Improve error messages when the store has no payment method configured

BTCPayServer/Controllers/InvoiceController.cs

@@ -155,7 +155,7 @@ namespace BTCPayServer.Controllers
             if (supported.Count == 0)
             {
                 StringBuilder errors = new StringBuilder();
-                errors.AppendLine("No payment method available for this store");
+                errors.AppendLine("Warning: No wallet has been linked to your BTCPay Store. See the following link for more information on how to connect your store and wallet. (https://docs.btcpayserver.org/btcpay-basics/gettingstarted#connecting-btcpay-store-to-your-wallet)");
                 foreach (var error in logs.ToList())
                 {
                     errors.AppendLine(error.ToString());

BTCPayServer/Controllers/StoresController.cs

@@ -96,6 +96,11 @@ namespace BTCPayServer.Controllers
         {
             get; set;
         }
+        [TempData]
+        public bool StoreNotConfigured
+        {
+            get; set;
+        }
 
         [HttpGet]
         [Route("{storeId}/users")]
@@ -567,6 +572,7 @@ namespace BTCPayServer.Controllers
             var model = new TokensViewModel();
             var tokens = await _TokenRepository.GetTokensByStoreIdAsync(StoreData.Id);
             model.StatusMessage = StatusMessage;
+            model.StoreNotConfigured = StoreNotConfigured;
             model.Tokens = tokens.Select(t => new TokenViewModel()
             {
                 Facade = t.Facade,
@@ -794,6 +800,10 @@ namespace BTCPayServer.Controllers
             var pairingResult = await _TokenRepository.PairWithStoreAsync(pairingCode, store.Id);
             if (pairingResult == PairingResult.Complete || pairingResult == PairingResult.Partial)
             {
+                var excludeFilter = store.GetStoreBlob().GetExcludedPaymentMethods();
+                StoreNotConfigured = store.GetSupportedPaymentMethods(_NetworkProvider)
+                                          .Where(p => !excludeFilter.Match(p.PaymentId))
+                                          .Count() == 0;
                 StatusMessage = "Pairing is successful";
                 if (pairingResult == PairingResult.Partial)
                     StatusMessage = "Server initiated pairing code: " + pairingCode;

BTCPayServer/Models/StoreViewModels/TokensViewModel.cs

@@ -72,5 +72,6 @@ namespace BTCPayServer.Models.StoreViewModels
         [Display(Name = "API Key")]
         public string ApiKey { get; set; }
         public string EncodedApiKey { get; set; }
+        public bool StoreNotConfigured { get; set; }
     }
 }

BTCPayServer/Views/Stores/ListTokens.cshtml

@@ -5,6 +5,13 @@
 }
 
 <partial name="_StatusMessage" for="StatusMessage" />
+@if (Model.StoreNotConfigured)
+{
+    <div class="alert alert-warning alert-dismissible" role="alert">
+        <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button>
+        <span>Warning: No wallet has been linked to your BTCPay Store. See <a href="https://docs.btcpayserver.org/btcpay-basics/gettingstarted#connecting-btcpay-store-to-your-wallet" target="_blank">this link</a> for more information on how to connect your store and wallet.</span>
+    </div>
+}
 <h4>Access token</h4>
 <div class="row">
     <div class="col-md-8">
@@ -23,7 +30,7 @@
                 </tr>
             </thead>
             <tbody>
-                @foreach(var token in Model.Tokens)
+                @foreach (var token in Model.Tokens)
                 {
                     <tr>
                         <td>@token.Label</td>