Changelly Support (#267)

* Disable shapeshift and use changelly * UI to manage changelly payment method * wip on changelly api * Add in Vue component for changelly and remove target currency from payment method * add changelly merhcant id * Small fixes to get Conversion to load * wip fixing the component * fix merge conflict * fixes to UI * remove debug, fix fee calc and move changelly to own partials * Update ChangellyController.cs * move original vue setup back to checkout * Update core.js * Extracting Changelly component to js file * Proposal for loading spinner * remove zone * imrpove changelly ui * add in changelly config checks * try new method to calculate amount + remove to currency from list * abstract changelly lofgic to provider and reduce dependency on js component * Add UTs for Changelly * refactor changelly backend * fix failing UT * add shitcoin tax * pr changes * pr changes
2025-12-18 14:34:23 +01:00 · 2018-10-18 05:13:39 +02:00
parent e18d0b5d51
commit a5fca7a1c4
23 changed files with 986 additions and 99 deletions
--- a/BTCPayServer/Controllers/ChangellyController.cs
+++ b/BTCPayServer/Controllers/ChangellyController.cs
@@ -0,0 +1,103 @@
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Models;
+using BTCPayServer.Payments.Changelly;
+using Changelly.ResponseModel;
+using Microsoft.AspNetCore.Mvc;
+
+namespace BTCPayServer.Controllers
+{
+    [Route("[controller]/{storeId}")]
+    public class ChangellyController : Controller
+    {
+        private readonly ChangellyClientProvider _changellyClientProvider;
+
+        public ChangellyController(ChangellyClientProvider changellyClientProvider)
+        {
+            _changellyClientProvider = changellyClientProvider;
+        }
+
+        [HttpGet]
+        [Route("currencies")]
+        public async Task<IActionResult> GetCurrencyList(string storeId)
+        {
+            if (!TryGetChangellyClient(storeId, out var actionResult, out var client))
+            {
+                return actionResult;
+            }
+
+            var result = _changellyClientProvider.GetCurrenciesFull(client);
+            if (result.Success)
+            {
+                return Ok(result);
+            }
+
+            return BadRequest(result);
+        }
+
+        [HttpGet]
+        [Route("calculate")]
+        public IActionResult CalculateAmount(string storeId, string fromCurrency, string toCurrency,
+            double toCurrencyAmount)
+        {
+            if (!TryGetChangellyClient(storeId, out var actionResult, out var client))
+            {
+                return actionResult;
+            }
+
+            double? currentAmount = null;
+            var callCounter = 0;
+
+            var response1 = _changellyClientProvider.GetExchangeAmount(client,fromCurrency, toCurrency, 1);
+            if (!response1.Success) return BadRequest(response1);
+            currentAmount = response1.amount;
+
+            while (true)
+            {
+                if (callCounter > 10)
+                {
+                    BadRequest();
+                }
+                
+                //Client needs to be reset between same calls for some reason
+                if (!TryGetChangellyClient(storeId, out actionResult, out client))
+                {
+                    return actionResult;
+                }
+
+                var response2 = _changellyClientProvider.GetExchangeAmount(client,fromCurrency, toCurrency, currentAmount.Value);
+                callCounter++;
+                if (!response2.Success) return BadRequest(response2);
+                if (response2.amount < toCurrencyAmount)
+                {
+                    var newCurrentAmount = ((toCurrencyAmount / response2.amount) * 1) * currentAmount.Value;
+                    currentAmount = newCurrentAmount;
+                }
+                else
+                {
+                    return Ok(currentAmount.Value);
+                }
+            }
+        }
+
+        private bool TryGetChangellyClient(string storeId, out IActionResult actionResult,
+            out Changelly.Changelly changelly)
+        {
+            changelly = null;
+            actionResult = null;
+            storeId = storeId ?? HttpContext.GetStoreData()?.Id;
+
+            if (!_changellyClientProvider.TryGetChangellyClient(storeId, out var error, out changelly))
+            {
+                actionResult = BadRequest(new BitpayErrorModel()
+                {
+                    Error = error
+                });
+                return false;
+            }
+
+            return true;
+        }
+    }
+}