'use strict';

var should = require('should');
var sinon = require('sinon');
var BlockController = require('../lib/blocks');
var bitcore = require('bitcore');
var _ = require('lodash');

var blocks = {
  '0000000000000afa0c3c0afd450c793a1e300ec84cbe9555166e06132f19a8f7': '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',
  '000000000008fbb2e358e382a6f6948b2da24563bba183af447e6e2542e8efc7': '0300000041c49521c6106debe1221077ca9e71850e3c328037e5e98fbd0600000000000082b3a56da828618b1b7b103763e3c21c38c9536ce185ddd4aebdcd627645a878fb96e355ffff001d192907730101000000010000000000000000000000000000000000000000000000000000000000000000ffffffff2803bf25081b4d696e656420627920416e74506f6f6c202bde53072055e396fb010300000099050000ffffffff01807c814a000000001976a9144c5220c58749e5474ec4e5bbb0c2cc0342c6f44488ac00000000',
  '00000000000006bd8fe9e53780323c0e85719eca771022e1eb6d10c62195c441': '030000004705096ec15ee742e9c14aee22f5f30cb568a0817b4a6c1ec4b9010000000000afb4442dbd55dcc8c86c94dc84ca0d130aeade144623fc0e47849343087067204792e35567f20c1a4b773d0f0101000000010000000000000000000000000000000000000000000000000000000000000000ffffffff2803be25081b4d696e656420627920416e74506f6f6c202bde53072055e392470100000000aba10000ffffffff01807c814a000000001976a9144c5220c58749e5474ec4e5bbb0c2cc0342c6f44488ac00000000'
};

var blockIndexes = {
  '0000000000000afa0c3c0afd450c793a1e300ec84cbe9555166e06132f19a8f7': { 
    hash: '0000000000000afa0c3c0afd450c793a1e300ec84cbe9555166e06132f19a8f7',
    chainWork: '0000000000000000000000000000000000000000000000054626b1839ade284a',
    prevHash: '00000000000001a55f3214e9172eb34b20e0bc5bd6b8007f3f149fca2c8991a4',
    height: 533974 
  },
  '000000000008fbb2e358e382a6f6948b2da24563bba183af447e6e2542e8efc7': { 
    hash: '000000000008fbb2e358e382a6f6948b2da24563bba183af447e6e2542e8efc7',
    chainWork: '00000000000000000000000000000000000000000000000544ea52e1575ca753',
    prevHash: '00000000000006bd8fe9e53780323c0e85719eca771022e1eb6d10c62195c441',
    height: 533951 
  },
  '00000000000006bd8fe9e53780323c0e85719eca771022e1eb6d10c62195c441': {
    hash: '00000000000006bd8fe9e53780323c0e85719eca771022e1eb6d10c62195c441',
    chainWork: '00000000000000000000000000000000000000000000000544ea52e0575ba752',
    prevHash: '000000000001b9c41e6c4a7b81a068b50cf3f522ee4ac1e942e75ec16e090547',
    height: 533950 
  },
  533974: { 
    hash: '0000000000000afa0c3c0afd450c793a1e300ec84cbe9555166e06132f19a8f7',
    chainWork: '0000000000000000000000000000000000000000000000054626b1839ade284a',
    prevHash: '00000000000001a55f3214e9172eb34b20e0bc5bd6b8007f3f149fca2c8991a4',
    height: 533974 
  }
};

describe('Blocks', function() {
  describe('/blocks/:blockHash route', function() {
    var insight = {
      "hash": "0000000000000afa0c3c0afd450c793a1e300ec84cbe9555166e06132f19a8f7",
      "confirmations": 119,
      "size": 1011,
      "height": 533974,
      "version": 536870919,
      "merkleroot": "b06437355844b8178173f3e18ca141472e4b0861daa81ef0f701cf9e51f0283e",
      "tx": [
          "25a988e54b02e0e5df146a0f8fa7b9db56210533a9f04bdfda5f4ceb6f77aadd",
          "b85334bf2df35c6dd5b294efe92ffc793a78edff75a2ca666fc296ffb04bbba0",
          "2e01c7a4a0e335112236b711c4aaddd02e8dc59ba2cda416e8f80ff06dddd7e1"
      ],
      "time": 1440987503,
      "nonce": 1868753784,
      "bits": "1a0cf267",
      "difficulty": 1295829.93087696,
      "chainwork": "0000000000000000000000000000000000000000000000054626b1839ade284a",
      "previousblockhash": "00000000000001a55f3214e9172eb34b20e0bc5bd6b8007f3f149fca2c8991a4",
      "nextblockhash": "000000000001e866a8057cde0c650796cb8a59e0e6038dc31c69d7ca6649627d",
      "reward": 12.5,
      "isMainChain": true
    };

