Implemented local setting persistence and fixed main page search bug.

src/MultiShop/Client/App.razor.cs

@@ -1,11 +1,13 @@
 using System.Collections.Generic;
 using System.Net.Http;
 using System.Net.Http.Json;
+using System.Text.Json;
 using System.Threading.Tasks;
+using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Components.Authorization;
 using Microsoft.Extensions.Logging;
+using Microsoft.JSInterop;
 using MultiShop.Client.Module;
-using MultiShop.Client.Shared;
 using MultiShop.Shared.Models;
 using MultiShop.Shop.Framework;
 
@@ -13,19 +15,26 @@ namespace MultiShop.Client
 {
     public partial class App
     {
+        [Inject]
+        private IJSRuntime JS { get; set; }
+        [Inject]
+        private IHttpClientFactory HttpClientFactory {get; set;}
+        private IJSObjectReference localStorageManager;
         private ICollection<RuntimeDependencyManager.Dependency> dependencies = new List<RuntimeDependencyManager.Dependency>();
 
         protected override void OnInitialized()
         {
             base.OnInitialized();
-            dependencies.Add(new RuntimeDependencyManager.Dependency(typeof(IReadOnlyDictionary<string, IShop>), "Shops", DownloadShops));
+            dependencies.Add(new RuntimeDependencyManager.Dependency(typeof(IJSObjectReference), "JS Modules", (pHttp, http, auth, logger) => new ValueTask<object>(localStorageManager), "LocalStorageManager"));
+            dependencies.Add(new RuntimeDependencyManager.Dependency(typeof(IJSObjectReference), "JS Modules", async (pHttp, http, auth, logger) => await JS.InvokeAsync<IJSObjectReference>("import", "./js/Components/ComponentSupport.js"), "ComponentSupport"));
+            dependencies.Add(new RuntimeDependencyManager.Dependency(typeof(IReadOnlyDictionary<string, IShop>), "Shops", async (publicHttp, authenticatedHttp, auth, logger) => await (new ShopModuleLoader(publicHttp, logger)).GetShops()));
             dependencies.Add(new RuntimeDependencyManager.Dependency(typeof(ApplicationProfile), "Application Profile", DownloadApplicationProfile));
         }
 
-        private async ValueTask<object> DownloadShops(HttpClient publicHttp, HttpClient http, AuthenticationState authState, ILogger logger)
+        protected override async Task OnInitializedAsync()
         {
-            ShopModuleLoader loader = new ShopModuleLoader(publicHttp, logger);
+            await base.OnInitializedAsync();
-            return await loader.GetShops();
+            localStorageManager = await JS.InvokeAsync<IJSObjectReference>("import", "./js/LocalStorageManager.js");
         }
 
         private async ValueTask<object> DownloadApplicationProfile(HttpClient publicHttp, HttpClient http, AuthenticationState authState, ILogger logger)
@@ -39,7 +48,10 @@ namespace MultiShop.Client
                     return await response.Content.ReadFromJsonAsync<ApplicationProfile>();
                 }
             }
+            ApplicationProfile profile = await localStorageManager.InvokeAsync<ApplicationProfile>("retrieve", "ApplicationProfile");
+            if (profile != null) return profile;
             return new ApplicationProfile();
         }
+
     }
 }

src/MultiShop/Client/Pages/Configuration.razor.cs

@@ -6,6 +6,7 @@ using System.Threading.Tasks;
 using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Components.Authorization;
 using Microsoft.Extensions.Logging;
+using Microsoft.JSInterop;
 using MultiShop.Client.Services;
 using MultiShop.Shared.Models;
 
@@ -70,6 +71,7 @@ namespace MultiShop.Client.Pages
                 Logger.LogDebug($"User is authenticated. Attempting to save configuration to server.");
                 await Http.PutAsJsonAsync("Profile/Application", ApplicationProfile);
             }
+            await RuntimeDependencyManager.Get<IJSObjectReference>("LocalStorageManager").InvokeVoidAsync("save", "ApplicationProfile", ApplicationProfile);
         }
     }
 }

src/MultiShop/Client/Pages/Search.razor.cs

@@ -6,6 +6,7 @@ using System.Threading.Tasks;
 using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Components.Authorization;
 using Microsoft.Extensions.Logging;
+using Microsoft.JSInterop;
 using MultiShop.Client.Extensions;
 using MultiShop.Client.Listing;
 using MultiShop.Client.Services;
@@ -17,9 +18,6 @@ namespace MultiShop.Client.Pages
 {
     public partial class Search : IAsyncDisposable
     {
-        [Inject]
-        private LayoutStateChangeNotifier LayoutStateChangeNotifier { get; set; }
-
         [Inject]
         private ILogger<Search> Logger { get; set; }
 
@@ -53,7 +51,6 @@ namespace MultiShop.Client.Pages
         protected override void OnInitialized()
         {
             base.OnInitialized();
-            LayoutStateChangeNotifier.Notify += UpdateState;
             Shops = RuntimeDependencyManager.Get<IReadOnlyDictionary<string, IShop>>();
         }
 
@@ -71,36 +68,24 @@ namespace MultiShop.Client.Pages
                 {
                     activeSearchProfile = await searchProfileResponse.Content.ReadFromJsonAsync<SearchProfile>();
                 }
-                else
-                {
-                    Logger.LogWarning("Could not load search profile from server. Using default.");
-                    activeSearchProfile = new SearchProfile();
-                }
 
                 HttpResponseMessage resultsProfileResponse = await Http.GetAsync("Profile/Results");
                 if (resultsProfileResponse.IsSuccessStatusCode)
                 {
                     activeResultsProfile = await resultsProfileResponse.Content.ReadFromJsonAsync<ResultsProfile>();
                 }
-                else
-                {
-                    Logger.LogWarning("Could not load results profile from server. Using default.");
-                    activeResultsProfile = new ResultsProfile();
-                }
             }
-            else
+            IJSObjectReference localStorageManager = RuntimeDependencyManager.Get<IJSObjectReference>("LocalStorageManager");
-            {
+            if (activeSearchProfile == null) activeSearchProfile = await localStorageManager.InvokeAsync<SearchProfile>("retrieve", "SearchProfile");
-                activeSearchProfile = new SearchProfile();
+            if (activeResultsProfile == null) activeResultsProfile = await localStorageManager.InvokeAsync<ResultsProfile>("retrieve", "ResultsProfile");
-                activeResultsProfile = new ResultsProfile();
-            }
-            activeSearchProfile.ShopStates.TotalShops = Shops.Count;
-        }
 
-        protected override async Task OnParametersSetAsync()
+            if (activeSearchProfile == null) activeSearchProfile = new SearchProfile();
-        {
+            if (activeResultsProfile == null) activeResultsProfile = new ResultsProfile();
-            await base.OnParametersSetAsync();
+            activeSearchProfile.ShopStates.TotalShops = Shops.Count;
-            if (!string.IsNullOrEmpty(Query))
+
+            if (Query != null)
             {
+                searchBar.Searching = true;
                 await PerformSearch(Query);
             }
         }
@@ -111,9 +96,6 @@ namespace MultiShop.Client.Pages
             if (firstRender)
             {
                 searchBar.Query = Query;
-                searchBar.Searching = true;
-                await PerformSearch(Query);
-                searchBar.Searching = false;
             }
         }
 
@@ -121,6 +103,7 @@ namespace MultiShop.Client.Pages
         {
             if (string.IsNullOrWhiteSpace(query)) return;
             if (status.Searching) return;
+            searchBar.Searching = true;
             SearchProfile searchProfile = activeSearchProfile.DeepCopy();
             status.Searching = true;
             Logger.LogDebug($"Received search request for \"{query}\".");
@@ -187,6 +170,7 @@ namespace MultiShop.Client.Pages
             }
             status.Searching = false;
             status.Searched = true;
+            searchBar.Searching = false;
 
             int tagsAdded = 0;
             foreach (ResultsProfile.Category c in greatest.Keys)
@@ -272,12 +256,6 @@ namespace MultiShop.Client.Pages
             StateHasChanged();
         }
 
-        private async Task UpdateState() {
-            await InvokeAsync(() => {
-                StateHasChanged();
-            });
-        }
-
         public async ValueTask DisposeAsync()
         {
             AuthenticationState authState = await AuthenticationStateTask;
@@ -286,7 +264,9 @@ namespace MultiShop.Client.Pages
                 await Http.PutAsJsonAsync("Profile/Search", activeSearchProfile);
                 await Http.PutAsJsonAsync("Profile/Results", activeResultsProfile);
             }
-            LayoutStateChangeNotifier.Notify -= UpdateState;
+            IJSObjectReference localStorageManager = RuntimeDependencyManager.Get<IJSObjectReference>("LocalStorageManager");
+            await localStorageManager.InvokeVoidAsync("save", "SearchProfile", activeSearchProfile);
+            await localStorageManager.InvokeVoidAsync("save", "ResultsProfile", activeResultsProfile);
         }
 
         public class Status

src/MultiShop/Client/wwwroot/js/LocalStorageManager.js

@@ -0,0 +1,38 @@
+const APP_STORAGE_KEY = "MultiShop"
+
+export function save(key, value) {
+    try {
+        localStorage.setItem(APP_STORAGE_KEY + "/" + key, JSON.stringify(value));
+    } catch (error) {
+        console.warn("Failed to save value with key: " + key);
+        return false;
+    }
+    return true;
+}
+
+export function retrieve(key) {
+    let value = localStorage.getItem(APP_STORAGE_KEY + "/" + key);
+    if (value == null) return null;
+    try {
+        return JSON.parse(value);
+    } catch (error) {
+        if (error instanceof SyntaxError) {
+            console.warn("Unable to parse value for key \"" + key + "\". Removing.");
+            remove(key);
+            return null;
+        }
+    }
+}
+
+export function remove(key) {
+    localStorage.removeItem(APP_STORAGE_KEY + "/" + key);
+}
+
+export function clear() {
+    for (let i = 0; i < localStorage.length; i++) {
+        let name = localStorage.key(i);
+        if (name.startsWith(APP_STORAGE_KEY + "/")) {
+            localStorage.removeItem(name);
+        }
+    }
+}