module SuperZipcode
  class Taiwan
    CITY_ZONE_ZIP_CODES = {
      # 資料來源： jQuery TWzipcode v1.7.8
      '基隆市' => {'仁愛區' => '200', '信義區' => '201', '中正區' => '202', '中山區' => '203', '安樂區' => '204', '暖暖區' => '205', '七堵區' => '206'},
      '台北市' => {'中正區' => '100', '大同區' => '103', '中山區' => '104', '松山區' => '105', '大安區' => '106', '萬華區' => '108', '信義區' => '110', '士林區' => '111', '北投區' => '112', '內湖區' => '114', '南港區' => '115', '文山區' => '116'},
      '新北市' => {
        '萬里區' => '207', '金山區' => '208', '板橋區' => '220', '汐止區' => '221', '深坑區' => '222', '石碇區' => '223',
        '瑞芳區' => '224', '平溪區' => '226', '雙溪區' => '227', '貢寮區' => '228', '新店區' => '231', '坪林區' => '232',
        '烏來區' => '233', '永和區' => '234', '中和區' => '235', '土城區' => '236', '三峽區' => '237', '樹林區' => '238',
        '鶯歌區' => '239', '三重區' => '241', '新莊區' => '242', '泰山區' => '243', '林口區' => '244', '蘆洲區' => '247',
        '五股區' => '248', '八里區' => '249', '淡水區' => '251', '三芝區' => '252', '石門區' => '253'
      },
      '宜蘭縣' => {
        '宜蘭市' => '260', '頭城鎮' => '261', '礁溪鄉' => '262', '壯圍鄉' => '263', '員山鄉' => '264', '羅東鎮' => '265',
        '三星鄉' => '266', '大同鄉' => '267', '五結鄉' => '268', '冬山鄉' => '269', '蘇澳鎮' => '270', '南澳鄉' => '272',
        '釣魚台列嶼' => '290'
      },
      '新竹市' => {'東區' => '300', '北區' => '300', '香山區' => '300'},
      '新竹縣' => {
        '竹北市' => '302', '湖口鄉' => '303', '新豐鄉' => '304', '新埔鎮' => '305', '關西鎮' => '306', '芎林鄉' => '307',
        '寶山鄉' => '308', '竹東鎮' => '310', '五峰鄉' => '311', '橫山鄉' => '312', '尖石鄉' => '313', '北埔鄉' => '314',
        '峨嵋鄉' => '315'
      },
      '桃園市' => {
        '中壢區' => '320', '平鎮區' => '324', '龍潭區' => '325', '楊梅區' => '326', '新屋區' => '327', '觀音區' => '328',
        '桃園區' => '330', '龜山區' => '333', '八德區' => '334', '大溪區' => '335', '復興區' => '336', '大園區' => '337',
        '蘆竹區' => '338'
      },
      '苗栗縣' => {
        '竹南鎮' => '350', '頭份市' => '351', '三灣鄉' => '352', '南庄鄉' => '353', '獅潭鄉' => '354', '後龍鎮' => '356',
        '通霄鎮' => '357', '苑裡鎮' => '358', '苗栗市' => '360', '造橋鄉' => '361', '頭屋鄉' => '362', '公館鄉' => '363',
        '大湖鄉' => '364', '泰安鄉' => '365', '銅鑼鄉' => '366', '三義鄉' => '367', '西湖鄉' => '368', '卓蘭鎮' => '369'
      },
      '台中市' => {
        '中區' => '400', '東區' => '401', '南區' => '402', '西區' => '403', '北區' => '404', '北屯區' => '406', '西屯區' => '407', '南屯區' => '408',
        '太平區' => '411', '大里區' => '412', '霧峰區' => '413', '烏日區' => '414', '豐原區' => '420', '后里區' => '421',
        '石岡區' => '422', '東勢區' => '423', '和平區' => '424', '新社區' => '426', '潭子區' => '427', '大雅區' => '428',
