// File: contracts/RENSA.sol



// SPDX-License-Identifier: UNLICENSED

pragma solidity 0.8.4;

import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "./libraries/RensaPayout.sol";
import "./interfaces/IRENSA.sol";
import "./RensaDistributionFactory.sol";

contract RENSA is ERC1155, Ownable, IRENSA {
    uint16 public constant override PROTOCOL_FEE = 1000;

    address payable public override RENSA_WALLET;
    address public crossmintAddress;

    RensaDistributionFactory public distributionFactory;

    mapping(string => uint256) public ipfsHashToOwnerTokenId;
    mapping(uint256 => uint256) public licenseTokenIdToEthCost;
    mapping(uint256 => uint256) public licenseTokenIdToRemainingLicenses;
    mapping(uint256 => string) public ownerTokenIdToIpfsHash;
    mapping(uint256 => address) public ownerTokenIdToDistributionAddress;
    mapping(uint256 => address) public ownerTokenIdToOwner;
    mapping(uint256 => uint256) public gameProposedAirdropAmount;
    mapping(uint256 => bool) public ownerTokenIsGame;
    mapping(address => bool) public isRensaCreator;

    string public name = "Rensa Games";
    string public baseUri = "https://rensa.games/api/tokens/polygon/";

    uint256 private nextId;

    constructor(
        address payable rensaWallet,
        address rensaOwner,
        address _distributionFactory
    ) ERC1155("https://rensa.games/api/tokens/polygon/{id}") {
        require(rensaWallet != address(0), "zero address");
        transferOwnership(rensaOwner);
        RENSA_WALLET = rensaWallet;
        distributionFactory = RensaDistributionFactory(_distributionFactory);
        nextId = 1;
    }

    // Centralized (only rensa can approve an airdrop)
    function approveAirdrop(uint256 id, uint256 amount) external onlyOwner {
        require(isLicenseTokenId(id), "Please submit a valid license token Id");
        require(
            amount <= licenseTokenIdToRemainingLicenses[id],
            "The amount approved is not less than or equal to the amount available"
        );
        gameProposedAirdropAmount[id] = amount;
    }

    function addCreator(address creator) external onlyOwner {
        isRensaCreator[creator] = true;
    }

    // Centralized (only game token holder can commit an airdrop, rensa must first approve)
    function airdrop(address[] memory accounts, uint256 id) external {
        uint256 ownerTokenId = licenseTokenIdToOwnerTokenId(id);
        require(
            balanceOf(_msgSender(), ownerTokenId) == 1,
            "Submitter does not own the owner token"
        );
        require(gameProposedAirdropAmount[id] >= accounts.length, "Submitted too many addresses");
        gameProposedAirdropAmount[id] -= accounts.length;
        licenseTokenIdToRemainingLicenses[id] -= accounts.length;
        for (uint256 i = 0; i < accounts.length; i++) {
            _mint(accounts[i], id, 1, "");
        }
    }

    // Centralized (onlyOwner) burn as an MVP implementation of moderation
    function burn(address account, uint256 id, uint256 amount) external onlyOwner {
        _burn(account, id, amount);
    }

    // Centralized (onlyOwner) burnBatch as an MVP implementation of moderation
    function burnBatch(
        address account,
        uint256[] memory ids,
        uint256[] memory amounts
    ) external onlyOwner {
        _burnBatch(account, ids, amounts);
    }

    function setBaseMetadataURI(string memory newURI) external onlyOwner {
        baseUri = newURI;
    }

    function mint(
        bool isGame,
        string memory ipfsHash,
        uint256 licenseQty,
        uint256 ethCostPerLicense,
        RensaPayout.Payout[] memory distribution
    ) external override {
        require(isRensaCreator[_msgSender()] == true, "Minter is not a rensa creator");
        require(licenseQty > 0, "license quantity = 0");
        require(isUnmintedIpfsHash(ipfsHash), "already minted for IPFS hash");
        ipfsHashToOwnerTokenId[ipfsHash] = nextId;
        ownerTokenIdToIpfsHash[nextId] = ipfsHash;

        uint256 ownerTokenID = nextId;

        nextId = nextId + 1;

        // Store the license cost and quantity.
        licenseTokenIdToEthCost[nextId] = ethCostPerLicense;
        licenseTokenIdToRemainingLicenses[nextId] = licenseQty;
        nextId = nextId + 1;

        address distributionAddress = distributionFactory.deploy(distribution, RENSA_WALLET);
        ownerTokenIdToOwner[ownerTokenID] = _msgSender();
        ownerTokenIdToDistributionAddress[ownerTokenID] = distributionAddress;
        ownerTokenIsGame[ownerTokenID] = isGame;

