"""adapted from https://github.com/keithito/tacotron"""

"""
Defines the set of symbols used in text input to the model.

The default is a set of ASCII characters that works well for English or text
that has been run through Unidecode. For other data, you can modify
_characters."""


arpabet = [
    "AA",
    "AA0",
    "AA1",
    "AA2",
    "AE",
    "AE0",
    "AE1",
    "AE2",
    "AH",
    "AH0",
    "AH1",
    "AH2",
    "AO",
    "AO0",
    "AO1",
    "AO2",
    "AW",
    "AW0",
    "AW1",
    "AW2",
    "AY",
    "AY0",
    "AY1",
    "AY2",
    "B",
    "CH",
    "D",
    "DH",
    "EH",
    "EH0",
    "EH1",
    "EH2",
    "ER",
    "ER0",
    "ER1",
    "ER2",
    "EY",
    "EY0",
    "EY1",
    "EY2",
    "F",
    "G",
    "HH",
    "IH",
    "IH0",
    "IH1",
    "IH2",
    "IY",
    "IY0",
    "IY1",
    "IY2",
    "JH",
    "K",
    "L",
    "M",
    "N",
    "NG",
    "OW",
    "OW0",
    "OW1",
    "OW2",
    "OY",
    "OY0",
    "OY1",
    "OY2",
    "P",
    "R",
    "S",
    "SH",
    "T",
    "TH",
    "UH",
    "UH0",
    "UH1",
    "UH2",
    "UW",
    "UW0",
    "UW1",
    "UW2",
    "V",
    "W",
    "Y",
    "Z",
    "ZH",
]


def get_symbols(symbol_set):
    if symbol_set == "english_basic":
        _pad = "_"
        _punctuation = "!'\"(),.:;? "
        _special = "-"
        _letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
        _arpabet = ["@" + s for s in arpabet]
        symbols = list(_pad + _special + _punctuation + _letters) + _arpabet
    elif symbol_set == "english_basic_lowercase":
        _pad = "_"
        _punctuation = "!'\"(),.:;? "
        _special = "-"
        _letters = "abcdefghijklmnopqrstuvwxyz"
        _arpabet = ["@" + s for s in arpabet]
        symbols = list(_pad + _special + _punctuation + _letters) + _arpabet
    elif symbol_set == "english_expanded":
        _punctuation = "!'\",.:;? "
        _math = "#%&*+-/[]()"
        _special = "_@©°½—₩€$"
        _accented = "áçéêëñöøćž"
        _letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
        _arpabet = ["@" + s for s in arpabet]
        symbols = (
            list(_punctuation + _math + _special + _accented + _letters) + _arpabet
        )
    elif symbol_set == "ukrainian":
        _punctuation = "'.,?! "
        _special = "-+"
        _letters = "абвгґдежзийклмнопрстуфхцчшщьюяєії"
        symbols = list(_punctuation + _special + _letters)
    elif symbol_set == "radtts":
        _punctuation = "!'\",.:;? "
        _math = "#%&*+-/[]()"
        _special = "_@©°½—₩€$"
        _accented = "áçéêëñöøćž"
        _numbers = "0123456789"
        _letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
        _arpabet = ["@" + s for s in arpabet]
        symbols = (
            list(_punctuation + _math + _special + _accented + _numbers + _letters)
            + _arpabet
        )
    else:
        raise Exception("{} symbol set does not exist".format(symbol_set))

    return symbols