import re

SYMBOLS_MAPPING = {
    "\n": "",
    "…": ".",
    "“": "'",
    "”": "'",
    "‘": "'",
    "’": "'",
    "【": "",
    "】": "",
    "[": "",
    "]": "",
    "（": "",
    "）": "",
    "(": "",
    ")": "",
    "・": "",
    "·": "",
    "「": "'",
    "」": "'",
    "《": "'",
    "》": "'",
    "—": "",
    "～": "",
    "~": "",
    "：": ",",
    "；": ",",
    ";": ",",
    ":": ",",
}

REPLACE_SYMBOL_REGEX = re.compile(
    "|".join(re.escape(p) for p in SYMBOLS_MAPPING.keys())
)


EMOJI_REGEX = re.compile(
    "["
    "\U0001F600-\U0001F64F"  # emoticons
    "\U0001F300-\U0001F5FF"  # symbols & pictographs
    "\U0001F680-\U0001F6FF"  # transport & map symbols
    "\U0001F1E0-\U0001F1FF"  # flags (iOS)
    "]+",
    flags=re.UNICODE,
)


def clean_text(text):
    # Clean the text
    text = text.strip()

    # Replace all chinese symbols with their english counterparts
    text = REPLACE_SYMBOL_REGEX.sub(lambda x: SYMBOLS_MAPPING[x.group()], text)

    # Remove emojis
    text = EMOJI_REGEX.sub(r"", text)

    # Remove continuous periods (...) and commas (,,,)
    text = re.sub(r"[.,]{2,}", lambda m: m.group()[0], text)

    return text
