package httpserver

import (
	"net/http"
	"os"
	"path/filepath"
	"strings"
)

func (s *Server) appFileServer() http.Handler {
	files := http.FileServer(http.Dir(s.config.Web.DistDir))
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		cleanPath := filepath.Clean(strings.TrimPrefix(r.URL.Path, "/"))
		if cleanPath == "." {
			cleanPath = "index.html"
		}

		target := filepath.Join(s.config.Web.DistDir, cleanPath)
		if info, err := os.Stat(target); err == nil && !info.IsDir() {
			files.ServeHTTP(w, r)
			return
		}

		http.ServeFile(w, r, filepath.Join(s.config.Web.DistDir, "index.html"))
	})
}