constructor(
    address _manufacturerAddr,
    bytes32 _description,
    address[] memory _rawAddr,
    uint256 _quantity,
    address[] memory _transporterAddr,
    address _receiverAddr,
    uint256 RcvrType
);

Parameters

Name	Type	Description
`_manufacturerAddr`	`address`	The address of the manufacturer creating the batch.
`_description`	`bytes32`	A brief description of the batch.
`_rawAddr`	`address[]`	An array of addresses representing the raw materials used in the batch.
`_quantity`	`uint256`	The quantity of commodity in the batch.
`_transporterAddr`	`address[]`	An array of addresses representing the transporters involved in the shipment.
`_receiverAddr`	`address`	The address of the receiver of the batch.
`RcvrType`	`uint256`	An identifier for the type of receiver (1 for wholesaler, 2 for distributor).

getCommodityInfo

Returns information about the commodity batch.

function getCommodityInfo()
    public
    view
    returns (
        address _manufacturerAddr,
        bytes32 _description,
        address[] memory _rawAddr,
        uint256 _quantity,
        address[] memory _transporterAddr,
        address _distributor,
        address _finalConsumer
    );

Returns

Name	Type	Description
`_manufacturerAddr`	`address`	The address of the manufacturer.
`_description`	`bytes32`	A brief description of the commodity batch.
`_rawAddr`	`address[]`	An array of addresses representing the raw materials used in the batch.
`_quantity`	`uint256`	The quantity of commodity in the batch.
`_transporterAddr`	`address[]`	An array of addresses representing the transporters involved in the shipment.
`_distributor`	`address`	The address of the distributor.
`_finalConsumer`	`address`	The address of the finalConsumer.

getWDC

Returns the addresses of the wholesaler, distributor, and finalConsumer.

function getWDC() public view returns (address[3] memory WDP);

Returns

Name	Type	Description
`WDP`	`address[3]`	An array of 3 addresses representing the wholesaler, distributor, and finalConsumer.

getBatchIDStatus

Returns the current status of the commodity batch.

function getBatchIDStatus() public view returns (uint256);

Returns

Name	Type	Description
`<none>`	`uint256`	A uint representing the current status of the commodity batch.

pickCommodity

Updates the status of the commodity batch when it is picked up by a transporter.

function pickCommodity(address _transporterAddr) public;

Parameters

Name	Type	Description
`_transporterAddr`	`address`	The address of the transporter picking up the commodity.

updateTransporterArray

Adds a transporter to the array of transporters involved in the shipment.

function updateTransporterArray(address _transporterAddr) public;

Parameters

Name	Type	Description
`_transporterAddr`	`address`	The address of the transporter to add.

receivedCommodity

Updates the status of the commodity batch when it is received by a wholesaler or distributor.

function receivedCommodity(address _receiverAddr) public returns (uint256);

Parameters

Name	Type	Description
`_receiverAddr`	`address`	The address of the receiver (either wholesaler or distributor).

Returns

Name	Type	Description
`<none>`	`uint256`	A uint representing the new status of the commodity batch.

sendWtoD

Updates the distributor address and status of the commodity batch when it is sent from the wholesaler to the distributor.

function sendWtoD(address receiver, address sender) public;

Parameters

Name	Type	Description
`receiver`	`address`	The address of the distributor.
`sender`	`address`	The address of the wholesaler.

receivedWtoD

Updates the status of the commodity batch when it is received by the distributor from the wholesaler.

function receivedWtoD(address receiver) public;

Parameters

Name	Type	Description
`receiver`	`address`	The address of the distributor.

sendDtoC

Updates the finalConsumer address and status of the commodity batch when it is sent from the distributor to the finalConsumer.

function sendDtoC(address receiver, address sender) public;

Parameters

Name	Type	Description
`receiver`	`address`	The address of the finalConsumer.
`sender`	`address`	The address of the distributor.

receivedDtoC

Updates the status of the commodity batch when it is received by the finalConsumer from the distributor.

function receivedDtoC(address receiver) public;

Parameters

Name	Type	Description
`receiver`	`address`	The address of the finalConsumer.

Events

ShippmentUpdate

Emitted when there is an update to the shipment status.

event ShippmentUpdate(
    address indexed BatchID, address indexed Shipper, address indexed Receiver, uint256 TransporterType, uint256 Status
);

Errors

UnAuthorised_PickUp

error UnAuthorised_PickUp();

Only_Wholesaler_or_Distributor_Authorised

error Only_Wholesaler_or_Distributor_Authorised();

Product_not_picked_up_yet

error Product_not_picked_up_yet();

Wholesaler_is_not_Authorised

error Wholesaler_is_not_Authorised();

Distributor_is_not_Authorised

error Distributor_is_not_Authorised();

FinalConsumer_is_not_Authorised

error FinalConsumer_is_not_Authorised();

Package_at_Manufacturer

error Package_at_Manufacturer();

Enums

commodityStatus

Represents the status of a commodity in the supply chain.

enum commodityStatus {
    atManufacturer,
    pickedForW,
    pickedForD,
    deliveredAtW,
    deliveredAtD,
    pickedForC,
    deliveredAtC
}