Add file upload popup dialog

Hcs.WebApp/Components/Dialogs/AddUser.razor

@@ -46,8 +46,8 @@
             </Helper>
         </RadzenFormField>
         <RadzenStack Orientation="Orientation.Horizontal" AlignItems="AlignItems.Center" JustifyContent="JustifyContent.End" Gap="0.5rem">
-            <RadzenButton ButtonType="ButtonType.Submit" Disabled="@inProgress" Text="Создать"></RadzenButton>
-            <RadzenButton Click="@DoClose" ButtonStyle="ButtonStyle.Light" Disabled="@inProgress" Text="Отмена"></RadzenButton>
+            <RadzenButton ButtonType="ButtonType.Submit" Disabled="@inProgress" Text="Создать" />
+            <RadzenButton Click="@DoClose" ButtonStyle="ButtonStyle.Light" Disabled="@inProgress" Text="Отмена" />
         </RadzenStack>
     </RadzenStack>
 </RadzenTemplateForm>

Hcs.WebApp/Components/Dialogs/StartParsing.razor

@@ -0,0 +1,80 @@
+@using Hcs.WebApp.Services
+
+@inject DialogService DialogService
+@inject FileToParseService FileToParseService
+
+<style>
+    #uploadWithDragAndDrop {
+        left: 0;
+        --rz-upload-button-bar-background-color: transparent;
+        --rz-upload-button-bar-padding: 0;
+    }
+
+        #uploadWithDragAndDrop .rz-fileupload-buttonbar .rz-fileupload-choose {
+            width: 100%;
+            text-align: center;
+            font-size: 16px;
+            padding: 75px 0;
+        }
+</style>
+
+<RadzenStack JustifyContent="JustifyContent.Center" Style="height: 100%;">
+    <RadzenAlert Visible="@hasError" AlertStyle="AlertStyle.Danger" Variant="Variant.Flat" Shade="Shade.Lighter" AllowClose="false">
+        @errorMessage
+    </RadzenAlert>
+    <RadzenUpload id="uploadWithDragAndDrop" @ref="upload" Url="upload-to-parse" Progress="@OnProgress" Complete="@OnCompleteAsync" ChooseText="Перетащите сюда или нажмите, чтобы выбрать файл" Auto="false" Multiple="false" Style="width: 100%;" />
+    <RadzenStack Orientation="Orientation.Horizontal" AlignItems="AlignItems.Center" JustifyContent="JustifyContent.End" Gap="0.5rem">
+        <RadzenButton Click="@Upload" Visible="@(state == UploadState.Idle)" Text="Отправить" />
+        <RadzenButton Click="@Close" Visible="@(state == UploadState.Idle)" ButtonStyle="ButtonStyle.Light" Text="Отмена" />
+    </RadzenStack>
+    <RadzenProgressBar Value="@progress" Visible="@(state != UploadState.Idle)" />
+    <RadzenButton Click="@Close" Visible="@(state == UploadState.Completed)" Text="Закрыть" />
+</RadzenStack>
+
+@code {
+    enum UploadState
+    {
+        Idle,
+        InProgress,
+        Completed
+    }
+
+    RadzenUpload upload;
+    UploadState state;
+    int progress;
+    bool hasError;
+    string errorMessage;
+
+    void Upload()
+    {
+        state = UploadState.InProgress;
+        hasError = false;
+
+        upload.Upload();
+    }
+
+    void Close()
+    {
+        DialogService.Close(true);
+    }
+
+    void OnProgress(UploadProgressArgs args)
+    {
+        progress = args.Progress;
+    }
+
+    async Task OnCompleteAsync(UploadCompleteEventArgs args)
+    {
+        try
+        {
+            // TODO
+        }
+        catch (Exception e)
+        {
+            hasError = true;
+            errorMessage = e.Message;
+        }
+
+        state = hasError ? UploadState.Idle : UploadState.Completed;
+    }
+}