diff --git a/modules/service/xchange/dap_chain_net_srv_xchange.c b/modules/service/xchange/dap_chain_net_srv_xchange.c
index 6f508b2a745aa0fb6c069e23bd551d75e3c7e8f6..d7a33983479c3a3f272a53d1c9bd83047d8d69d3 100644
--- a/modules/service/xchange/dap_chain_net_srv_xchange.c
+++ b/modules/service/xchange/dap_chain_net_srv_xchange.c
@@ -1023,19 +1023,11 @@ static int s_cli_srv_xchange_order(int a_argc, char **a_argv, int a_arg_index, v
dap_cli_server_cmd_set_reply_text(a_str_reply, "Command 'order create' requires parameter -token_sell");
return -5;
}
- if (!dap_ledger_token_ticker_check(l_net->pub.ledger, l_token_sell_str)) {
- dap_cli_server_cmd_set_reply_text(a_str_reply, "Token ticker %s not found", l_token_sell_str);
- return -6;
- }
dap_cli_server_cmd_find_option_val(a_argv, l_arg_index, a_argc, "-token_buy", &l_token_buy_str);
if (!l_token_buy_str) {
dap_cli_server_cmd_set_reply_text(a_str_reply, "Command 'order create' requires parameter -token_buy");
return -5;
}
- if (!dap_ledger_token_ticker_check(l_net->pub.ledger, l_token_buy_str)) {
- dap_cli_server_cmd_set_reply_text(a_str_reply, "Token ticker %s not found", l_token_buy_str);
- return -6;
- }
const char *l_val_sell_str = NULL, *l_val_rate_str = NULL;
dap_cli_server_cmd_find_option_val(a_argv, l_arg_index, a_argc, "-value", &l_val_sell_str);
if (!l_val_sell_str) {
@@ -1043,20 +1035,12 @@ static int s_cli_srv_xchange_order(int a_argc, char **a_argv, int a_arg_index, v
return -8;
}
uint256_t l_datoshi_sell = dap_chain_balance_scan(l_val_sell_str);
- if (IS_ZERO_256(l_datoshi_sell)) {
- dap_cli_server_cmd_set_reply_text(a_str_reply, "Format -value <unsigned integer 256>");
- return -9;
- }
dap_cli_server_cmd_find_option_val(a_argv, l_arg_index, a_argc, "-rate", &l_val_rate_str);
if (!l_val_rate_str) {
dap_cli_server_cmd_set_reply_text(a_str_reply, "Command 'order create' requires parameter -rate");
return -8;
}
uint256_t l_rate = dap_chain_coins_to_balance(l_val_rate_str);
- if (IS_ZERO_256(l_rate)) {
- dap_cli_server_cmd_set_reply_text(a_str_reply, "Format -rate n.n = buy / sell (eg: 1.0, 1.135)");
- return -9;
- }
const char *l_fee_str = NULL;
dap_cli_server_cmd_find_option_val(a_argv, l_arg_index, a_argc, "-fee", &l_fee_str);
if (!l_fee_str) {
@@ -1064,10 +1048,6 @@ static int s_cli_srv_xchange_order(int a_argc, char **a_argv, int a_arg_index, v
return -20;
}
uint256_t l_fee = dap_chain_balance_scan(l_fee_str);
- if (IS_ZERO_256(l_fee)) {
- dap_cli_server_cmd_set_reply_text(a_str_reply, "Format -fee <unsigned integer 256>");
- return -21;
- }
dap_cli_server_cmd_find_option_val(a_argv, l_arg_index, a_argc, "-w", &l_wallet_str);
if (!l_wallet_str) {
dap_cli_server_cmd_set_reply_text(a_str_reply, "Command 'order create' requires parameter -w");
@@ -1081,21 +1061,76 @@ static int s_cli_srv_xchange_order(int a_argc, char **a_argv, int a_arg_index, v
} else {
l_sign_str = dap_chain_wallet_check_sign(l_wallet);
}
- uint256_t l_value = dap_chain_wallet_get_balance(l_wallet, l_net->pub.id, l_token_sell_str);
- uint256_t l_value_sell = l_datoshi_sell;
- if (!dap_strcmp(l_net->pub.native_ticker, l_token_sell_str)) {
- if (SUM_256_256(l_value_sell, l_fee, &l_value_sell)) {
- dap_chain_wallet_close(l_wallet);
+ char *l_hash_ret = NULL;
