Finishing Automatic Conversion from the Browser Currency

Stratis.Guru/Controllers/ApiController.cs

 using System;
+using System.Globalization;
 using System.Security.Cryptography.X509Certificates;
+using Microsoft.AspNetCore.Localization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Caching.Memory;
 using Microsoft.Extensions.Options;
 using NBitcoin;
 using NBitcoin.Networks;
 using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
 using RestSharp;
 using Stratis.Guru.Models;
 using Stratis.Guru.Settings;
@@ -27,22 +30,46 @@ namespace Stratis.Guru.Controllers
         
         [HttpGet]
         [Route("price")]
-        public ActionResult<object> Price(bool stringify, double amount = 1)
+        public ActionResult<object> Price(bool notApi = false, double amount = 1)
         {
             try
             {
                 dynamic coinmarketcap = JsonConvert.DeserializeObject(_memoryCache.Get("Coinmarketcap").ToString());
-                if (stringify)
+                if (notApi)
                 {
+                    var rqf = Request.HttpContext.Features.Get<IRequestCultureFeature>();
+            
+                    double displayPrice = 0;
+            
+                    if (rqf.RequestCulture.UICulture.ThreeLetterISOLanguageName.Equals("eng"))
+                    {
+                        displayPrice = coinmarketcap.data.quotes.USD.price;
+                    }
+                    else
+                    {
+                        dynamic fixerApiResponse = JsonConvert.DeserializeObject(_memoryCache.Get("Fixer").ToString());
+                        var dollarRate = fixerApiResponse.rates.USD;
+                        try
+                        {
+                            var regionInfo = new RegionInfo(rqf.RequestCulture.UICulture.Name.ToUpper());
+                            var browserCurrencyRate = (double) ((JObject) fixerApiResponse.rates)[regionInfo.ISOCurrencySymbol];
+                            displayPrice = 1 / (double) dollarRate * (double) coinmarketcap.data.quotes.USD.price * browserCurrencyRate;
+                        }
+                        catch
+                        {
+                            // ignored
+                        }
+                    }
+                    
                     return new TickerApi
                     {
-                        UsdPrice = (coinmarketcap.data.quotes.USD.price * amount).ToString("C"),
+                        UsdPrice = (displayPrice * amount).ToString("C"),
                         Last24Change = (coinmarketcap.data.quotes.USD.percent_change_24h / 100).ToString("P2")
                     };
                 }
                 return new Ticker
                 {
-                    UsdPrice = coinmarketcap.data.quotes.USD.price * amount,
+                    DisplayPrice = coinmarketcap.data.quotes.USD.price * amount,
                     Last24Change = coinmarketcap.data.quotes.USD.percent_change_24h / 100
                 };
             }

Stratis.Guru/Controllers/HomeController.cs

@@ -4,13 +4,17 @@ using System.Data;
 using System.Diagnostics;
 using System.Drawing;
 using System.Drawing.Imaging;
+using System.Globalization;
 using System.IO;
 using System.Linq;
+using System.Threading;
 using System.Threading.Tasks;
+using Microsoft.AspNetCore.Localization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Caching.Memory;
 using NBitcoin;
 using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
 using QRCoder;
 using Stratis.Guru.Models;
 using Stratis.Guru.Modules;
@@ -30,11 +34,38 @@ namespace Stratis.Guru.Controllers
         
         public IActionResult Index()
         {
+            var rqf = Request.HttpContext.Features.Get<IRequestCultureFeature>();
+            
+            double displayPrice = 0;
+            double last24Change = 0;
+            
             dynamic coinmarketcap = JsonConvert.DeserializeObject(_memoryCache.Get("Coinmarketcap").ToString());
+            last24Change = coinmarketcap.data.quotes.USD.percent_change_24h / 100;
+            
+            if (rqf.RequestCulture.UICulture.ThreeLetterISOLanguageName.Equals("eng"))
+            {
+                displayPrice = coinmarketcap.data.quotes.USD.price;
+            }
+            else
+            {
+                dynamic fixerApiResponse = JsonConvert.DeserializeObject(_memoryCache.Get("Fixer").ToString());
+                var dollarRate = fixerApiResponse.rates.USD;
+                try
+                {
+                    var regionInfo = new RegionInfo(rqf.RequestCulture.UICulture.Name.ToUpper());
+                    var browserCurrencyRate = (double) ((JObject) fixerApiResponse.rates)[regionInfo.ISOCurrencySymbol];
+                    displayPrice = 1 / (double) dollarRate * (double) coinmarketcap.data.quotes.USD.price * browserCurrencyRate;
+                }
+                catch
+                {
+                    // ignored
+                }
+            }
+            
             return View(new Ticker
             {
-                UsdPrice = coinmarketcap.data.quotes.USD.price,
-                Last24Change = coinmarketcap.data.quotes.USD.percent_change_24h/100
+                DisplayPrice = displayPrice,
+                Last24Change = last24Change
             });
         }
 

Stratis.Guru/Models/Ticker.cs

@@ -2,7 +2,7 @@ namespace Stratis.Guru.Models
 {
     public class Ticker
     {
-        public double UsdPrice { get; set; }
+        public double DisplayPrice { get; set; }
         public double Last24Change { get; set; }
     }
 }
\ No newline at end of file

Stratis.Guru/Services/FixerService.cs

@@ -2,6 +2,7 @@ using System;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Caching.Distributed;
+using Microsoft.Extensions.Caching.Memory;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Options;
 using Newtonsoft.Json;
@@ -12,14 +13,14 @@ namespace Stratis.Guru.Services
 {
     public class FixerService : IHostedService, IDisposable
     {
-        private FixerApiSettings _options;
-        private IDistributedCache _distributedCache;
         private Timer _timer;
+        private readonly FixerApiSettings _options;
+        private readonly IMemoryCache _memoryCache;
 
