Add link to no stores error (#558)

* add link

* safer status message

* refactor

* small view cleanup

BTCPayServer.Tests/UnitTest1.cs

@@ -2312,6 +2312,42 @@ donation:
             Assert.Throws<InvalidOperationException>(() => fetch.GetRatesAsync().GetAwaiter().GetResult());
         }
 
+        [Fact]
+        [Trait("Fast", "Fast")]
+        public void CheckParseStatusMessageModel()
+        {
+            var legacyStatus = "Error: some bad shit happened";
+            var parsed = new StatusMessageModel(legacyStatus);
+            Assert.Equal(legacyStatus, parsed.Message);
+            Assert.Equal(StatusMessageModel.StatusSeverity.Error, parsed.Severity);
+            
+            var legacyStatus2 = "Some normal shit happened";
+            parsed = new StatusMessageModel(legacyStatus2);
+            Assert.Equal(legacyStatus2, parsed.Message);
+            Assert.Equal(StatusMessageModel.StatusSeverity.Success, parsed.Severity);
+
+            var newStatus = new StatusMessageModel()
+            {
+                Html = "<a href='xxx'>something new</a>",
+                Severity = StatusMessageModel.StatusSeverity.Info
+            };
+            parsed = new StatusMessageModel(newStatus.ToString());
+            Assert.Null(parsed.Message);
+            Assert.Equal(newStatus.Html, parsed.Html);
+            Assert.Equal(StatusMessageModel.StatusSeverity.Info, parsed.Severity);
+            
+            var newStatus2 = new StatusMessageModel()
+            {
+                Message = "something new",
+                Severity = StatusMessageModel.StatusSeverity.Success
+            };
+            parsed = new StatusMessageModel(newStatus2.ToString());
+            Assert.Null(parsed.Html);
+            Assert.Equal(newStatus2.Message, parsed.Message);
+            Assert.Equal(StatusMessageModel.StatusSeverity.Success, parsed.Severity);
+
+        }
+
         private static bool IsMapped(Invoice invoice, ApplicationDbContext ctx)
         {
             var h = BitcoinAddress.Create(invoice.BitcoinAddress, Network.RegTest).ScriptPubKey.Hash.ToString();

BTCPayServer/Controllers/AppsController.cs

@@ -73,7 +73,12 @@ namespace BTCPayServer.Controllers
             var stores = await _AppsHelper.GetOwnedStores(GetUserId());
             if (stores.Length == 0)
             {
-                StatusMessage = "Error: You must have created at least one store";
+                StatusMessage = new StatusMessageModel()
+                {
+                    Html =
+                        $"Error: You must have created at least one store. <a href='{(Url.Action("CreateStore", "UserStores"))}'>Create store</a>",
+                    Severity = StatusMessageModel.StatusSeverity.Error
+                }.ToString();
                 return RedirectToAction(nameof(ListApps));
             }
             var vm = new CreateAppViewModel();
@@ -88,7 +93,12 @@ namespace BTCPayServer.Controllers
             var stores = await _AppsHelper.GetOwnedStores(GetUserId());
             if (stores.Length == 0)
             {
-                StatusMessage = "Error: You must own at least one store";
+                StatusMessage = new StatusMessageModel()
+                {
+                    Html =
+                        $"Error: You must have created at least one store. <a href='{(Url.Action("CreateStore", "UserStores"))}'>Create store</a>",
+                    Severity = StatusMessageModel.StatusSeverity.Error
+                }.ToString();
                 return RedirectToAction(nameof(ListApps));
             }
             var selectedStore = vm.SelectedStore;

BTCPayServer/Models/StatusMessageModel.cs

@@ -0,0 +1,80 @@
+using System;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Models
+{
+    public class StatusMessageModel
+    {
+        public StatusMessageModel()
+        {
+        }
+
+        public StatusMessageModel(string s)
+        {
+            if (string.IsNullOrEmpty(s))
+                return;
+            try
+            {
+                if (s.StartsWith("{", StringComparison.InvariantCultureIgnoreCase) &&
+                    s.EndsWith("}", StringComparison.InvariantCultureIgnoreCase))
+                {
+                    var model = JObject.Parse(s).ToObject<StatusMessageModel>();
+                    Html = model.Html;
+                    Message = model.Message;
+                    Severity = model.Severity;
+                }
+                else
+                {
+                    ParseNonJsonStatus(s);
+                }
+            }
+            catch (Exception e)
+            {
+                ParseNonJsonStatus(s);
+            }
+        }
+
+        public string Message { get; set; }
+        public string Html { get; set; }
+        public StatusSeverity Severity { get; set; }
+
+        public string SeverityCSS
+        {
+            get
+            {
+                switch (Severity)
+                {
+                    case StatusSeverity.Info:
+                        return "info";
+                    case StatusSeverity.Error:
+                        return "danger";
+                    case StatusSeverity.Success:
+                        return "success";
+                    default:
+                        throw new ArgumentOutOfRangeException();
+                }
+            }
+        }
+
+        public override string ToString()
+        {
+            return JObject.FromObject(this).ToString(Formatting.None);
+        }
+        
+        private void ParseNonJsonStatus(string s)
+        {
+            Message = s;
+            Severity = s.StartsWith("Error", StringComparison.InvariantCultureIgnoreCase)
+                ? StatusSeverity.Error
+                : StatusSeverity.Success;
+        }
+
+        public enum StatusSeverity
+        {
+            Info,
+            Error,
+            Success
+        }
+    }
+}

BTCPayServer/Views/Shared/_StatusMessage.cshtml

@@ -1,10 +1,17 @@
 @model string
 
-@if(!String.IsNullOrEmpty(Model))
+@if(!string.IsNullOrEmpty(Model))
 {
-    var statusMessageClass = Model.StartsWith("Error") ? "danger" : "success";
+    var parsedModel = new StatusMessageModel(Model);
-    <div class="alert alert-@statusMessageClass alert-dismissible" role="alert">
+    <div class="alert alert-@parsedModel.SeverityCSS alert-dismissible" role="alert">
         <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button>
-        @Model
+        @if (!string.IsNullOrEmpty(parsedModel.Message))
+        {
+            @parsedModel.Message
+        }
+        @if (!string.IsNullOrEmpty(parsedModel.Html))
+        {
+            @Html.Raw(parsedModel.Html)
+        }
     </div>
 }