        '神岡區' => '429', '大肚區' => '432', '沙鹿區' => '433', '龍井區' => '434', '梧棲區' => '435', '清水區' => '436',
        '大甲區' => '437', '外埔區' => '438', '大安區' => '439'
      },
      '彰化縣' => {
        '彰化市' => '500', '芬園鄉' => '502', '花壇鄉' => '503', '秀水鄉' => '504', '鹿港鎮' => '505', '福興鄉' => '506',
        '線西鄉' => '507', '和美鎮' => '508', '伸港鄉' => '509', '員林市' => '510', '社頭鄉' => '511', '永靖鄉' => '512',
        '埔心鄉' => '513', '溪湖鎮' => '514', '大村鄉' => '515', '埔鹽鄉' => '516', '田中鎮' => '520', '北斗鎮' => '521',
        '田尾鄉' => '522', '埤頭鄉' => '523', '溪州鄉' => '524', '竹塘鄉' => '525', '二林鎮' => '526', '大城鄉' => '527',
        '芳苑鄉' => '528', '二水鄉' => '530'
      },
      '南投縣' => {
        '南投市' => '540', '中寮鄉' => '541', '草屯鎮' => '542', '國姓鄉' => '544', '埔里鎮' => '545', '仁愛鄉' => '546',
        '名間鄉' => '551', '集集鎮' => '552', '水里鄉' => '553', '魚池鄉' => '555', '信義鄉' => '556', '竹山鎮' => '557',
        '鹿谷鄉' => '558'
      },
      '嘉義市' => {'東區' => '600', '西區' => '600'},
      '嘉義縣' => {
        '番路鄉' => '602', '梅山鄉' => '603', '竹崎鄉' => '604', '阿里山' => '605', '中埔鄉' => '606', '大埔鄉' => '607',
        '水上鄉' => '608', '鹿草鄉' => '611', '太保市' => '612', '朴子市' => '613', '東石鄉' => '614', '六腳鄉' => '615',
        '新港鄉' => '616', '民雄鄉' => '621', '大林鎮' => '622', '溪口鄉' => '623', '義竹鄉' => '624', '布袋鎮' => '625'
      },
      '雲林縣' => {
        '斗南鎮' => '630', '大埤鄉' => '631', '虎尾鎮' => '632', '土庫鎮' => '633', '褒忠鄉' => '634', '東勢鄉' => '635',
        '臺西鄉' => '636', '崙背鄉' => '637', '麥寮鄉' => '638', '斗六市' => '640', '林內鄉' => '643', '古坑鄉' => '646',
        '莿桐鄉' => '647', '西螺鎮' => '648', '二崙鄉' => '649', '北港鎮' => '651', '水林鄉' => '652', '口湖鄉' => '653',
        '四湖鄉' => '654', '元長鄉' => '655'
      },
      '台南市' => {
        '中西區' => '700', '東區' => '701', '南區' => '702', '北區' => '704', '安平區' => '708', '安南區' => '709',
        '永康區' => '710', '歸仁區' => '711', '新化區' => '712', '左鎮區' => '713', '玉井區' => '714', '楠西區' => '715',
        '南化區' => '716', '仁德區' => '717', '關廟區' => '718', '龍崎區' => '719', '官田區' => '720', '麻豆區' => '721',
        '佳里區' => '722', '西港區' => '723', '七股區' => '724', '將軍區' => '725', '學甲區' => '726', '北門區' => '727',
        '新營區' => '730', '後壁區' => '731', '白河區' => '732', '東山區' => '733', '六甲區' => '734', '下營區' => '735',
        '柳營區' => '736', '鹽水區' => '737', '善化區' => '741', '大內區' => '742', '山上區' => '743', '新市區' => '744',
        '安定區' => '745'
      },
      '高雄市' => {
        '新興區' => '800', '前金區' => '801', '苓雅區' => '802', '鹽埕區' => '803', '鼓山區' => '804', '旗津區' => '805',
        '前鎮區' => '806', '三民區' => '807', '楠梓區' => '811', '小港區' => '812', '左營區' => '813',