+ int ret_code = dap_chain_net_srv_xchange_create(l_net, l_token_buy_str, l_token_sell_str, l_datoshi_sell, l_rate, l_fee, l_wallet, &l_hash_ret);
+ dap_chain_wallet_close(l_wallet);
+ switch (ret_code) {
+ case XCHANGE_CREATE_ERROR_OK: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "%s\nSuccessfully created order %s", l_sign_str, l_hash_ret);
+ DAP_DELETE(l_hash_ret);
+ return 0;
+ }
+ case XCHANGE_CREATE_ERROR_INVALID_ARGUMENT: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "Some parameters could not be set during a function call");
+ DAP_DELETE(l_hash_ret);
+ return -24;
+ }
+ case XCHANGE_CREATE_ERROR_TOKEN_TICKER_SELL_IS_NOT_FOUND_LEDGER: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "Token ticker %s not found", l_token_sell_str);
+ DAP_DELETE(l_hash_ret);
+ return -6;
+ }
+ case XCHANGE_CREATE_ERROR_TOKEN_TICKER_BUY_IS_NOT_FOUND_LEDGER: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "Token ticker %s not found", l_token_buy_str);
+ DAP_DELETE(l_hash_ret);
+ return -6;
+ }
+ case XCHANGE_CREATE_ERROR_RATE_IS_ZERO: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "Format -rate n.n = buy / sell (eg: 1.0, 1.135)");
+ DAP_DELETE(l_hash_ret);
+ return -9;
+ }
+ case XCHANGE_CREATE_ERROR_FEE_IS_ZERO: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "Format -value <unsigned integer 256>");
+ DAP_DELETE(l_hash_ret);
+ return -21;
+ }
+ case XCHANGE_CREATE_ERROR_VALUE_SELL_IS_ZERO: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "Format -value <unsigned integer 256>");
+ DAP_DELETE(l_hash_ret);
+ return -9;
+ }
+ case XCHANGE_CREATE_ERROR_INTEGER_OVERFLOW_WITH_SUM_OF_VALUE_AND_FEE: {
log_it(L_ERROR, "Integer overflow with sum of value and fee");
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "Integer overflow with sum of value and fee");
+ DAP_DELETE(l_hash_ret);
return -22;
}
- } else { // sell non-native ticker
- uint256_t l_fee_value = dap_chain_wallet_get_balance(l_wallet, l_net->pub.id, l_net->pub.native_ticker);
- if (compare256(l_fee_value, l_fee) == -1) {
+ case XCHANGE_CREATE_ERROR_NOT_ENOUGH_CASH_FOR_FEE_IN_SPECIFIED_WALLET: {
dap_cli_server_cmd_set_reply_text(a_str_reply, "%s\nNot enough cash for fee in specified wallet", l_sign_str);
- dap_chain_wallet_close(l_wallet);
+ DAP_DELETE(l_hash_ret);
return -23;
}
+ case XCHANGE_CREATE_ERROR_NOT_ENOUGH_CASH_IN_SPECIFIED_WALLET: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "%s\nNot enough cash in specified wallet", l_sign_str);
+ DAP_DELETE(l_hash_ret);
+ return -12;
+ }
+ case XCHANGE_CREATE_ERROR_MEMORY_ALLOCATED: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "Out of memory");
+ DAP_DELETE(l_hash_ret);
+ return -1;
+ }
+ case XCHANGE_CREATE_ERROR_CAN_NOT_COMPOSE_THE_CONDITIONAL_TRANSACTION: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "%s\nCan't compose the conditional transaction", l_sign_str);
+ DAP_DELETE(l_hash_ret);
+ return -14;
+ }
+ case XCHANGE_CREATE_ERROR_CAN_NOT_PUT_TRANSACTION_TO_MEMPOOL: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "%s\nCan't compose the conditional transaction", l_sign_str);
+ DAP_DELETE(l_hash_ret);
+ return -15;
+ }
}
if (compare256(l_value, l_value_sell) == -1) {
dap_cli_server_cmd_set_reply_text(a_str_reply, "%s\nNot enough cash in specified wallet", l_sign_str);
