From 0e9f8b612ce2189bba3f0446b44eafc4be9a9c6c Mon Sep 17 00:00:00 2001
From: Pat Hartl <pat@pathar.tl>
Date: Wed, 2 Aug 2023 18:54:57 -0500
Subject: [PATCH] Disable browse button if archive file is missing

---
 LANCommander/Components/InputArchiveFile.razor | 11 ++++++++++-
 LANCommander/Services/ArchiveService.cs        |  9 +++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/LANCommander/Components/InputArchiveFile.razor b/LANCommander/Components/InputArchiveFile.razor
index b7775fe..8e19a4e 100644
--- a/LANCommander/Components/InputArchiveFile.razor
+++ b/LANCommander/Components/InputArchiveFile.razor
@@ -1,6 +1,7 @@
 @using LANCommander.Models;
 @using System.IO.Compression;
 @inject ModalService ModalService
+@inject ArchiveService ArchiveService
 
 <Space Style="display: flex">
     <SpaceItem Style="flex-grow: 1">
@@ -8,7 +9,7 @@
     </SpaceItem>
     @if (ArchiveId != Guid.Empty) {
         <SpaceItem>
-            <Button OnClick="() => BrowseForFile()" Type="@ButtonType.Primary" Icon="@IconType.Outline.FolderOpen" />
+            <Button OnClick="() => BrowseForFile()" Type="@ButtonType.Primary" Icon="@IconType.Outline.FolderOpen" Disabled="!ArchiveExists" />
         </SpaceItem>
     }
 </Space>
@@ -20,6 +21,14 @@
     [Parameter] public string ArchiveBrowserTitle { get; set; } = "Choose File";
     [Parameter] public bool AllowDirectories { get; set; } = false;
 
+    bool ArchiveExists { get; set; } = false;
+
+    protected override async Task OnInitializedAsync()
+    {
+        if (ArchiveId != Guid.Empty)
+            ArchiveExists = await ArchiveService.Exists(ArchiveId);
+    }
+
     private async void BrowseForFile()
     {
         var modalOptions = new ModalOptions()
diff --git a/LANCommander/Services/ArchiveService.cs b/LANCommander/Services/ArchiveService.cs
index 998266a..182c2a7 100644
--- a/LANCommander/Services/ArchiveService.cs
+++ b/LANCommander/Services/ArchiveService.cs
@@ -88,6 +88,15 @@ namespace LANCommander.Services
             }
         }
 
+        public async Task<bool> Exists(Guid archiveId)
+        {
+            var archive = await Get(archiveId);
+
+            var path = GetArchiveFileLocation(archive);
+
+            return File.Exists(path);
+        }
+
         public async Task<IEnumerable<ZipArchiveEntry>> GetContents(Guid archiveId)
         {
             var archive = await Get(archiveId);