        '仁武區' => '814', '大社區' => '815', '東沙群島' => '817', '南沙群島' => '819', '岡山區' => '820', '路竹區' => '821',
        '阿蓮區' => '822', '田寮區' => '823',
        '燕巢區' => '824', '橋頭區' => '825', '梓官區' => '826', '彌陀區' => '827', '永安區' => '828', '湖內區' => '829',
        '鳳山區' => '830', '大寮區' => '831', '林園區' => '832', '鳥松區' => '833', '大樹區' => '840', '旗山區' => '842',
        '美濃區' => '843', '六龜區' => '844', '內門區' => '845', '杉林區' => '846', '甲仙區' => '847', '桃源區' => '848',
        '那瑪夏區' => '849', '茂林區' => '851', '茄萣區' => '852'
      },
      '屏東縣' => {
        '屏東市' => '900', '三地門鄉' => '901', '霧臺鄉' => '902', '瑪家鄉' => '903', '九如鄉' => '904', '里港鄉' => '905',
        '高樹鄉' => '906', '鹽埔鄉' => '907', '長治鄉' => '908', '麟洛鄉' => '909', '竹田鄉' => '911', '內埔鄉' => '912',
        '萬丹鄉' => '913', '潮州鎮' => '920', '泰武鄉' => '921', '來義鄉' => '922', '萬巒鄉' => '923', '崁頂鄉' => '924',
        '新埤鄉' => '925', '南州鄉' => '926', '林邊鄉' => '927', '東港鎮' => '928', '琉球鄉' => '929', '佳冬鄉' => '931',
        '新園鄉' => '932', '枋寮鄉' => '940', '枋山鄉' => '941', '春日鄉' => '942', '獅子鄉' => '943', '車城鄉' => '944',
        '牡丹鄉' => '945', '恆春鎮' => '946', '滿州鄉' => '947'
      },
      '台東縣' => {
        '臺東市' => '950', '綠島鄉' => '951', '蘭嶼鄉' => '952', '延平鄉' => '953', '卑南鄉' => '954', '鹿野鄉' => '955',
        '關山鎮' => '956', '海端鄉' => '957', '池上鄉' => '958', '東河鄉' => '959', '成功鎮' => '961', '長濱鄉' => '962',
        '太麻里鄉' => '963', '金峰鄉' => '964', '大武鄉' => '965', '達仁鄉' => '966'
      },
      '花蓮縣' => {
        '花蓮市' => '970', '新城鄉' => '971', '秀林鄉' => '972', '吉安鄉' => '973', '壽豐鄉' => '974', '鳳林鎮' => '975',
        '光復鄉' => '976', '豐濱鄉' => '977', '瑞穗鄉' => '978', '萬榮鄉' => '979', '玉里鎮' => '981', '卓溪鄉' => '982',
        '富里鄉' => '983'
      },
      '金門縣' => {'金沙鎮' => '890', '金湖鎮' => '891', '金寧鄉' => '892', '金城鎮' => '893', '烈嶼鄉' => '894', '烏坵鄉' => '896'},
      '連江縣' => {'南竿鄉' => '209', '北竿鄉' => '210', '莒光鄉' => '211', '東引鄉' => '212'},
      '澎湖縣' => {'馬公市' => '880', '西嶼鄉' => '881', '望安鄉' => '882', '七美鄉' => '883', '白沙鄉' => '884', '湖西鄉' => '885'}
    }

    def self.code_regex
      /(.{0,2}市|.{0,2}縣)(新市區|左鎮區|平鎮區|釣魚台列嶼|東沙群島|南沙群島|那瑪夏區|.{0,2}區|.{0,3}鄉|.{0,2}鎮|.{0,2}市)/
    end

    def self.find_zip_code(address)
      regex_match = code_regex =~ address
      return nil if regex_match.blank?

      city     = $1
      district = $2

      return nil if CITY_ZONE_ZIP_CODES[city].blank?
      CITY_ZONE_ZIP_CODES[city][district]
    end

    def self.find_city(address)
      regex_match = code_regex =~ address
      return nil if regex_match.blank?

      city = $1
      CITY_ZONE_ZIP_CODES[city].present? && city
    end
  end
end