Gmx v2 - Funding rates (#6)

* Setup GMX v2

* Add get markets

* Map token with service

* Add get market info data

* Add get markets

* Add get market token prices

* Get markets infos multicall

* Try call datastore

* Add some tests to figure out why datastore call dont work

* Update funding rates

* clean

src/Managing.Infrastructure.Web3/Services/Gmx/GmxV2Helpers.cs

@@ -0,0 +1,70 @@
+using System.Numerics;
+using Microsoft.Extensions.Caching.Memory;
+using Nethereum.ABI;
+using Nethereum.Util;
+
+namespace Managing.Infrastructure.Evm.Models.Gmx.v2;
+
+public class GmxV2Helpers
+{
+    private readonly MemoryCache _dataCache = new MemoryCache(new MemoryCacheOptions { SizeLimit = 10000 });
+    private readonly MemoryCache _stringCache = new MemoryCache(new MemoryCacheOptions { SizeLimit = 10000 });
+    private readonly ABIEncode _abiEncode = new ABIEncode();
+    private readonly MemoryCacheEntryOptions _absoluteExpiration = new MemoryCacheEntryOptions { Size = 1 };
+
+
+    public byte[] HashData(string[] dataTypes, object[] dataValues)
+    {
+        var key = GenerateKey(dataTypes, dataValues);
+
+        if (_dataCache.TryGetValue(key, out byte[] cachedHash))
+        {
+            return cachedHash;
+        }
+
+        var abiValues = new List<ABIValue>();
+        foreach (var dataType in dataTypes)
+        {
+            var abiValue = new ABIValue(dataType, dataValues[dataTypes.ToList().IndexOf(dataType)]);
+            abiValues.Add(abiValue);
+        }
+
+        var abiEncode = new ABIEncode();
+        var encoded = abiEncode.GetABIEncoded(abiValues.ToArray());
+        var hash = new Sha3Keccack().CalculateHash(encoded);
+        _dataCache.Set(key, hash, _absoluteExpiration);
+
+        return hash;
+    }
+
+
+    public byte[] HashString(string input)
+    {
+        if (_stringCache.TryGetValue(input, out byte[] cachedHash))
+        {
+            return cachedHash;
+        }
+
+        // Adjusted to directly work with byte arrays
+        var hash = HashData(new[] { "string" }, new string[] { input });
+        _stringCache.Set(input, hash, _absoluteExpiration);
+
+        return hash;
+    }
+
+    private string GenerateKey(string[] dataTypes, object[] dataValues)
+    {
+        var combined = new List<string>();
+        for (int i = 0; i < dataTypes.Length; i++)
+        {
+            combined.Add($"{dataTypes[i]}:{(dataValues[i] is BigInteger bigInt ? bigInt.ToString() : dataValues[i])}");
+        }
+
+        return string.Join(",", combined);
+    }
+
+    public static bool SameAddress(string address, string address2)
+    {
+        return address.ToLower() == address2.ToLower();
+    }
+}