Meleki
d66f8d2e73
- Thinking-Streaming: Parse 'reasoning_details' (MiniMax mit reasoning_split),
'reasoning' (Nvidia), 'reasoning_content' (DeepSeek/OpenAI-Compat),
und inline <think>...</think>-Tags aus delta.content (Fallback)
- MiniMax: max_tokens=32768, stream_options={include_usage}, reasoning_split=true
- 1h-Prompt-Cache-TTL für API (extended-cache-ttl-2025-04-11 Header,
Cache-Breakpoints auf System-Prompt + letztes Tool) und CLI (ENABLE_PROMPT_CACHING_1H=1)
- Null-Safety: choices/delta/tool_calls/usage null-Checks in Streaming + Non-Streaming
- finish_reason='length' → warning-Event + stopReason='max_tokens'
- MiniMax-Provider: BaseUrl, MinimaxApiKey-Setting, /api/models/minimax-Endpoint,
Model-Dropdown, statische Fallback-Modelle, Cache-Laden mit Fallback
- Safety-Net: InvalidOperationException-Catch um SSE-Zeilen-Block
1228 lines
60 KiB
C#
1228 lines
60 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Net.Http;
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using System.Net.Http.Headers;
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using System.Text;
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using System.Text.Json;
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using System.Threading;
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using System.Threading.Tasks;
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using Gott.Models;
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using Microsoft.AspNetCore.Http;
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namespace Gott.Services;
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/// <summary>
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/// OpenAI-kompatibler Service – unterstützt Nvidia (g4f.space Proxy) und andere
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/// OpenAI-API-kompatible Endpunkte. Unterstützt Tool-Calling (list_files, read_file,
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/// write_file, edit_file, delete_file, execute) und Streaming via SSE.
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/// </summary>
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public class OpenAiService
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{
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private readonly IHttpClientFactory _httpFactory;
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private readonly DatabaseService _db;
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private readonly ToolService _toolService;
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// Provider-Keys (statisch für ChatService.ResolveModelId)
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public static readonly HashSet<string> ProviderKeys = new() { "nvidia", "pollinations", "gemini", "openai", "minimax" };
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// Provider-Definitionen (inkl. API-Keys, instanzgebunden)
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private readonly Dictionary<string, (string BaseUrl, string ApiKey)> Providers;
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// Tools die für OpenAI-kompatible Provider verfügbar sind (konvertiert aus ToolService Anthropic-Format)
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private List<object> _openAiToolDefs;
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/// <summary>
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/// Konvertiert Anthropic-Format Tool-Definitionen (input_schema) in OpenAI-Format (function/parameters).
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/// Single source of truth: ToolService.GetToolDefinitions()
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/// </summary>
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private static List<object> ConvertTo_openAiToolDefs(object[] anthropicTools)
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{
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var result = new List<object>();
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foreach (var tool in anthropicTools)
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{
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var json = JsonSerializer.Serialize(tool);
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var el = JsonSerializer.Deserialize<JsonElement>(json);
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var name = el.TryGetProperty("name", out var n) ? n.GetString() : "";
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var desc = el.TryGetProperty("description", out var d) ? d.GetString() : "";
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var schema = el.TryGetProperty("input_schema", out var s) ? s : default;
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result.Add(new
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{
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type = "function",
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function = new
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{
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name,
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description = desc,
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parameters = schema.ValueKind != JsonValueKind.Undefined
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? JsonSerializer.Deserialize<object>(schema.GetRawText())
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: new { type = "object", properties = new Dictionary<string, object>(), required = Array.Empty<string>() } as object
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}
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});
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}
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return result;
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}
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public record ProviderModel(string Id, string DisplayName);
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private List<ProviderModel> _nvidiaModels = new List<ProviderModel>();
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private List<ProviderModel> _pollinationsModels = new List<ProviderModel>();
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private List<ProviderModel> _geminiModels = new List<ProviderModel>();
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private List<ProviderModel> _openaiModels = new List<ProviderModel>();
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private List<ProviderModel> _minimaxModels = new List<ProviderModel>();
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// Fallback-Modell-Liste für MiniMax (falls /v1/models nichts liefert).
