update all contracts
This commit is contained in:
parent
88c5aa6ec8
commit
868fab32c4
|
|
@ -0,0 +1,74 @@
|
|||
// SPDX-License-Identifier: MIT
|
||||
pragma solidity ^0.8.0;
|
||||
|
||||
import "@openzeppelin/contracts/access/Ownable.sol";
|
||||
import "./DTLToken.sol";
|
||||
import "./NftCertificate.sol";
|
||||
|
||||
contract CubLearn is Ownable {
|
||||
DTLToken dtlContract;
|
||||
NftCertificate cubcertContract;
|
||||
|
||||
uint256 public cashbackPercentage;
|
||||
|
||||
// course id => price in DTL
|
||||
mapping(string => uint256) private coursePrices;
|
||||
|
||||
// course id => student address => is enrolled
|
||||
mapping(string => mapping(address => bool)) private enrolledCourses;
|
||||
|
||||
// course id => student address => is certificate issued
|
||||
mapping(string => mapping(address => bool)) private issuedCertificates;
|
||||
|
||||
constructor(address dtlContractAddress, address cubcertContractAddress) Ownable(msg.sender) {
|
||||
dtlContract = DTLToken(dtlContractAddress);
|
||||
cubcertContract = NftCertificate(cubcertContractAddress);
|
||||
|
||||
coursePrices["1"] = 300;
|
||||
coursePrices["2"] = 500;
|
||||
coursePrices["3"] = 200;
|
||||
cashbackPercentage = 50;
|
||||
}
|
||||
|
||||
function setCashbackPercentage(uint256 newValue) external onlyOwner {
|
||||
require(newValue <= 100, "Cashback percentage cannot be more than 100.");
|
||||
|
||||
cashbackPercentage = newValue;
|
||||
}
|
||||
|
||||
function enroll(string memory courseId) external {
|
||||
require(coursePrices[courseId] != 0, "Course not found.");
|
||||
|
||||
dtlContract.transferFrom(msg.sender, address(this), coursePrices[courseId]);
|
||||
|
||||
enrolledCourses[courseId][msg.sender] = true;
|
||||
}
|
||||
|
||||
function finishCourse(
|
||||
string memory courseId,
|
||||
string memory studentFullName,
|
||||
string memory courseName,
|
||||
string memory instructorFullName
|
||||
) external {
|
||||
require(enrolledCourses[courseId][msg.sender], "Must be enrolled in course.");
|
||||
require(!issuedCertificates[courseId][msg.sender], "Certificate already issued.");
|
||||
|
||||
cubcertContract.mintCertificate(msg.sender, studentFullName, courseName, instructorFullName);
|
||||
|
||||
// Mark the certificate as issued
|
||||
issuedCertificates[courseId][msg.sender] = true;
|
||||
|
||||
// Cashback
|
||||
uint256 cashbackAmount = coursePrices[courseId] * cashbackPercentage / 100;
|
||||
dtlContract.transfer(msg.sender, cashbackAmount);
|
||||
}
|
||||
|
||||
function getDTLBalance() external view onlyOwner returns (uint256) {
|
||||
return dtlContract.balanceOf(address(this));
|
||||
}
|
||||
|
||||
function transferAllDTLBalanceToMe() external onlyOwner {
|
||||
uint256 balance = dtlContract.balanceOf(address(this));
|
||||
dtlContract.transfer(msg.sender, balance);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,18 @@
|
|||
// SPDX-License-Identifier: MIT
|
||||
pragma solidity ^0.8.0;
|
||||
|
||||
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
|
||||
|
||||
contract DTLToken is ERC20 {
|
||||
constructor(address initialHolder) ERC20("Digital Turkish Lira", "DTL") {
|
||||
_mint(initialHolder, 1000000000);
|
||||
}
|
||||
|
||||
function decimals() public view virtual override returns (uint8) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
function approveMax(address spender) external returns (bool) {
|
||||
return approve(spender, totalSupply());
|
||||
}
|
||||
}
|
||||
|
|
@ -8,100 +8,92 @@ import "@openzeppelin/contracts/utils/Base64.sol";
|
|||
contract NftCertificate is ERC721 {
|
||||
using Strings for uint256;
|
||||
|
||||
uint256 public nextTokenId;
|
||||
uint256 public nextTokenId;
|
||||
|
||||
mapping(uint256 => CertificateInfo) private certificateInfoMapping;
|
||||
mapping(uint256 => CertificateInfo) private certificateInfoMapping;
|
||||
|
||||
// course id => student address => is cert issued
|
||||
mapping(string => mapping(address => bool)) private issuedCertificates;
|
||||
struct CertificateInfo {
|
||||
string studentFullName;
|
||||
string courseName;
|
||||
string instructorFullName;
|
||||
}
|
||||
|
||||
struct CertificateInfo {
|
||||
