package internal

import (
	"net/http"
	"path/filepath"

	"git.mills.io/prologic/useragent"
	"github.com/julienschmidt/httprouter"
)

func (s *Server) NotFoundHandler(w http.ResponseWriter, r *http.Request) {
	if r.Header.Get("Accept") == "application/json" {
		w.Header().Set("Content-Type", "application/json")
		http.Error(w, "Endpoint Not Found", http.StatusNotFound)
		return
	}

	w.WriteHeader(http.StatusNotFound)
	w.Write([]byte("404 Not Found"))
}

// ConfigHandler ...
func (s *Server) ConfigHandler() httprouter.Handle {
	configDir := filepath.Join(s.config.Data, wellknownPath)
	return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
		w.Header().Set("Accept-Encoding", "br, gzip, deflate")
		w.Header().Set("X-Salty-Accept-Encoding", "br, gzip, deflate")
		http.ServeFile(w, r, filepath.Join(configDir, p.ByName("config")))
	}
}

// IndexHandler ...
func (s *Server) IndexHandler() httprouter.Handle {
	return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
		ua := useragent.Parse(r.UserAgent())
		if ua != nil && ua.Type == useragent.Browser {
			http.Redirect(w, r, "/app/", http.StatusFound)
		}
	}
}

// InboxHandler ...
func (s *Server) InboxHandler() httprouter.Handle {
	return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
		// TODO: Implement filtering / blocking at the broker level
		s.bus.ServeHTTP(w, r)
	}
}