/**
 * Created by bmf on 10/31/13.
 */
"use strict";

var assert = require('assert');
var crypto = require('crypto');
var sodium = require('../build/Release/sodium');


var keyA = [
    0x1b,0x27,0x55,0x64,0x73,0xe9,0x85,0xd4,
    0x62,0xcd,0x51,0x19,0x7a,0x9a,0x46,0xc7,
    0x60,0x09,0x54,0x9e,0xac,0x64,0x74,0xf2,
    0x06,0xc4,0xee,0x08,0x44,0xf6,0x83,0x89
];

var nonceA = [
    0x69,0x69,0x6e,0xe9,0x55,0xb6,0x2b,0x73,
    0xcd,0x62,0xbd,0xa8,0x75,0xfc,0x73,0xd6,
    0x82,0x19,0xe0,0x03,0x6b,0x7a,0x0b,0x37
];

var plainTextA = [
        0,   0,   0,   0,   0,   0,   0,   0
    ,   0,   0,   0,   0,   0,   0,   0,   0
    ,   0,   0,   0,   0,   0,   0,   0,   0
    ,   0,   0,   0,   0,   0,   0,   0,   0
    ,0xbe,0x07,0x5f,0xc5,0x3c,0x81,0xf2,0xd5
    ,0xcf,0x14,0x13,0x16,0xeb,0xeb,0x0c,0x7b
    ,0x52,0x28,0xc5,0x2a,0x4c,0x62,0xcb,0xd4
    ,0x4b,0x66,0x84,0x9b,0x64,0x24,0x4f,0xfc
    ,0xe5,0xec,0xba,0xaf,0x33,0xbd,0x75,0x1a
    ,0x1a,0xc7,0x28,0xd4,0x5e,0x6c,0x61,0x29
    ,0x6c,0xdc,0x3c,0x01,0x23,0x35,0x61,0xf4
    ,0x1d,0xb6,0x6c,0xce,0x31,0x4a,0xdb,0x31
    ,0x0e,0x3b,0xe8,0x25,0x0c,0x46,0xf0,0x6d
    ,0xce,0xea,0x3a,0x7f,0xa1,0x34,0x80,0x57
    ,0xe2,0xf6,0x55,0x6a,0xd6,0xb1,0x31,0x8a
    ,0x02,0x4a,0x83,0x8f,0x21,0xaf,0x1f,0xde
    ,0x04,0x89,0x77,0xeb,0x48,0xf5,0x9f,0xfd
    ,0x49,0x24,0xca,0x1c,0x60,0x90,0x2e,0x52
    ,0xf0,0xa0,0x89,0xbc,0x76,0x89,0x70,0x40
    ,0xe0,0x82,0xf9,0x37,0x76,0x38,0x48,0x64
    ,0x5e,0x07,0x05
];

var plainTextB = [
     0xbe,0x07,0x5f,0xc5,0x3c,0x81,0xf2,0xd5
    ,0xcf,0x14,0x13,0x16,0xeb,0xeb,0x0c,0x7b
    ,0x52,0x28,0xc5,0x2a,0x4c,0x62,0xcb,0xd4
    ,0x4b,0x66,0x84,0x9b,0x64,0x24,0x4f,0xfc
    ,0xe5,0xec,0xba,0xaf,0x33,0xbd,0x75,0x1a
    ,0x1a,0xc7,0x28,0xd4,0x5e,0x6c,0x61,0x29
    ,0x6c,0xdc,0x3c,0x01,0x23,0x35,0x61,0xf4
    ,0x1d,0xb6,0x6c,0xce,0x31,0x4a,0xdb,0x31
    ,0x0e,0x3b,0xe8,0x25,0x0c,0x46,0xf0,0x6d
    ,0xce,0xea,0x3a,0x7f,0xa1,0x34,0x80,0x57
    ,0xe2,0xf6,0x55,0x6a,0xd6,0xb1,0x31,0x8a
    ,0x02,0x4a,0x83,0x8f,0x21,0xaf,0x1f,0xde
    ,0x04,0x89,0x77,0xeb,0x48,0xf5,0x9f,0xfd
    ,0x49,0x24,0xca,0x1c,0x60,0x90,0x2e,0x52
    ,0xf0,0xa0,0x89,0xbc,0x76,0x89,0x70,0x40
    ,0xe0,0x82,0xf9,0x37,0x76,0x38,0x48,0x64
    ,0x5e,0x07,0x05
];