-        public FixerService(IOptions<FixerApiSettings> options, IDistributedCache distributedCache)
+        public FixerService(IOptions<FixerApiSettings> options, IMemoryCache memoryCache)
         {
             _options = options.Value;
-            _distributedCache = distributedCache;
+            _memoryCache = memoryCache;
         }
         
         public Task StartAsync(CancellationToken cancellationToken)
@@ -34,7 +35,7 @@ namespace Stratis.Guru.Services
             var rq = new RestRequest(Method.GET);
             rs.ExecuteAsync(rq, delegate(IRestResponse response)
             {
-                _distributedCache.SetString("Fixer", response.Content);
+                _memoryCache.Set("Fixer", response.Content);
             });
         }
 

Stratis.Guru/Startup.cs

@@ -7,8 +7,8 @@ using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
-using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.HttpsPolicy;
+using Microsoft.AspNetCore.Localization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
@@ -18,32 +18,31 @@ using Stratis.Guru.Models;
 using Stratis.Guru.Modules;
 using Stratis.Guru.Services;
 using Stratis.Guru.Settings;
+using static Microsoft.AspNetCore.Http.SameSiteMode;
 
 namespace Stratis.Guru
 {
     public class Startup
     {
-        public IConfiguration Configuration { get; }
+        private IConfiguration Configuration { get; }
         
         public Startup(IConfiguration configuration)
         {
             Configuration = configuration;
         }
 
-        // This method gets called by the runtime. Use this method to add services to the container.
         public void ConfigureServices(IServiceCollection services)
         {
             services.Configure<CookiePolicyOptions>(options =>
             {
-                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                 options.CheckConsentNeeded = context => true;
-                options.MinimumSameSitePolicy = SameSiteMode.None;
+                options.MinimumSameSitePolicy = None;
             });
             services.Configure<NakoApiSettings>(Configuration.GetSection("NakoApi"));
             services.Configure<FixerApiSettings>(Configuration.GetSection("FixerApi"));
             
-            Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
-            Thread.CurrentThread.CurrentUICulture = new CultureInfo("en-US");
+            /*Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
+            Thread.CurrentThread.CurrentUICulture = new CultureInfo("en-US");*/
             
             services.AddMemoryCache();
             
@@ -59,7 +58,6 @@ namespace Stratis.Guru
             services.AddSignalR();
         }
 
-        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
         public void Configure(IApplicationBuilder app, IHostingEnvironment env)
         {
             if (env.IsDevelopment())
@@ -94,6 +92,23 @@ namespace Stratis.Guru
                 DefaultFilesOptions = { DefaultFileNames = {"index.html"}}
             });
             
+            var supportedCultures = new[]
+            {
+                new CultureInfo("en"),
+                new CultureInfo("fr"),
+                new CultureInfo("ru"),
+                new CultureInfo("it"),
+                new CultureInfo("de"),
+                new CultureInfo("cn")
+            };
+
+            app.UseRequestLocalization(new RequestLocalizationOptions
+            {
+                DefaultRequestCulture = new RequestCulture("en-US"),
+                SupportedCultures = supportedCultures,
+                SupportedUICultures = supportedCultures
+            });
+            
             app.UseSignalR(routes =>
             {
                 routes.MapHub<UpdateHub>("/update");

Stratis.Guru/Views/Home/Index.cshtml

-@model Ticker
+@using System.Globalization
+@model Ticker
 @{
     ViewBag.Title = "Online Stratis ($STRAT) price ticker";
 }
@@ -12,8 +13,8 @@
                         <div class="d-inline-block align-middle">
                             <span class="click-edit" spellcheck="false">1</span> STRAT <span class="d-none d-lg-inline-block">=</span>
                         </div>
-                        <span class="align-middle display-1 font-weight-bold" id="amount">@(Model.UsdPrice.ToString("C2"))</span>
-                        <span id="lastchange" class="d-block d-lg-inline-block change-@(Model.Last24Change > 0 ? "success":"danger") font-weight-bold"><sup> <span class="d-none d-lg-inline-block">@((Model.Last24Change > 0 ? "+":""))</span> @(Model.Last24Change.ToString("P2"))</sup></span>
+                        <span class="align-middle display-1 font-weight-bold" id="amount">@(Model.DisplayPrice.ToString("C2"))</span>
+                        <span id="lastchange" class="d-block d-lg-inline-block change-@(Model.Last24Change > 0 ? "success":"danger") font-weight-bold"><sup> <span class="d-none d-lg-inline-block">@((Model.Last24Change > 0 ? "+":""))</span> <span class="inner">@(Model.Last24Change.ToString("P2"))</span></sup></span>
                     </h1>
                     <a asp-controller="BlockExplorer" asp-action="Index" class="btn-secondary-box"><i class="fa fa-cube"></i> Go to Block Explorer</a>
                 </div>
@@ -26,13 +27,13 @@
     <script src="~/npm/@@aspnet/signalr/dist/browser/signalr.min.js"></script>
     <script type="text/javascript">
         $(document).ready(function() {
-            var stratisPrice = @Model.UsdPrice;
+            var stratisPrice = @Model.DisplayPrice.ToString("N", new CultureInfo("en-US"));
             var stratisAmount = 1;
             function UpdateTicker() {
                 NProgress.start();
-                $.getJSON("/api/price?stringify=true&amount=" + stratisAmount, function(e) {
+                $.getJSON("/api/price?notApi=true&amount=" + stratisAmount, function(e) {
                     $("#amount").text(e.usdPrice);
-                    $("#lastchange").text(e.last24Change);
+                    $("#lastchange").find(".inner").text(e.last24Change);
                     NProgress.done(); 
                 });
             }