solidity 3 hotel booking

select guest account

send ether to owner

//logs

//send 1 ether to hotel

revert

The transaction has been reverted to the initial state.

Reason provided by the contract: "Not enought Ether provided.".

Debug the transaction to get more information.

transact to HotelRoom.(receive) pending ... 

 

//send 2 ether to  hotel

[vm] from: 0xAb8...35cb2to: HotelRoom.(receive) 0xd91...39138value: 2000000000000000000 weidata: 0xlogs: 1hash: 0xfec...dc117

transact to HotelRoom.(receive) pending ... 

 

//send 2 ether to hotel again

 [vm] from: 0xAb8...35cb2to: HotelRoom.(receive) 0xd91...39138value: 2000000000000000000 weidata: 0xlogs: 0hash: 0x5fa...6ed65

transact to HotelRoom.(receive) errored: VM error: revert.

revert

The transaction has been reverted to the initial state.

Reason provided by the contract: "Currently Occupied".

Debug the transaction to get more information.

-----------------------

//HotelRoom.sol

pragma solidity ^0.6.0;

contract HotelRoom {

    enum Statuses {Vacant, Occupied}

    Statuses currentStatus;

    

    event Occupy(address _occupant, uint _value);

    

    address payable public owner;

    

    constructor() public {

        owner = msg.sender;

        currentStatus = Statuses.Vacant;

    }

    

    modifier onlyWhileVacant {

        require(currentStatus == Statuses.Vacant, "Currently Occupied");

        _;

    }

    

    modifier costs(uint _amount){

        require(msg.value >= _amount, "Not enought Ether provided.");

        _;

    }

    

    receive() external payable onlyWhileVacant costs(2 ether){

        currentStatus = Statuses.Occupied;

        owner.transfer(msg.value);

        emit Occupy(msg.sender, msg.value);

    }

}

reference:

https://www.youtube.com/watch?v=YJ-D1RMI0T0