Random Collection URI Prefix

[sagaratalatti]

// Attach to deployed contract
const contract = await NftContractProvider.getContract();

// Define the 6 different URIs and their assigned ranges
const uris = [
  { uri: process.env.COLLECTION_URI_PREFIX_1, range: [1, 500] },
  { uri: process.env.COLLECTION_URI_PREFIX_2, range: [501, 1000] },
  { uri: process.env.COLLECTION_URI_PREFIX_3, range: [1001, 1500] },
  { uri: process.env.COLLECTION_URI_PREFIX_4, range: [1501, 2000] },
  { uri: process.env.COLLECTION_URI_PREFIX_5, range: [2001, 2500] },
  { uri: process.env.COLLECTION_URI_PREFIX_6, range: [2501, 3000] },
];

// Shuffle the array of NFT IDs
const nftIds = Array.from({ length: 3000 }, (_, i) => i + 1);
for (let i = nftIds.length - 1; i > 0; i--) {
  const j = Math.floor(Math.random() * (i + 1));
  [nftIds[i], nftIds[j]] = [nftIds[j], nftIds[i]];
}

// Assign the URIs to the NFTs based on the predefined ranges
for (const { uri, range } of uris) {
  const [start, end] = range;
  for (let i = start; i <= end; i++) {
    const nftId = nftIds[i - 1]; // NFT IDs are 1-indexed
    console.log(`Assigning URI ${uri} to NFT ${nftId}`);
    await (await contract.setTokenURI(nftId, uri)).wait();
  }
}

The uris array is an array of objects, where each object has a uri property that specifies the URI, and a range property that specifies the range of NFT IDs that should be assigned to that URI. The nftIds array is shuffled using the Fisher-Yates algorithm, as before. The code then loops through each URI and assigns the URI to the NFTs whose IDs fall within the predefined range for that URI.