unless Object.const_defined?(:Encoding)
  $KCODE = 'u'
end

module Jpmobile
  module Emoticon
    GETA_CODE = 0x3013
    GETA      = [GETA_CODE].pack('U')

    SJIS_TO_UNICODE = {}
    SJIS_TO_UNICODE.update(DOCOMO_SJIS_TO_UNICODE)
    SJIS_TO_UNICODE.update(AU_SJIS_TO_UNICODE)
    SJIS_TO_UNICODE.freeze
    UNICODE_TO_SJIS = SJIS_TO_UNICODE.invert.freeze

    # for au email
    SJIS_TO_EMAIL_JIS = {0x81ac => 0x222E}
    SJIS_TO_EMAIL_JIS.update(AU_SJIS_TO_EMAIL_JIS)
    SJIS_TO_EMAIL_JIS.freeze

    SJIS_REGEXP = Regexp.union(*SJIS_TO_UNICODE.keys.map{|s| Jpmobile::Util.sjis_regexp(s)})
    SOFTBANK_WEBCODE_REGEXP = Regexp.union(*([/(?!)/n]+SOFTBANK_WEBCODE_TO_UNICODE.keys.map{|x| "\x1b\x24#{x}\x0f"}))

    DOCOMO_SJIS_REGEXP      = Regexp.union(*DOCOMO_SJIS_TO_UNICODE.keys.map{|s| Jpmobile::Util.sjis_regexp(s)})
    AU_SJIS_REGEXP          = Regexp.union(*AU_SJIS_TO_UNICODE.keys.map{|s| Jpmobile::Util.sjis_regexp(s)})
    SOFTBANK_UNICODE_REGEXP = Regexp.union(*SOFTBANK_UNICODE_TO_WEBCODE.keys.map{|x| [x].pack('U')}).freeze

    EMOTICON_UNICODES = UNICODE_TO_SJIS.keys|SOFTBANK_UNICODE_TO_WEBCODE.keys.map{|k|k+0x1000}
    UTF8_REGEXP = Regexp.union(*EMOTICON_UNICODES.map{|x| [x].pack('U')}).freeze

    # for PC conversion "GETA"
    CONVERSION_TABLE_TO_PC_EMAIL = Hash[*(CONVERSION_TABLE_TO_SOFTBANK.keys|CONVERSION_TABLE_TO_DOCOMO.keys|CONVERSION_TABLE_TO_AU.keys).map{|k| [k, GETA]}.flatten]

    SOFTBANK_SJIS_REGEXP = Regexp.union(*SOFTBANK_SJIS_TO_UNICODE.keys.map{|s| Jpmobile::Util.sjis_regexp(s)}).freeze
    AU_EMAILJIS_REGEXP = Regexp.union(*AU_EMAILJIS_TO_UNICODE.keys.map{|s| Jpmobile::Util.jis_regexp(s)})

    # for unicode/google emoticons
    UNICODE_EMOTICONS = (UNICODE_TO_DOCOMO_UNICODE.keys|UNICODE_TO_AU_UNICODE.keys|UNICODE_TO_SOFTBANK_UNICODE.keys).uniq
    GOOGLE_EMOTICONS = (GOOGLE_TO_DOCOMO_UNICODE.keys|GOOGLE_TO_AU_UNICODE.keys|GOOGLE_TO_SOFTBANK_UNICODE.keys).uniq

    UNICODE_EMOTICON_REGEXP = Regexp.union(*UNICODE_EMOTICONS.map{|x| x.kind_of?(Array) ? x.pack('UU') : [x].pack('U')}).freeze
    GOOGLE_EMOTICON_REGEXP = Regexp.union(*GOOGLE_EMOTICONS.map{|x| x.kind_of?(Array) ? x.pack('UU') : [x].pack('U')}).freeze

    UNICODE_EMOTICON_TO_CARRIER_EMOTICON = UNICODE_TO_DOCOMO_UNICODE.merge(UNICODE_TO_AU_UNICODE.merge(UNICODE_TO_SOFTBANK_UNICODE))
    GOOGLE_EMOTICON_TO_CARRIER_EMOTICON = GOOGLE_TO_SOFTBANK_UNICODE.merge(GOOGLE_TO_AU_UNICODE.merge(GOOGLE_TO_DOCOMO_UNICODE))

    CONVERSION_TABLE_TO_UNICODE_EMOTICON = Jpmobile::Util.invert_table(UNICODE_TO_DOCOMO_UNICODE).merge(
      Jpmobile::Util.invert_table(UNICODE_TO_AU_UNICODE).merge(Jpmobile::Util.invert_table(UNICODE_TO_SOFTBANK_UNICODE)))
    CONVERSION_TABLE_TO_GOOGLE_EMOTICON = Jpmobile::Util.invert_table(GOOGLE_TO_SOFTBANK_UNICODE).merge(
      Jpmobile::Util.invert_table(GOOGLE_TO_AU_UNICODE).merge(Jpmobile::Util.invert_table(GOOGLE_TO_DOCOMO_UNICODE)))
  end
end