added functionality to add tokenizer to LLM and embedding models

app/MindWork AI Studio/Dialogs/ProviderDialog.razor.cs

@@ -8,6 +8,7 @@ using AIStudio.Tools.Services;
 using AIStudio.Tools.Validation;
 
 using Microsoft.AspNetCore.Components;
+using Microsoft.AspNetCore.Components.Web;
 
 using Host = AIStudio.Provider.SelfHosted.Host;
 
@@ -83,6 +84,9 @@ public partial class ProviderDialog : MSGComponentBase, ISecretId
     
     [Parameter]
     public string AdditionalJsonApiParameters { get; set; } = string.Empty;
+
+    [Parameter]
+    public string DataTokenizerPath { get; set; } = string.Empty;
     
     [Inject]
     private RustService RustService { get; init; } = null!;
@@ -104,6 +108,11 @@ public partial class ProviderDialog : MSGComponentBase, ISecretId
     private string dataAPIKeyStorageIssue = string.Empty;
     private string dataEditingPreviousInstanceName = string.Empty;
     private string dataLoadingModelsIssue = string.Empty;
+    private string dataFilePath = string.Empty;
+    private string dataCustomTokenizerValidationIssue = string.Empty;
+    private Task dataTokenizerValidationTask = Task.CompletedTask;
+    private bool dataStoreWasAttempted;
+    private int dataTokenizerValidationRevision;
     private bool showExpertSettings;
     
     // We get the form reference from Blazor code to validate it manually:
@@ -123,6 +132,7 @@ public partial class ProviderDialog : MSGComponentBase, ISecretId
             GetUsedInstanceNames = () => this.UsedInstanceNames,
             GetHost = () => this.DataHost,
             IsModelProvidedManually = () => this.DataLLMProvider.IsLLMModelProvidedManually(),
+            GetCustomTokenizerValidationIssue = () => this.dataCustomTokenizerValidationIssue,
         };
     }
 
@@ -158,6 +168,7 @@ public partial class ProviderDialog : MSGComponentBase, ISecretId
             Host = this.DataHost,
             HFInferenceProvider = this.HFInferenceProviderId,
             AdditionalJsonApiParameters = this.AdditionalJsonApiParameters,
+            TokenizerPath = this.dataFilePath,
         };
     }
 
@@ -182,6 +193,7 @@ public partial class ProviderDialog : MSGComponentBase, ISecretId
         if(this.IsEditing)
         {
             this.dataEditingPreviousInstanceName = this.DataInstanceName.ToLowerInvariant();
+            this.dataFilePath = this.DataTokenizerPath;
             
             // When using Fireworks or Hugging Face, we must copy the model name:
             if (this.DataLLMProvider.IsLLMModelProvidedManually())
@@ -237,6 +249,8 @@ public partial class ProviderDialog : MSGComponentBase, ISecretId
 
     private async Task Store()
     {
+        this.dataStoreWasAttempted = true;
+        await this.dataTokenizerValidationTask;
         await this.form.Validate();
         if (!string.IsNullOrWhiteSpace(this.dataAPIKeyStorageIssue))
             this.dataAPIKeyStorageIssue = string.Empty;
@@ -253,6 +267,15 @@ public partial class ProviderDialog : MSGComponentBase, ISecretId
         // When the data is not valid, we don't store it:
         if (!this.dataIsValid)
             return;
+
+        var tokenizerResponse = await this.RustService.StoreTokenizer(this.DataInstanceName, this.dataEditingPreviousInstanceName, this.dataFilePath);
+        if (!tokenizerResponse.Success)
+        {
+            this.dataCustomTokenizerValidationIssue = tokenizerResponse.Message;
+            await this.form.Validate();
+            return;
+        }
+        this.dataFilePath = tokenizerResponse.Message;
         
         // Use the data model to store the provider.
         // We just return this data to the parent component:
@@ -292,6 +315,58 @@ public partial class ProviderDialog : MSGComponentBase, ISecretId
         }
     }
 
+    private Task ClearPathTokenizer(MouseEventArgs _)
+    {
+        return this.OnDataFilePathChanged(string.Empty);
+    }
+
+    private async Task OnDataFilePathChanged(string filePath)
+    {
+        this.dataFilePath = filePath;
+        var validationRevision = ++this.dataTokenizerValidationRevision;
+        this.dataTokenizerValidationTask = this.ValidateCustomTokenizer(filePath, validationRevision);
+        await this.dataTokenizerValidationTask;
+
+        if (validationRevision != this.dataTokenizerValidationRevision)
+            return;
+
+        if (this.dataStoreWasAttempted)
+            await this.form.Validate();
+        else
+            this.form.ResetValidation();
+    }
+
+    private async Task ValidateCustomTokenizer(string filePath, int validationRevision)
+    {
+        if (string.IsNullOrWhiteSpace(filePath))
+        {
+            if (validationRevision == this.dataTokenizerValidationRevision)
+                this.dataCustomTokenizerValidationIssue = string.Empty;
+
+            return;
+        }
+
+        try
+        {
+            var response = await this.RustService.ValidateTokenizer(filePath);
+            if (validationRevision != this.dataTokenizerValidationRevision)
+                return;
+
+            if (response.Success)
+                this.dataCustomTokenizerValidationIssue = string.Empty;
+            else
+                this.dataCustomTokenizerValidationIssue = T("Invalid tokenizer: ") + response.Message;
+        }
+        catch (Exception e)
+        {
+            if (validationRevision != this.dataTokenizerValidationRevision)
+                return;
+
+            this.Logger.LogError(e, "Failed to validate custom tokenizer.");
+            this.dataCustomTokenizerValidationIssue = T("Failed to validate the selected tokenizer. Please try again.");
+        }
+    }
+
     private void OnHostChanged(Host selectedHost)
     {
         // When the host changes, reset the model selection state: