pragma solidity ^0.4.15;
import "./TwoPartyArbitrable.sol";

/** @title Arbitrable Transaction
 *  This is a a contract for an arbitrated transaction which can be reversed by the arbitrator.
 *  This can be used for buying goods, services and for paying freelancers.
 *  Party A is the payer. Party B is the payee.
contract ArbitrableTransaction is TwoPartyArbitrable {
    string constant RULING_OPTIONS = "Reimburse partyA;Pay partyB";
    uint8 constant AMOUNT_OF_CHOICES = 2; // The number of ruling options available.

    uint public amount; // Amount sent by party A.

    /** @dev Constructor. Choose the arbitrator. Should be called by party A (the payer).
     *  @param _arbitrator The arbitrator of the contract.
     *  @param _timeout Time after which a party automatically loose a dispute.
     *  @param _partyB The recipient of the transaction.
     *  @param _arbitratorExtraData Extra data for the arbitrator.
     *  @param _metaEvidence Link to meta-evidence JSON.
        Arbitrator _arbitrator, 
        uint _timeout, 
        address _partyB, 
        bytes _arbitratorExtraData, 
        string _metaEvidence
        TwoPartyArbitrable(_arbitrator,_timeout,_partyB,AMOUNT_OF_CHOICES,_arbitratorExtraData, _metaEvidence) 
        amount += msg.value;

    /** @dev Pay the party B. To be called when the good is delivered or the service rendered.
    function pay() public onlyPartyA {
        amount = 0;

    /** @dev Reimburse party A. To be called if the good or service can't be fully provided.
     *  @param _amountReimbursed Amount to reimburse in wei.
    function reimburse(uint _amountReimbursed) public onlyPartyB {
        require(_amountReimbursed <= amount, "Cannot reimburse an amount higher than the deposit.");
        amount -= _amountReimbursed;

    /** @dev Execute a ruling of a dispute. It reimburse the fee to the winning party.
     *  This need to be extended by contract inheriting from it.
     *  @param _disputeID ID of the dispute in the Arbitrator contract.
     *  @param _ruling Ruling given by the arbitrator. 1 : Reimburse the partyA. 2 : Pay the partyB.
    function executeRuling(uint _disputeID, uint _ruling) internal {
        if (_ruling==PARTY_A_WINS)
        else if (_ruling==PARTY_B_WINS)

        amount = 0;


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