How to handle case like Housing loan to pay the fix amount and system can deduct the principle and interest automatically in Treasury

Dear Treasury Guru,

I have one scenario from my client like a Housing Loan that the system can generate the principle and interest paid flow type automatically depend on interest and contract condition, I've never faced this scenario before so I'm not sure that Treasury can support or not.

for example : Loan amount = 500,000 USD, Fix amount = 50,000 per month, Interest rate = X%

                          Payment amount               Principle           |        Interest

1st month =               50,000           --->         15,000                      35,000

2nd month =              50,000          ----->        17,000                      33,000                   

3rd month =               50,000         ------>        19,000                      31,000

Please suggest how to let the system generate the Principle and Interest flow type folllow the example above.

Thanks

Pongrapee K.