package http

import (
	"dwelling-files/pkg/files"
	"dwelling-files/pkg/utils"
	"dwelling-files/web"
	"log"
	"net/http"
	"strings"

	"git.arav.su/Arav/httpr"
)

type FilesHandlers struct {
	directoryPath  string
	fileServer     http.Handler
	noFileHandling bool
}

func New(directoryPath *string, noFileHandling bool) *FilesHandlers {
	var fSrv http.Handler
	if noFileHandling {
		fSrv = nil
	} else {
		fSrv = http.FileServer(http.Dir(*directoryPath))
	}
	return &FilesHandlers{
		directoryPath:  *directoryPath,
		fileServer:     fSrv,
		noFileHandling: noFileHandling}
}

func (h *FilesHandlers) Index(w http.ResponseWriter, r *http.Request) {
	path := "/" + httpr.Param(r, "filepath")
	if !strings.HasSuffix(path, "/") {
		path += "/"
	}

	currentPath := files.CurrentPath(path)

	entries, stats, err := files.ScanDirectory(h.directoryPath+path, path)
	if err != nil {
		log.Println(err)
		Error(w, http.StatusNotFound, "", "", r.Referer())
		return
	}

	web.Index("Files", utils.MainSite(r.Host), currentPath, &stats, &entries, r, w)
}

func (h *FilesHandlers) File(w http.ResponseWriter, r *http.Request) {
	if h.noFileHandling {
		Error(w, http.StatusServiceUnavailable, "File handling is turned off.", "", r.Referer())
		return
	}
	r.URL.Path = httpr.Param(r, "filepath")
	h.fileServer.ServeHTTP(w, r)
}

func RobotsTxt(w http.ResponseWriter, r *http.Request) {
	fc, _ := web.AssetsGetFile("robots.txt")
	w.Write(fc)
}

func Error(w http.ResponseWriter, code int, reason, message, referer string) {
	w.WriteHeader(code)
	web.ErrorXXX("/ "+http.StatusText(code), reason, message, referer, code, w)
}