Added Fireworks as provider

app/MindWork AI Studio/Provider/Fireworks/ChatRequest.cs

@@ -0,0 +1,13 @@
+namespace AIStudio.Provider.Fireworks;
+
+/// <summary>
+/// The Fireworks chat request model.
+/// </summary>
+/// <param name="Model">Which model to use for chat completion.</param>
+/// <param name="Messages">The chat messages.</param>
+/// <param name="Stream">Whether to stream the chat completion.</param>
+public readonly record struct ChatRequest(
+    string Model,
+    IList<Message> Messages,
+    bool Stream
+);

app/MindWork AI Studio/Provider/Fireworks/Message.cs

@@ -0,0 +1,8 @@
+namespace AIStudio.Provider.Fireworks;
+
+/// <summary>
+/// Chat message model.
+/// </summary>
+/// <param name="Content">The text content of the message.</param>
+/// <param name="Role">The role of the message.</param>
+public readonly record struct Message(string Content, string Role);

app/MindWork AI Studio/Provider/Fireworks/ProviderFireworks.cs

@@ -0,0 +1,160 @@
+using System.Net.Http.Headers;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Text.Json;
+
+using AIStudio.Chat;
+using AIStudio.Settings;
+
+namespace AIStudio.Provider.Fireworks;
+
+public class ProviderFireworks() : BaseProvider("https://api.fireworks.ai/inference/v1/"), IProvider
+{
+    private static readonly JsonSerializerOptions JSON_SERIALIZER_OPTIONS = new()
+    {
+        PropertyNamingPolicy = JsonNamingPolicy.SnakeCaseLower,
+    };
+    
+    #region Implementation of IProvider
+
+    /// <inheritdoc />
+    public string Id => "Fireworks.ai";
+
+    /// <inheritdoc />
+    public string InstanceName { get; set; } = "Fireworks.ai";
+
+    /// <inheritdoc />
+    public async IAsyncEnumerable<string> StreamChatCompletion(IJSRuntime jsRuntime, SettingsManager settings, Model chatModel, ChatThread chatThread, [EnumeratorCancellation] CancellationToken token = default)
+    {
+        // Get the API key:
+        var requestedSecret = await settings.GetAPIKey(jsRuntime, this);
+        if(!requestedSecret.Success)
+            yield break;
+
+        // Prepare the system prompt:
+        var systemPrompt = new Message
+        {
+            Role = "system",
+            Content = chatThread.SystemPrompt,
+        };
+        
+        // Prepare the Fireworks HTTP chat request:
+        var fireworksChatRequest = JsonSerializer.Serialize(new ChatRequest
+        {
+            Model = chatModel.Id,
+            
+            // Build the messages:
+            // - First of all the system prompt
+            // - Then none-empty user and AI messages
+            Messages = [systemPrompt, ..chatThread.Blocks.Where(n => n.ContentType is ContentType.TEXT && !string.IsNullOrWhiteSpace((n.Content as ContentText)?.Text)).Select(n => new Message
+            {
+                Role = n.Role switch
+                {
+                    ChatRole.USER => "user",
+                    ChatRole.AI => "assistant",
+                    ChatRole.SYSTEM => "system",
+
+                    _ => "user",
+                },
+
+                Content = n.Content switch
+                {
+                    ContentText text => text.Text,
+                    _ => string.Empty,
+                }
+            }).ToList()],
+            
+            // Right now, we only support streaming completions:
+            Stream = true,
+        }, JSON_SERIALIZER_OPTIONS);
+
+        // Build the HTTP post request:
+        var request = new HttpRequestMessage(HttpMethod.Post, "chat/completions");
+        
+        // Set the authorization header:
+        request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", requestedSecret.Secret);
+        
+        // Set the content:
+        request.Content = new StringContent(fireworksChatRequest, Encoding.UTF8, "application/json");
+        
+        // Send the request with the ResponseHeadersRead option.
+        // This allows us to read the stream as soon as the headers are received.
+        // This is important because we want to stream the responses.
+        var response = await this.httpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, token);
+        
+        // Open the response stream:
+        var fireworksStream = await response.Content.ReadAsStreamAsync(token);
+        
+        // Add a stream reader to read the stream, line by line:
+        var streamReader = new StreamReader(fireworksStream);
+        
+        // Read the stream, line by line:
+        while(!streamReader.EndOfStream)
+        {
+            // Check if the token is canceled:
+            if(token.IsCancellationRequested)
+                yield break;
+            
+            // Read the next line:
+            var line = await streamReader.ReadLineAsync(token);
+            
+            // Skip empty lines:
+            if(string.IsNullOrWhiteSpace(line))
+                continue;
+            
+            // Skip lines that do not start with "data: ". Regard
+            // to the specification, we only want to read the data lines:
+            if(!line.StartsWith("data: ", StringComparison.InvariantCulture))
+                continue;
+
+            // Check if the line is the end of the stream:
+            if (line.StartsWith("data: [DONE]", StringComparison.InvariantCulture))
+                yield break;
+
+            ResponseStreamLine fireworksResponse;
+            try
+            {
+                // We know that the line starts with "data: ". Hence, we can
+                // skip the first 6 characters to get the JSON data after that.
+                var jsonData = line[6..];
+                
+                // Deserialize the JSON data:
+                fireworksResponse = JsonSerializer.Deserialize<ResponseStreamLine>(jsonData, JSON_SERIALIZER_OPTIONS);
+            }
+            catch
+            {
+                // Skip invalid JSON data:
+                continue;
+            }    
+            
+            // Skip empty responses:
+            if(fireworksResponse == default || fireworksResponse.Choices.Count == 0)
+                continue;
+            
+            // Yield the response:
+            yield return fireworksResponse.Choices[0].Delta.Content;
+        }
+    }
+
+    #pragma warning disable CS1998 // Async method lacks 'await' operators and will run synchronously
+    /// <inheritdoc />
+    public async IAsyncEnumerable<ImageURL> StreamImageCompletion(IJSRuntime jsRuntime, SettingsManager settings, Model imageModel, string promptPositive, string promptNegative = FilterOperator.String.Empty, ImageURL referenceImageURL = default, [EnumeratorCancellation] CancellationToken token = default)
+    {
+        yield break;
+    }
+    #pragma warning restore CS1998 // Async method lacks 'await' operators and will run synchronously
+
+    /// <inheritdoc />
+    public Task<IEnumerable<Model>> GetTextModels(IJSRuntime jsRuntime, SettingsManager settings, string? apiKeyProvisional = null, CancellationToken token = default)
+    {
+        return Task.FromResult(Enumerable.Empty<Model>());
+    }
+
+    /// <inheritdoc />
+    public Task<IEnumerable<Model>> GetImageModels(IJSRuntime jsRuntime, SettingsManager settings, string? apiKeyProvisional = null, CancellationToken token = default)
+    {
+        return Task.FromResult(Enumerable.Empty<Model>());
+    }
+
+    #endregion
+}