        // Mint the owner token (owned by caller).
        _mint(_msgSender(), ownerTokenID, 1, "");
        emit Mint(_msgSender(), ownerTokenID, licenseQty, ethCostPerLicense, isGame, ipfsHash);
    }

    function crossmint(address _to, uint256 licenseTokenId) public payable {
        uint256 ownerTokenId = licenseTokenIdToOwnerTokenId(licenseTokenId);

        require(licenseTokenIdToRemainingLicenses[licenseTokenId] > 0, "all licenses sold");
        require(msg.sender == crossmintAddress, "This function is for Crossmint only.");
        require(
            msg.value == licenseTokenIdToEthCost[licenseTokenId],
            "incorrect ETH payment amount"
        );

        licenseTokenIdToRemainingLicenses[licenseTokenId] =
            licenseTokenIdToRemainingLicenses[licenseTokenId] -
            1;

        _mint(_to, licenseTokenId, 1, "");

        address distributionAddress = ownerTokenIdToDistributionAddress[ownerTokenId];
        RensaDistribution(distributionAddress).sendPayouts{value: msg.value}();
    }

    function setCrossmintAddress(address _crossmintAddress) public onlyOwner {
        crossmintAddress = _crossmintAddress;
    }

    function purchaseLicense(uint256 licenseTokenId) external payable override {
        uint256 ownerTokenId = licenseTokenIdToOwnerTokenId(licenseTokenId);
        require(
            msg.value == licenseTokenIdToEthCost[licenseTokenId],
            "incorrect ETH payment amount"
        );
        require(licenseTokenIdToRemainingLicenses[licenseTokenId] > 0, "all licenses sold");

        address distributionAddress = ownerTokenIdToDistributionAddress[ownerTokenId];
        licenseTokenIdToRemainingLicenses[licenseTokenId] =
            licenseTokenIdToRemainingLicenses[licenseTokenId] -
            1;

        _mint(_msgSender(), licenseTokenId, 1, "");
        RensaDistribution(distributionAddress).sendPayouts{value: msg.value}();
    }

    function ownerTokenCount() external view override returns (uint256) {
        // Id is incremented by two (one for owner id, one for license id) per mint.
        return nextId / 2;
    }

    function isUnmintedIpfsHash(string memory ipfsHash) public view override returns (bool) {
        require(bytes(ipfsHash).length > 0, "empty string");
        return ipfsHashToOwnerTokenId[ipfsHash] == 0;
    }

    function isLicenseTokenId(uint256 tokenId) public view override returns (bool) {
        require(tokenId > 0, "invalid token id (zero)");
        require(tokenId < nextId, "invalid token id");
        // The id number of a license token is always even.
        return tokenId % 2 == 0;
    }

    function licenseTokenIdToOwnerTokenId(
        uint256 licenseTokenId
    ) public view override returns (uint256) {
        require(isLicenseTokenId(licenseTokenId), "not a license token id");
        return licenseTokenId - 1;
    }

    function ownerTokenIdToLicenseTokenId(
        uint256 ownerTokenId
    ) external view override returns (uint256) {
        require(!isLicenseTokenId(ownerTokenId), "not an owner token id");
        return ownerTokenId + 1;
    }

    function uri(uint256 id) public view override returns (string memory) {
        require(id > 0, "invalid token id (zero)");
        require(id < nextId, "invalid token id");
        if (id % 2 == 0) {
            return string(abi.encodePacked(baseUri, ownerTokenIdToIpfsHash[id - 1]));
        } else {
            return string(abi.encodePacked(baseUri, ownerTokenIdToIpfsHash[id]));
        }
    }

    // Modified to add check that `to` doesn't own the token yet.
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) public virtual override(ERC1155, IERC1155) {
        super.safeTransferFrom(from, to, id, amount, data);
        if (!isLicenseTokenId(id)) {
            ownerTokenIdToOwner[id] = to;
        }
    }

    // Modified to add check that `to` doesn't own the tokens yet.
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) public virtual override(ERC1155, IERC1155) {
        super.safeBatchTransferFrom(from, to, ids, amounts, data);
        for (uint256 i = 0; i < ids.length; ++i) {
            uint256 id = ids[i];
            if (!isLicenseTokenId(id)) {
                ownerTokenIdToOwner[id] = to;
            }
        }
    }
}

// File: @openzeppelin/contracts/token/ERC1155/ERC1155.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/ERC1155.sol)

pragma solidity ^0.8.0;

import "./IERC1155.sol";
import "./IERC1155Receiver.sol";
import "./extensions/IERC1155MetadataURI.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of the basic standard multi-token.
 * See https://eips.ethereum.org/EIPS/eip-1155
 * Originally based on code by Enjin: https://github.com/enjin/erc-1155
 *
 * _Available since v3.1._
 */
contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {
    using Address for address;

    // Mapping from token ID to account balances
    mapping(uint256 => mapping(address => uint256)) private _balances;

    // Mapping from account to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json
    string private _uri;

    /**
     * @dev See {_setURI}.
     */
    constructor(string memory uri_) {
        _setURI(uri_);
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC1155).interfaceId ||
            interfaceId == type(IERC1155MetadataURI).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC1155MetadataURI-uri}.
     *
     * This implementation returns the same URI for *all* token types. It relies
     * on the token type ID substitution mechanism
     * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
     *
     * Clients calling this function must replace the `\{id\}` substring with the
     * actual token type ID.
     */
    function uri(uint256) public view virtual override returns (string memory) {
        return _uri;
    }

    /**
     * @dev See {IERC1155-balanceOf}.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) public view virtual override returns (uint256) {
        require(account != address(0), "ERC1155: balance query for the zero address");
        return _balances[id][account];
    }

    /**
     * @dev See {IERC1155-balanceOfBatch}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] memory accounts, uint256[] memory ids)
        public
        view
        virtual
        override
        returns (uint256[] memory)
    {
        require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch");

        uint256[] memory batchBalances = new uint256[](accounts.length);

        for (uint256 i = 0; i < accounts.length; ++i) {
            batchBalances[i] = balanceOf(accounts[i], ids[i]);
        }

        return batchBalances;
    }

    /**
     * @dev See {IERC1155-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC1155-isApprovedForAll}.
     */
    function isApprovedForAll(address account, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[account][operator];
    }

    /**
     * @dev See {IERC1155-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) public virtual override {
        require(
            from == _msgSender() || isApprovedForAll(from, _msgSender()),
            "ERC1155: caller is not owner nor approved"
        );
        _safeTransferFrom(from, to, id, amount, data);
    }

    /**
     * @dev See {IERC1155-safeBatchTransferFrom}.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) public virtual override {
        require(
            from == _msgSender() || isApprovedForAll(from, _msgSender()),
            "ERC1155: transfer caller is not owner nor approved"
        );
        _safeBatchTransferFrom(from, to, ids, amounts, data);
    }

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function _safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: transfer to the zero address");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, to, _asSingletonArray(id), _asSingletonArray(amount), data);

        uint256 fromBalance = _balances[id][from];
        require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
        unchecked {
            _balances[id][from] = fromBalance - amount;
        }
        _balances[id][to] += amount;

        emit TransferSingle(operator, from, to, id, amount);

        _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function _safeBatchTransferFrom(
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
        require(to != address(0), "ERC1155: transfer to the zero address");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, to, ids, amounts, data);

        for (uint256 i = 0; i < ids.length; ++i) {
            uint256 id = ids[i];
            uint256 amount = amounts[i];

            uint256 fromBalance = _balances[id][from];
            require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
            unchecked {
                _balances[id][from] = fromBalance - amount;
            }
            _balances[id][to] += amount;
        }

        emit TransferBatch(operator, from, to, ids, amounts);

        _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data);
    }

    /**
     * @dev Sets a new URI for all token types, by relying on the token type ID
     * substitution mechanism
     * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
     *
     * By this mechanism, any occurrence of the `\{id\}` substring in either the
     * URI or any of the amounts in the JSON file at said URI will be replaced by
     * clients with the token type ID.
     *
     * For example, the `https://token-cdn-domain/\{id\}.json` URI would be
     * interpreted by clients as
     * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json`
     * for token type ID 0x4cce0.
     *
     * See {uri}.
     *
     * Because these URIs cannot be meaningfully represented by the {URI} event,
     * this function emits no events.
     */
    function _setURI(string memory newuri) internal virtual {
        _uri = newuri;
    }

    /**
     * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function _mint(
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: mint to the zero address");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, address(0), to, _asSingletonArray(id), _asSingletonArray(amount), data);

