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32function createSellerInternal(
33    Seller memory _seller,
34    AuthToken calldata _authToken,
35    VoucherInitValues calldata _voucherInitValues
36) internal {
37    //Check active is not set to false
38    require(_seller.active, MUST_BE_ACTIVE);
39
40    //Admin address or AuthToken data must be present. A seller can have one or the other
41    require(
42        (_seller.admin == address(0) && _authToken.tokenType != AuthTokenType.None) ||
43            (_seller.admin != address(0) && _authToken.tokenType == AuthTokenType.None),
44        ADMIN_OR_AUTH_TOKEN
45    );
46
47    //Check that the addresses are unique to one seller Id, accross all roles. These addresses should always be checked. Treasury is not checked
48    require(
49        protocolLookups().sellerIdByOperator[_seller.operator] == 0 &&
50            protocolLookups().sellerIdByOperator[_seller.clerk] == 0 &&
51            protocolLookups().sellerIdByAdmin[_seller.operator] == 0 &&
52            protocolLookups().sellerIdByAdmin[_seller.clerk] == 0 &&
53            protocolLookups().sellerIdByClerk[_seller.operator] == 0 &&
54            protocolLookups().sellerIdByClerk[_seller.clerk] == 0,
55        SELLER_ADDRESS_MUST_BE_UNIQUE
56    );
57
58    //Do other uniqueness checks based on auth type
59    if (_seller.admin == address(0)) {
60        //Check that auth token is unique to this seller
61        require(
62            protocolLookups().sellerIdByAuthToken[_authToken.tokenType][_authToken.tokenId] == 0,
63            AUTH_TOKEN_MUST_BE_UNIQUE
64        );
65    } else {
66        //check that the admin address is unique to one seller Id, accross all roles
67        require(
68            protocolLookups().sellerIdByOperator[_seller.admin] == 0 &&
69                protocolLookups().sellerIdByAdmin[_seller.admin] == 0 &&
70                protocolLookups().sellerIdByClerk[_seller.admin] == 0,
71            SELLER_ADDRESS_MUST_BE_UNIQUE
72        );
73    }
74
75    // Get the next account Id and increment the counter
76    uint256 sellerId = protocolCounters().nextAccountId++;
77    _seller.id = sellerId;
78    storeSeller(_seller, _authToken);
79
80    // create clone and store its address cloneAddress
81    address voucherCloneAddress = cloneBosonVoucher(sellerId, _seller.operator, _voucherInitValues);
82    protocolLookups().cloneAddress[sellerId] = voucherCloneAddress;
83
84    // Notify watchers of state change
85    emit SellerCreated(sellerId, _seller, voucherCloneAddress, _authToken, msgSender());
86}