pragma solidity ^0.4.17;

/*Now Bob wants to collect his fees(the remaining amount in the contract after 
returning the amount of deposit to Alice). He needs to add a new feature in order 
to withdraw the amount from the contract.*/

contract Car {
    
    string model;
    uint256 daily_rate;
   
    
    function Car(string argmodel,uint256 arg_daily_rate) payable public
    {
        model = argmodel;
        daily_rate = arg_daily_rate;
        
    }
    
   
    
    function getCarModel()  public view returns(string)
    {
        return model;
    }
    
    function setDailyRate(uint256 arg_dailyRate) public
    {
        
        daily_rate = arg_dailyRate;
    }
    
    function getDailyRate () public view returns (uint256)
    {
        return daily_rate;
    }
    
    function rent() payable public
    {
        
        require(msg.value > 1000000000000000000);
        
    }
    
    function getBalance() public view  returns(uint256)
    {
        return address(this).balance;
    }
    
    function return_car(uint256 noofdays) public
    {
        
        msg.sender.transfer((address(this).balance) - (noofdays * daily_rate));
    }
    
    function collect_fees() public
    {
        
        msg.sender.transfer((address(this).balance));
    }
    
}