contract ILiquidPledgingPlugin {

    /// @notice Plugins are used (much like web hooks) to initiate an action
    ///  upon any donation, delegation, or transfer; this is an optional feature
    ///  and allows for extreme customization of the contract. This function
    ///  implements any action that should be initiated before a transfer.
    /// @param pledgeManager The admin or current manager of the pledge
    /// @param pledgeFrom This is the Id from which value will be transfered.
    /// @param pledgeTo This is the Id that value will be transfered to.    
    /// @param context The situation that is triggering the plugin:
    ///  0 -> Plugin for the owner transferring pledge to another party
    ///  1 -> Plugin for the first delegate transferring pledge to another party
    ///  2 -> Plugin for the second delegate transferring pledge to another party
    ///  ...
    ///  255 -> Plugin for the intendedProject transferring pledge to another party
    ///
    ///  256 -> Plugin for the owner receiving pledge to another party
    ///  257 -> Plugin for the first delegate receiving pledge to another party
    ///  258 -> Plugin for the second delegate receiving pledge to another party
    ///  ...
    ///  511 -> Plugin for the intendedProject receiving pledge to another party
    /// @param amount The amount of value that will be transfered.
    function beforeTransfer(
        uint64 pledgeManager,
        uint64 pledgeFrom,
        uint64 pledgeTo,
        uint64 context,
        uint amount ) returns (uint maxAllowed);

    /// @notice Plugins are used (much like web hooks) to initiate an action
    ///  upon any donation, delegation, or transfer; this is an optional feature
    ///  and allows for extreme customization of the contract. This function
    ///  implements any action that should be initiated after a transfer.
    /// @param pledgeManager The admin or current manager of the pledge
    /// @param pledgeFrom This is the Id from which value will be transfered.
    /// @param pledgeTo This is the Id that value will be transfered to.    
    /// @param context The situation that is triggering the plugin:
    ///  0 -> Plugin for the owner transferring pledge to another party
    ///  1 -> Plugin for the first delegate transferring pledge to another party
    ///  2 -> Plugin for the second delegate transferring pledge to another party
    ///  ...
    ///  255 -> Plugin for the intendedProject transferring pledge to another party
    ///
    ///  256 -> Plugin for the owner receiving pledge to another party
    ///  257 -> Plugin for the first delegate receiving pledge to another party
    ///  258 -> Plugin for the second delegate receiving pledge to another party
    ///  ...
    ///  511 -> Plugin for the intendedProject receiving pledge to another party
    ///  @param amount The amount of value that will be transfered.
    function afterTransfer(
        uint64 pledgeManager,
        uint64 pledgeFrom,
        uint64 pledgeTo,
        uint64 context,
        uint amount
    );
}
/// @dev `ILiquidPledgingPlugin` is the basic interface for any
///  liquid pledging plugin
function beforeTransfer(
        uint64 pledgeManager,
        uint64 pledgeFrom,
        uint64 pledgeTo,
        uint64 context,
        uint amount ) returns (uint maxAllowed);
/// @notice Plugins are used (much like web hooks) to initiate an action
///  upon any donation, delegation, or transfer; this is an optional feature
///  and allows for extreme customization of the contract. This function
///  implements any action that should be initiated before a transfer.
/// @param pledgeManager The admin or current manager of the pledge
/// @param pledgeFrom This is the Id from which value will be transfered.
/// @param pledgeTo This is the Id that value will be transfered to.    
/// @param context The situation that is triggering the plugin:
///  0 -> Plugin for the owner transferring pledge to another party
///  1 -> Plugin for the first delegate transferring pledge to another party
///  2 -> Plugin for the second delegate transferring pledge to another party
///  ...
///  255 -> Plugin for the intendedProject transferring pledge to another party
///
///  256 -> Plugin for the owner receiving pledge to another party
///  257 -> Plugin for the first delegate receiving pledge to another party
///  258 -> Plugin for the second delegate receiving pledge to another party
///  ...
///  511 -> Plugin for the intendedProject receiving pledge to another party
/// @param amount The amount of value that will be transfered.