {
http.Handle("/img/", app.ImgHandler(path.Dir(ImgDir), http.FileServer(http.Dir(path.Dir(ImgDir)))))
http.HandleFunc("/", app.Handler(newRecommender()))
glog.Infof(fmt.Sprintf("Starting a web server at localhost:%d", flagPort))
glog.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", flagPort), http.DefaultServeMux))
}
}