app/MindWork AI Studio/Provider/Fireworks/ResponseStreamLine.cs

@@ -0,0 +1,24 @@
+namespace AIStudio.Provider.Fireworks;
+
+/// <summary>
+/// Data model for a line in the response stream, for streaming completions.
+/// </summary>
+/// <param name="Id">The id of the response.</param>
+/// <param name="Object">The object describing the response.</param>
+/// <param name="Created">The timestamp of the response.</param>
+/// <param name="Model">The model used for the response.</param>
+/// <param name="Choices">The choices made by the AI.</param>
+public readonly record struct ResponseStreamLine(string Id, string Object, uint Created, string Model, IList<Choice> Choices);
+
+/// <summary>
+/// Data model for a choice made by the AI.
+/// </summary>
+/// <param name="Index">The index of the choice.</param>
+/// <param name="Delta">The delta text of the choice.</param>
+public readonly record struct Choice(int Index, Delta Delta);
+
+/// <summary>
+/// The delta text of a choice.
+/// </summary>
+/// <param name="Content">The content of the delta text.</param>
+public readonly record struct Delta(string Content);

app/MindWork AI Studio/Provider/Providers.cs

@@ -1,4 +1,5 @@
 using AIStudio.Provider.Anthropic;
+using AIStudio.Provider.Fireworks;
 using AIStudio.Provider.Mistral;
 using AIStudio.Provider.OpenAI;
 using AIStudio.Provider.SelfHosted;
@@ -10,13 +11,15 @@ namespace AIStudio.Provider;
 /// </summary>
 public enum Providers
 {
-    NONE,
+    NONE = 0,
     
-    OPEN_AI,
-    ANTHROPIC,
-    MISTRAL,
+    OPEN_AI = 1,
+    ANTHROPIC = 2,
+    MISTRAL = 3,
     
-    SELF_HOSTED,
+    FIREWORKS = 5,
+    
+    SELF_HOSTED = 4,
 }
 
 /// <summary>
@@ -37,6 +40,8 @@ public static class ExtensionsProvider
         Providers.ANTHROPIC => "Anthropic",
         Providers.MISTRAL => "Mistral",
         
+        Providers.FIREWORKS => "Fireworks.ai",
+        
         Providers.SELF_HOSTED => "Self-hosted",
         
         _ => "Unknown",
@@ -57,6 +62,8 @@ public static class ExtensionsProvider
                 Providers.ANTHROPIC => new ProviderAnthropic { InstanceName = providerSettings.InstanceName },
                 Providers.MISTRAL => new ProviderMistral { InstanceName = providerSettings.InstanceName },
                 
+                Providers.FIREWORKS => new ProviderFireworks { InstanceName = providerSettings.InstanceName },
+                
                 Providers.SELF_HOSTED => new ProviderSelfHosted(providerSettings) { InstanceName = providerSettings.InstanceName },
                 
                 _ => new NoProvider(),

app/MindWork AI Studio/wwwroot/changelog/v0.8.3.md

@@ -1,5 +1,6 @@
 # v0.8.3 (WIP)
-- Migrated UI framework from MudBlazor v6.x.x to v7.x.x
 - Added an option to configure the behavior of the navigation bar in the settings
+- Added support for Fireworks.ai as provider, where you can use e.g., the llama 3.1 405b model
 - Improved the handling of self-hosted provider hostnames
 - Improved the configured provider table: long model names are now truncated
+- Migrated UI framework from MudBlazor v6.x.x to v7.x.x