var createError = require('http-errors');
var eql = require('deep-equal');

module.exports = assert;

function assert(value, status, msg, opts) {
  if (value) return;
  throw createError(status, msg, opts);
}

assert.equal = function(a, b, status, msg, opts) {
  assert(a == b, status, msg, opts);
};

assert.notEqual = function(a, b, status, msg, opts) {
  assert(a != b, status, msg, opts);
};

assert.strictEqual = function(a, b, status, msg, opts) {
  assert(a === b, status, msg, opts);
};

assert.notStrictEqual = function(a, b, status, msg, opts) {
  assert(a !== b, status, msg, opts);
};

assert.deepEqual = function(a, b, status, msg, opts) {
  assert(eql(a, b), status, msg, opts);
};

assert.notDeepEqual = function(a, b, status, msg, opts) {
  assert(!eql(a, b), status, msg, opts);
};