    var bitcoreBlock = bitcore.Block.fromBuffer(new Buffer(blocks['0000000000000afa0c3c0afd450c793a1e300ec84cbe9555166e06132f19a8f7'], 'hex'));

    var todos = {
      difficulty: 1295829.93087696,
      nextblockhash: '000000000001e866a8057cde0c650796cb8a59e0e6038dc31c69d7ca6649627d',
      reward: 12.5
    };

    var node = {
      getBlock: sinon.stub().callsArgWith(1, null, bitcoreBlock),
      services: {
        bitcoind: {
          getBlockIndex: sinon.stub().returns(blockIndexes['0000000000000afa0c3c0afd450c793a1e300ec84cbe9555166e06132f19a8f7']),
          isMainChain: sinon.stub().returns(true)
        },
        db: {
          tip: {
            __height: 534092
          }
        }
      }
    };
    

    it('block data should be correct', function(done) {
      var blocks = new BlockController(node);
      var req = {};
      var res = {};
      var next = function() {
        should.exist(req.block);
        var block = _.extend(req.block, todos);
        should(block).eql(insight);
        done();
      };

      var hash = '0000000000000afa0c3c0afd450c793a1e300ec84cbe9555166e06132f19a8f7';

      blocks.block(req, res, next, hash);
    });
  });

  describe('/blocks route', function() {

    var insight = {
      "blocks": [
        {
          "height": 533951,
          "size": 206,
          "hash": "000000000008fbb2e358e382a6f6948b2da24563bba183af447e6e2542e8efc7",
          "time": 1440978683,
          "txlength": 1,
          "poolInfo": {}
        },
        {
          "height": 533950,
          "size": 206,
          "hash": "00000000000006bd8fe9e53780323c0e85719eca771022e1eb6d10c62195c441",
          "time": 1440977479,
          "txlength": 1,
          "poolInfo": {}
        }
      ],
      "length": 2,
      "pagination": {}
    };

    var stub = sinon.stub();
    stub.onFirstCall().callsArgWith(1, null, bitcore.Block.fromBuffer(blocks['000000000008fbb2e358e382a6f6948b2da24563bba183af447e6e2542e8efc7'], 'hex'));
    stub.onSecondCall().callsArgWith(1, null, bitcore.Block.fromBuffer(blocks['00000000000006bd8fe9e53780323c0e85719eca771022e1eb6d10c62195c441'], 'hex'))

    var node = {
      getBlock: stub,
      services: {
        bitcoind: {
          getBlockIndex: function(hash) {
            return blockIndexes[hash];
          }
        },
        db: {
          tip: {
            hash: '000000000008fbb2e358e382a6f6948b2da24563bba183af447e6e2542e8efc7'
          }
        }
      }
    };

    it('should have correct data', function(done) {
      var blocks = new BlockController(node);

      var req = {
        query: {
          limit: 2
        }
      };

      var res = {
        jsonp: function(data) {
          should(data).eql(insight);
          done();
        }
      };

      blocks.list(req, res);
    });
  });

  describe('/block-index/:height route', function() {
    var node = {
      services: {
        bitcoind: {
          getBlockIndex: function(height) {
            return blockIndexes[height];
          }
        }
      }
    };

    it('should have correct data', function(done) {
      var blocks = new BlockController(node);

      var insight = {
        "blockHash": "0000000000000afa0c3c0afd450c793a1e300ec84cbe9555166e06132f19a8f7"
      };

      var req = {};
      var res = {
        jsonp: function(data) {
          should(data).eql(insight);
          done();
        }
      };
      var next = function() {};
      var height = 533974;

      blocks.blockIndex(req, res, next, height);
    });
  });

  describe('#getBlockReward', function() {
    var blocks = new BlockController({});

    it('should give a block reward of 50 * 1e8 for block before first halvening', function() {
      blocks.getBlockReward(100000).should.equal(50 * 1e8);
    });

    it('should give a block reward of 25 * 1e8 for block between first and second halvenings', function() {
      blocks.getBlockReward(373011).should.equal(25 * 1e8);
    });

    it('should give a block reward of 12.5 * 1e8 for block between second and third halvenings', function() {
      blocks.getBlockReward(500000).should.equal(12.5 * 1e8);
    });
  });
});