package server

import (
	"bytes"
	"errors"
	"fmt"
	"io"
	"local/router"
	"local/rssmon3/config"
	"local/storage"
	"log"
	"net/http"
	"regexp"
	"strings"
)

func (s *Server) Routes() error {
	handles := []struct {
		path    string
		handler http.HandlerFunc
	}{
		{path: fmt.Sprintf("/api/tag/%s", router.Wildcard), handler: s.tag},
	}
	for _, handle := range handles {
		if err := s.router.Add(handle.path, handle.handler); err != nil {
			return err
		}
	}
	return nil
}

func (s *Server) notFound(w http.ResponseWriter, r *http.Request) {
	http.NotFound(w, r)
	return
}

func (s *Server) userError(w http.ResponseWriter, r *http.Request, err error) {
	status := http.StatusBadRequest
	log.Printf("%d: %v", status, err)
	w.WriteHeader(status)
}

func (s *Server) error(w http.ResponseWriter, r *http.Request, err error) {
	status := http.StatusInternalServerError
	log.Printf("%d: %v", status, err)
	w.WriteHeader(status)
}

func (s *Server) tag(w http.ResponseWriter, r *http.Request) {
	foo := s.notFound
	switch r.Method {
	case "GET":
		foo = s.getFeedByTag
	}
	foo(w, r)
}

func (s *Server) getFeedByTag(w http.ResponseWriter, r *http.Request) {
	tag := regexp.MustCompile("^.*\\/").ReplaceAllString(r.URL.Path, "")
	log.Println(tag)
	s.error(w, r, errors.New("not impl"))
}

func (s *Server) auctions(w http.ResponseWriter, r *http.Request) {
	foo := http.NotFound
	r.ParseForm()
	switch strings.ToLower(r.Method) {
	case "get":
		foo = s.get
	}
	foo(w, r)
}

func (s *Server) get(w http.ResponseWriter, r *http.Request) {
	db := config.Values().DB
	if len(strings.Split(r.URL.Path, "/")) < 3 {
		s.notFound(w, r)
		return
	}
	key := strings.Split(r.URL.Path, "/")[2]
	log.Println("GET", key)
	value, err := db.Get(key)
	if err == storage.ErrNotFound {
		s.notFound(w, r)
		return
	}
	if err != nil {
		s.error(w, r, err)
		return
	}
	io.Copy(w, bytes.NewBuffer(value))
}