ingadhoc/odoo-argentina

UNIDADES = (
    '',
    'UN ',
    'DOS ',
    'TRES ',
    'CUATRO ',
    'CINCO ',
    'SEIS ',
    'SIETE ',
    'OCHO ',
    'NUEVE ',
    'DIEZ ',
    'ONCE ',
    'DOCE ',
    'TRECE ',
    'CATORCE ',
    'QUINCE ',
    'DIECISEIS ',
    'DIECISIETE ',
    'DIECIOCHO ',
    'DIECINUEVE ',
    'VEINTE '
)

DECENAS = (
    'VENTI',
    'TREINTA ',
    'CUARENTA ',
    'CINCUENTA ',
    'SESENTA ',
    'SETENTA ',
    'OCHENTA ',
    'NOVENTA ',
    'CIEN '
)

CENTENAS = (
    'CIENTO ',
    'DOSCIENTOS ',
    'TRESCIENTOS ',
    'CUATROCIENTOS ',
    'QUINIENTOS ',
    'SEISCIENTOS ',
    'SETECIENTOS ',
    'OCHOCIENTOS ',
    'NOVECIENTOS '
)

def to_word(number):
    ans = to_word_int(int(number))
    # ans = to_word_int(int(number)) + 'PESOS'
    centavos = int(round((number - int(number)), 2) * 100)
    if centavos > 0:
        ans += ' CON ' + to_word_int(centavos) + 'CENTAVOS'
    # return ans.title()
    # we prefer only first letter in upper case
    return ans.capitalize()
    

def to_word_int(number):
    """
    Converts a number into string representation
    """
    converted = ''
    
    if number == 0:
        return 'CERO '
        
    if not (0 < number < 999999999):
        return 'No es posible convertir el numero a letras'
 
    number_str = str(number).zfill(9)
    millones = number_str[:3]
    miles = number_str[3:6]
    cientos = number_str[6:]
 
    if(millones):
        if(millones == '001'):
            converted += 'UN MILLON '
        elif(int(millones) > 0):
            converted += '%sMILLONES ' % __convertNumber(millones)
 
    if(miles):
        if(miles == '001'):
            converted += 'UN MIL '
        elif(int(miles) > 0):
            converted += '%sMIL ' % __convertNumber(miles)
 
    if(cientos):
        if(cientos == '001'):
            converted += 'UN '
        elif(int(cientos) > 0):
            converted += '%s' % __convertNumber(cientos)
 
    #converted += 'PESOS'
 
    #return converted.title()
    return converted
 
def __convertNumber(n):
    """
    Max length must be 3 digits
    """
    output = ''
 
    if(n == '100'):
        output = "CIEN "
    elif(n[0] != '0'):
        output = CENTENAS[int(n[0])-1]
 
    k = int(n[1:])
    if(k <= 20):
        output += UNIDADES[k]
    else:
        if((k > 30) & (n[2] != '0')):
            output += '%sY %s' % (DECENAS[int(n[1])-2], UNIDADES[int(n[2])])
        else:
            output += '%s%s' % (DECENAS[int(n[1])-2], UNIDADES[int(n[2])])
 
    return output