@@ -1259,41 +1294,39 @@ static int s_cli_srv_xchange_order(int a_argc, char **a_argv, int a_arg_index, v
return -12;
}
uint256_t l_fee = dap_chain_balance_scan(l_fee_str);
- if(IS_ZERO_256(l_fee)){
- dap_cli_server_cmd_set_reply_text(a_str_reply, "Can't get fee value.");
- return -13;
- }
dap_hash_fast_t l_tx_hash = {};
dap_chain_hash_fast_from_str(l_order_hash_str, &l_tx_hash);
- dap_chain_datum_tx_t *l_cond_tx = dap_ledger_tx_find_by_hash(l_net->pub.ledger, &l_tx_hash);
- if (!l_cond_tx) {
- dap_cli_server_cmd_set_reply_text(a_str_reply, "%s\nSpecified order not found", l_sign_str);
- return -13;
- }
- dap_chain_net_srv_xchange_price_t *l_price = s_xchange_price_from_order(l_net, l_cond_tx, &l_fee, false);
- if (!l_price) {
- dap_cli_server_cmd_set_reply_text(a_str_reply, "%s\nCan't create price object from order", l_sign_str);
- return -13;
- }
-
- if (l_cmd_num == CMD_REMOVE) {
- dap_string_t *l_str_reply = dap_string_new(l_sign_str);
- char* l_ret = s_xchange_tx_invalidate(l_price, l_wallet);
- dap_chain_wallet_close(l_wallet);
- if (!l_ret) {
- if (!l_price) {
- dap_string_append_printf(l_str_reply, "Can't get price for order %s\n", l_order_hash_str);
- } else {
- char *l_tx_hash_str = dap_chain_hash_fast_to_str_new(&l_price->tx_hash);
- dap_string_append_printf(l_str_reply, "Can't invalidate transaction %s\n", l_tx_hash_str);
- DAP_DELETE(l_tx_hash_str);
- }
- } else
- dap_string_append_printf(l_str_reply, "Order successfully removed. Created inactivate tx with hash %s", l_ret);
- DAP_DELETE(l_price);
- DAP_DEL_Z(l_ret);
- *a_str_reply = dap_string_free(l_str_reply, false);
+ dap_chain_wallet_close(l_wallet);
+ char *l_tx_hash_ret = NULL;
+ int l_ret_code = dap_chain_net_srv_xchange_remove(l_net, &l_tx_hash, l_fee, l_wallet, &l_tx_hash_ret);
+ switch (l_ret_code) {
+ case XCHANGE_REMOVE_ERROR_OK:
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "Order successfully removed. Created inactivate tx with hash %s", l_tx_hash_ret);
+ DAP_DELETE(l_tx_hash_ret);
+ break;
+ case XCHANGE_REMOVE_ERROR_CAN_NOT_FIND_TX:
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "%s\nSpecified order not found", l_sign_str);
+ break;
+ case XCHANGE_REMOVE_ERROR_CAN_NOT_CREATE_PRICE:
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "%s\nCan't create price object from order", l_sign_str);
+ break;
+ case XCHANGE_REMOVE_ERROR_FEE_IS_ZERO:
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "Can't get fee value.");
+ break;
+ case XCHANGE_REMOVE_ERROR_CAN_NOT_INVALIDATE_TX: {
+ dap_chain_datum_tx_t *l_cond_tx = dap_ledger_tx_find_by_hash(l_net->pub.ledger, &l_tx_hash);
+ dap_chain_net_srv_xchange_price_t *l_price = s_xchange_price_from_order(l_net, l_cond_tx, &l_fee, false);
+ char *l_finaly_tx_hash_str = dap_chain_hash_fast_to_str_new(&l_price->tx_hash);
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "Can't create invalidate transaction from: %s\n", l_finaly_tx_hash_str);
+ DAP_DELETE(l_price);
+ DAP_DELETE(l_finaly_tx_hash_str);
+ } break;
+ default:
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "An error occurred with an unknown code: %d.", l_ret_code);
+ break;
}
+ DAP_DELETE(l_sign_str);
+ return l_ret_code;
} break;
case CMD_STATUS: {
@@ -1965,47 +1998,39 @@ static int s_cli_srv_xchange(int a_argc, char **a_argv, void **a_str_reply)
return -8;
}
uint256_t l_datoshi_buy = dap_chain_balance_scan(l_val_buy_str);
- if (IS_ZERO_256(l_datoshi_buy)) {
- dap_cli_server_cmd_set_reply_text(a_str_reply, "Format -value <unsigned int256>");
- return -9;
- }
dap_cli_server_cmd_find_option_val(a_argv, l_arg_index, a_argc, "-fee", &l_val_fee_str);
if (!l_val_fee_str) {
dap_cli_server_cmd_set_reply_text(a_str_reply, "Command 'purchase' requires parameter -fee");
return -8;
}
uint256_t l_datoshi_fee = dap_chain_balance_scan(l_val_fee_str);
- if (IS_ZERO_256(l_datoshi_fee)) {
- dap_cli_server_cmd_set_reply_text(a_str_reply, "Format -fee <unsigned int256>");
- return -9;
- }
dap_hash_fast_t l_tx_hash = {};
dap_chain_hash_fast_from_str(l_order_hash_str, &l_tx_hash);
- dap_chain_datum_tx_t *l_cond_tx = dap_ledger_tx_find_by_hash(l_net->pub.ledger, &l_tx_hash);
-
- if (l_cond_tx) {
- dap_chain_net_srv_xchange_price_t *l_price = s_xchange_price_from_order(l_net, l_cond_tx, &l_datoshi_fee, false);
- if(!l_price){
+ char *l_str_ret_hash = NULL;
+ int l_ret_code = dap_chain_net_srv_xchange_purchase(l_net, &l_tx_hash, l_datoshi_buy, l_datoshi_fee,
+ l_wallet, &l_str_ret_hash);
+ switch (l_ret_code) {
+ case XCHANGE_PURCHASE_ERROR_OK: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "Exchange transaction has done. tx hash: %s", l_str_ret_hash);
+ DAP_DELETE(l_str_ret_hash);
+ return 0;
+ }
+ case XCHANGE_PURCHASE_ERROR_SPECIFIED_ORDER_NOT_FOUND: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "Specified order not found");
+ return -13;
+ }
+ case XCHANGE_PURCHASE_ERROR_CAN_NOT_CREATE_PRICE: {
dap_cli_server_cmd_set_reply_text(a_str_reply, "Can't create price from order");
return -13;
}
- // Create conditional transaction
- dap_chain_hash_fast_from_str(l_order_hash_str, &l_price->order_hash);
- char *l_ret = NULL;
- dap_chain_datum_tx_t *l_tx = s_xchange_tx_create_exchange(l_price, l_wallet, l_datoshi_buy, l_datoshi_fee);
- if (l_tx && (l_ret = s_xchange_tx_put(l_tx, l_net)) &&
- dap_hash_fast_is_blank(&l_price->order_hash))
- dap_chain_net_srv_order_delete_by_hash_str_sync(l_price->net, l_order_hash_str);
- DAP_DELETE(l_price);
- if (l_tx && l_ret){
- dap_cli_server_cmd_set_reply_text(a_str_reply, "Exchange transaction has done. tx hash: %s", l_ret);
- } else
+ case XCHANGE_PURCHASE_ERROR_CAN_NOT_CREATE_EXCHANGE_TX: {
dap_cli_server_cmd_set_reply_text(a_str_reply, "Exchange transaction error");
-
- DAP_DEL_Z(l_ret);
- } else {
- dap_cli_server_cmd_set_reply_text(a_str_reply, "Specified order not found");
- return -13;
+ return -13;
+ }
+ default: {
+ dap_cli_server_cmd_set_reply_text(a_str_reply, "An error occurred with an unknown code: %d.", l_ret_code);
+ return -14;
+ }
}
} break;
case CMD_ENABLE: {
@@ -2416,3 +2441,154 @@ void dap_chain_net_srv_xchange_print_fee(dap_chain_net_t *a_net, dap_string_t *a
"\t\tThe xchanger service has not announced a commission fee.\n");
}
}
+
+dap_list_t *dap_chain_net_srv_xchange_get_prices(dap_chain_net_t *a_net) {
+ dap_list_t *l_list_prices = NULL;
+ dap_list_t *l_list_tx = dap_chain_net_get_tx_cond_all_by_srv_uid(a_net, c_dap_chain_net_srv_xchange_uid, 0, 0,TX_SEARCH_TYPE_NET);
+ dap_list_t *l_temp = l_list_tx;
+ while(l_temp)
+ {
+ dap_chain_datum_tx_t *l_tx = (dap_chain_datum_tx_t *)l_temp->data;
+
+ dap_chain_net_srv_xchange_price_t * l_price = NULL;
+ l_price = s_xchange_price_from_order(a_net, l_tx, NULL, true);
+ if(!l_price ){
+ log_it(L_WARNING,"Can't create price from order");
+ l_temp = l_temp->next;
+ continue;
+ }
+ l_list_prices = dap_list_append(l_list_prices, l_price);
+ l_temp = l_temp->next;
+ }
+ dap_list_free(l_list_tx);
+ return l_list_prices;
+}
+
+int dap_chain_net_srv_xchange_create(dap_chain_net_t *a_net, const char *a_token_buy,
+ const char *a_token_sell, uint256_t a_datoshi_sell,
+ uint256_t a_rate, uint256_t a_fee, dap_chain_wallet_t *a_wallet,
+ char **a_out_tx_hash){
+ if (!a_net || !a_token_buy || !a_token_sell || !a_wallet || !a_out_tx_hash) {
+ return XCHANGE_CREATE_ERROR_INVALID_ARGUMENT;
+ }
+ if (!dap_ledger_token_ticker_check(a_net->pub.ledger, a_token_sell)) {
+ return XCHANGE_CREATE_ERROR_TOKEN_TICKER_SELL_IS_NOT_FOUND_LEDGER;
+ }
+ if (!dap_ledger_token_ticker_check(a_net->pub.ledger, a_token_buy)) {
+ return XCHANGE_CREATE_ERROR_TOKEN_TICKER_BUY_IS_NOT_FOUND_LEDGER;
+ }
+ if (IS_ZERO_256(a_rate)) {
+ return XCHANGE_CREATE_ERROR_RATE_IS_ZERO;
+ }
+ if (IS_ZERO_256(a_fee)) {
+ return XCHANGE_CREATE_ERROR_FEE_IS_ZERO;
+ }
+ if (IS_ZERO_256(a_datoshi_sell)) {
+ return XCHANGE_CREATE_ERROR_VALUE_SELL_IS_ZERO;
+ }
+ const char* l_sign_str = dap_chain_wallet_check_sign(a_wallet);
+ uint256_t l_value = dap_chain_wallet_get_balance(a_wallet, a_net->pub.id, a_token_sell);
+ uint256_t l_value_sell = a_datoshi_sell;
+ if (!dap_strcmp(a_net->pub.native_ticker, a_token_sell)) {
+ if (SUM_256_256(l_value_sell, a_fee, &l_value_sell)) {
+ log_it(L_ERROR, "Integer overflow with sum of value and fee");
+ return XCHANGE_CREATE_ERROR_INTEGER_OVERFLOW_WITH_SUM_OF_VALUE_AND_FEE;
+ }
+ } else { // sell non-native ticker
+ uint256_t l_fee_value = dap_chain_wallet_get_balance(a_wallet, a_net->pub.id, a_net->pub.native_ticker);
+ if (compare256(l_fee_value, a_fee) == -1) {
+ return XCHANGE_CREATE_ERROR_NOT_ENOUGH_CASH_FOR_FEE_IN_SPECIFIED_WALLET;
+ }
+ }
+ if (compare256(l_value, l_value_sell) == -1) {
+ return XCHANGE_CREATE_ERROR_NOT_ENOUGH_CASH_IN_SPECIFIED_WALLET;
+ }
+ // Create the price
+ dap_chain_net_srv_xchange_price_t *l_price = DAP_NEW_Z(dap_chain_net_srv_xchange_price_t);
+ if (!l_price) {
+ log_it(L_CRITICAL, "Memory allocation error");
+ return XCHANGE_CREATE_ERROR_MEMORY_ALLOCATED;
+ }
+ l_price->wallet_str = dap_strdup(a_wallet->name);
+ dap_stpcpy(l_price->token_sell, a_token_sell);
+ l_price->net = a_net;
+ dap_stpcpy(l_price->token_buy, a_token_buy);
+ l_price->datoshi_sell = a_datoshi_sell;
+ l_price->rate = a_rate;
+ l_price->fee = a_fee;
+ // Create conditional transaction
+ dap_chain_datum_tx_t *l_tx = s_xchange_tx_create_request(l_price, a_wallet);
+ if (!l_tx) {
+ DAP_DELETE(l_price->wallet_str);
+ DAP_DELETE(l_price);
+ return XCHANGE_CREATE_ERROR_CAN_NOT_COMPOSE_THE_CONDITIONAL_TRANSACTION;
+ }
+ dap_hash_fast_t l_tx_hash ={};
+ dap_hash_fast(l_tx, dap_chain_datum_tx_get_size(l_tx), &l_tx_hash);
+ char* l_ret = NULL;
+ if(!(l_ret = s_xchange_tx_put(l_tx, a_net))) {
+ DAP_DELETE(l_price->wallet_str);
+ DAP_DELETE(l_price);
+ return XCHANGE_CREATE_ERROR_CAN_NOT_PUT_TRANSACTION_TO_MEMPOOL;
+ }
+ // To avoid confusion, the term "order" will apply to the original conditional exchange offer transactions.