        _balances[id][to] += amount;
        emit TransferSingle(operator, address(0), to, id, amount);

        _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data);
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function _mintBatch(
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: mint to the zero address");
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);

        for (uint256 i = 0; i < ids.length; i++) {
            _balances[ids[i]][to] += amounts[i];
        }

        emit TransferBatch(operator, address(0), to, ids, amounts);

        _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);
    }

    /**
     * @dev Destroys `amount` tokens of token type `id` from `from`
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `from` must have at least `amount` tokens of token type `id`.
     */
    function _burn(
        address from,
        uint256 id,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC1155: burn from the zero address");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, address(0), _asSingletonArray(id), _asSingletonArray(amount), "");

        uint256 fromBalance = _balances[id][from];
        require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
        unchecked {
            _balances[id][from] = fromBalance - amount;
        }

        emit TransferSingle(operator, from, address(0), id, amount);
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     */
    function _burnBatch(
        address from,
        uint256[] memory ids,
        uint256[] memory amounts
    ) internal virtual {
        require(from != address(0), "ERC1155: burn from the zero address");
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, address(0), ids, amounts, "");

        for (uint256 i = 0; i < ids.length; i++) {
            uint256 id = ids[i];
            uint256 amount = amounts[i];

            uint256 fromBalance = _balances[id][from];
            require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
            unchecked {
                _balances[id][from] = fromBalance - amount;
            }
        }

        emit TransferBatch(operator, from, address(0), ids, amounts);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits a {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC1155: setting approval status for self");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning, as well as batched variants.
     *
     * The same hook is called on both single and batched variants. For single
     * transfers, the length of the `id` and `amount` arrays will be 1.
     *
     * Calling conditions (for each `id` and `amount` pair):
     *
     * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * of token type `id` will be  transferred to `to`.
     * - When `from` is zero, `amount` tokens of token type `id` will be minted
     * for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`
     * will be burned.
     * - `from` and `to` are never both zero.
     * - `ids` and `amounts` have the same, non-zero length.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {}

    function _doSafeTransferAcceptanceCheck(
        address operator,
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) private {
        if (to.isContract()) {
            try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) {
                if (response != IERC1155Receiver.onERC1155Received.selector) {
                    revert("ERC1155: ERC1155Receiver rejected tokens");
                }
            } catch Error(string memory reason) {
                revert(reason);
            } catch {
                revert("ERC1155: transfer to non ERC1155Receiver implementer");
            }
        }
    }

    function _doSafeBatchTransferAcceptanceCheck(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) private {
        if (to.isContract()) {
            try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns (
                bytes4 response
            ) {
                if (response != IERC1155Receiver.onERC1155BatchReceived.selector) {
                    revert("ERC1155: ERC1155Receiver rejected tokens");
                }
            } catch Error(string memory reason) {
                revert(reason);
            } catch {
                revert("ERC1155: transfer to non ERC1155Receiver implementer");
            }
        }
    }

    function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) {
        uint256[] memory array = new uint256[](1);
        array[0] = element;

        return array;
    }
}

// File: @openzeppelin/contracts/access/Ownable.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// File: contracts/libraries/RensaPayout.sol



// SPDX-License-Identifier: UNLICENSED

pragma solidity 0.8.4;

library RensaPayout{
    struct Payout{
        address payable contributor;
        uint16 percentage;
    }

    function isValidDistribution(Payout[] memory distribution) 
        external 
        pure 
        returns(bool)
    {
        uint16 totalPercentage;
        for(uint i = 0; i < distribution.length; i++){
            totalPercentage = add(totalPercentage, distribution[i].percentage);
        }
        if(totalPercentage == 10000 ){
            return true;
        }
        else{
            return false;
        }
    }

    function add(uint16 a, uint16 b) 
        internal 
        pure 
        returns (uint16) 
    {
        uint16 c = a + b;
        require(c >= a, "Overflow in distribution");
        return c;
    }

}
// File: contracts/interfaces/IRENSA.sol



// SPDX-License-Identifier: UNLICENSED

pragma solidity 0.8.4;

import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";

import "../libraries/RensaPayout.sol";

interface IRENSA is IERC1155 {
    /**
     * @dev Emitted when an Owner Token is minted.
     */
    event Mint(
        address indexed to,
        uint256 ownerTokenId,
        uint256 licenseQty,
        uint256 ethCostPerLicense,
        bool isGame,
        string ipfsHash
    );

