Don't make unnecessary calls to update ad equations

handler/agora.py

@@ -355,10 +355,27 @@ class Agora(object):
                 if asset == "BTC":
                     new_margin = self.autoprice(public_ads, currency)
                     new_formula = f"coingeckobtcusd*usd{currency.lower()}*{new_margin}"
+            # Get all of our ads
+            our_ads_list = [ad for ad in public_ads if ad[1] == settings.Agora.Username]
+            if not len(our_ads_list) == 1:
+                self.log.error("More ads than expected: {ads}", ads=our_ads_list)
+            # Get one from the list, they're probably the same, if not we will deal with the other
+            #  ones in a later pass
+
+            # Get one
+            our_ad = our_ads_list.pop()
+
+            # Take the 4th argument, the margin
+            our_margin = our_ad[3]
+
+            # Don't waste API rate limits on setting the same margin as before
+            if new_margin != our_margin:
                 rtrn = self.agora.ad_equation(ad_id, new_formula)
                 if not rtrn["success"]:
                     self.log.error("Error updating ad {ad_id}: {response}", ad_id=ad_id, response=rtrn["response"])
                 self.log.info("Rate for {currency}: {margin}", currency=currency, margin=new_margin)
+            else:
+                self.log.info("Not changed rate for {currency}, keeping old margin of {margin}", currency=currency, margin=our_margin)
 
     def autoprice(self, ads, currency):
         """