fix: dont write quotes as scientific

swappy-bot/Commands/Swap/RoundTrip.cs

@@ -0,0 +1,83 @@
+namespace SwappyBot.Commands.Swap
+{
+    using System;
+
+    public static class RoundTrip
+    {
+        private static readonly string[] Zeros = new string[1000];
+
+        static RoundTrip()
+        {
+            for (var i = 0; i < Zeros.Length; i++)
+                Zeros[i] = new string('0', i);
+        }
+
+        public static string ToRoundTrip(this double value)
+        {
+            var str = value.ToString("r");
+            int x = str.IndexOf('E');
+            if (x < 0) return str;
+
+            int x1 = x + 1;
+            String exp = str.Substring(x1, str.Length - x1);
+            int e = int.Parse(exp);
+
+            String s = null;
+            int numDecimals = 0;
+            if (value < 0)
+            {
+                int len = x - 3;
+                if (e >= 0)
+                {
+                    if (len > 0)
+                    {
+                        s = str.Substring(0, 2) + str.Substring(3, len);
+                        numDecimals = len;
+                    }
+                    else
+                        s = str.Substring(0, 2);
+                }
+                else
+                {
+                    // remove the leading minus sign
+                    if (len > 0)
+                    {
+                        s = str.Substring(1, 1) + str.Substring(3, len);
+                        numDecimals = len;
+                    }
+                    else
+                        s = str.Substring(1, 1);
+                }
+            }
+            else
+            {
+                int len = x - 2;
+                if (len > 0)
+                {
+                    s = str[0] + str.Substring(2, len);
+                    numDecimals = len;
+                }
+                else
+                    s = str[0].ToString();
+            }
+
+            if (e >= 0)
+            {
+                e = e - numDecimals;
+                String z = (e < Zeros.Length ? Zeros[e] : new String('0', e));
+                s = s + z;
+            }
+            else
+            {
+                e = (-e - 1);
+                String z = (e < Zeros.Length ? Zeros[e] : new String('0', e));
+                if (value < 0)
+                    s = "-0." + z + s;
+                else
+                    s = "0." + z + s;
+            }
+
+            return s;
+        }
+    }
+}