tempgen.transforms

import datetime
from tempgen.libs.num2t4ru import decimal2text

def ru_date_month_as_string_year():
    month_names = ['', 'января', 'февраля', 'марта', 'апреля', 'мая', 'июня', 'июля', 'августа', 'сентября', 'октября', 'ноября', 'декабря']
    now = datetime.datetime.today()
    return ' '.join([str(x) for x in [now.day, month_names[now.month], now.year]]) + 'г.'

def ru_monetary_ending_append(value, *args):
    temp = str(value).split('.')
    integral, fractional = temp if len(temp) > 1 else temp + ['']
    truncated = float('.'.join([integral, fractional[:1]]))
    monetary_ending = decimal2text(truncated, int_units=((u'рубль', u'рубля', u'рублей'), 'm')).split(' ')[-2]
    return '%s %s' % (value, monetary_ending)

class Transforms():
    """Class contains dictionary of function names and functions to be used in "pre" and "post" objects as "fn" property value in templates

    Attributes
    ----------
    name_transform_map : Dict[str, callable]
        Dictionary containing supported "functions" allowed in "pre" and "post" objects as "fn" property value in templates, uses function name as key and
        function itself as value, these functions are applied on entry value.
        Value argument is passed automatically, additional arguments to these functions are passed as "args" array.
        Transform functions are executed sequentially, with value from prefious transform being passed to the next one.
        Transforms used in "pre" object are applied to value from template entry when template is loaded, tempgen fields will contain already transformed value
        Transforms used in "post" object are applied to value taken from tempgen fields only when generated document is being saved, tempgen fields will not be affected
    """
    def __init__(self):
        self.name_transform_map = {
            'append': lambda value, postfix, *args: str(value) + postfix,
            'inverted_date': lambda *args: datetime.datetime.today().strftime('%Y%m%d')[2:],
            'ru_date_month_as_string_year': lambda *args: ru_date_month_as_string_year(),
            'ru_monetary_string_replace': lambda value, *args: "{:,.2f}".format(float(value)).replace(",", " ").replace('.', ','),
            'ru_monetary_as_string': lambda value, *args: decimal2text(float(value),
                int_units=((u'рубль', u'рубля', u'рублей'), 'm'),
                exp_units=((u'копейка', u'копейки', u'копеек'), 'f')
            ).capitalize(),
            'ru_monetary_ending_append': ru_monetary_ending_append,
        }

def ru_date_month_as_string_year():
    month_names = ['', 'января', 'февраля', 'марта', 'апреля', 'мая', 'июня', 'июля', 'августа', 'сентября', 'октября', 'ноября', 'декабря']
    now = datetime.datetime.today()
    return ' '.join([str(x) for x in [now.day, month_names[now.month], now.year]]) + 'г.'

def ru_monetary_ending_append(value, *args):
    temp = str(value).split('.')
    integral, fractional = temp if len(temp) > 1 else temp + ['']
    truncated = float('.'.join([integral, fractional[:1]]))
    monetary_ending = decimal2text(truncated, int_units=((u'рубль', u'рубля', u'рублей'), 'm')).split(' ')[-2]
    return '%s %s' % (value, monetary_ending)

class Transforms():
    """Class contains dictionary of function names and functions to be used in "pre" and "post" objects as "fn" property value in templates

    Attributes
    ----------
    name_transform_map : Dict[str, callable]
        Dictionary containing supported "functions" allowed in "pre" and "post" objects as "fn" property value in templates, uses function name as key and
        function itself as value, these functions are applied on entry value.
        Value argument is passed automatically, additional arguments to these functions are passed as "args" array.
        Transform functions are executed sequentially, with value from prefious transform being passed to the next one.
        Transforms used in "pre" object are applied to value from template entry when template is loaded, tempgen fields will contain already transformed value
        Transforms used in "post" object are applied to value taken from tempgen fields only when generated document is being saved, tempgen fields will not be affected
    """
    def __init__(self):
        self.name_transform_map = {
            'append': lambda value, postfix, *args: str(value) + postfix,
            'inverted_date': lambda *args: datetime.datetime.today().strftime('%Y%m%d')[2:],
            'ru_date_month_as_string_year': lambda *args: ru_date_month_as_string_year(),
            'ru_monetary_string_replace': lambda value, *args: "{:,.2f}".format(float(value)).replace(",", " ").replace('.', ','),
            'ru_monetary_as_string': lambda value, *args: decimal2text(float(value),
                int_units=((u'рубль', u'рубля', u'рублей'), 'm'),
                exp_units=((u'копейка', u'копейки', u'копеек'), 'f')
            ).capitalize(),
            'ru_monetary_ending_append': ru_monetary_ending_append,
        }