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// Quelle: https://platform.minimax.io/docs/api-reference/api-overview
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private static readonly List<ProviderModel> MinimaxFallbackModels = new List<ProviderModel>
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{
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new ProviderModel("MiniMax-M2.7", "MiniMax-M2.7"),
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new ProviderModel("MiniMax-M2.7-highspeed", "MiniMax-M2.7-highspeed"),
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new ProviderModel("MiniMax-M2.5", "MiniMax-M2.5"),
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new ProviderModel("MiniMax-M2.5-highspeed", "MiniMax-M2.5-highspeed"),
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new ProviderModel("MiniMax-M2.1", "MiniMax-M2.1"),
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new ProviderModel("MiniMax-M2", "MiniMax-M2")
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};
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private readonly string _cacheFile;
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private readonly ServerSettingsService _settings;
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public OpenAiService(IHttpClientFactory httpFactory, DatabaseService db, ToolService toolService, ServerSettingsService settings, string dataDir)
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{
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_httpFactory = httpFactory;
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_db = db;
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_toolService = toolService;
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_settings = settings;
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_cacheFile = Path.Combine(dataDir, "models_cache.json");
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Providers = new Dictionary<string, (string BaseUrl, string ApiKey)>
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{
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["nvidia"] = ("https://g4f.space/api/nvidia/v1", ""),
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["pollinations"] = ("https://text.pollinations.ai/openai", ""),
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["gemini"] = ("https://generativelanguage.googleapis.com/v1beta/openai", ""), // Key kommt dynamisch aus Settings
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["openai"] = ("https://api.openai.com/v1", ""), // Key kommt dynamisch aus DB
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["minimax"] = ("https://api.minimax.io/v1", "") // Key kommt dynamisch aus Settings (MinimaxApiKey)
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};
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// Tool-Definitionen aus ToolService konvertieren (single source of truth)
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_openAiToolDefs = ConvertTo_openAiToolDefs(toolService.GetToolDefinitions(new ToolDefinitionOptions { IncludeFileTools = true }));
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}
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/// <summary>
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/// Lädt verfügbare Modelle – aus lokalem Cache (models_cache.json) oder von den APIs.
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/// </summary>
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public async Task LoadModelsAsync(bool forceRefresh = false)
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{
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if (!forceRefresh && File.Exists(_cacheFile))
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{
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try
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{
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var json = await File.ReadAllTextAsync(_cacheFile);
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var cache = JsonSerializer.Deserialize<Dictionary<string, List<ProviderModel>>>(json);
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if (cache != null)
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{
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_nvidiaModels = cache.ContainsKey("nvidia") ? cache["nvidia"] : new List<ProviderModel>();
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_pollinationsModels = cache.ContainsKey("pollinations") ? cache["pollinations"] : new List<ProviderModel>();
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_geminiModels = cache.ContainsKey("gemini") ? cache["gemini"] : new List<ProviderModel>();
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_openaiModels = cache.ContainsKey("openai") ? cache["openai"] : new List<ProviderModel>();
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_minimaxModels = cache.ContainsKey("minimax") ? cache["minimax"] : new List<ProviderModel>();
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// Falls der Cache älter als die MiniMax-Integration ist oder leer ist:
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// statische Fallback-Liste verwenden, damit das Dropdown nicht leer bleibt.
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if (_minimaxModels.Count == 0)
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{
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_minimaxModels = MinimaxFallbackModels;
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Console.WriteLine($"[OpenAiService] MiniMax-Cache leer/fehlt – nutze Fallback-Liste ({_minimaxModels.Count} Modelle). Tipp: /api/models/refresh aufrufen.");
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}
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Console.WriteLine($"[OpenAiService] Modelle aus Cache geladen: {_nvidiaModels.Count} Nvidia, {_pollinationsModels.Count} Pollinations, {_geminiModels.Count} Gemini, {_openaiModels.Count} OpenAI, {_minimaxModels.Count} MiniMax");
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return;
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine($"[OpenAiService] Cache-Datei fehlerhaft, lade von APIs: {ex.Message}");
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}
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}
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await RefreshModelsFromApis();
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}
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/// <summary>
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/// Lädt Modelle von allen Provider-APIs und speichert sie im Cache.
