var Blockheader = require('../lib/blockheader');
var Block = require('../lib/block');
var BufferWriter = require('../lib/bufferwriter');
var BufferReader = require('../lib/bufferreader');
var Varint = require('../lib/varint');
var should = require('chai').should();
var Transaction = require('../lib/transaction');

describe('Block', function() {
  
  it('should make a new block', function() {
    var block = new Block();
    should.exist(block);
    block = Block();
    should.exist(block);
  });

  var txidhex = '8c9aa966d35bfeaf031409e0001b90ccdafd8d859799eb945a3c515b8260bcf2';
  var txhex = '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';
  var txbuf = new Buffer(txhex, 'hex');
  var tx = Transaction().fromBuffer(txbuf);
  var magicnum = 0xd9b4bef9;
  var blocksize = 50;
  bhhex = '0100000005050505050505050505050505050505050505050505050505050505050505050909090909090909090909090909090909090909090909090909090909090909020000000300000004000000';
  bhbuf = new Buffer(bhhex, 'hex');
  var bh = Blockheader().fromBuffer(bhbuf);
  var txsvi = Varint(1);
  var txs = [Transaction().fromBuffer(txbuf)];
  var block = Block().set({
    magicnum: magicnum,
    blocksize: blocksize,
    blockheader: bh,
    txsvi: txsvi,
    txs: txs
  });
  var blockhex = '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';
  var blockbuf = new Buffer(blockhex, 'hex');

  describe('#set', function() {

    it('should set these known values', function() {
      var block = Block().set({
        magicnum: magicnum,
        blocksize: blocksize,
        blockheader: bh,
        txsvi: txsvi,
        txs: txs
      });
      should.exist(block.magicnum);
      should.exist(block.blocksize);
      should.exist(block.blockheader);
      should.exist(block.txsvi);
      should.exist(block.txs);
    });
    
  });

  describe('#fromJSON', function() {

    it('should set these known values', function() {
      var block = Block().set({
        magicnum: magicnum,
        blocksize: blocksize,
        blockheader: bh.toJSON(),
        txsvi: txsvi.toJSON(),
        txs: [txs[0].toJSON()]
      });
      should.exist(block.magicnum);
      should.exist(block.blocksize);
      should.exist(block.blockheader);
      should.exist(block.txsvi);
      should.exist(block.txs);
    });
    
  });

  describe('#toJSON', function() {

    it('should recover these known values', function() {
      var json = block.toJSON();
      should.exist(json.magicnum);
      should.exist(json.blocksize);
      should.exist(json.blockheader);
      should.exist(json.txsvi);
      should.exist(json.txs);
    });
    
  });

  describe('#fromBuffer', function() {
    
    it('should make a block from this known buffer', function() {
      var block = Block().fromBuffer(blockbuf);
      block.toBuffer().toString('hex').should.equal(blockhex);
    });

  });

  describe('#fromBufferReader', function() {
    
    it('should make a block from this known buffer', function() {
      var block = Block().fromBufferReader(BufferReader(blockbuf));
      block.toBuffer().toString('hex').should.equal(blockhex);
    });

  });

  describe('#toBuffer', function() {
    
    it('should recover a block from this known buffer', function() {
      var block = Block().fromBuffer(blockbuf);
      block.toBuffer().toString('hex').should.equal(blockhex);
    });

  });

  describe('#toBufferWriter', function() {
    
    it('should recover a block from this known buffer', function() {
      var block = Block().fromBuffer(blockbuf);
      block.toBufferWriter().concat().toString('hex').should.equal(blockhex);
    });

  });

});