# -*- encoding: utf-8 -*-

''' Calcula um reembolso dum empréstimo que amortiza mensalmente

: Constrói um Quadro de Amortìzaçäo do Crédito prestação POSTECIPADA |

Calculate The repayment of the loan amortized monthly

: Build a Credit amortization table'''

import math

while True:

try:

prazo = int(raw_input("Prazo (em periodos): ")) # Assegura k o "prazo" é inteiro

assert prazo > 0 and prazo < 601 #Assegura k o prazo é positivo e menor do k 601 periodos

break

except ValueError:

print('Error! "Prazo" must be interger number...') # garante k "prazo" é inteiro

except AssertionError:

print('Error! "Prazo" must be positive and reasonable ...') # garante k "prazo" > 0

while True:

try:

TaxaAnual = float(raw_input("Taxa Anual: "))

break

except ValueError:

print('Error! "Taxa Anual" must be floating number...')

while True:

try:

capital= float(raw_input("Capital: ")) # Assegura k o "capital" é float number

assert capital > 0 #Assegura k "capital" é positivo

break

except ValueError:

print('Error! "Capital" must be floating number...') # garante k "Capital" é um numero real

except AssertionError:

print('Error! "Capital" must be positive...') # garante k "Capital" > 0

#remaining_balance = capital + imposto_selo_4_por_cento

remaining_balance = capital

ipaid=[]

total_interest = 0

Capital_paid_in_this_IA = []

Taxa = TaxaAnual / 12

t = (1 - (1+Taxa)**(-prazo))/Taxa

Instalment_amount = remaining_balance / t

print "We'd have %5.3f prestacao, %5.3f capital inicial." % (Instalment_amount, capital)

print "De: Prestação: Interest Accru.: Capital: remaining balance:"

for num in range(prazo):

ipaid.append(num)

Capital_paid_in_this_IA.append(num)

#sum_balance.append(num)

ipaid[num] = Taxa * remaining_balance

total_interest += ipaid[num]

Capital_paid_in_this_IA[num] = Instalment_amount - ipaid[num]

remaining_balance = remaining_balance - Capital_paid_in_this_IA[num]

print " %3.d \t %7.2f \t %11.2f \t %7.2f \t %12.2f" %(num + 1, Instalment_amount, ipaid[num], Capital_paid_in_this_IA[num], abs(remaining_balance))