dcl://dg_summer_2020

0xbf53c33235cbfc22cef5a61a83484b86342679c5

balanceOf keyboard_arrow_up

    function balanceOf(address owner) public view returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");

        return _ownedTokensCount[owner].current();
    }

ownerOf keyboard_arrow_up

    function ownerOf(uint256 tokenId) public view returns (address) {
        address owner = _tokenOwner[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");

        return owner;
    }

safeTransferFrom keyboard_arrow_up

    function safeTransferFrom(address from, address to, uint256 tokenId) public {
        safeTransferFrom(from, to, tokenId, "");
    }

transferFrom keyboard_arrow_up

    function transferFrom(address from, address to, uint256 tokenId) public {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(msg.sender, tokenId), "ERC721: transfer caller is not owner nor approved");

        _transferFrom(from, to, tokenId);
    }

approve keyboard_arrow_up

    function approve(address to, uint256 tokenId) public {
        address owner = ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(msg.sender == owner || isApprovedForAll(owner, msg.sender),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _tokenApprovals[tokenId] = to;
        emit Approval(owner, to, tokenId);
    }

getApproved keyboard_arrow_up

    function getApproved(uint256 tokenId) public view returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

setApprovalForAll keyboard_arrow_up

    function setApprovalForAll(address to, bool approved) public {
        require(to != msg.sender, "ERC721: approve to caller");

        _operatorApprovals[msg.sender][to] = approved;
        emit ApprovalForAll(msg.sender, to, approved);
    }

isApprovedForAll keyboard_arrow_up

    function isApprovedForAll(address owner, address operator) public view returns (bool) {
        return _operatorApprovals[owner][operator];
    }

safeTransferFrom keyboard_arrow_up

    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {
        transferFrom(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

name keyboard_arrow_up

    function name() external view returns (string memory) {
        return _name;
    }

symbol keyboard_arrow_up

    function symbol() external view returns (string memory) {
        return _symbol;
    }

tokenURI keyboard_arrow_up

    function tokenURI(uint256 _tokenId) external view returns (string memory) {
        require(_exists(_tokenId), "ERC721Metadata: received a URI query for a nonexistent token");
        return string(abi.encodePacked(baseURI, _tokenPaths[_tokenId]));
    }

supportsInterface keyboard_arrow_up

    function supportsInterface(bytes4 interfaceId) external view returns (bool) {
        return _supportedInterfaces[interfaceId];
    }

totalSupply keyboard_arrow_up

    function totalSupply() public view returns (uint256) {
        return _allTokens.length;
    }

tokenOfOwnerByIndex keyboard_arrow_up

    function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {
        require(index < balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
        return _ownedTokens[owner][index];
    }

tokenByIndex keyboard_arrow_up

    function tokenByIndex(uint256 index) public view returns (uint256) {
        require(index < totalSupply(), "ERC721Enumerable: global index out of bounds");
        return _allTokens[index];
    }

owner keyboard_arrow_up

    function owner() public view returns (address) {
        return _owner;
    }

isOwner keyboard_arrow_up

    function isOwner() public view returns (bool) {
        return msg.sender == _owner;
    }

renounceOwnership keyboard_arrow_up

    function renounceOwnership() public onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

transferOwnership keyboard_arrow_up

    function transferOwnership(address newOwner) public onlyOwner {
        _transferOwnership(newOwner);
    }

setBaseURI keyboard_arrow_up

    function setBaseURI(string memory _baseURI) public onlyOwner {
        emit BaseURI(baseURI, _baseURI);
        baseURI = _baseURI;
    }

setAllowed keyboard_arrow_up

    function setAllowed(address _operator, bool _allowed) public onlyOwner {
        require(_operator != address(0), "Invalid address");
        require(allowed[_operator] != _allowed, "You should set a different value");

        allowed[_operator] = _allowed;
        emit Allowed(_operator, _allowed);
    }

batchTransferFrom keyboard_arrow_up

    function batchTransferFrom(address _from, address _to, uint256[] calldata _tokenIds) external {
        for (uint256 i = 0; i < _tokenIds.length; i++) {
            transferFrom(_from, _to, _tokenIds[i]);
        }
    }

wearablesCount keyboard_arrow_up

    function wearablesCount() external view returns (uint256) {
        return wearables.length;
    }

completeCollection keyboard_arrow_up

    function completeCollection() external onlyOwner {
        require(!isComplete, "The collection is already completed");
        isComplete = true;
        emit Complete();
    }

addWearables keyboard_arrow_up

    function addWearables(bytes32[] calldata _wearableIds, uint256[] calldata _maxIssuances) external onlyOwner {
        require(_wearableIds.length == _maxIssuances.length, "Parameters should have the same length");

        for (uint256 i = 0; i < _wearableIds.length; i++) {
            addWearable(_wearableIds[i].bytes32ToString(), _maxIssuances[i]);
        }
    }

addWearable keyboard_arrow_up

    function addWearable(string memory _wearableId, uint256 _maxIssuance) public onlyOwner {
        require(!isComplete, "The collection is complete");
        bytes32 key = getWearableKey(_wearableId);

        require(maxIssuance[key] == 0, "Can not modify an existing wearable");
        require(_maxIssuance > 0, "Max issuance should be greater than 0");

        maxIssuance[key] = _maxIssuance;
        wearables.push(_wearableId);

        emit AddWearable(key, _wearableId, _maxIssuance);
    }

safeBatchTransferFrom keyboard_arrow_up

    function safeBatchTransferFrom(address _from, address _to, uint256[] memory _tokenIds) public {
        safeBatchTransferFrom(_from, _to, _tokenIds, "");
    }

safeBatchTransferFrom keyboard_arrow_up

    function safeBatchTransferFrom(address _from, address _to, uint256[] memory _tokenIds, bytes memory _data) public {
        for (uint256 i = 0; i < _tokenIds.length; i++) {
            safeTransferFrom(_from, _to, _tokenIds[i], _data);
        }
    }

getWearableKey keyboard_arrow_up

    function getWearableKey(string memory _wearableId) public pure returns (bytes32) {
        return keccak256(abi.encodePacked(_wearableId));
    }

issueToken keyboard_arrow_up

    function issueToken(address _beneficiary, string calldata _wearableId) external onlyAllowed {
        _issueToken(_beneficiary, _wearableId);
    }

issueTokens keyboard_arrow_up

    function issueTokens(address[] calldata _beneficiaries, bytes32[] calldata _wearableIds) external onlyAllowed {
        require(_beneficiaries.length == _wearableIds.length, "Parameters should have the same length");

        for(uint256 i = 0; i < _wearableIds.length; i++) {
            _issueToken(_beneficiaries[i], _wearableIds[i].bytes32ToString());
        }
    }