'use strict';

var Eckles = require('eckles');
var Rasha = require('rasha');
var Keypairs = {};

/*global Promise*/

Keypairs.generate = function (opts) {
  opts = opts || {};
  var kty = opts.kty || opts.type;
  if ('RSA' === kty) {
    return Rasha.generate(opts);
  }
  return Eckles.generate(opts);
};

Keypairs.import = function (opts) {
  return Eckles.import(opts.pem).catch(function () {
    return Rasha.import(opts.pem);
  });
};

Keypairs.export = function (opts) {
  return Promise.resolve().then(function () {
    if ('RSA' === opts.jwk.kty) {
      return Rasha.export(opts);
    } else {
      return Eckles.export(opts);
    }
  });
};

Keypairs.thumbprint = function (opts) {
  return Promise.resolve().then(function () {
    if ('RSA' === opts.jwk.kty) {
      return Rasha.thumbprint(opts);
    } else {
      return Eckles.thumbprint(opts);
    }
  });
};