[FIX] Update comparison match logic for opposite amounts

.gitignore

@@ -4,3 +4,5 @@ coverage.html
 examples/server/server
 examples/client/client
 examples/fetcher/fetcher
+
+.idea/

parser/match_operations.go

@@ -437,16 +437,41 @@ func comparisonMatch(
 		if err := matchIndexValid(matches, amountMatch[1]); err != nil {
 			return fmt.Errorf("%w: opposite amounts comparison error", err)
 		}
-		for _, op := range matches[amountMatch[0]].Operations {
-			for _, otherOp := range matches[amountMatch[1]].Operations {
-				if err := oppositeAmounts(
-					op,
-					otherOp,
-				); err != nil {
-					return fmt.Errorf("%w: amounts not opposites", err)
-				}
+
+		match1Ops := matches[amountMatch[0]].Operations
+		match2Ops := matches[amountMatch[1]].Operations
+
+		if len(match1Ops) != len(match2Ops) {
+			return errors.New("opposite amounts comparison error: unequal length between match amounts")
+		}
+		// continue if nothing to compare
+		if len(match1Ops) == 0 {
+			continue
+		}
+		// check if all operations within the same match slice have the same amount
+		for i := 1; i < len(match1Ops); i++ {
+			if err := equalAmounts([]*types.Operation{
+				match1Ops[i-1],
+				match1Ops[i],
+			}); err != nil {
+				return fmt.Errorf(
+					"%w: opposite amounts comparison error: amounts not equal within the same match amounts array", err)
+			}
+			if err := equalAmounts([]*types.Operation{
+				match2Ops[i-1],
+				match2Ops[i],
+			}); err != nil {
+				return fmt.Errorf(
+					"%w: opposite amounts comparison error: amounts not equal within the same match amounts array", err)
 			}
 		}
+		// check for opposites amount
+		if err := oppositeAmounts(
+			match1Ops[0],
+			match2Ops[0],
+		); err != nil {
+			return fmt.Errorf("%w: amounts not opposites", err)
+		}
 	}
 
 	return nil