var assert = require('assert')

var bitcoin = require('../../')

describe('bitcoinjs-lib (README)', function() {
  it('can generate a Bitcoin address from a WIF private key', function() {
    var key = bitcoin.ECKey.fromWIF('Kxr9tQED9H44gCmp6HAdmemAzU3n84H3dGkuWTKvE23JgHMW8gct')

    assert.equal(key.pub.getAddress().toString(), '19AAjaTUbRjQCMuVczepkoPswiZRhjtg31')
  })

  it('can create a Transaction', function() {
    var tx = new bitcoin.TransactionBuilder()

    // Add the input (who is paying) of the form [previous transaction hash, index of the output to use]
    tx.addInput("aa94ab02c182214f090e99a0d57021caffd0f195a81c24602b1028b130b63e31", 0)

    // Add the output (who to pay to) of the form [payee's address, amount in satoshis]
    tx.addOutput("1Gokm82v6DmtwKEB8AiVhm82hyFSsEvBDK", 15000)

    // Initialize a private key using WIF
    var key = bitcoin.ECKey.fromWIF("L1uyy5qTuGrVXrmrsvHWHgVzW9kKdrp27wBC7Vs6nZDTF2BRUVwy")

    // Sign the first input with the new key
    tx.sign(0, key)

    assert.equal(tx.build().toHex(), '0100000001313eb630b128102b60241ca895f1d0ffca2170d5a0990e094f2182c102ab94aa000000006b483045022100aefbcf847900b01dd3e3debe054d3b6d03d715d50aea8525f5ea3396f168a1fb022013d181d05b15b90111808b22ef4f9ebe701caf2ab48db269691fdf4e9048f4f60121029f50f51d63b345039a290c94bffd3180c99ed659ff6ea6b1242bca47eb93b59fffffffff01983a0000000000001976a914ad618cf4333b3b248f9744e8e81db2964d0ae39788ac00000000')
  })

  it('can create a P2SH Multisig Address', function() {
    var privKeys = [
      'Kwv4iik3zSrMoR8RztogbMzV3i3CFRHjFPyQ8SME88g8c7fB4ouL',
      'KyahXPPP45jSmWVSd9687wPhqEAtRZCNfP3ENyZyV7CJ5gWWWWW1',
      'KzGaNk5adgZsjfsaWqwrCZhQn63BkQiKUWrCYBLTNspoDZ1d83F3'
    ].map(bitcoin.ECKey.fromWIF)
    var pubKeys = privKeys.map(function(x) { return x.pub })

    var redeemScript = bitcoin.scripts.multisigOutput(2, pubKeys) // 2 of 3
    var scriptPubKey = bitcoin.scripts.scriptHashOutput(redeemScript.getHash())
    var p2shAddress = bitcoin.Address.fromOutputScript(scriptPubKey).toString()

    assert.equal(p2shAddress, '36NUkt6FWUi3LAWBqWRdDmdTWbt91Yvfu7')
  })
})