require 'config/emoij'
require 'helpers/urls'

config_keys_map = Travis.CONFIG_KEYS_MAP
config = Travis.config
githubCommitUrl = Travis.Urls.githubCommit
timeago = $.timeago
intersect = $.intersect
only = $.only
mapObject = $.map

colors = {
  default:  'yellow'
  passed:   'green'
  failed:   'red'
  errored:  'gray'
  canceled: 'gray'
}

compact = (object) ->
  result = {}
  (result[key] = value unless Ember.isEmpty(value)) for key, value of object || {}
  result

safe = (string) ->
  new Ember.Handlebars.SafeString(string)

colorForState = (state) ->
  colors[state] || colors['default']

formatCommit = (sha, branch) ->
  formatSha(sha) + if branch then " (#{branch})" else ''

formatSha = (sha) ->
  (sha || '').substr(0, 7)

formatConfig = (config) ->
  config = only config, Object.keys(config_keys_map)
  values = mapObject config, (value, key) ->
    value = (if value && value.join then value.join(', ') else value) || ''
    if key == 'rvm' && "#{value}".match(/^\d+$/)
      value = "#{value}.0"
    '%@: %@'.fmt config_keys_map[key], value
  if values.length == 0 then '-' else values.join(', ')

formatMessage = (message, options) ->
  message = message || ''
  message = message.split(/\n/)[0]  if options.short
  message = _emojize(_escape(message))
  if !!options.repo
    message = githubify(message, options.repo.get('owner'), options.repo.get('name'))
  if !!options.pre
    message = message.replace /\n/g, '<br/>'
  message

pathFrom = (url) ->
  (url || '').split('/').pop()

timeAgoInWords = (date) ->
  timeago.distanceInWords date

durationFrom = (started, finished) ->
  started = started and _toUtc(new Date(_normalizeDateString(started)))
  finished = if finished then _toUtc(new Date(_normalizeDateString(finished))) else _nowUtc()
  if started && finished then Math.round((finished - started) / 1000) else 0

timeInWords = (duration) ->
  days = Math.floor(duration / 86400)
  hours = Math.floor(duration % 86400 / 3600)
  minutes = Math.floor(duration % 3600 / 60)
  seconds = duration % 60

  if days > 0
    'more than 24 hrs'
  else
    result = []
    result.push hours + ' hr'  if hours is 1
    result.push hours + ' hrs'  if hours > 1
    result.push minutes + ' min'  if minutes > 0
    result.push seconds + ' sec'  if seconds > 0
    if result.length > 0 then result.join(' ') else '-'

githubify = (text, owner, repo) ->
  text = text.replace _githubReferenceRegexp, (reference, matchedOwner, matchedRepo, matchedNumber) ->
    _githubReferenceLink(reference, { owner: owner, repo: repo }, { owner: matchedOwner, repo: matchedRepo, number: matchedNumber } )
  text = text.replace _githubUserRegexp, (reference, username) ->
    _githubUserLink(reference, username)
  text = text.replace _githubCommitReferenceRegexp, (reference, matchedOwner, matchedRepo, matchedSHA) ->
    _githubCommitReferenceLink(reference, { owner: owner, repo: repo }, { owner: matchedOwner, repo: matchedRepo, sha: matchedSHA })
  text

_githubReferenceRegexp = new RegExp("([\\w-]+)?\\/?([\\w-]+)?(?:#|gh-)(\\d+)", 'g')

_githubReferenceLink = (reference, current, matched) ->
  owner = matched.owner || current.owner
  repo = matched.repo || current.repo
  "<a href=\"#{config.source_endpoint}/#{owner}/#{repo}/issues/#{matched.number}\">#{reference}</a>"

_githubUserRegexp = new RegExp("\\B@([\\w-]+)", 'g')

_githubUserLink = (reference, username) ->
  "<a href=\"#{config.source_endpoint}/#{username}\">#{reference}</a>"

_githubCommitReferenceRegexp = new RegExp("([\\w-]+)?\\/([\\w-]+)?@([0-9A-Fa-f]+)", 'g')

_githubCommitReferenceLink = (reference, current, matched) ->
  owner = matched.owner || current.owner
  repo = matched.repo || current.repo
  url = "#{githubCommitUrl("#{owner}/#{repo}", matched.sha)}"
  "<a href=\"#{url}\">#{reference}</a>"

_normalizeDateString = (string) ->
  if window.JHW
    string = string.replace('T', ' ').replace(/-/g, '/')
    string = string.replace('Z', '').replace(/\..*$/, '')
  string

_nowUtc = ->
  # TODO: we overwrite Travis.currentDate in tests, so we need to leave this
  # global usage as it is for now, but it should be removed at some point
  _toUtc Travis.currentDate()

_toUtc = (date) ->
  Date.UTC date.getFullYear(), date.getMonth(), date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds(), date.getMilliseconds()

_emojize = (text) ->
  emojis = text.match(/:\S+?:/g)
  if emojis isnt null
    emojis.uniq().each (emoji, ix) ->
      strippedEmoji = emoji.substring(1, emoji.length - 1)
      unless EmojiDictionary.indexOf(strippedEmoji) is -1
        image = '<img class=\'emoji\' title=\'' + emoji + '\' alt=\'' + emoji + '\' src=\'' + '/images/emoji/' + strippedEmoji + '.png\'/>'
        text = text.replace(new RegExp(emoji, 'g'), image)
  text

_escape = (text) ->
  text.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace />/g, '&gt;'

configKeys = (config) ->
  return [] unless config
  intersect(Object.keys(config), Object.keys(config_keys_map))

Travis.Helpers =
  configKeys: configKeys
  _escape: _escape
  _emojize: _emojize
  _toUtc: _toUtc
  _nowUtc: _nowUtc
  _normalizeDateString: _normalizeDateString
  _githubCommitReferenceLink: _githubCommitReferenceLink
  _githubCommitReferenceRegexp: _githubCommitReferenceRegexp
  _githubUserLink: _githubUserLink
  _githubUserRegexp: _githubUserRegexp
  _githubReferenceLink: _githubReferenceLink
  _githubReferenceRegexp: _githubReferenceRegexp
  githubify: githubify
  timeInWords: timeInWords
  durationFrom: durationFrom
  timeAgoInWords: timeAgoInWords
  pathFrom: pathFrom
  formatMessage: formatMessage
  formatConfig: formatConfig
  formatSha: formatSha
  formatCommit: formatCommit
  colorForState: colorForState
  safe: safe
  compact: compact