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| //SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/utils/Strings.sol";
import "base64-sol/base64.sol";
/// @title ExternalMetadata
/// @author @okwme
/// @dev The updateable and replaceable metadata contract for Kudzu
contract ExternalMetadata {
string[32] public eyes = [
"worry-sweat",
"whyyy",
"upside-down",
"cool",
"x-eyes",
"literally-crying",
"wink",
"wworry-sweat",
"pwease",
"drunk",
"mad",
"rawr",
"sorrow",
"wwhyyy",
"blank",
"hehe",
"stress",
"eye-roll",
"glasses",
"wwink",
"dollar-eyes",
"surprise",
"wwwink",
"eeee",
"heart",
"wwwwink",
"bblank",
"big-eyes",
"fml",
"ugh",
"bbblank",
"pleased"
];
string[32] public mouths = [
"smile",
"barf",
"upside-down",
"ssmile",
"big-o",
"big-o-teeth",
"drunk",
"hot",
"small-frown",
"party",
"little-mad",
"wha-wha-wha",
"whyyy",
"llittle-mad",
"big-sad",
"happy",
"lllittle-mad",
"shock",
"flat",
"front-teeth",
"pparty",
"money-mouth",
"kiss-heart",
"small-o",
"silly",
"open-smile",
"small-smile",
"uh-oh",
"fflat",
"big-flat",
"drool",
"grimmace"
];
constructor() {}
/// @dev generates the metadata
/// @param tokenId the tokenId
function getMetadata(uint256 tokenId) public view returns (string memory) {
return
string(
abi.encodePacked(
"data:application/json;base64,",
Base64.encode(
abi.encodePacked(
'{"name":"',
getName(tokenId),
'",',
'"description": "',
getDescription(tokenId),
'",',
'"image": "https://virus.folia.app/img/forma/',
Strings.toString(tokenId),
'",',
'"image_url": "https://virus.folia.app/img/forma/',
Strings.toString(tokenId),
'",',
'"home_url": "https://kudzu.christmas",',
'"external_url": "https://kudzu.christmas",',
'"attributes": ',
getAttributes(tokenId),
"}"
)
)
)
);
}
function getAttributes(
uint256 tokenId
) public view returns (string memory) {
(uint256 id, uint256 eye, uint256 mouth) = getPiecesOfTokenID(tokenId);
return
string(
abi.encodePacked(
"[",
'{"trait_type":"mouth","value":"',
mouths[mouth],
'"},',
'{"trait_type":"eyes","value":"',
eyes[eye],
'"},',
'{"trait_type":"index","value":"',
Strings.toString(id),
'"}',
"]"
)
);
}
function getDescription(
uint256 tokenId
) public view returns (string memory) {
(uint256 id, uint256 eye, uint256 mouth) = getPiecesOfTokenID(tokenId);
return
string(
abi.encodePacked(
"Kudzu is contagious, let the vine grow...\\n\\nThis is the token number ",
Strings.toString(id),
" but it has ID ",
Strings.toString(tokenId),
" with ",
eyes[eye],
" eyes and ",
mouths[mouth],
" mouth."
)
);
}
function getName(uint256 tokenId) public view returns (string memory) {
(uint256 id, uint256 eye, uint256 mouth) = getPiecesOfTokenID(tokenId);
return
string(
abi.encodePacked(
"$",
eyes[eye],
"-",
mouths[mouth],
" #",
Strings.toString(id),
""
)
);
}
function getPiecesOfTokenID(
uint256 tokenId
) public pure returns (uint256 id, uint256 eye, uint256 mouth) {
return (tokenId >> 16, ((tokenId >> 8) & 0xFF), tokenId & 0xFF);
}
function getEmoji(uint256 tokenId) public view returns (string memory) {
{
(, uint256 eye, uint256 mouth) = getPiecesOfTokenID(tokenId);
return string(abi.encodePacked(eyes[eye], "-", mouths[mouth]));
}
}
}
|