Test

iguana/exchanges/LP_tradebots.c

@@ -399,11 +399,37 @@ char *LP_tradebot_list(void *ctx,int32_t pubsock,cJSON *argjson)
 
 char *LP_tradebot_buy(int32_t dispdir,char *base,char *rel,double maxprice,double relvolume)
 {
-    struct LP_tradebot *bot; struct iguana_info *basecoin,*relcoin;
+    struct LP_tradebot *bot; int32_t i,n; cJSON *array,*item,*retjson; uint64_t txfees,balance=0; struct iguana_info *basecoin,*relcoin;
     basecoin = LP_coinfind(base);
     relcoin = LP_coinfind(rel);
     if ( basecoin == 0 || relcoin == 0 || basecoin->inactive != 0 || relcoin->inactive != 0 )
         return(clonestr("{\"error\":\"one or more coins inactive\"}"));
+    if ( (array= LP_inventory(rel)) != 0 )
+    {
+        if ( (n= cJSON_GetArraySize(array)) > 0 && is_cJSON_Array(array) != 0 )
+        {
+            for (i=0; i<n; i++)
+            {
+                item = jitem(array,i);
+                //valuesum += j64bits(item,"value") + j64bits(item,"value2");
+                balance += j64bits(item,"satoshis");
+            }
+        }
+        free_json(array);
+    }
+    txfees = 10 * relcoin->txfee;
+    if ( dstr(balance) < relvolume + dstr(txfees) )
+    {
+        printf("%s inventory balance only %.8f, less than relvolume %.8f + txfees %.8f\n",rel,dstr(balance),relvolume,dstr(txfees));
+        retjson = cJSON_CreateObject();
+        jaddstr(retjson,"error","not enough funds");
+        jaddstr(retjson,"coin",rel);
+        jaddnum(retjson,"balance",dstr(balance));
+        jaddnum(retjson,"relvolume",relvolume);
+        jaddnum(retjson,"txfees",dstr(txfees));
+        jaddnum(retjson,"shortfall",(relvolume + dstr(txfees)) - dstr(balance));
+        return(jprint(retjson,1));
+    }
     printf("disp.%d tradebot_buy(%s / %s) maxprice %.8f relvolume %.8f\n",dispdir,base,rel,maxprice,relvolume);
     if ( (bot= calloc(1,sizeof(*bot))) != 0 )
     {