add image generation

src/Infrastructure/BotSharp.Abstraction/Agents/Enums/AgentField.cs

@@ -16,7 +16,8 @@ public enum AgentField
     Template,
     Response,
     Sample,
-    LlmConfig
+    LlmConfig,
+    Tool
 }
 
 public enum AgentTaskField

src/Infrastructure/BotSharp.Abstraction/Agents/Enums/AgentTool.cs

@@ -0,0 +1,8 @@
+namespace BotSharp.Abstraction.Agents.Enums;
+
+public class AgentTool
+{
+    public const string FileAnalyzer = "file-analyzer";
+    public const string ImageGenerator = "image-generator";
+    public const string HttpHandler = "http-handler";
+}

src/Infrastructure/BotSharp.Abstraction/Agents/IAgentService.cs

@@ -51,4 +51,6 @@ public interface IAgentService
     List<Agent> GetAgentsByUser(string userId);
 
     PluginDef GetPlugin(string agentId);
+
+    IEnumerable<string> GetAgentTools();
 }

src/Infrastructure/BotSharp.Abstraction/Agents/Models/Agent.cs

@@ -90,6 +90,12 @@ public class Agent
     public List<string> Profiles { get; set; }
         = new List<string>();
 
+    /// <summary>
+    /// Useful tools
+    /// </summary>
+    public List<string> Tools { get; set; }
+        = new List<string>();
+
     /// <summary>
     /// Inherit from agent
     /// </summary>
@@ -121,6 +127,7 @@ public static Agent Clone(Agent agent)
             Functions = agent.Functions,
             Responses = agent.Responses,
             Samples = agent.Samples,
+            Tools = agent.Tools,
             Knowledges = agent.Knowledges,
             IsPublic = agent.IsPublic,
             Disabled = agent.Disabled,
@@ -162,6 +169,12 @@ public Agent SetSamples(List<string> samples)
         return this;
     }
 
+    public Agent SetTools(List<string> tools)
+    {
+        Tools = tools ?? new List<string>();
+        return this;
+    }
+
     public Agent SetResponses(List<AgentResponse> responses)
     {
         Responses = responses ?? new List<AgentResponse>(); ;

src/Infrastructure/BotSharp.Abstraction/Conversations/IConversationService.cs

@@ -58,4 +58,6 @@ Task<bool> SendMessage(string agentId,
     Task<string> GetConversationSummary(IEnumerable<string> conversationId);
 
     Task<Conversation> GetConversationRecordOrCreateNew(string agentId);
+
+    bool IsConversationMode();
 }

src/Infrastructure/BotSharp.Abstraction/MLTasks/IImageGeneration.cs

@@ -0,0 +1,17 @@
+namespace BotSharp.Abstraction.MLTasks;
+
+public interface IImageGeneration
+{
+    /// <summary>
+    /// The LLM provider like Microsoft Azure, OpenAI, ClaudAI
+    /// </summary>
+    string Provider { get; }
+
+    /// <summary>
+    /// Set model name, one provider can consume different model or version(s)
+    /// </summary>
+    /// <param name="model">deployment name</param>
+    void SetModelName(string model);
+
+    Task<RoleDialogModel> GetImageGeneration(Agent agent, List<RoleDialogModel> conversations);
+}

src/Infrastructure/BotSharp.Abstraction/MLTasks/ILlmProviderService.cs

@@ -6,6 +6,6 @@ public interface ILlmProviderService
 {
     LlmModelSetting GetSetting(string provider, string model);
     List<string> GetProviders();
-    LlmModelSetting GetProviderModel(string provider, string id, bool? multiModal = null);
+    LlmModelSetting GetProviderModel(string provider, string id, bool? multiModal = null, bool imageGenerate = false);
     List<LlmModelSetting> GetProviderModels(string provider);
 }

src/Infrastructure/BotSharp.Abstraction/MLTasks/Settings/LlmModelSetting.cs

@@ -32,6 +32,11 @@ public class LlmModelSetting
     /// </summary>
     public bool MultiModal { get; set; }
 
+    /// <summary>
+    /// If true, allow generating images
+    /// </summary>
+    public bool ImageGeneration { get; set; }
+
     /// <summary>
     /// Prompt cost per 1K token
     /// </summary>
@@ -51,5 +56,6 @@ public override string ToString()
 public enum LlmModelType
 {
     Text = 1,
-    Chat = 2
+    Chat = 2,
+    Image = 3
 }

src/Infrastructure/BotSharp.Core/Agents/Services/AgentService.LoadAgent.cs

@@ -7,7 +7,7 @@ public partial class AgentService
     [MemoryCache(10 * 60, perInstanceCache: true)]
     public async Task<Agent> LoadAgent(string id)
     {
-        if (string.IsNullOrEmpty(id) || id == Guid.Empty.ToString())
+        if (string.IsNullOrEmpty(id))
         {
             return null;
         }
@@ -28,7 +28,7 @@ public async Task<Agent> LoadAgent(string id)
         var agent = await GetAgent(id);
         if (agent == null)
         {
-            throw new Exception($"Can't load agent by id: {id}");
+            return null;
         }
 