+ *a_out_tx_hash = l_ret;
+ return XCHANGE_CREATE_ERROR_OK;
+}
+
+int dap_chain_net_srv_xchange_remove(dap_chain_net_t *a_net, dap_hash_fast_t *a_hash_tx, uint256_t a_fee,
+ dap_chain_wallet_t *a_wallet, char **a_out_hash_tx) {
+ if (!a_net || !a_hash_tx || !a_wallet) {
+ return XCHANGE_REMOVE_ERROR_INVALID_ARGUMENT;
+ }
+ if(IS_ZERO_256(a_fee)){
+ return XCHANGE_REMOVE_ERROR_FEE_IS_ZERO;
+ }
+ dap_chain_datum_tx_t *l_cond_tx = dap_ledger_tx_find_by_hash(a_net->pub.ledger, a_hash_tx);
+ if (!l_cond_tx) {
+ return XCHANGE_REMOVE_ERROR_CAN_NOT_FIND_TX;
+ }
+ dap_chain_net_srv_xchange_price_t *l_price = s_xchange_price_from_order(a_net, l_cond_tx, &a_fee, false);
+ if (!l_price) {
+ return XCHANGE_REMOVE_ERROR_CAN_NOT_CREATE_PRICE;
+ }
+ char* l_ret = s_xchange_tx_invalidate(l_price, a_wallet);
+ if (!l_ret){
+ DAP_DELETE(l_price);
+ return XCHANGE_REMOVE_ERROR_CAN_NOT_INVALIDATE_TX;
+ }
+ *a_out_hash_tx = l_ret;
+ DAP_DELETE(l_price);
+ return XCHANGE_REMOVE_ERROR_OK;
+}
+
+int dap_chain_net_srv_xchange_purchase(dap_chain_net_t *a_net, dap_hash_fast_t *a_order_hash, uint256_t a_value,
+ uint256_t a_fee, dap_chain_wallet_t *a_wallet, char **a_hash_out){
+ if (!a_net || !a_order_hash || !a_wallet || !a_hash_out) {
+ return XCHANGE_PURCHASE_ERROR_INVALID_ARGUMENT;
+ }
+ dap_chain_datum_tx_t *l_cond_tx = dap_ledger_tx_find_by_hash(a_net->pub.ledger, a_order_hash);
+ if (l_cond_tx) {
+ dap_chain_net_srv_xchange_price_t *l_price = s_xchange_price_from_order(a_net, l_cond_tx, &a_fee, false);
+ if(!l_price){
+ return XCHANGE_PURCHASE_ERROR_CAN_NOT_CREATE_PRICE;
+ }
+ // Create conditional transaction
+ char *l_ret = NULL;
+ dap_chain_datum_tx_t *l_tx = s_xchange_tx_create_exchange(l_price, a_wallet, a_value, a_fee);
+ if (l_tx && (l_ret = s_xchange_tx_put(l_tx, a_net)) &&
+ dap_hash_fast_is_blank(&l_price->order_hash)) {
+ char *l_order_hash_str = dap_hash_fast_to_str_new(a_order_hash);
+ dap_chain_net_srv_order_delete_by_hash_str_sync(l_price->net, l_order_hash_str);
+ DAP_DELETE(l_order_hash_str);
+ }
+ DAP_DELETE(l_price);
+ if (l_tx && l_ret){
+ *a_hash_out = l_ret;
+ return XCHANGE_PURCHASE_ERROR_OK;
+ } else
+ return XCHANGE_PURCHASE_ERROR_CAN_NOT_CREATE_EXCHANGE_TX;
+ } else {
+ return XCHANGE_PURCHASE_ERROR_SPECIFIED_ORDER_NOT_FOUND;
+ }
+}
diff --git a/modules/service/xchange/include/dap_chain_net_srv_xchange.h b/modules/service/xchange/include/dap_chain_net_srv_xchange.h