    /**
     * Mints an Owner Token corresponding to the `ipfsHash` for the caller, and the license information will be stored.
     * `isGame` is true if minting a game token, or false for an asset token.
     * `isGame` will not be stored, but will be emitted in a Mint event.
     * `ipfsHash` must be non-empty and not previously used for minting.
     * `licenseQty` and `ethCostPerLicense` must both be positive.
     */
    function mint(
        bool isGame,
        string memory ipfsHash,
        uint256 licenseQty,
        uint256 ethCostPerLicenses,
        RensaPayout.Payout[] memory distribution
    ) external;

    /**
     * Purchases (mints) a License Token with id `licenseTokenId` for the caller.
     * `RENSA_WALLET` will receive `PROTOCOL_FEE`% of the ETH amount, and the remainder is sent to `ownerTokenOwner`.
     * The exact ETH amount (`licenseTokenIdToEthCost(licenseTokenId)`) must be sent with the function call.
     * There must be enough licenses remaining (`licenseTokenIdToRemainingLicenses(licenseTokenId)`).
     * The owner of the Owner Token corresponding to `licenseTokenId` must be found by the client via emitted events,
     * since it isn't stored on-chain.
     */
    function purchaseLicense(uint256 licenseTokenId)
        external
        payable;

    /**
     * The protocol fee for license purchases.
     * Needs to be divided by 10,000.
     * E.g. if the value is 123, this is a 123 / 10000 = 0.0123 = 1.23% protocol fee.
     */
    // solhint-disable-next-line func-name-mixedcase
    function PROTOCOL_FEE() external view returns (uint16);

    /**
     * The recipient address for the `PROTOCOL_FEE`.
     */
    // solhint-disable-next-line func-name-mixedcase
    function RENSA_WALLET() external view returns (address payable);

    /**
     * The number of Owner Tokens that have been minted.
     */
    function ownerTokenCount() external view returns (uint256);

    /**
     * Checks whether `ipfsHash` has been used in `mint()` yet.
     */
    function isUnmintedIpfsHash(string memory ipfsHash) external view returns (bool);

    /**
     * Checks whether `tokenId` is a License Token id.
     * If it isn't a License Token, it's an Owner Token.
     */
    function isLicenseTokenId(uint256 tokenId) external view returns (bool);

    /**
     * Gets the License Token id corresponding to `ownerTokenId`.
     * The Owner Token must already be minted.
     */
    function ownerTokenIdToLicenseTokenId(uint256 ownerTokenId) external view returns (uint256);

    /**
     * Gets the Owner Token id corresponding to `licenseTokenId`.
     * The Owner Token must already be minted.
     */
    function licenseTokenIdToOwnerTokenId(uint256 licenseTokenId) external view returns (uint256);
}

// File: contracts/RensaDistributionFactory.sol



// SPDX-License-Identifier: UNLICENSED

pragma solidity 0.8.4;

import "./RensaDistribution.sol";
import "./interfaces/IRensaDistributionFactory.sol";
import "./libraries/RensaPayout.sol";

contract RensaDistributionFactory is IRensaDistributionFactory{

    //TODO add owner controls, meeting first to decide fully which set of owner controls we're using.
    address public factory;
    
    address public override owner;

    constructor(){
        owner = msg.sender;
    }

    function deploy(
        RensaPayout.Payout[] memory distribution,
        address payable rensaAddress
    ) 
        external 
        returns (address distributionAddress)
    {
        factory = address(this);
        distributionAddress = address(new RensaDistribution(distribution, rensaAddress));
        delete factory;
    }
}
// File: @openzeppelin/contracts/token/ERC1155/IERC1155.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC1155 compliant contract, as defined in the
 * https://eips.ethereum.org/EIPS/eip-1155[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155 is IERC165 {
    /**
     * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
     */
    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);

    /**
     * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
     * transfers.
     */
    event TransferBatch(
        address indexed operator,
        address indexed from,
        address indexed to,
        uint256[] ids,
        uint256[] values
    );

    /**
     * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
     * `approved`.
     */
    event ApprovalForAll(address indexed account, address indexed operator, bool approved);

    /**
     * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
     *
     * If an {URI} event was emitted for `id`, the standard
     * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
     * returned by {IERC1155MetadataURI-uri}.
     */
    event URI(string value, uint256 indexed id);

    /**
     * @dev Returns the amount of tokens of token type `id` owned by `account`.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) external view returns (uint256);