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/// </summary>
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public async Task RefreshModelsFromApis()
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{
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var nvidiaApiKey = _settings.Get("NvidiaApiKey");
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if (!string.IsNullOrEmpty(nvidiaApiKey))
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_nvidiaModels = await FetchModels("https://integrate.api.nvidia.com/v1/models", "Nvidia", nvidiaApiKey);
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else
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_nvidiaModels = await FetchModels("https://g4f.space/api/nvidia/models", "Nvidia");
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_pollinationsModels = await FetchModels("https://text.pollinations.ai/models", "Pollinations");
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var geminiApiKey = _settings.Get("GeminiApiKey");
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if (!string.IsNullOrEmpty(geminiApiKey))
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_geminiModels = await FetchModels("https://generativelanguage.googleapis.com/v1beta/openai/models", "Gemini", geminiApiKey);
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else
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Console.WriteLine("[OpenAiService] GeminiApiKey nicht konfiguriert – Gemini-Modelle nicht geladen.");
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// OpenAI: Key aus DB holen (erster aktiver OpenAI-Key)
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var openaiKey = await _db.GetFirstActiveKeyByProvider("openai");
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if (!string.IsNullOrEmpty(openaiKey))
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{
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var allOpenAi = await FetchModels("https://api.openai.com/v1/models", "OpenAI", openaiKey);
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// Nur Chat-Modelle filtern (gpt-*, o1-*, o3-*, o4-*, chatgpt-*)
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_openaiModels = allOpenAi
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.Where(m => m.Id.StartsWith("gpt-") || m.Id.StartsWith("o1-") || m.Id.StartsWith("o3-") || m.Id.StartsWith("o4-") || m.Id.StartsWith("chatgpt-"))
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.OrderBy(m => m.Id)
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.ToList();
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Console.WriteLine($"[OpenAiService] {_openaiModels.Count} OpenAI Chat-Modelle gefiltert (von {allOpenAi.Count} total).");
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}
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else
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Console.WriteLine("[OpenAiService] Kein aktiver OpenAI API-Key in DB – OpenAI-Modelle nicht geladen.");
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// MiniMax: Key aus Settings (MinimaxApiKey). Versuche /v1/models, sonst statische Fallback-Liste.
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var minimaxKey = _settings.Get("MinimaxApiKey");
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if (!string.IsNullOrEmpty(minimaxKey))
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{
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var fetched = await FetchModels("https://api.minimax.io/v1/models", "MiniMax", minimaxKey);
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_minimaxModels = fetched.Count > 0 ? fetched : MinimaxFallbackModels;
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if (fetched.Count == 0)
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Console.WriteLine($"[OpenAiService] MiniMax /v1/models leer/nicht erreichbar – nutze Fallback-Liste ({_minimaxModels.Count} Modelle).");
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}
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else
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{
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// Ohne Key: statische Fallback-Liste anbieten, damit das Dropdown nicht leer ist.
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_minimaxModels = MinimaxFallbackModels;
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Console.WriteLine($"[OpenAiService] MinimaxApiKey nicht konfiguriert – nutze Fallback-Liste ({_minimaxModels.Count} Modelle).");
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}
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// Cache speichern
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try
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{
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var cache = new Dictionary<string, List<ProviderModel>>
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{
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["nvidia"] = _nvidiaModels,
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["pollinations"] = _pollinationsModels,
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["gemini"] = _geminiModels,
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["openai"] = _openaiModels,
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["minimax"] = _minimaxModels
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};
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var json = JsonSerializer.Serialize(cache, new JsonSerializerOptions { WriteIndented = true });
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await File.WriteAllTextAsync(_cacheFile, json);
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Console.WriteLine($"[OpenAiService] Modelle-Cache gespeichert: {_cacheFile}");
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}
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catch (Exception ex)
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{
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Console.WriteLine($"[OpenAiService] Fehler beim Speichern des Modelle-Cache: {ex.Message}");
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}
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}
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private async Task<List<ProviderModel>> FetchModels(string url, string providerName, string apiKey = "")
