contracts.nft.nft-marketplace.fc Maven / Gradle / Ivy

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Build and manipulate TON smart contracts in easy way.

There is a newer version: 0.8.0

;; NFT marketplace smart contract

;; storage scheme
;; storage#_ owner_address:MsgAddress
;;           = Storage;

(slice) load_data() inline {
  var ds = get_data().begin_parse();
  return 
    (ds~load_msg_addr() ;; owner
     );
}

() save_data(slice owner_address) impure inline {
  set_data(begin_cell()
    .store_slice(owner_address)
    .end_cell());
}

() recv_internal(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();

    var (owner_address) = load_data();
    throw_unless(401, equal_slices(sender_address, owner_address));
    int op = in_msg_body~load_uint(32);
  
    if (op == 1) { ;; deploy new auction
      int amount = in_msg_body~load_coins();
      (cell state_init, cell body) = (cs~load_ref(), cs~load_ref());
      int state_init_hash = cell_hash(state_init);
      slice dest_address = begin_cell().store_int(0, 8).store_uint(state_init_hash, 256).end_cell().begin_parse();
       
      var msg = begin_cell()
        .store_uint(0x18, 6)
        .store_uint(4, 3).store_slice(dest_address)
        .store_grams(amount)
        .store_uint(4 + 2 + 1, 1 + 4 + 4 + 64 + 32 + 1 + 1 + 1)
        .store_ref(state_init)
        .store_ref(body);
      send_raw_message(msg.end_cell(), 1); ;; paying fees, revert on errors
    }
}

() recv_external(slice in_msg) impure {
}