string studentFullName;
|
||||
string courseName;
|
||||
string instructorFullName;
|
||||
}
|
||||
|
||||
constructor() ERC721("CubLearn Certificate", "CUBCERT") {}
|
||||
|
||||
function mintCertificate(
|
||||
string memory courseId,
|
||||
string memory studentFullName,
|
||||
string memory courseName,
|
||||
string memory instructorFullName
|
||||
) external {
|
||||
require(!issuedCertificates[courseId][msg.sender], "Certificate already issued.");
|
||||
constructor() ERC721("CubLearn Certificate", "CUBCERT") {}
|
||||
|
||||
function mintCertificate(
|
||||
address recipient,
|
||||
string memory studentFullName,
|
||||
string memory courseName,
|
||||
string memory instructorFullName
|
||||
) external {
|
||||
uint256 tokenId = nextTokenId;
|
||||
|
||||
_storeCertificateInfo(tokenId, studentFullName, courseName, instructorFullName);
|
||||
|
||||
_safeMint(msg.sender, tokenId);
|
||||
_safeMint(recipient, tokenId);
|
||||
|
||||
// Mark the certificate as issued
|
||||
issuedCertificates[courseId][msg.sender] = true;
|
||||
nextTokenId++;
|
||||
}
|
||||
|
||||
nextTokenId++;
|
||||
}
|
||||
function _storeCertificateInfo(
|
||||
uint256 tokenId,
|
||||
string memory studentFullName,
|
||||
string memory courseName,
|
||||
string memory instructorFullName
|
||||
) internal {
|
||||
certificateInfoMapping[tokenId] = CertificateInfo({
|
||||
studentFullName: studentFullName,
|
||||
courseName: courseName,
|
||||
instructorFullName: instructorFullName
|
||||
});
|
||||
}
|
||||
|
||||
function _storeCertificateInfo(
|
||||
uint256 tokenId,
|
||||
string memory studentFullName,
|
||||
string memory courseName,
|
||||
string memory instructorFullName
|
||||
) internal {
|
||||
certificateInfoMapping[tokenId] = CertificateInfo({
|
||||
studentFullName: studentFullName,
|
||||
courseName: courseName,
|
||||
instructorFullName: instructorFullName
|
||||
});
|
||||
}
|
||||
|
||||
function getCertificateInfo(uint256 tokenId)
|
||||
external
|
||||
view
|
||||
returns (
|
||||
CertificateInfo memory certInfo
|
||||
)
|
||||
{
|
||||
return certificateInfoMapping[tokenId];
|
||||
}
|
||||
function getCertificateInfo(uint256 tokenId)
|
||||
external
|
||||
view
|
||||
returns (
|
||||
CertificateInfo memory certInfo
|
||||
)
|
||||
{
|
||||
return certificateInfoMapping[tokenId];
|
||||
}
|
||||
|
||||
function _getSvg(uint256 tokenId) internal view returns (string memory) {
|
||||
CertificateInfo storage certInfo = certificateInfoMapping[tokenId];
|
||||
string memory svg = string(
|
||||
abi.encodePacked(
|
||||
unicode"data:image/svg+xml;utf8,<svg width='1024' height='1024' version='1.1' viewBox='0 0 270.93 270.93' xmlns='http://www.w3.org/2000/svg'><g stroke-width='1.75'><rect width='270.93' height='270.93' fill='#fff'/><text x='15.531887' y='33.715561' fill='#000000' font-family='Avenir' font-size='25.4px' letter-spacing='0px' xml:space='preserve'><tspan x='15.531887' y='33.715561' fill='#000000' font-family='Avenir' stroke-width='1.75'>Cub</tspan></text><text x='149.14455' y='33.867962' fill='#000000' font-family='Avenir' font-size='12.7px' letter-spacing='0px' xml:space='preserve'><tspan x='149.14455' y='33.867962' fill='#000000' font-family='Avenir' font-size='12.7px' stroke-width='1.75'>#",
|
||||
tokenId.toString(),
|
||||
unicode"</tspan></text><g font-family='Avenir' letter-spacing='0px'><text x='63.156933' y='33.715561' fill='#a11235' font-size='25.4px' xml:space='preserve'><tspan x='63.156933' y='33.715561' fill='#a11235' font-family='Avenir' stroke-width='1.75'>Learn</tspan></text><g><text x='16.209221' y='92.678009' fill='#a11235' font-size='11.289px' xml:space='preserve'><tspan x='16.209221' y='92.678009' font-size='11.289px' stroke-width='1.75'>ÖĞRENCİ</tspan></text><text x='15.531888' y='116.36742' fill='#000000' font-size='22.578px' xml:space='preserve'><tspan x='15.531888' y='116.36742' fill='#000000' font-size='22.578px' stroke-width='1.75'>",
|
||||
certInfo.studentFullName,
|
||||
"</tspan></text><text x='16.209221' y='143.1333' fill='#a11235' font-size='11.289px' xml:space='preserve'><tspan x='16.209221' y='143.1333' font-size='11.289px' stroke-width='1.75'>KURS</tspan></text><text x='15.531888' y='166.82274' fill='#000000' font-size='22.578px' xml:space='preserve'><tspan x='15.531888' y='166.82274' fill='#000000' font-size='22.578px' stroke-width='1.75'>",