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
        external
        view
        returns (uint256[] memory);

    /**
     * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
     *
     * Emits an {ApprovalForAll} event.
     *
     * Requirements:
     *
     * - `operator` cannot be the caller.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(address account, address operator) external view returns (bool);

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes calldata data
    ) external;

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata ids,
        uint256[] calldata amounts,
        bytes calldata data
    ) external;
}

// File: @openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155Receiver.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev _Available since v3.1._
 */
interface IERC1155Receiver is IERC165 {
    /**
        @dev Handles the receipt of a single ERC1155 token type. This function is
        called at the end of a `safeTransferFrom` after the balance has been updated.
        To accept the transfer, this must return
        `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
        (i.e. 0xf23a6e61, or its own function selector).
        @param operator The address which initiated the transfer (i.e. msg.sender)
        @param from The address which previously owned the token
        @param id The ID of the token being transferred
        @param value The amount of tokens being transferred
        @param data Additional data with no specified format
        @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
    */
    function onERC1155Received(
        address operator,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external returns (bytes4);

    /**
        @dev Handles the receipt of a multiple ERC1155 token types. This function
        is called at the end of a `safeBatchTransferFrom` after the balances have
        been updated. To accept the transfer(s), this must return
        `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
        (i.e. 0xbc197c81, or its own function selector).
        @param operator The address which initiated the batch transfer (i.e. msg.sender)
        @param from The address which previously owned the token
        @param ids An array containing ids of each token being transferred (order and length must match values array)
        @param values An array containing amounts of each token being transferred (order and length must match ids array)
        @param data Additional data with no specified format
        @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
    */
    function onERC1155BatchReceived(
        address operator,
        address from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external returns (bytes4);
}

// File: @openzeppelin/contracts/token/ERC1155/extensions/IERC1155MetadataURI.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/extensions/IERC1155MetadataURI.sol)

pragma solidity ^0.8.0;

import "../IERC1155.sol";

/**
 * @dev Interface of the optional ERC1155MetadataExtension interface, as defined
 * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155MetadataURI is IERC1155 {
    /**
     * @dev Returns the URI for token type `id`.
     *
     * If the `\{id\}` substring is present in the URI, it must be replaced by
     * clients with the actual token type ID.
     */
    function uri(uint256 id) external view returns (string memory);
}

// File: @openzeppelin/contracts/utils/Address.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: @openzeppelin/contracts/utils/Context.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// File: @openzeppelin/contracts/utils/introspection/ERC165.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// File: @openzeppelin/contracts/utils/introspection/IERC165.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// File: contracts/RensaDistribution.sol



// SPDX-License-Identifier: UNLICENSED

pragma solidity 0.8.4;

import "./RensaDistributionFactory.sol";
import "./libraries/RensaPayout.sol";

contract RensaDistribution{

    uint16 public constant PROTOCOL_FEE = 1000;
    address payable public RENSA_WALLET;

    address public immutable factory;
    uint256 public balance;

    RensaPayout.Payout[] public payouts;

    bool private locked;

    constructor(
        RensaPayout.Payout[] memory distribution,
        address payable rensaAddress
    ){
        factory = RensaDistributionFactory(msg.sender).factory();
        RENSA_WALLET = rensaAddress;
        for(uint256 i=0; i<distribution.length; i++){
            payouts.push(distribution[i]);
        }
        payouts.push(RensaPayout.Payout({contributor: RENSA_WALLET, percentage: PROTOCOL_FEE}));
        require(RensaPayout.isValidDistribution(payouts) == true, "RensaDistribution: Distribution total does not sum to 100%");
        locked = false;
    }

    function sendPayouts() payable external {
        require(!locked, "Hit reentrancy guard");
        locked = true;
        for(uint256 i = 0; i < payouts.length; i++){
            address payable recipient = payouts[i].contributor;
            uint16 multiplier = payouts[i].percentage;
            balance -= ((balance * multiplier)/10000);
            (bool sent, bytes memory data) = recipient.call{value: ((msg.value * multiplier) / 10000)}("");
            require(sent, "Failed to send a payout");
        }
        locked = false;
    }
}
// File: contracts/interfaces/IRensaDistributionFactory.sol



// SPDX-License-Identifier: UNLICENSED

pragma solidity 0.8.4;

import "../libraries/RensaPayout.sol";

interface IRensaDistributionFactory {
    
    function owner() external view returns (address);
    
}