Untitled

# Define the properties of the NFT
maxSupply = 1000 # max number of NFTs that can be created
tokenIDToOwner = Map("tokenID_to_owner") # map to store the owner of each NFT
tokenIDToURI = Map("tokenID_to_URI") # map to store the URI of each NFT

# Mint a new NFT and assign it to an owner
def mint(txn, tokenID, owner, uri):
  # Ensure the token ID does not already exist
  assert len(tokenIDToOwner.get(txn, tokenID)) == 0, "Token ID already exists"

  # Ensure the maximum supply has not been reached
  nftCount = len(tokenIDToOwner.keys(txn))
  assert nftCount < maxSupply, "Maximum supply reached"

  # Assign the NFT to the owner
  tokenIDToOwner[txn, tokenID] = owner
  tokenIDToURI[txn, tokenID] = uri

# Get the owner of a specific NFT
def ownerOf(txn, tokenID):
  return tokenIDToOwner[txn, tokenID]

# Get the URI of a specific NFT
def tokenURI(txn, tokenID):
  return tokenIDToURI[txn, tokenID]

# Define the smart contract
prog = And(
  # Check the transaction type is 'ApplicationCall'
  Txn.Type() == TxnType.ApplicationCall,

  # Execute the requested function
  Switch(Txn.ApplicationID(), {
    # Mint a new NFT
    [mint]: mint(Txn, Txn.Sender(), Txn.FirstValid(), Txn.Note()),
    # Get the owner of a specific NFT
    [ownerOf]: ownerOf(Txn, Txn.FirstValid()),
    # Get the URI of a specific NFT
    [tokenURI]: tokenURI(Txn, Txn.FirstValid())
  })
)

# Compile the smart contract
compiledProg = Teal(prog).compile()