allow admin update default rate provider and default currency for stores (#5918)

* allow admin update default rate provider and default currency for stores

* Updated PR on allowing server admin to update currency

* update server settings to select default currency

* revert standard default currency

* clean up

* Minor rewording

---------

Co-authored-by: nicolas.dorier <nicolas.dorier@gmail.com>

BTCPayServer/Controllers/UIUserStoresController.cs

@@ -6,6 +6,7 @@ using BTCPayServer.Abstractions.Models;
 using BTCPayServer.Client;
 using BTCPayServer.Data;
 using BTCPayServer.Models.StoreViewModels;
+using BTCPayServer.Services;
 using BTCPayServer.Services.Rates;
 using BTCPayServer.Services.Stores;
 using Microsoft.AspNetCore.Authorization;
@@ -20,6 +21,7 @@ namespace BTCPayServer.Controllers
     public class UIUserStoresController : Controller
     {
         private readonly StoreRepository _repo;
+        private readonly SettingsRepository _settingsRepository;
         private readonly UserManager<ApplicationUser> _userManager;
         private readonly RateFetcher _rateFactory;
         public string CreatedStoreId { get; set; }
@@ -27,11 +29,13 @@ namespace BTCPayServer.Controllers
         public UIUserStoresController(
             UserManager<ApplicationUser> userManager,
             StoreRepository storeRepository,
-            RateFetcher rateFactory)
+            RateFetcher rateFactory,
+            SettingsRepository settingsRepository)
         {
             _repo = storeRepository;
             _userManager = userManager;
             _rateFactory = rateFactory;
+            _settingsRepository = settingsRepository;
         }
 
         [HttpGet]
@@ -62,7 +66,7 @@ namespace BTCPayServer.Controllers
             var vm = new CreateStoreViewModel
             {
                 IsFirstStore = !(stores.Any() || skipWizard),
-                DefaultCurrency = StoreBlob.StandardDefaultCurrency,
+                DefaultCurrency = (await _settingsRepository.GetSettingAsync<PoliciesSettings>())?.DefaultCurrency ?? StoreBlob.StandardDefaultCurrency,
                 Exchanges = GetExchangesSelectList(null)
             };
 

BTCPayServer/Services/PoliciesSettings.cs

@@ -72,6 +72,8 @@ namespace BTCPayServer.Services
 
         [Display(Name = "Show plugins in pre-release")]
         public bool PluginPreReleases { get; set; }
+        [Display(Name = "Select the Default Currency during Store Creation")]
+        public string DefaultCurrency { get; set; }
 
         public bool DisableSSHService { get; set; }
 

BTCPayServer/Views/UIServer/Policies.cshtml

@@ -185,6 +185,10 @@
             </div>
 
             <h4 class="mt-5">Customization</h4>
+            <div class="form-group mb-3">
+                <label asp-for="DefaultCurrency" class="form-label"></label>
+                <input asp-for="DefaultCurrency" placeholder="Default Store Currency" class="form-control" currency-selection  />
+            </div>
             <div class="form-group mb-5">
                 <label asp-for="RootAppId" class="form-label"></label>
                 <select asp-for="RootAppId" asp-items="@(new SelectList(ViewBag.AppsList, nameof(SelectListItem.Value), nameof(SelectListItem.Text), Model.RootAppId))" class="form-select"></select>

BTCPayServer/Views/UIServer/_Nav.cshtml

@@ -1,4 +1,4 @@
-@using BTCPayServer.Configuration
+@using BTCPayServer.Configuration
 @inject BTCPayServerOptions _btcPayServerOptions
 
 <div class="sticky-header mb-l">