         if (agent.InheritAgentId != null)

src/Infrastructure/BotSharp.Core/Agents/Services/AgentService.UpdateAgent.cs

@@ -1,8 +1,6 @@
-using BotSharp.Abstraction.Agents;
 using BotSharp.Abstraction.Repositories.Enums;
 using BotSharp.Abstraction.Routing.Models;
 using BotSharp.Abstraction.Users.Enums;
-using Microsoft.EntityFrameworkCore.Metadata;
 using System.IO;
 
 namespace BotSharp.Core.Agents.Services;
@@ -34,6 +32,7 @@ public async Task UpdateAgent(Agent agent, AgentField updateField)
         record.Templates = agent.Templates ?? new List<AgentTemplate>();
         record.Responses = agent.Responses ?? new List<AgentResponse>();
         record.Samples = agent.Samples ?? new List<string>();
+        record.Tools = agent.Tools ?? new List<string>();
         if (agent.LlmConfig != null && !agent.LlmConfig.IsInherit)
         {
             record.LlmConfig = agent.LlmConfig;
@@ -95,6 +94,7 @@ public async Task<string> UpdateAgentFromFile(string id)
                        .SetFunctions(foundAgent.Functions)
                        .SetResponses(foundAgent.Responses)
                        .SetSamples(foundAgent.Samples)
+                       .SetTools(foundAgent.Tools)
                        .SetLlmConfig(foundAgent.LlmConfig);
 
             _db.UpdateAgent(clonedAgent, AgentField.All);

src/Infrastructure/BotSharp.Core/Agents/Services/AgentService.cs

@@ -1,4 +1,5 @@
 using System.IO;
+using System.Reflection;
 
 namespace BotSharp.Core.Agents.Services;
 
@@ -53,4 +54,14 @@ public List<Agent> GetAgentsByUser(string userId)
         var agents = _db.GetAgentsByUser(userId);
         return agents;
     }
+
+    public IEnumerable<string> GetAgentTools()
+    {
+        var tools = typeof(AgentTool).GetFields(BindingFlags.Public | BindingFlags.Static)
+                                     .Where(f => f.IsLiteral && f.FieldType == typeof(string))
+                                     .Select(x => x.GetRawConstantValue()?.ToString())
+                                     .ToList();
+
+        return tools;
+    }
 }

src/Infrastructure/BotSharp.Core/BotSharp.Core.csproj

@@ -46,6 +46,10 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <None Remove="data\agents\00000000-0000-0000-0000-000000000000\agent.json" />
+    <None Remove="data\agents\00000000-0000-0000-0000-000000000000\instruction.liquid" />
+    <None Remove="data\agents\00000000-0000-0000-0000-000000000000\functions.json" />
+    <None Remove="data\agents\00000000-0000-0000-0000-000000000000\templates\load_attachment_prompt.liquid" />
     <None Remove="data\agents\01dcc3e5-0af7-49e6-ad7a-a760bd12dc4b\agent.json" />
     <None Remove="data\agents\01dcc3e5-0af7-49e6-ad7a-a760bd12dc4b\functions.json" />
     <None Remove="data\agents\01dcc3e5-0af7-49e6-ad7a-a760bd12dc4b\instruction.liquid" />
@@ -146,6 +150,18 @@
     <Content Include="data\agents\01fcc3e5-9af7-49e6-ad7a-a760bd12dc4a\templates\conversation.summary.liquid">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
+    <Content Include="data\agents\00000000-0000-0000-0000-000000000000\agent.json">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+    <Content Include="data\agents\00000000-0000-0000-0000-000000000000\instruction.liquid">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+    <Content Include="data\agents\00000000-0000-0000-0000-000000000000\functions.json">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+    <Content Include="data\agents\00000000-0000-0000-0000-000000000000\templates\load_attachment_prompt.liquid">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
     <Content Include="data\plugins\config.json">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>

src/Infrastructure/BotSharp.Core/Conversations/Services/ConversationService.cs

@@ -161,4 +161,9 @@ public async Task<Conversation> GetConversationRecordOrCreateNew(string agentId)
 
         return converation;
     }
+
+    public bool IsConversationMode()
+    {
+        return !string.IsNullOrWhiteSpace(_conversationId);
+    }
 }

src/Infrastructure/BotSharp.Core/Files/Functions/LoadAttachmentFn.cs

@@ -10,9 +10,9 @@ public class LoadAttachmentFn : IFunctionCallback
 
     private readonly IServiceProvider _services;
     private readonly ILogger<LoadAttachmentFn> _logger;
-    private const string AIAssistant = "01fcc3e5-9af7-49e6-ad7a-a760bd12dc4a";
     private readonly IEnumerable<string> _imageTypes = new List<string> { "image", "images", "png", "jpg", "jpeg" };
     private readonly IEnumerable<string> _pdfTypes = new List<string> { "pdf" };
+    private static string TOOL_ASSISTANT = Guid.Empty.ToString();
 