var cipherTextA = [
     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
    ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
    ,0xf3,0xff,0xc7,0x70,0x3f,0x94,0x00,0xe5
    ,0x2a,0x7d,0xfb,0x4b,0x3d,0x33,0x05,0xd9
    ,0x8e,0x99,0x3b,0x9f,0x48,0x68,0x12,0x73
    ,0xc2,0x96,0x50,0xba,0x32,0xfc,0x76,0xce
    ,0x48,0x33,0x2e,0xa7,0x16,0x4d,0x96,0xa4
    ,0x47,0x6f,0xb8,0xc5,0x31,0xa1,0x18,0x6a
    ,0xc0,0xdf,0xc1,0x7c,0x98,0xdc,0xe8,0x7b
    ,0x4d,0xa7,0xf0,0x11,0xec,0x48,0xc9,0x72
    ,0x71,0xd2,0xc2,0x0f,0x9b,0x92,0x8f,0xe2
    ,0x27,0x0d,0x6f,0xb8,0x63,0xd5,0x17,0x38
    ,0xb4,0x8e,0xee,0xe3,0x14,0xa7,0xcc,0x8a
    ,0xb9,0x32,0x16,0x45,0x48,0xe5,0x26,0xae
    ,0x90,0x22,0x43,0x68,0x51,0x7a,0xcf,0xea
    ,0xbd,0x6b,0xb3,0x73,0x2b,0xc0,0xe9,0xda
    ,0x99,0x83,0x2b,0x61,0xca,0x01,0xb6,0xde
    ,0x56,0x24,0x4a,0x9e,0x88,0xd5,0xf9,0xb3
    ,0x79,0x73,0xf6,0x22,0xa4,0x3d,0x14,0xa6
    ,0x59,0x9b,0x1f,0x65,0x4c,0xb4,0x5a,0x74
    ,0xe3,0x55,0xa5
];

var key = Buffer.from(keyA);
var nonce = Buffer.from(nonceA);
var plainText = Buffer.from(plainTextB);
var cipherText = Buffer.from(cipherTextA);
var cipherTextEasy = cipherText.slice(16, cipherText.length);

describe('Secretbox', function() {
    it('crypto_secretbox should return a buffer', function(done) {
        var r = sodium.crypto_secretbox(plainText,nonce,key);
        assert.deepEqual(r, cipherText);
        done();
    });

    it('crypto_secretbox/crypto_secretbox_open should encrypt/decrypt', function(done) {
        //var plainMsg = crypto.randomBytes(1000);
        var cipherMsg = sodium.crypto_secretbox(plainText,nonce,key);
        var plainMsg = sodium.crypto_secretbox_open(cipherMsg,nonce,key);
        assert.deepEqual(plainMsg, plainText);
        done();
    });
});

describe('Secretbox_easy', function() {
    it('crypto_secretbox_easy should return a buffer', function(done) {
        var r = sodium.crypto_secretbox_easy(plainText,nonce,key);
        assert.deepEqual(r, cipherTextEasy);
        done();
    });

    it('crypto_secretbox_easy/crypto_secretbox_open_easy should encrypt/decrypt', function(done) {
        //var plainMsg = crypto.randomBytes(1000);
        var cipherMsg = sodium.crypto_secretbox_easy(plainText,nonce,key);
        var plainMsg = sodium.crypto_secretbox_open_easy(cipherMsg,nonce,key);
        assert.deepEqual(plainMsg, plainText);
        done();
    });
});

function method_parameter_types (name, fn, good, bad) {
    describe(name + ' verify parameters', function () {
        good.forEach(function(v, i) {
            bad.forEach(function (bad) {
                var input = good.slice()
                input[i] = bad
                it('bad param '+(i+1)+' ' + typeof bad, function (done) {

                     assert.throws(function() {
                        var cipherMsg = fn.apply(null, input);
                    });
                    done();

                });
            });
        });
    });
}

var areBuffers = [plainText, nonce, key]
var notBuffers = [1, 'hello', null, true]
var nonceAndKey = [nonce, key]
var smallBuffers = [Buffer.allocUnsafe(2), Buffer.allocUnsafe(12)]

;[
    'crypto_secretbox',
    'crypto_secretbox_easy',
    'crypto_secretbox_open',
    'crypto_secretbox_open_easy',
].forEach(function (name) {
    method_parameter_types(
        name,
        sodium[name],
        areBuffers,
        notBuffers
    )
    method_parameter_types(
        name,
        sodium[name].bind(null, plainText),
        nonceAndKey,
        smallBuffers
    )

})