contracts.nft.nft-item-editable-DRAFT.fc Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of smartcontract Show documentation
Show all versions of smartcontract Show documentation
Build and manipulate TON smart contracts in easy way.
;;
;; TON NFT Item Smart Contract
;;
{-
NOTE that this tokens can be transferred within the same workchain.
This is suitable for most tokens, if you need tokens transferable between workchains there are two solutions:
1) use more expensive but universal function to calculate message forward fee for arbitrary destination (see `misc/forward-fee-calc.cs`)
2) use token holder proxies in target workchain (that way even 'non-universal' token can be used from any workchain)
-}
int min_tons_for_storage() asm "50000000 PUSHINT"; ;; 0.05 TON
;;
;; Storage
;;
;; uint64 index
;; MsgAddressInt collection_address
;; MsgAddressInt owner_address
;; cell content
;; MsgAddressInt editor_address
;;
(int, int, slice, slice, cell, slice) load_data() {
slice ds = get_data().begin_parse();
var (index, collection_address) = (ds~load_uint(64), ds~load_msg_addr());
if (ds.slice_bits() > 0) {
return (-1, index, collection_address, ds~load_msg_addr(), ds~load_ref(), ds~load_msg_addr());
} else {
return (0, index, collection_address, null(), null(), null()); ;; nft not initialized yet
}
}
() store_data(int index, slice collection_address, slice owner_address, cell content, slice editor_address) impure {
set_data(
begin_cell()
.store_uint(index, 64)
.store_slice(collection_address)
.store_slice(owner_address)
.store_ref(content)
.store_slice(editor_address)
.end_cell()
);
}
() send_msg(slice to_address, int amount, int op, int query_id, builder payload, int send_mode) impure inline {
var msg = begin_cell()
.store_uint(0x10, 6) ;; nobounce - int_msg_info$0 ihr_disabled:Bool bounce:Bool bounced:Bool src:MsgAddress -> 011000
.store_slice(to_address)
.store_coins(amount)
.store_uint(0, 1 + 4 + 4 + 64 + 32 + 1 + 1)
.store_uint(op, 32)
.store_uint(query_id, 64);
if (~ builder_null?(payload)) {
msg = msg.store_builder(payload);
}
send_raw_message(msg.end_cell(), send_mode);
}
() transfer_ownership(int my_balance, int index, slice collection_address, slice owner_address, cell content, slice editor_address, slice sender_address, int query_id, slice in_msg_body, int fwd_fees) impure inline {
throw_unless(401, equal_slices(sender_address, owner_address));
slice new_owner_address = in_msg_body~load_msg_addr();
force_chain(new_owner_address);
slice response_destination = in_msg_body~load_msg_addr();
in_msg_body~load_int(1); ;; this nft don't use custom_payload
int forward_amount = in_msg_body~load_coins();
int rest_amount = my_balance - min_tons_for_storage();
if (forward_amount) {
rest_amount -= (forward_amount + fwd_fees);
}
int need_response = response_destination.preload_uint(2) != 0; ;; if NOT addr_none: 00
if (need_response) {
rest_amount -= fwd_fees;
}
throw_unless(402, rest_amount >= 0); ;; base nft spends fixed amount of gas, will not check for response
if (forward_amount) {
send_msg(new_owner_address, forward_amount, op::ownership_assigned(), query_id, begin_cell().store_slice(owner_address).store_slice(in_msg_body), 1); ;; paying fees, revert on errors
}
if (need_response) {
force_chain(response_destination);
send_msg(response_destination, rest_amount, op::excesses(), query_id, null(), 1); ;; paying fees, revert on errors
}
store_data(index, collection_address, new_owner_address, content, editor_address);
}
() transfer_editorship(int my_balance, int index, slice collection_address, slice owner_address, cell content, slice editor_address, slice sender_address, int query_id, slice in_msg_body, int fwd_fees) impure inline {
throw_unless(401, equal_slices(sender_address, editor_address));
slice new_editor_address = in_msg_body~load_msg_addr();
force_chain(new_editor_address);
slice response_destination = in_msg_body~load_msg_addr();
in_msg_body~load_int(1); ;; this nft don't use custom_payload
int forward_amount = in_msg_body~load_coins();
int rest_amount = my_balance - min_tons_for_storage();
if (forward_amount) {
rest_amount -= (forward_amount + fwd_fees);
}
int need_response = response_destination.preload_uint(2) != 0; ;; if NOT addr_none: 00
if (need_response) {
rest_amount -= fwd_fees;
}
throw_unless(402, rest_amount >= 0); ;; base nft spends fixed amount of gas, will not check for response
if (forward_amount) {
send_msg(new_editor_address, forward_amount, op::editorship_assigned(), query_id, begin_cell().store_slice(editor_address).store_slice(in_msg_body), 1); ;; paying fees, revert on errors
}
if (need_response) {
force_chain(response_destination);
send_msg(response_destination, rest_amount, op::excesses(), query_id, null(), 1); ;; paying fees, revert on errors
}
store_data(index, collection_address, owner_address, content, new_editor_address);
}
() recv_internal(int my_balance, int msg_value, cell in_msg_full, slice in_msg_body) impure {
if (in_msg_body.slice_empty?()) { ;; ignore empty messages
return ();
}
slice cs = in_msg_full.begin_parse();
int flags = cs~load_uint(4);
if (flags & 1) { ;; ignore all bounced messages
return ();
}
slice sender_address = cs~load_msg_addr();
cs~load_msg_addr(); ;; skip dst
cs~load_coins(); ;; skip value
cs~skip_bits(1); ;; skip extracurrency collection
cs~load_coins(); ;; skip ihr_fee
int fwd_fee = muldiv(cs~load_coins(), 3, 2); ;; we use message fwd_fee for estimation of forward_payload costs
(int init?, int index, slice collection_address, slice owner_address, cell content, slice editor_address) = load_data();
if (~ init?) {
throw_unless(405, equal_slices(collection_address, sender_address));
store_data(index, collection_address, in_msg_body~load_msg_addr(), in_msg_body~load_ref(), in_msg_body~load_msg_addr());
return ();
}
int op = in_msg_body~load_uint(32);
int query_id = in_msg_body~load_uint(64);
if (op == op::transfer()) {
transfer_ownership(my_balance, index, collection_address, owner_address, content, editor_address, sender_address, query_id, in_msg_body, fwd_fee);
return ();
}
if (op == op::get_static_data()) {
send_msg(sender_address, 0, op::report_static_data(), query_id, begin_cell().store_uint(index, 256).store_slice(collection_address), 64); ;; carry all the remaining value of the inbound message
return ();
}
if (op == op::transfer_editorship()) {
transfer_editorship(my_balance, index, collection_address, owner_address, content, editor_address, sender_address, query_id, in_msg_body, fwd_fee);
return ();
}
if (op == op::edit_content()) {
throw_unless(410, equal_slices(sender_address, editor_address));
store_data(index, collection_address, owner_address, in_msg_body~load_ref(), editor_address);
return ();
}
throw(0xffff);
}
;;
;; GET Methods
;;
(int, int, slice, slice, cell) get_nft_data() method_id {
(int init?, int index, slice collection_address, slice owner_address, cell content, _) = load_data();
return (init?, index, collection_address, owner_address, content);
}
slice get_editor() method_id {
(_, _, _, _, _, slice editor_address) = load_data();
return editor_address;
}