TDERC721_metadata.cairo

%lang starknet

from starkware.cairo.common.cairo_builtins import HashBuiltin, SignatureBuiltin
from starkware.cairo.common.uint256 import (
    Uint256,
    uint256_add,
    uint256_sub,
    uint256_le,
    uint256_lt,
    uint256_check,
    uint256_eq,
)
from openzeppelin.token.erc721.library import ERC721
from openzeppelin.introspection.erc165.library import ERC165
from openzeppelin.access.ownable.library import Ownable

from contracts.token.ERC721.ERC721_Metadata_base import (
    ERC721_Metadata_initializer,
    ERC721_Metadata_tokenURI,
    ERC721_Metadata_setBaseTokenURI,
)

//
// Constructor
//

@constructor
func constructor{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}(
    name: felt,
    symbol: felt,
    owner: felt,
    base_token_uri_len: felt,
    base_token_uri: felt*,
    token_uri_suffix: felt,
) {
    ERC721.initializer(name, symbol);
    ERC721_Metadata_initializer();
    Ownable.initializer(owner);
    ERC721_Metadata_setBaseTokenURI(base_token_uri_len, base_token_uri, token_uri_suffix);
    let one_as_uint = Uint256(1, 0);
    next_token_id_storage.write(one_as_uint);
    return ();
}

//
// Storage vars
//

@storage_var
func next_token_id_storage() -> (next_token_id: Uint256) {
}

//
// Getters
//

@view
func next_token_id{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}() -> (
    next_token_id: Uint256
) {
    let (next_token_id) = next_token_id_storage.read();
    return (next_token_id=next_token_id);
}

@view
func getOwner{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}() -> (owner: felt) {
    let (owner) = Ownable.owner();
    return (owner=owner);
}

@view
func supportsInterface{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}(
    interface_id: felt
) -> (success: felt) {
    let (success) = ERC165.supports_interface(interface_id);
    return (success,);
}

@view
func name{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}() -> (name: felt) {
    let (name) = ERC721.name();
    return (name,);
}

@view
func symbol{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}() -> (symbol: felt) {
    let (symbol) = ERC721.symbol();
    return (symbol,);
}

@view
func balanceOf{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}(owner: felt) -> (
    balance: Uint256
) {
    let (balance: Uint256) = ERC721.balance_of(owner);
    return (balance,);
}

@view
func ownerOf{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}(
    token_id: Uint256
) -> (owner: felt) {
    let (owner: felt) = ERC721.owner_of(token_id);
    return (owner,);
}

@view
func getApproved{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}(
    token_id: Uint256
) -> (approved: felt) {
    let (approved: felt) = ERC721.get_approved(token_id);
    return (approved,);
}

@view
func isApprovedForAll{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}(
    owner: felt, operator: felt
) -> (is_approved: felt) {
    let (is_approved: felt) = ERC721.is_approved_for_all(owner, operator);
    return (is_approved,);
}

@view
func tokenURI{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}(
    token_id: Uint256
) -> (token_uri_len: felt, token_uri: felt*) {
    let (token_uri_len, token_uri) = ERC721_Metadata_tokenURI(token_id);
    return (token_uri_len=token_uri_len, token_uri=token_uri);
}

//
// Externals
//

@external
func approve{pedersen_ptr: HashBuiltin*, syscall_ptr: felt*, range_check_ptr}(
    to: felt, token_id: Uint256
) {
    ERC721.approve(to, token_id);
    return ();
}

@external
func setApprovalForAll{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}(
    operator: felt, approved: felt
) {
    ERC721.set_approval_for_all(operator, approved);
    return ();
}

@external
func transferFrom{pedersen_ptr: HashBuiltin*, syscall_ptr: felt*, range_check_ptr}(
    _from: felt, to: felt, token_id: Uint256
) {
    ERC721.transfer_from(_from, to, token_id);
    return ();
}

@external
func safeTransferFrom{pedersen_ptr: HashBuiltin*, syscall_ptr: felt*, range_check_ptr}(
    _from: felt, to: felt, token_id: Uint256, data_len: felt, data: felt*
) {
    ERC721.safe_transfer_from(_from, to, token_id, data_len, data);
    return ();
}

@external
func setTokenURI{pedersen_ptr: HashBuiltin*, syscall_ptr: felt*, range_check_ptr}(
    base_token_uri_len: felt, base_token_uri: felt*, token_uri_suffix: felt
) {
    Ownable.assert_only_owner();
    ERC721_Metadata_setBaseTokenURI(base_token_uri_len, base_token_uri, token_uri_suffix);
    return ();
}

@external
func mint{pedersen_ptr: HashBuiltin*, syscall_ptr: felt*, range_check_ptr}(
    to: felt, token_id: Uint256
) {
    Ownable.assert_only_owner();
    ERC721._mint(to, token_id);
    return ();
}

@external
func claim{pedersen_ptr: HashBuiltin*, syscall_ptr: felt*, range_check_ptr}(to: felt) {
    let (token_id) = next_token_id_storage.read();
    let one_as_uint = Uint256(1, 0);
    let (next_token_id, _) = uint256_add(one_as_uint, token_id);
    next_token_id_storage.write(next_token_id);
    ERC721._mint(to, token_id);
    return ();
}

@external
func burn{pedersen_ptr: HashBuiltin*, syscall_ptr: felt*, range_check_ptr}(token_id: Uint256) {
    Ownable.assert_only_owner();
    ERC721._burn(token_id);
    return ();
}

@external
func transferOwnership{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}(
    new_owner: felt
) -> (new_owner: felt) {
    // Ownership check is handled by this function
    Ownable.transfer_ownership(new_owner);
    return (new_owner=new_owner);
}