-- Based on example3.ju in anoma/juvix

module Example3;

import Prelude;

record Account {
   balance : Nat;
   name    : String;
};

record Transaction {
  sender   : Account;
  receiver : Account;
};

record Storage { trans : Transaction; };

determine-maximum-withdraw : String -> Nat;
determine-maximum-withdraw s := 
  if s === "bob" then 30
  else if s === "maria" then 50
  else 0;

accept-withdraws-from : Storage -> Storage -> Bool;
accept-withdraws-from initial final :=
  let { withdrawl-amount :=
    determine-maximum-withdraw initial.trans.receiver.name;
  } in 
  withdrawl-amount >= final.trans.sender.balance - initial.trans.sender.balance;

end Example3;