BPromise = require 'bluebird'
_ = require 'underscore'
util = require 'util'
fs = BPromise.promisifyAll( require 'fs' )
path = require 'path'
child_process = BPromise.promisifyAll( require 'child_process' )
parseStringAsync = BPromise.promisify( require('xml2js').parseString )

typeIsArray = Array.isArray || ( value ) ->
  return {}.toString.call( value ) is '[object Array]'

Array::removeAll = (v) -> x for x in @ when x!=v

escape = (str) ->
  '"' + str + '"'

escapeText = (str) ->
  '\"' + str.replace(/\s/g,"\\ ") + '\"';

package_folder = path.join( __dirname, '..')

exports.config = config =
  JSON.parse( fs.readFileSync( path.normalize __dirname + '/../config.json' ) )

exports.getConcepts = getConcepts = (docs, options, callback) ->

  args = ['--username ' + escape(config.username), '--password ' +
  escape(config.password),
    '--email ' + escape(config.email)]
  for key, value of options
    if _.contains(['Q','t','d','D','a','u','K','l','r','i','Y','b','y'],
    key)  and value == true
      args.push("-" + key)
    if _.contains(['R','e','J','k'], key) and typeIsArray(value) == true
      args.push("-" + key + " " + value.join(','))

  command = 'sh ' +
  path.normalize ( __dirname +
  '/../SKR_Web_API_V2_1/run.sh') +
  ' MMCustom ' + args.join(' ')
  filePath = path.normalize ( __dirname +
  '/../SKR_Web_API_V2_1/examples/temp.txt')

  analyze = (doc) ->
    args.push("--document " + escape(doc).replace(/\s/g,"_"))
    command = 'sh ' +
    path.normalize ( __dirname + '/../SKR_Web_API_V2_1/run.sh') +
    ' MMCustom ' + args.join(' ')
    proc = child_process.execAsync(command, {
      cwd: package_folder,
      maxBuffer: 1024 * 1024
    })
    return proc

  if Array.isArray(docs) == false then docs = Array(docs)

  analyses = (analyze doc for doc in docs)

  resultSet = BPromise.all(analyses)
  .map( (data) ->
    xmlString = '<?xml version="1.0" encoding="UTF-8"?>' +
    data[0].split('<?xml version="1.0" encoding="UTF-8"?>')[1]
    return parseStringAsync(xmlString, {
      mergeAttrs: true,
      explicitArray: false
    })
  )
  .map( (data) ->
    ret = data.MMOs.MMO
    delete ret.CmdLine
    return ret
  )

  return resultSet.nodeify(callback)

exports.getConceptArray = ( resultSet ) ->
  utterances =  resultSet[0]?.Utterances?.Utterance
  if Array.isArray( utterances ) is true
    ret = _.flatten utterances.map( (u) ->
      phrases = u.Phrases?.Phrase
      if not Array.isArray(phrases) then phrases = [phrases]
      phrases
      .map( (p) -> p.Mappings?.Mapping)
      .filter( (p) -> p != undefined )
      .map( (c) -> if Array.isArray(c) then c[0] else c )
      .map( (c) -> c.MappingCandidates?.Candidate )
    )
  else
    phrases = utterances.Phrases?.Phrase
    if not Array.isArray(phrases) then phrases = [phrases]
    ret = _.flatten( phrases
    .map( (p) -> p.Mappings?.Mapping)
    .filter( (p) -> p != undefined )
    .map( (c) -> if Array.isArray(c) then c[0] else c )
    .map( (c) -> c.MappingCandidates?.Candidate ) )
  return ret