index 8a210f87af47adaa81865ff26c58c22d3c632bd4..0cd59476943d77e14e1a4e96fc3c71c660013a0e 100644
--- a/modules/service/xchange/include/dap_chain_net_srv_xchange.h
+++ b/modules/service/xchange/include/dap_chain_net_srv_xchange.h
@@ -61,3 +61,47 @@ void dap_chain_net_srv_xchange_deinit();
json_object *dap_chain_net_srv_xchange_print_fee_json(dap_chain_net_t *a_net);
void dap_chain_net_srv_xchange_print_fee(dap_chain_net_t *a_net, dap_string_t *a_string_ret);
+
+enum dap_chain_net_srv_xchange_create_error_list{
+ XCHANGE_CREATE_ERROR_OK = 0,
+ XCHANGE_CREATE_ERROR_INVALID_ARGUMENT,
+ XCHANGE_CREATE_ERROR_TOKEN_TICKER_SELL_IS_NOT_FOUND_LEDGER,
+ XCHANGE_CREATE_ERROR_TOKEN_TICKER_BUY_IS_NOT_FOUND_LEDGER,
+ XCHANGE_CREATE_ERROR_RATE_IS_ZERO,
+ XCHANGE_CREATE_ERROR_FEE_IS_ZERO,
+ XCHANGE_CREATE_ERROR_VALUE_SELL_IS_ZERO,
+ XCHANGE_CREATE_ERROR_INTEGER_OVERFLOW_WITH_SUM_OF_VALUE_AND_FEE,
+ XCHANGE_CREATE_ERROR_NOT_ENOUGH_CASH_FOR_FEE_IN_SPECIFIED_WALLET,
+ XCHANGE_CREATE_ERROR_NOT_ENOUGH_CASH_IN_SPECIFIED_WALLET,
+ XCHANGE_CREATE_ERROR_MEMORY_ALLOCATED,
+ XCHANGE_CREATE_ERROR_CAN_NOT_COMPOSE_THE_CONDITIONAL_TRANSACTION,
+ XCHANGE_CREATE_ERROR_CAN_NOT_PUT_TRANSACTION_TO_MEMPOOL,
+};
+int dap_chain_net_srv_xchange_create(dap_chain_net_t *a_net, const char *a_token_buy,
+ const char *a_token_sell, uint256_t a_datoshi_sell,
+ uint256_t a_rate, uint256_t a_fee, dap_chain_wallet_t *a_wallet,
+ char **a_out_tx_hash);
+
+enum dap_chain_net_srv_xchange_remove_error_list{
+ XCHANGE_REMOVE_ERROR_OK = 0,
+ XCHANGE_REMOVE_ERROR_INVALID_ARGUMENT,
+ XCHANGE_REMOVE_ERROR_FEE_IS_ZERO,
+ XCHANGE_REMOVE_ERROR_CAN_NOT_FIND_TX,
+ XCHANGE_REMOVE_ERROR_CAN_NOT_CREATE_PRICE,
+ XCHANGE_REMOVE_ERROR_CAN_NOT_INVALIDATE_TX
+};
+int dap_chain_net_srv_xchange_remove(dap_chain_net_t *a_net, dap_hash_fast_t *a_hash_tx, uint256_t a_fee,
+ dap_chain_wallet_t *a_wallet, char **a_out_hash_tx);
+
+dap_list_t *dap_chain_net_srv_xchange_get_tx_xchange(dap_chain_net_t *a_net);
+dap_list_t *dap_chain_net_srv_xchange_get_prices(dap_chain_net_t *a_net);
+
+enum dap_chain_net_srv_xchange_purchase_error_list{
+ XCHANGE_PURCHASE_ERROR_OK = 0,
+ XCHANGE_PURCHASE_ERROR_INVALID_ARGUMENT,
+ XCHANGE_PURCHASE_ERROR_SPECIFIED_ORDER_NOT_FOUND,
+ XCHANGE_PURCHASE_ERROR_CAN_NOT_CREATE_PRICE,
+ XCHANGE_PURCHASE_ERROR_CAN_NOT_CREATE_EXCHANGE_TX,
+};
+int dap_chain_net_srv_xchange_purchase(dap_chain_net_t *a_net, dap_hash_fast_t *a_order_hash, uint256_t a_value,
+ uint256_t a_fee, dap_chain_wallet_t *a_wallet, char **a_hash_out);