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{
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try
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{
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var client = CreateClient(apiKey);
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var resp = await client.GetAsync(url);
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if (!resp.IsSuccessStatusCode) return new List<ProviderModel>();
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var json = await resp.Content.ReadAsStringAsync();
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var root = JsonSerializer.Deserialize<JsonElement>(json);
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// Pollinations: root is array [{ name, ... }]
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// Nvidia/OpenAI: root is { data: [{ id, ... }] }
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JsonElement arr;
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if (root.ValueKind == JsonValueKind.Array)
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arr = root;
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else if (root.TryGetProperty("data", out var data))
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arr = data;
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else
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return new List<ProviderModel>();
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var models = new List<ProviderModel>();
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foreach (var item in arr.EnumerateArray())
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{
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// try "id" first (Nvidia), fallback to "name" (Pollinations)
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string id = null;
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if (item.TryGetProperty("id", out var idProp) && idProp.ValueKind == JsonValueKind.String) id = idProp.GetString();
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if (id == null && item.TryGetProperty("name", out var nameProp) && nameProp.ValueKind == JsonValueKind.String) id = nameProp.GetString();
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if (string.IsNullOrEmpty(id)) continue;
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var display = id.Contains('/') ? id[(id.LastIndexOf('/') + 1)..] : id;
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models.Add(new ProviderModel(id, display));
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}
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Console.WriteLine($"[OpenAiService] {models.Count} {providerName}-Modelle geladen.");
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return models;
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}
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catch (Exception ex)
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{
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Console.WriteLine($"[OpenAiService] Fehler beim Laden der {providerName}-Modelle: {ex.Message}");
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return new List<ProviderModel>();
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}
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}
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public List<ProviderModel> GetNvidiaModels() => _nvidiaModels;
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public List<ProviderModel> GetPollinationsModels() => _pollinationsModels;
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public List<ProviderModel> GetGeminiModels() => _geminiModels;
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public List<ProviderModel> GetOpenAiModels() => _openaiModels;
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public List<ProviderModel> GetMinimaxModels() => _minimaxModels;
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/// <summary>
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/// Gibt den Provider und das eigentliche Modell-ID aus einem kombinierten Model-String zurück.
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/// Format: "nvidia:moonshotai/kimi-k2.5" → ("nvidia", "moonshotai/kimi-k2.5")
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/// </summary>
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public static (string provider, string modelId) ParseModelString(string model)
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{
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if (string.IsNullOrEmpty(model)) return ("", model ?? "");
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var idx = model.IndexOf(':');
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if (idx < 0) return ("", model);
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return (model[..idx], model[(idx + 1)..]);
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}
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/// <summary>
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/// Prüft ob ein Model-String einen externen OpenAI-kompatiblen Provider referenziert.
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/// </summary>
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public static bool IsOpenAiProvider(string model)
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{
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var (provider, _) = ParseModelString(model);
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return ProviderKeys.Contains(provider);
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}
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public async Task StreamChat(
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HttpResponse response,
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string modelString,
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string systemPromptText,
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List<object> messages,
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string chainId,
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string workspace = null,
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string sessionId = null,
