From 2bc6499f1b040ed8b3043d2b829a4f47e0fdafa5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20Schj=C3=B8nhaug?= <andreas@schjonhaug.com>
Date: Mon, 2 Dec 2024 11:47:35 +0100
Subject: [PATCH] Added support for Bitmynt and Bare Bitcoin

---
 .../Providers/BareBitcoinRateProvider.cs      | 39 +++++++++++++++++++
 .../Providers/BitmyntRateProvider.cs          | 39 +++++++++++++++++++
 BTCPayServer/Hosting/BTCPayServerServices.cs  |  2 +
 3 files changed, 80 insertions(+)
 create mode 100644 BTCPayServer.Rating/Providers/BareBitcoinRateProvider.cs
 create mode 100644 BTCPayServer.Rating/Providers/BitmyntRateProvider.cs

diff --git a/BTCPayServer.Rating/Providers/BareBitcoinRateProvider.cs b/BTCPayServer.Rating/Providers/BareBitcoinRateProvider.cs
new file mode 100644
index 000000000..6ca0d5239
--- /dev/null
+++ b/BTCPayServer.Rating/Providers/BareBitcoinRateProvider.cs
@@ -0,0 +1,39 @@
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Rating;
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Services.Rates
+{
+    public class BareBitcoinRateProvider : IRateProvider
+    {
+        private readonly HttpClient _httpClient;
+        
+        public RateSourceInfo RateSourceInfo => new("barebitcoin", "Bare Bitcoin", "https://api.bb.no/price");
+
+        public BareBitcoinRateProvider(HttpClient httpClient)
+        {
+            _httpClient = httpClient ?? new HttpClient();
+        }
+
+        public async Task<PairRate[]> GetRatesAsync(CancellationToken cancellationToken)
+        {
+            using var response = await _httpClient.GetAsync(RateSourceInfo.Url, cancellationToken);
+            response.EnsureSuccessStatusCode();
+            
+            var jobj = await response.Content.ReadAsAsync<JObject>(cancellationToken);
+            
+            // Extract market and otc prices
+            var market = jobj["market"].Value<decimal>();
+            var buy = jobj["buy"].Value<decimal>();
+            var sell = jobj["sell"].Value<decimal>();
+
+            // Create currency pair for BTC/NOK
+            var pair = new CurrencyPair("BTC", "NOK");
+            
+            // Return single pair rate with sell/buy as bid/ask
+            return new[] { new PairRate(pair, new BidAsk(sell, buy)) };
+        }
+    }
+}
\ No newline at end of file
diff --git a/BTCPayServer.Rating/Providers/BitmyntRateProvider.cs b/BTCPayServer.Rating/Providers/BitmyntRateProvider.cs
new file mode 100644
index 000000000..fec24f906
--- /dev/null
+++ b/BTCPayServer.Rating/Providers/BitmyntRateProvider.cs
@@ -0,0 +1,39 @@
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Rating;
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Services.Rates
+{
+    public class BitmyntRateProvider : IRateProvider
+    {
+        private readonly HttpClient _httpClient;
+        
+        public RateSourceInfo RateSourceInfo => new("bitmynt", "Bitmynt", "https://ny.bitmynt.no/data/rates.json");
+
+        public BitmyntRateProvider(HttpClient httpClient)
+        {
+            _httpClient = httpClient ?? new HttpClient();
+        }
+
+        public async Task<PairRate[]> GetRatesAsync(CancellationToken cancellationToken)
+        {
+            using var response = await _httpClient.GetAsync(RateSourceInfo.Url, cancellationToken);
+            response.EnsureSuccessStatusCode();
+            
+            var jobj = await response.Content.ReadAsAsync<JObject>(cancellationToken);
+            
+            // Extract bid and ask prices from current_rate object
+            var currentRate = jobj["current_rate"];
+            var bid = currentRate["bid"].Value<decimal>();
+            var ask = currentRate["ask"].Value<decimal>();
+
+            // Create currency pair for BTC/NOK
+            var pair = new CurrencyPair("BTC", "NOK");
+            
+            // Return single pair rate with bid/ask
+            return new[] { new PairRate(pair, new BidAsk(bid, ask)) };
+        }
+    }
+}
\ No newline at end of file
diff --git a/BTCPayServer/Hosting/BTCPayServerServices.cs b/BTCPayServer/Hosting/BTCPayServerServices.cs
index 36949f1b3..698fb2d6a 100644
--- a/BTCPayServer/Hosting/BTCPayServerServices.cs
+++ b/BTCPayServer/Hosting/BTCPayServerServices.cs
@@ -587,6 +587,8 @@ o.GetRequiredService<IEnumerable<IPaymentLinkExtension>>().ToDictionary(o => o.P
             services.AddRateProvider<YadioRateProvider>();
             services.AddRateProvider<BtcTurkRateProvider>();
             services.AddRateProvider<FreeCurrencyRatesRateProvider>();
+            services.AddRateProvider<BitmyntRateProvider>();
+            services.AddRateProvider<BareBitcoinRateProvider>();
 
             services.AddSingleton<InvoiceBlobMigratorHostedService>();
             services.AddSingleton<IHostedService, InvoiceBlobMigratorHostedService>(o => o.GetRequiredService<InvoiceBlobMigratorHostedService>());