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import pickle
import os
import re
from g2p_en import G2p

from string import punctuation

from gpt_sovits.text import symbols

current_file_path = os.path.dirname(__file__)
CMU_DICT_PATH = os.path.join(current_file_path, "cmudict.rep")
CMU_DICT_FAST_PATH = os.path.join(current_file_path, "cmudict-fast.rep")
CMU_DICT_HOT_PATH = os.path.join(current_file_path, "engdict-hot.rep")
CACHE_PATH = os.path.join(current_file_path, "engdict_cache.pickle")
_g2p = G2p()

arpa = {
    "AH0",
    "S",
    "AH1",
    "EY2",
    "AE2",
    "EH0",
    "OW2",
    "UH0",
    "NG",
    "B",
    "G",
    "AY0",
    "M",
    "AA0",
    "F",
    "AO0",
    "ER2",
    "UH1",
    "IY1",
    "AH2",
    "DH",
    "IY0",
    "EY1",
    "IH0",
    "K",
    "N",
    "W",
    "IY2",
    "T",
    "AA1",
    "ER1",
    "EH2",
    "OY0",
    "UH2",
    "UW1",
    "Z",
    "AW2",
    "AW1",
    "V",
    "UW2",
    "AA2",
    "ER",
    "AW0",
    "UW0",
    "R",
    "OW1",
    "EH1",
    "ZH",
    "AE0",
    "IH2",
    "IH",
    "Y",
    "JH",
    "P",
    "AY1",
    "EY0",
    "OY2",
    "TH",
    "HH",
    "D",
    "ER0",
    "CH",
    "AO1",
    "AE1",
    "AO2",
    "OY1",
    "AY2",
    "IH1",
    "OW0",
    "L",
    "SH",
}


def replace_phs(phs):
    rep_map = {";": ",", ":": ",", "'": "-", '"': "-"}
    phs_new = []
    for ph in phs:
        if ph in symbols:
            phs_new.append(ph)
        elif ph in rep_map.keys():
            phs_new.append(rep_map[ph])
        else:
            print("ph not in symbols: ", ph)
    return phs_new


def read_dict():
    g2p_dict = {}
    start_line = 49
    with open(CMU_DICT_PATH) as f:
        line = f.readline()
        line_index = 1
        while line:
            if line_index >= start_line:
                line = line.strip()
                word_split = line.split("  ")
                word = word_split[0]

                syllable_split = word_split[1].split(" - ")
                g2p_dict[word] = []
                for syllable in syllable_split:
                    phone_split = syllable.split(" ")
                    g2p_dict[word].append(phone_split)

            line_index = line_index + 1
            line = f.readline()

    return g2p_dict


def read_dict_new():
    g2p_dict = {}
    with open(CMU_DICT_PATH) as f:
        line = f.readline()
        line_index = 1
        while line:
            if line_index >= 49:
                line = line.strip()
                word_split = line.split("  ")
                word = word_split[0]

                syllable_split = word_split[1].split(" - ")
                g2p_dict[word] = []
                for syllable in syllable_split:
                    phone_split = syllable.split(" ")
                    g2p_dict[word].append(phone_split)

            line_index = line_index + 1
            line = f.readline()

    with open(CMU_DICT_FAST_PATH) as f:
        line = f.readline()
        line_index = 1
        while line:
            if line_index >= 0:
                line = line.strip()
                word_split = line.split(" ")
                word = word_split[0]
                if word not in g2p_dict:
                    g2p_dict[word] = []
                    g2p_dict[word].append(word_split[1:])

            line_index = line_index + 1
            line = f.readline()

    with open(CMU_DICT_HOT_PATH) as f:
        line = f.readline()
        line_index = 1
        while line:
            if line_index >= 0:
                line = line.strip()
                word_split = line.split(" ")
                word = word_split[0]
                # if word not in g2p_dict: # https://github.com/RVC-Boss/GPT-SoVITS/pull/507
                g2p_dict[word] = []
                g2p_dict[word].append(word_split[1:])

            line_index = line_index + 1
            line = f.readline()
    
    return g2p_dict


def cache_dict(g2p_dict, file_path):
    with open(file_path, "wb") as pickle_file:
        pickle.dump(g2p_dict, pickle_file)


def get_dict():
    if os.path.exists(CACHE_PATH):
        with open(CACHE_PATH, "rb") as pickle_file:
            g2p_dict = pickle.load(pickle_file)
    else:
        g2p_dict = read_dict_new()
        cache_dict(g2p_dict, CACHE_PATH)

    return g2p_dict


eng_dict = get_dict()


def text_normalize(text):
    # todo: eng text normalize
    return text.replace(";", ",")


def g2p(text):
    phones = []
    words = re.split(r"([,;.\-\?\!\s+])", text)
    for w in words:
        if w.upper() in eng_dict:
            phns = eng_dict[w.upper()]
            for ph in phns:
                phones += ph
        else:
            phone_list = list(filter(lambda p: p != " ", _g2p(w)))
            for ph in phone_list:
                if ph in arpa:
                    phones.append(ph)
                else:
                    phones.append(ph)

    return replace_phs(phones)


if __name__ == "__main__":
    # print(get_dict())
    print(g2p("hello"))
    print(g2p("In this; paper, we propose 1 DSPGAN, a GAN-based universal vocoder."))
    # all_phones = set()
    # for k, syllables in eng_dict.items():
    #     for group in syllables:
    #         for ph in group:
    #             all_phones.add(ph)
    # print(all_phones)