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string agentId = null,
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int maxIterations = 10,
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string apiKeyOverride = null,
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CancellationToken workCt = default,
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CancellationToken sseCt = default)
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{
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var sw = System.Diagnostics.Stopwatch.StartNew();
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var usage = new TokenUsage();
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var iteration = 0;
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var chain = new ChainRecord
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{
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ChainId = chainId,
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SessionId = sessionId,
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Model = modelString
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};
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var resolved = ResolveProviderConfig(modelString, apiKeyOverride);
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if (resolved == null)
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{
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var errMsg = $"Unbekannter Provider: '{ParseModelString(modelString).provider}'";
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await _db.SaveMessage(new MessageRecord
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{
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ChainId = chainId, Iteration = 1,
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Role = "system", Type = "error",
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Content = errMsg, IsError = true
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});
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await SseHelper.TryWriteSse(response, "error", new { error = errMsg }, sseCt);
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await SseHelper.TryWriteSse(response, "done", new { chainId }, sseCt);
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return;
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}
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var (provider, modelId, providerConfig) = resolved.Value;
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try
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{
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var apiMessages = BuildApiMessages(systemPromptText, messages);
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// Agentic Loop
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while (iteration < maxIterations)
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{
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workCt.ThrowIfCancellationRequested();
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iteration++;
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var client = CreateClient(providerConfig.ApiKey);
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// MiniMax-spezifisch: höheres Output-Budget (Thinking-Modelle brauchen viel)
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var maxTokens = provider == "minimax" ? 32768 : 16384;
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var payload = new Dictionary<string, object>
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{
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["model"] = modelId,
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["messages"] = apiMessages,
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["stream"] = true,
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["max_tokens"] = maxTokens,
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["stream_options"] = new { include_usage = true },
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["tools"] = _openAiToolDefs,
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["tool_choice"] = "auto"
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};
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if (provider == "nvidia" && IsNvidiaThinkingModel(modelId))
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payload["chat_template_kwargs"] = new { thinking = true };
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// MiniMax-Thinking-Modelle: reasoning_split → Thinking landet in delta.reasoning_details
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// statt als <think>...</think> inline in delta.content (siehe MiniMax-OpenAI-Compat-Docs)
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if (provider == "minimax")
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payload["extra_body"] = new { reasoning_split = true };
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var jsonPayload = JsonSerializer.Serialize(payload);
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var httpContent = new StringContent(jsonPayload, Encoding.UTF8, "application/json");
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using var httpResp = await client.SendAsync(
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new HttpRequestMessage(HttpMethod.Post, $"{providerConfig.BaseUrl}/chat/completions") { Content = httpContent },
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HttpCompletionOption.ResponseHeadersRead,
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workCt
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);
|
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|
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if (!httpResp.IsSuccessStatusCode)
|
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{
|
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var errBody = await httpResp.Content.ReadAsStringAsync(workCt);
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var errMsg = $"API {(int)httpResp.StatusCode}: {errBody}";
|
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await _db.SaveMessage(new MessageRecord
|
||
{
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ChainId = chainId, Iteration = iteration,
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||
Role = "system", Type = "error",
