package main

import (
	"html/template"
	"net/http"
	"path/filepath"
	"slices"
)

var nonDebugErrors []int = []int{
	http.StatusNotFound,
	http.StatusBadRequest,
	http.StatusTeapot,
	http.StatusUnauthorized,
}

func notFoundHandler(w http.ResponseWriter, r *http.Request) {
	sendError(w, http.StatusNotFound, "That page could not be found.")
}

func sendError(w http.ResponseWriter, code int, message string) {
	tmpl := template.Must(template.ParseFiles(filepath.Join(contentDir, "templates/layout.gohtml"), filepath.Join(contentDir, "templates/error.gohtml")))
	var data PageData
	if *debug || slices.Contains(nonDebugErrors, code) {
		data = PageData{
			Header:        config.HeaderData,
			StatusCode:    code,
			StatusMessage: message,
		}
	} else {
		data = PageData{
			Header:        config.HeaderData,
			StatusCode:    0,
			StatusMessage: "An unknown error has occurred.",
		}
	}
	w.WriteHeader(code)
	tmpl.ExecuteTemplate(w, "layout", data)
}