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var crypto = require('crypto')

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var tape   = require('tape')

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var Sha1   = require('../').sha1

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var Uint32toHex = Sha1.Uint32toHex

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function generateCount (m) {

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  var s = ''

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  for(var i = 0; i < m/8; i++) {

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    console.log('GENERATE', i, Uint32toHex(i))

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    s+=i

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  }

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  return s

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}

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var inputs = [

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 ['', 'ascii'],

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 ['abc', 'ascii'],

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 ['123', 'ascii'],

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 ['123456789abcdef123456789abcdef123456789abcdef123456789abcdef', 'ascii'],

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 ['123456789abcdef123456789abcdef123456789abcdef123456789abc', 'ascii'],

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 ['123456789abcdef123456789abcdef123456789abcdef123456789ab', 'ascii'],

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 ['0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcde', 'ascii'],

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 ['0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef', 'ascii'],

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 ['foobarbaz', 'ascii']

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]

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tape("hash is the same as node's crypto", function (t) {

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  inputs.forEach(function (v) {

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    var a = new Sha1().update(v[0], v[1]).digest('hex')

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    var e = crypto.createHash('sha1').update(v[0], v[1]).digest('hex')

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    console.log(a, '==', e)

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    t.equal(a, e)

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  })

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  t.end()

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})

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tape('call update multiple times', function (t) {

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  var n = 1

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  inputs.forEach(function (v) {

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    var hash = new Sha1()

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    var _hash = crypto.createHash('sha1')

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    for(var i = 0; i < v[0].length; i=(i+1)*2) {

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      var s = v[0].substring(i, (i+1)*2)

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      hash.update(s, v[1])

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      _hash.update(s, v[1])

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    }

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    var a = hash.digest('hex')

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    var e = _hash.digest('hex')

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    console.log(a, '==', e)

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    t.equal(a, e)

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  })

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  t.end()

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})

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tape('call update twice', function (t) {

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  var _hash = crypto.createHash('sha1')

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  var hash  = new Sha1()

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  _hash.update('foo', 'ascii')

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  hash.update('foo', 'ascii')

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  _hash.update('bar', 'ascii')

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  hash.update('bar', 'ascii')

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  _hash.update('baz', 'ascii')

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  hash.update('baz', 'ascii')

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  var a = hash.digest('hex')

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  var e = _hash.digest('hex')

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  t.equal(a, e)

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  t.end()

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})

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tape('hex encoding', function (t) {

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  var n = 1

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  inputs.forEach(function (v) {

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    var hash = new Sha1()

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    var _hash = crypto.createHash('sha1')

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    for(var i = 0; i < v[0].length; i=(i+1)*2) {

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      var s = v[0].substring(i, (i+1)*2)

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      hash.update(new Buffer(s, 'ascii').toString('hex'), 'hex')

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      _hash.update(new Buffer(s, 'ascii').toString('hex'), 'hex')

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    }

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    var a = hash.digest('hex')

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    var e = _hash.digest('hex')

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    console.log(a, '==', e)

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    t.equal(a, e)

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  })

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  t.end()

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})

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