|
||||
certInfo.courseName,
|
||||
unicode"</tspan></text><text x='16.209221' y='193.58873' fill='#a11235' font-size='11.289px' xml:space='preserve'><tspan x='16.209221' y='193.58873' font-size='11.289px' stroke-width='1.75'>EĞİTMEN</tspan></text><text x='15.531888' y='217.27815' fill='#000000' font-size='22.578px' xml:space='preserve'><tspan x='15.531888' y='217.27815' fill='#000000' font-size='22.578px' stroke-width='1.75'>",
|
||||
certInfo.instructorFullName,
|
||||
"</tspan></text></g></g></g></svg>"
|
||||
)
|
||||
);
|
||||
return svg;
|
||||
}
|
||||
CertificateInfo storage certInfo = certificateInfoMapping[tokenId];
|
||||
string memory svg = string(
|
||||
abi.encodePacked(
|
||||
unicode"data:image/svg+xml;utf8,<svg width='1024' height='1024' version='1.1' viewBox='0 0 270.93 270.93' xmlns='http://www.w3.org/2000/svg'><g stroke-width='1.75'><rect width='270.93' height='270.93' fill='#fff'/><text x='15.531887' y='33.715561' fill='#000000' font-family='Avenir' font-size='25.4px' letter-spacing='0px' xml:space='preserve'><tspan x='15.531887' y='33.715561' fill='#000000' font-family='Avenir' stroke-width='1.75'>Cub</tspan></text><text x='149.14455' y='33.867962' fill='#000000' font-family='Avenir' font-size='12.7px' letter-spacing='0px' xml:space='preserve'><tspan x='149.14455' y='33.867962' fill='#000000' font-family='Avenir' font-size='12.7px' stroke-width='1.75'>#",
|
||||
tokenId.toString(),
|
||||
unicode"</tspan></text><g font-family='Avenir' letter-spacing='0px'><text x='63.156933' y='33.715561' fill='#a11235' font-size='25.4px' xml:space='preserve'><tspan x='63.156933' y='33.715561' fill='#a11235' font-family='Avenir' stroke-width='1.75'>Learn</tspan></text><g><text x='16.209221' y='92.678009' fill='#a11235' font-size='11.289px' xml:space='preserve'><tspan x='16.209221' y='92.678009' font-size='11.289px' stroke-width='1.75'>ÖĞRENCİ</tspan></text><text x='15.531888' y='116.36742' fill='#000000' font-size='22.578px' xml:space='preserve'><tspan x='15.531888' y='116.36742' fill='#000000' font-size='22.578px' stroke-width='1.75'>",
|
||||
certInfo.studentFullName,
|
||||
"</tspan></text><text x='16.209221' y='143.1333' fill='#a11235' font-size='11.289px' xml:space='preserve'><tspan x='16.209221' y='143.1333' font-size='11.289px' stroke-width='1.75'>KURS</tspan></text><text x='15.531888' y='166.82274' fill='#000000' font-size='22.578px' xml:space='preserve'><tspan x='15.531888' y='166.82274' fill='#000000' font-size='22.578px' stroke-width='1.75'>",
|
||||
certInfo.courseName,
|
||||
unicode"</tspan></text><text x='16.209221' y='193.58873' fill='#a11235' font-size='11.289px' xml:space='preserve'><tspan x='16.209221' y='193.58873' font-size='11.289px' stroke-width='1.75'>EĞİTMEN</tspan></text><text x='15.531888' y='217.27815' fill='#000000' font-size='22.578px' xml:space='preserve'><tspan x='15.531888' y='217.27815' fill='#000000' font-size='22.578px' stroke-width='1.75'>",
|
||||
certInfo.instructorFullName,
|
||||
"</tspan></text></g></g></g></svg>"
|
||||
)
|
||||
);
|
||||
return svg;
|
||||
}
|
||||
|
||||
function tokenURI(uint256 tokenId)
|
||||
external
|
||||
view
|
||||
override
|
||||
returns (string memory)
|
||||
{
|
||||
bytes memory json = abi.encodePacked(
|
||||
'{',
|
||||
'"name": "CubLearn Certificate #', tokenId.toString(), '",',
|
||||
'"image_data": "', _getSvg(tokenId), '"',
|
||||
'}'
|
||||
);
|
||||
public
|
||||
view
|
||||
override
|
||||
returns (string memory)
|
||||
{
|
||||
bytes memory json = abi.encodePacked(
|
||||
'{',
|
||||
'"name": "CubLearn Certificate #', tokenId.toString(), '",',
|
||||
'"image_data": "', _getSvg(tokenId), '"',
|
||||
'}'
|
||||
);
|
||||
|
||||
return string(
|
||||
abi.encodePacked(
|
||||
"data:application/json;base64,",
|
||||
Base64.encode(json)
|
||||
)
|
||||
);
|
||||
}
|
||||
return string(
|
||||
abi.encodePacked(
|
||||
"data:application/json;base64,",
|
||||
Base64.encode(json)
|
||||
)
|
||||
);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue