Aggiungi gestione dei film preferiti e integrazione con Blazored.LocalStorage

Components/Pages/MovieDetail.razor

@@ -2,7 +2,26 @@
 
 <PageTitle>Movie Details</PageTitle>
 
-<div style="display: grid; grid-template-columns: 1fr 2fr; grid-template-rows: auto auto; gap: 20px; max-width: 800px; margin-right: auto;">
+<style>
+    .my-grid {
+        display: grid;
+        grid-template-columns: 1fr 2fr;
+        grid-template-rows: auto auto;
+        gap: 20px;
+        max-width: 800px;
+        margin-right: auto;
+    }
+    .favorite {
+        background-color: gold;
+        color: black;
+    }
+    .not-favorite {
+        background-color: gray;
+        color: white;
+    }
+</style>
+
+<div class="my-grid">
     @if (movie is not null)
     {
         <h1>@movie.Title</h1>
@@ -11,7 +30,14 @@
         <div class="details">
             <p>@movie.Runtime</p>
             <p>@movie.Plot</p>
-            <button>Favorite</button>
+            @if(ManageFavorite.IsFavorite(id))
+            {
+                <button class="btn-secondary favorite" @onclick="ToggleFavoriteMovie">Remove Favorite</button>
+            }
+            else
+            {
+                <button class="btn-secondary not-favorite" @onclick="ToggleFavoriteMovie">Add to Favorites</button>
+            }
         </div>
     }
     else
@@ -22,6 +48,7 @@
 
 
 @inject OmdbService OmdbService
+@inject ManageFavorite ManageFavorite
 
 @code {
     [Parameter]
@@ -32,4 +59,18 @@
     {
         movie = await OmdbService.FetchMovieDetail(id);
     }
+
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if (firstRender)
+        {
+            await ManageFavorite.LoadFavorites();
+            StateHasChanged();
+        }
+    }
+
+    private async Task ToggleFavoriteMovie()
+    {
+        await ManageFavorite.ToggleFavoriteMovie(id);
+    }
 }