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

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

var aliceskA = [
     0x77,0x07,0x6d,0x0a,0x73,0x18,0xa5,0x7d
    ,0x3c,0x16,0xc1,0x72,0x51,0xb2,0x66,0x45
    ,0xdf,0x4c,0x2f,0x87,0xeb,0xc0,0x99,0x2a
    ,0xb1,0x77,0xfb,0xa5,0x1d,0xb9,0x2c,0x2a
];

var bobpkA = [
     0xde,0x9e,0xdb,0x7d,0x7b,0x7d,0xc1,0xb4
    ,0xd3,0x5b,0x61,0xc2,0xec,0xe4,0x35,0x37
    ,0x3f,0x83,0x43,0xc8,0x5b,0x78,0x67,0x4d
    ,0xad,0xfc,0x7e,0x14,0x6f,0x88,0x2b,0x4f
];

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 = [
     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 secretA = [
     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 nonce = Buffer.from(nonceA);
var plainText = Buffer.from(plainTextB);
var alicesk = Buffer.from(aliceskA);
var bobpk = Buffer.from(bobpkA);
var cipherText = Buffer.from(cipherTextA);
var secret = Buffer.from(secretA);

describe('crypto_box_easy', function() {
    it('crypto_box_easy should encrypt to known cipher text', function(done) {
        var cipherMsg = sodium.crypto_box_easy(plainText,nonce, bobpk, alicesk);
        if( !cipherMsg ) {
            should.fail();
        }
        assert.equal(cipherMsg.toString('hex'), cipherText.toString('hex'));
        done();
    });

    // Test bad params
    it('should fail on bad param 1', function(done) {
        var p = "";
        var n = nonce;
        var pk = bobpk
        var sk = alicesk;
        assert.throws(function() {
            var cipherMsg = sodium.crypto_box_easy(p, n, pk, sk);
        });

        p = 10;
        assert.throws(function() {
            var cipherMsg = sodium.crypto_box_easy(p, n, pk, sk);
        });
        done();
    });

    it('should fail on bad param 2', function(done) {
        var p = plainText;
        var n = "nonce";
        var pk = bobpk
        var sk = alicesk;
        assert.throws(function() {
            var cipherMsg = sodium.crypto_box_easy(p, n, pk, sk);
        });

        n = Buffer.allocUnsafe(10);
        assert.throws(function() {
            var cipherMsg = sodium.crypto_box_easy(p, n, pk, sk);
        });

        n = 10;
        assert.throws(function() {
            var cipherMsg = sodium.crypto_box_easy(p, n, pk, sk);
        });
        done();
    });

    it('should fail on bad param 3', function(done) {
        var p = plainText;
        var n = nonce;
        var pk = "bobpk"
        var sk = alicesk;
        assert.throws(function() {
            var cipherMsg = sodium.crypto_box_easy(p, n, pk, sk);
        });

        pk = Buffer.allocUnsafe(10);
        assert.throws(function() {
            var cipherMsg = sodium.crypto_box_easy(p, n, pk, sk);
        });

        pk = 10;
        assert.throws(function() {
            var cipherMsg = sodium.crypto_box_easy(p, n, pk, sk);
        });
        done();
    });

    it('should fail on bad param 4', function(done) {
        var p = plainText;
        var n = nonce;
        var pk = bobpk
        var sk = "alicesk";
        assert.throws(function() {
            var cipherMsg = sodium.crypto_box_easy(p, n, pk, sk);
        });

        sk = Buffer.allocUnsafe(10);
        assert.throws(function() {
            var cipherMsg = sodium.crypto_box_easy(p, n, pk, sk);
        });

        sk = 10;
        assert.throws(function() {
            var cipherMsg = sodium.crypto_box_easy(p, n, pk, sk);
        });
        done();
    });
});

describe('crypto_box_open_easy', function() {
    var sender = sodium.crypto_box_keypair();
    var receiver = sodium.crypto_box_keypair();

    // Encrypt
    var cipherMsg = sodium.crypto_box_easy(plainText, nonce, receiver.publicKey, sender.secretKey);

    it('crypto_box_easy/crypto_box_open_easy should encrypt/decrypt', function(done) {
        // Decrypt
        var plainMsg = sodium.crypto_box_open_easy(cipherMsg,nonce,sender.publicKey, receiver.secretKey);

        // We should get the same plainText!
        assert.deepEqual(plainMsg, plainText);
        done();
    });

    it('crypto_box_afternm should encrypt/decrypt', function(done) {
        // Create shared secret
        var secret = sodium.crypto_box_beforenm(sender.publicKey, receiver.secretKey);
        // Encrypt message, ensure we get the same cipherText!
        var cipherText = sodium.crypto_box_easy_afternm(plainText,nonce,secret);
        assert.deepEqual(cipherMsg, cipherText);

        // Decrypt cipherText, ensure we get the same plainText!
        var plainMsg = sodium.crypto_box_open_easy_afternm(cipherMsg,nonce,secret);
        assert.deepEqual(plainMsg, plainText);
        done();
    });

    // test bad params
    it('should fail on bad argument 1', function(done) {
        var ctxt = "cipherMsg";
        var n = nonce;
        var pk = sender.publicKey;
        var sk = receiver.privateKey;

        assert.throws(function() {
            var plainMsg = sodium.crypto_box_open_easy(ctxt,n,pk, sk);
        });

        ctxt = Buffer.allocUnsafe(10);
        assert.throws(function() {
            var plainMsg = sodium.crypto_box_open_easy(ctxt,n,pk, sk);
        });

        ctxt = 10;
        assert.throws(function() {
            var plainMsg = sodium.crypto_box_open_easy(ctxt,n,pk, sk);
        });

        done();
    });

    it('should fail on bad argument 2', function(done) {
        var ctxt = cipherMsg;
        var n = "nonce";
        var pk = sender.publicKey;
        var sk = receiver.privateKey;

        assert.throws(function() {
            var plainMsg = sodium.crypto_box_open_easy(ctxt,n,pk, sk);
        });

        n = Buffer.allocUnsafe(10);
        assert.throws(function() {
            var plainMsg = sodium.crypto_box_open_easy(ctxt,n,pk, sk);
        });

        n = 10;
        assert.throws(function() {
            var plainMsg = sodium.crypto_box_open_easy(ctxt,n,pk, sk);
        });

        done();
    });

    it('should fail on bad argument 3', function(done) {
        var ctxt = cipherMsg;
        var n = nonce;
        var pk = "sender.publicKey";
        var sk = receiver.privateKey;

        assert.throws(function() {
            var plainMsg = sodium.crypto_box_open_easy(ctxt,n,pk, sk);
        });

        pk = Buffer.allocUnsafe(10);
        assert.throws(function() {
            var plainMsg = sodium.crypto_box_open_easy(ctxt,n,pk, sk);
        });

        pk = 10;
        assert.throws(function() {
            var plainMsg = sodium.crypto_box_open_easy(ctxt,n,pk, sk);
        });

        done();
    });

    it('should fail on bad argument 4', function(done) {
        var ctxt = cipherMsg;
        var n = nonce;
        var pk = sender.publicKey;
        var sk = "receiver.privateKey";

        assert.throws(function() {
            var plainMsg = sodium.crypto_box_open_easy(ctxt,n,pk, sk);
        });

        sk = Buffer.allocUnsafe(10);
        assert.throws(function() {
            var plainMsg = sodium.crypto_box_open_easy(ctxt,n,pk, sk);
        });

        sk = 10;
        assert.throws(function() {
            var plainMsg = sodium.crypto_box_open_easy(ctxt,n,pk, sk);
        });

        done();
    });
});

