/*jslint node: true*/

"use strict";

var fs = require('fs');

function errorPageHandler(err, req, res, next) {

var ldp = req.app.locals.ldp;

// If the user specifies this function

// then, they can customize the error programmatically

if (ldp.errorHandler) {

return ldp.errorHandler(err, req, res, next);

}

// If noErrorPages is set,

// then use built-in express default error handler

if (ldp.noErrorPages) {

return res

.status(err.status)

.send(err.message);

}

// Check if error page exists

var errorPage = ldp.errorPages + err.status.toString() + '.html';

fs.readFile(errorPage, 'utf8', function(readErr, text) {

if (readErr) {

return res

.status(err.status)

.send(err.message);

}

res.status(err.status);

res.header('Content-Type', 'text/html');

res.send(text);

});

}

exports.handler = errorPageHandler;