     public LoadAttachmentFn(
         IServiceProvider services,
@@ -29,13 +29,13 @@ public async Task<bool> Execute(RoleDialogModel message)
         var agentService = _services.GetRequiredService<IAgentService>();
 
         var wholeDialogs = conv.GetDialogHistory();
-        var fileTypes = args?.FileTypes?.Split(",")?.ToList() ?? new List<string>();
+        var fileTypes = args?.FileTypes?.Split(",", StringSplitOptions.RemoveEmptyEntries)?.ToList() ?? new List<string>();
         var dialogs = await AssembleFiles(conv.ConversationId, wholeDialogs, fileTypes);
-        var agent = await agentService.LoadAgent(!string.IsNullOrEmpty(message.CurrentAgentId) ? message.CurrentAgentId : AIAssistant);
+        var agent = await agentService.LoadAgent(TOOL_ASSISTANT);
         var fileAgent = new Agent
         {
-            Id = agent.Id,
-            Name = agent.Name,
+            Id = agent?.Id ?? Guid.Empty.ToString(),
+            Name = agent?.Name ?? "Unkown",
             Instruction = !string.IsNullOrWhiteSpace(args?.UserRequest) ? args.UserRequest : "Please describe the files.",
             TemplateDict = new Dictionary<string, object>()
         };

src/Infrastructure/BotSharp.Core/Files/Hooks/AttachmentProcessingHook.cs

@@ -1,63 +1,53 @@
-
-using Microsoft.EntityFrameworkCore;
-
 namespace BotSharp.Core.Files.Hooks;
 
 public class AttachmentProcessingHook : AgentHookBase
 {
-    private readonly IServiceProvider _services;
+    private static string TOOL_ASSISTANT = Guid.Empty.ToString();
 
     public override string SelfId => string.Empty;
 
     public AttachmentProcessingHook(IServiceProvider services, AgentSettings settings)
         : base(services, settings)
     {
-        _services = services;
     }
 
     public override void OnAgentLoaded(Agent agent)
     {
-        var fileService = _services.GetRequiredService<IBotSharpFileService>();
         var conv = _services.GetRequiredService<IConversationService>();
-        var hasConvFiles = fileService.HasConversationUserFiles(conv.ConversationId);
+        var isConvMode = conv.IsConversationMode();
+        var isEnabled = !agent.Tools.IsNullOrEmpty() && agent.Tools.Contains(AgentTool.FileAnalyzer);
 
-        if (hasConvFiles)
+        if (isConvMode && isEnabled)
         {
-            agent.Instruction += "\r\n\r\nPlease call load_attachment if user wants to describe files, such as images, pdf.\r\n\r\n";
-
-            if (agent.Functions != null)
+            var (prompt, loadAttachmentFn) = GetLoadAttachmentFn();
+            if (loadAttachmentFn != null)
             {
-                var json = JsonSerializer.Serialize(new
+                if (!string.IsNullOrWhiteSpace(prompt))
+                {
+                    agent.Instruction += $"\r\n\r\n{prompt}\r\n\r\n";
+                }
+
+                if (agent.Functions == null)
                 {
-                    user_request = new
-                    {
-                        type = "string",
-                        description = "The request posted by user, which is related to analyzing requested files. User can request for multiple files to process at one time."
-                    },
-                    file_types = new
-                    {
-                        type = "string",
-                        description = "The file types requested by user to analyze, such as image, png, jpeg, and pdf. There can be multiple file types in a single request. An example output is, 'image,pdf'"
-                    }
-                });
-
-                agent.Functions.Add(new FunctionDef
+                    agent.Functions = new List<FunctionDef> { loadAttachmentFn };
+                }
+                else
                 {
-                    Name = "load_attachment",
-                    Description = "If the user's request is related to analyzing files and/or images, you can call this function to analyze files and images.",
-                    Parameters =
-                    {
-                        Properties = JsonSerializer.Deserialize<JsonDocument>(json),
-                        Required = new List<string>
-                        {
-                            "user_request",
-                            "file_types"
-                        }
-                    }
-                });
+                    agent.Functions.Add(loadAttachmentFn);
+                }
             }
         }
 
         base.OnAgentLoaded(agent);
     }
+
+    private (string, FunctionDef?) GetLoadAttachmentFn()
+    {
+        var fnName = "load_attachment";
+        var db = _services.GetRequiredService<IBotSharpRepository>();
+        var agent = db.GetAgent(TOOL_ASSISTANT);
+        var prompt = agent?.Templates?.FirstOrDefault(x => x.Name.IsEqualTo($"{fnName}_prompt"))?.Content ?? string.Empty;
+        var loadAttachmentFn = agent?.Functions?.FirstOrDefault(x => x.Name.IsEqualTo(fnName));
+        return (prompt, loadAttachmentFn);
+    }
 }