Re-saving edited providers will forcibly save them

Fixes #533

Co-Authored-By: Mark McDowall <markus101@users.noreply.github.com>

frontend/src/Store/Actions/Creators/createSaveProviderHandler.js

@@ -6,6 +6,7 @@ import getProviderState from 'Utilities/State/getProviderState';
 import { removeItem, set, updateItem } from '../baseActions';
 
 const abortCurrentRequests = {};
+let lastSaveData = null;
 
 export function createCancelSaveProviderHandler(section) {
   return function(getState, payload, dispatch) {
@@ -27,27 +28,33 @@ function createSaveProviderHandler(section, url, options = {}, removeStale = fal
     } = payload;
 
     const saveData = Array.isArray(id) ? id.map((x) => getProviderState({ id: x, ...otherPayload }, getState, section)) : getProviderState({ id, ...otherPayload }, getState, section);
+    const requestUrl = id ? `${url}/${id}` : url;
+    const params = { ...queryParams };
+
+    // If the user is re-saving the same provider without changes
+    // force it to be saved. Only applies to editing existing providers.
+
+    if (id && _.isEqual(saveData, lastSaveData)) {
+      params.forceSave = true;
+    }
+
+    lastSaveData = saveData;
 
     const ajaxOptions = {
-      url: `${url}?${$.param(queryParams, true)}`,
-      method: 'POST',
+      url: `${requestUrl}?${$.param(params, true)}`,
+      method: id ? 'PUT' : 'POST',
       contentType: 'application/json',
       dataType: 'json',
       data: JSON.stringify(saveData)
     };
 
-    if (id) {
-      ajaxOptions.method = 'PUT';
-      if (!Array.isArray(id)) {
-        ajaxOptions.url = `${url}/${id}?${$.param(queryParams, true)}`;
-      }
-    }
-
     const { request, abortRequest } = createAjaxRequest(ajaxOptions);
 
     abortCurrentRequests[section] = abortRequest;
 
     request.done((data) => {
+      lastSaveData = null;
+      
       if (!Array.isArray(data)) {
         data = [data];
       }

src/Readarr.Api.V1/ProviderControllerBase.cs

@@ -7,6 +7,7 @@ using NzbDrone.Common.Serializer;
 using NzbDrone.Core.ThingiProvider;
 using NzbDrone.Core.Validation;
 using NzbDrone.Http.REST.Attributes;
+using Readarr.Http.Extensions;
 using Readarr.Http.REST;
 
 namespace Readarr.Api.V1
@@ -78,8 +79,8 @@ namespace Readarr.Api.V1
             var providerDefinition = GetDefinition(providerResource, true, false, false);
             var forceSave = Request.GetBooleanQueryParameter("forceSave");
 
-            // Only test existing definitions if it was previously disabled
-            if (providerDefinition.Enable && !existingDefinition.Enable)
+            // Only test existing definitions if it is enabled and forceSave isn't set.
+            if (providerDefinition.Enable && !forceSave)
             {
                 Test(providerDefinition, false);
             }
@@ -113,7 +114,7 @@ namespace Readarr.Api.V1
         {
             var defaultDefinitions = _providerFactory.GetDefaultDefinitions().OrderBy(p => p.ImplementationName).ToList();
 
-            var result = new List<TProviderResource>(defaultDefinitions.Count());
+            var result = new List<TProviderResource>(defaultDefinitions.Count);
 
             foreach (var providerDefinition in defaultDefinitions)
             {