# coding: utf-8
import re
import yaml

YAML_FILE = "story/story_data.yaml"

from profanityfilter import ProfanityFilter
pf = ProfanityFilter()

def get_context(key):
    with open(YAML_FILE, 'r') as stream:
        data_loaded = yaml.safe_load(stream)

    return data_loaded["contexts"][key]

def get_allowed_ctrl_verbs():
    with open(YAML_FILE, 'r') as stream:
        data_loaded = yaml.safe_load(stream)

    return data_loaded["ctrl_verbs"]["movement"] + data_loaded["ctrl_verbs"]["non_movement"]

def get_story_start(key):
    with open(YAML_FILE, 'r') as stream:
        data_loaded = yaml.safe_load(stream)

    return data_loaded["prompts"][key]


def get_action_verbs(key):
    with open(YAML_FILE, 'r') as stream:
        data_loaded = yaml.safe_load(stream)

    return data_loaded["action_verbs"][key]


def get_ctrl_verbs(key):
    with open(YAML_FILE, 'r') as stream:
        data_loaded = yaml.safe_load(stream)

    return data_loaded["ctrl_verbs"][key]


def get_rooms(key):
    with open(YAML_FILE, 'r') as stream:
        data_loaded = yaml.safe_load(stream)

    return data_loaded["rooms"][key]


def remove_profanity(text):
    return pf.censor(text)


def cut_trailing_quotes(text):
    num_quotes = text.count('"')
    if num_quotes % 2 is 0:
        return text
    else:
        final_ind = text.rfind('"')
        return text[:final_ind]

    
def split_first_sentence(text):
    first_period = text.find('.')
    first_exclamation = text.find('!')
    
    if first_exclamation < first_period and first_exclamation > 0:
        split_point = first_exclamation+1
    elif first_period > 0:
        split_point = first_period+1
    else:
        split_point = text[0:20]
        
    return text[0:split_point], text[split_point:]

    
def cut_trailing_sentence(text):
    text = standardize_punctuation(text)
    last_punc = max(text.rfind('.'), text.rfind("!"), text.rfind("?"))

    if last_punc > 0:
        text = text[0:last_punc+1]

    return cut_trailing_quotes(text)


def replace_outside_quotes(text, current_word, repl_word):
    text = standardize_punctuation(text)

    reg_expr = re.compile(current_word + '(?=([^"]*"[^"]*")*[^"]*$)')

    output = reg_expr.sub(repl_word, text)
    return output

    

def capitalize(word):
    return word[0].upper() + word[1:]
    

def mapping_variation_pairs(mapping):
    mapping_list = []
    mapping_list.append((" " + mapping[0]+" ", " " + mapping[1]+" "))
    mapping_list.append((" " + capitalize(mapping[0]) + " ", " " + capitalize(mapping[1]) + " "))

    # Change you it's before a punctuation
    if mapping[0] is "you":
        mapping = ("you", "me")
    mapping_list.append((" " + mapping[0]+",", " " + mapping[1]+","))
    mapping_list.append((" " + mapping[0]+"\?", " " + mapping[1]+"\?"))
    mapping_list.append((" " + mapping[0]+"\!", " " + mapping[1]+"\!"))
    mapping_list.append((" " + mapping[0] + "\.", " " + mapping[1] + "."))

    return mapping_list


first_to_second_mappings = [
    ("I'm", "you're"),
    ("Im", "you're"),
    ("Ive", "you've"),
    ("I am", "you are"),
    ("was I", "were you"),
    ("am I", "are you"),
    ("wasn't I", "weren't you"),
    ("I", "you"),
    ("I'd", "you'd"),
    ("i", "you"),
    ("I've", "you've"),
    ("was I", "were you"),
    ("am I", "are you"),
    ("wasn't I", "weren't you"),
    ("I", "you"),
    ("I'd", "you'd"),
    ("i", "you"),
    ("I've", "you've"),
    ("I was", "you were"),
    ("my", "your"),
    ("we","you"),
    ("we're", "you're"),
    ("mine","yours"),
    ("me", "you"),
    ("us", "you"),
    ("our", "your"),
    ("I'll", "you'll"),
    ("myself", "yourself")
]

second_to_first_mappings = [
    ("you're", "I'm"),
    ("your", "my"),
    ("you are", "I am"),
    ("you were", "I was"),
    ("are you", "am I"),
    ("you", "I"),
    ("you", "me"),
    ("you'll", "I'll"),
    ("yourself", "myself"),
    ("you've", "I've")
]

def capitalize_helper(string):
    string_list = list(string)
    string_list[0] = string_list[0].upper()
    return "".join(string_list)


def capitalize_first_letters(text):
    first_letters_regex = re.compile(r'((?<=[\.\?!]\s)(\w+)|(^\w+))')

    def cap(match):
        return (capitalize_helper(match.group()))

    result = first_letters_regex.sub(cap, text)
    return result

def standardize_punctuation(text):
    text = text.replace("’", "'")
    text = text.replace("`", "'")
    text = text.replace('“', '"')
    text = text.replace('”', '"')
    return text


def first_to_second_person(text):
    text = " " + text
    text = standardize_punctuation(text)
    for pair in first_to_second_mappings:
        variations = mapping_variation_pairs(pair)
        for variation in variations:
            text = replace_outside_quotes(text, variation[0], variation[1])

    return capitalize_first_letters(text[1:])

def second_to_first_person(text):
    text = " " + text
    text = standardize_punctuation(text)
    for pair in second_to_first_mappings:
        variations = mapping_variation_pairs(pair)
        for variation in variations:
            text = replace_outside_quotes(text, variation[0], variation[1])

    return capitalize_first_letters(text[1:])


if __name__ == '__main__':
    result = 'The only thing they can tell you is, "We have nowhere else to…"'
    result = result.replace('."', '".')
    result = result.replace("#", "")
    result = result.replace("*", "")
    result = first_to_second_person(result)
    result = remove_profanity(result)

    while ("\n \n \n " in result):
        result = result.replace("\n \n \n ", "\n \n ")

    print(result)