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import os
import sys
import re
from pypinyin import lazy_pinyin, BOPOMOFO
import jieba
import cn2an
import logging

logging.getLogger('jieba').setLevel(logging.WARNING)
jieba.initialize()


# List of (Latin alphabet, bopomofo) pairs:
_latin_to_bopomofo = [(re.compile('%s' % x[0], re.IGNORECASE), x[1]) for x in [
    ('a', 'γ„ŸΛ‰'),
    ('b', 'ㄅㄧˋ'),
    ('c', 'ㄙㄧˉ'),
    ('d', 'ㄉㄧˋ'),
    ('e', 'ㄧˋ'),
    ('f', 'γ„ΛŠγ„ˆγ„¨Λ‹'),
    ('g', 'ㄐㄧˋ'),
    ('h', 'ㄝˇㄑㄩˋ'),
    ('i', 'γ„žΛ‹'),
    ('j', 'γ„γ„ŸΛ‹'),
    ('k', 'γ„Žγ„ŸΛ‹'),
    ('l', 'γ„ΛŠγ„›Λ‹'),
    ('m', 'γ„ΛŠγ„‡γ„¨Λ‹'),
    ('n', 'γ„£Λ‰'),
    ('o', 'γ„‘Λ‰'),
    ('p', 'ㄆㄧˉ'),
    ('q', 'γ„Žγ„§γ„‘Λ‰'),
    ('r', 'γ„šΛ‹'),
    ('s', 'γ„ΛŠγ„™Λ‹'),
    ('t', 'γ„Šγ„§Λ‹'),
    ('u', 'ㄧㄑˉ'),
    ('v', 'ㄨㄧˉ'),
    ('w', 'γ„‰γ„šΛ‹γ„…γ„¨Λ‹γ„Œγ„§γ„‘Λ‹'),
    ('x', 'γ„Λ‰γ„Žγ„¨Λ‹γ„™Λ‹'),
    ('y', 'γ„¨γ„žΛ‹'),
    ('z', 'γ„—γ„ŸΛ‹')
]]

# List of (bopomofo, romaji) pairs:
_bopomofo_to_romaji = [(re.compile('%s' % x[0]), x[1]) for x in [
    ('γ„…γ„›', 'p⁼wo'),
    ('ㄆㄛ', 'pΚ°wo'),
    ('ㄇㄛ', 'mwo'),
    ('γ„ˆγ„›', 'fwo'),
    ('γ„…', 'p⁼'),
    ('ㄆ', 'pΚ°'),
    ('ㄇ', 'm'),
    ('γ„ˆ', 'f'),
    ('ㄉ', 't⁼'),
    ('γ„Š', 'tΚ°'),
    ('γ„‹', 'n'),
    ('γ„Œ', 'l'),
    ('ㄍ', 'k⁼'),
    ('γ„Ž', 'kΚ°'),
    ('ㄏ', 'h'),
    ('ㄐ', 'ʧ⁼'),
    ('γ„‘', 'Κ§Κ°'),
    ('γ„’', 'Κƒ'),
    ('γ„“', 'Κ¦`⁼'),
    ('γ„”', 'Κ¦`Κ°'),
    ('γ„•', 's`'),
    ('γ„–', 'ΙΉ`'),
    ('γ„—', 'ʦ⁼'),
    ('γ„˜', 'Κ¦Κ°'),
    ('γ„™', 's'),
    ('γ„š', 'a'),
    ('γ„›', 'o'),
    ('γ„œ', 'Ι™'),
    ('ㄝ', 'e'),
    ('γ„ž', 'ai'),
    ('γ„Ÿ', 'ei'),
    ('γ„ ', 'au'),
    ('γ„‘', 'ou'),
    ('ㄧㄒ', 'yeNN'),
    ('γ„’', 'aNN'),
    ('ㄧㄣ', 'iNN'),
    ('γ„£', 'Ι™NN'),
    ('γ„€', 'aNg'),
    ('ㄧγ„₯', 'iNg'),
    ('ㄨγ„₯', 'uNg'),
    ('γ„©γ„₯', 'yuNg'),
    ('γ„₯', 'Ι™Ng'),
    ('ㄦ', 'Ι™Ι»'),
    ('ㄧ', 'i'),
    ('ㄨ', 'u'),
    ('γ„©', 'Ι₯'),
    ('Λ‰', 'β†’'),
    ('ˊ', '↑'),
    ('Λ‡', '↓↑'),
    ('Λ‹', '↓'),
    ('Λ™', ''),
    (',', ','),
    ('。', '.'),
    ('!', '!'),
    ('?', '?'),
    ('β€”', '-')
]]


# List of (romaji, ipa) pairs:
_romaji_to_ipa = [(re.compile('%s' % x[0], re.IGNORECASE), x[1]) for x in [
    ('Κƒy', 'Κƒ'),
    ('Κ§Κ°y', 'Κ§Κ°'),
    ('ʧ⁼y', 'ʧ⁼'),
    ('NN', 'n'),
    ('Ng', 'Ε‹'),
    ('y', 'j'),
    ('h', 'x')
]]


def number_to_chinese(text):
    numbers = re.findall(r'\d+(?:\.?\d+)?', text)
    for number in numbers:
        text = text.replace(number, cn2an.an2cn(number), 1)
    return text


def chinese_to_bopomofo(text):
    text = text.replace('、', ',').replace('οΌ›', ',').replace(':', ',')
    words = jieba.lcut(text, cut_all=False)
    text = ''
    for word in words:
        bopomofos = lazy_pinyin(word, BOPOMOFO)
        if not re.search('[\u4e00-\u9fff]', word):
            text += word
            continue
        for i in range(len(bopomofos)):
            if re.match('[\u3105-\u3129]', bopomofos[i][-1]):
                bopomofos[i] += 'Λ‰'
        if text != '':
            text += ' '
        text += ''.join(bopomofos)
    return text


def latin_to_bopomofo(text):
    for regex, replacement in _latin_to_bopomofo:
        text = re.sub(regex, replacement, text)
    return text


def bopomofo_to_romaji(text):
    for regex, replacement in _bopomofo_to_romaji:
        text = re.sub(regex, replacement, text)
    return text


def chinese_to_romaji(text):
    text = number_to_chinese(text)
    text = chinese_to_bopomofo(text)
    text = latin_to_bopomofo(text)
    text = bopomofo_to_romaji(text)
    text = re.sub('i[aoe]', lambda x: 'y'+x.group(0)[1:], text)
    text = re.sub('u[aoΙ™e]', lambda x: 'w'+x.group(0)[1:], text)
    text = re.sub('([Κ¦sΙΉ]`[⁼ʰ]?)([→↓↑ ]+|$)', lambda x: x.group(1) +
                  'ΙΉ`'+x.group(2), text).replace('Ι»', 'ΙΉ`')
    text = re.sub('([Κ¦s][⁼ʰ]?)([→↓↑ ]+|$)',
                  lambda x: x.group(1)+'ΙΉ'+x.group(2), text)
    return text


def chinese_to_lazy_ipa(text):
    text = chinese_to_romaji(text)
    for regex, replacement in _romaji_to_ipa:
        text = re.sub(regex, replacement, text)
    return text