|
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Content = errMsg, IsError = true
|
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});
|
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await SseHelper.TryWriteSse(response, "error", new { error = errMsg }, sseCt);
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await FinalizeChain(chain, usage, iteration, "error", sw);
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await SseHelper.TryWriteSse(response, "done", new { chainId }, sseCt);
|
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return;
|
||
}
|
||
|
||
// SSE-Stream lesen
|
||
using var stream = await httpResp.Content.ReadAsStreamAsync(workCt);
|
||
using var reader = new System.IO.StreamReader(stream);
|
||
|
||
var fullText = new StringBuilder();
|
||
var thinkingText = new StringBuilder();
|
||
// Tool-Call Akkumulatoren: id → (name, arguments)
|
||
var toolCallAccumulators = new Dictionary<int, (string Id, string Name, StringBuilder Args, string ThoughtSignature)>();
|
||
string thoughtSignature = null;
|
||
var textStarted = false;
|
||
var thinkingStarted = false;
|
||
var stopReason = "end_turn";
|
||
var gotLengthFinish = false;
|
||
// Inline-<think>-Tag-Parser für MiniMax-Modelle die Thinking als <think>...</think>
|
||
// in delta.content streamen (statt in reasoning_details).
|
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// Buffer hält partielle Tags zurück (z.B. wenn ein Chunk auf "<thi" endet).
|
||
var inlineThinkBuf = new StringBuilder();
|
||
var inlineInThink = false;
|
||
|
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string line;
|
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while ((line = await reader.ReadLineAsync(workCt)) != null)
|
||
{
|
||
workCt.ThrowIfCancellationRequested();
|
||
if (!line.StartsWith("data:")) continue;
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||
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||
var data = line[5..].Trim();
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if (data == "[DONE]") break;
|
||
|
||
JsonElement parsed;
|
||
try { parsed = JsonSerializer.Deserialize<JsonElement>(data); }
|
||
catch { continue; }
|
||
|
||
try
|
||
{
|
||
if (!parsed.TryGetProperty("choices", out var choices) || choices.ValueKind != JsonValueKind.Array) goto parseUsage;
|
||
|
||
foreach (var choice in choices.EnumerateArray())
|
||
{
|
||
// Finish reason
|
||
if (choice.TryGetProperty("finish_reason", out var finishProp) && finishProp.ValueKind != JsonValueKind.Null)
|
||
{
|
||
var fr = (finishProp.GetString() ?? "").ToLowerInvariant();
|
||
if (fr == "tool_calls" || fr == "function_call") stopReason = "tool_use";
|
||
else if (fr == "stop") stopReason = "end_turn";
|
||
else if (fr == "length") { stopReason = "max_tokens"; gotLengthFinish = true; }
|
||
}
|
||
|
||
if (!choice.TryGetProperty("delta", out var delta) || delta.ValueKind != JsonValueKind.Object) continue;
|
||
|
||
// Reasoning/Thinking-Delta:
|
||
// - "reasoning" → Nvidia Thinking-Modelle (String)
|
||
// - "reasoning_content"→ DeepSeek/manche OpenAI-Compat-Anbieter (String)
|
||
// - "reasoning_details"→ MiniMax mit extra_body.reasoning_split (Array von {text, ...})
|
||
string reasoningChunk = null;
|
||
if (delta.TryGetProperty("reasoning", out var reasoningProp) && reasoningProp.ValueKind == JsonValueKind.String)
|
||
reasoningChunk = reasoningProp.GetString();
|
||
else if (delta.TryGetProperty("reasoning_content", out var rcProp) && rcProp.ValueKind == JsonValueKind.String)
|
||
reasoningChunk = rcProp.GetString();
|
||
else if (delta.TryGetProperty("reasoning_details", out var rdProp) && rdProp.ValueKind == JsonValueKind.Array)
|
||
{
|
||
var sbRd = new StringBuilder();
|
||
foreach (var rd in rdProp.EnumerateArray())
|
||
{
|
||
if (rd.ValueKind == JsonValueKind.Object && rd.TryGetProperty("text", out var rdText) && rdText.ValueKind == JsonValueKind.String)
|
||
sbRd.Append(rdText.GetString());
|
||
}
|
||
if (sbRd.Length > 0) reasoningChunk = sbRd.ToString();
|
||
}
|
||
if (!string.IsNullOrEmpty(reasoningChunk))
|
||
{
|
||
if (!thinkingStarted)
|
||
{
|
||
await SseHelper.TryWriteSse(response, "thinking_start", new { }, sseCt);
|
||
thinkingStarted = true;
|
||
}
|
||
thinkingText.Append(reasoningChunk);
|
||
await SseHelper.TryWriteSse(response, "thinking_delta", new { text = reasoningChunk }, sseCt);
|
||
}
|
||
|
||
// Text-Delta – mit Inline-<think>-Tag-Parser (Fallback für MiniMax wenn reasoning_split nicht greift)
|
||
if (delta.TryGetProperty("content", out var contentProp) && contentProp.ValueKind == JsonValueKind.String)
|
||
{
|
||
var chunk = contentProp.GetString();
|
||
if (!string.IsNullOrEmpty(chunk))
|
||
{
|
||
inlineThinkBuf.Append(chunk);
|
||
while (true)
|
||
{
|
||
var buf = inlineThinkBuf.ToString();
|
||
if (inlineInThink)
|
||
{
|
||
var endIdx = buf.IndexOf("</think>", StringComparison.Ordinal);
|
||
if (endIdx >= 0)
|
||
{
|
||
// Thinking-Inhalt bis zum </think> emittieren, dann state-flip
|
||
var thinkPart = buf.Substring(0, endIdx);
|
||
if (thinkPart.Length > 0)
|
||
{
|
||
if (!thinkingStarted)
|
||
{
|
||
await SseHelper.TryWriteSse(response, "thinking_start", new { }, sseCt);
|
||
thinkingStarted = true;
|
||
}
|
||
thinkingText.Append(thinkPart);
|
||
await SseHelper.TryWriteSse(response, "thinking_delta", new { text = thinkPart }, sseCt);
|
||
}
|
||
inlineThinkBuf.Clear();
|
||
inlineThinkBuf.Append(buf.Substring(endIdx + 8));
|
||
inlineInThink = false;
|
||
continue;
|
||
}
|
||
// Kein vollständiger </think> in Sicht – partielles Tag-Ende zurückhalten (max 7 Zeichen)
|
||
var safeLen = buf.Length;
|
||
for (int k = 1; k <= Math.Min(7, buf.Length); k++)
|
||
{
|
||
if ("</think>".StartsWith(buf.Substring(buf.Length - k))) { safeLen = buf.Length - k; break; }
|
||
}
|
||
if (safeLen > 0)
|
||
{
|
||
var flush = buf.Substring(0, safeLen);
|
||
if (!thinkingStarted)
|
||
{
|
||
await SseHelper.TryWriteSse(response, "thinking_start", new { }, sseCt);
|
||
thinkingStarted = true;
|
||
}
|
||
thinkingText.Append(flush);
|
||
await SseHelper.TryWriteSse(response, "thinking_delta", new { text = flush }, sseCt);
|
||
inlineThinkBuf.Clear();
|
||
inlineThinkBuf.Append(buf.Substring(safeLen));
|
||
}
|
||
break;
|
||
}
|
||
else
|
||
{
|
||
var startIdx = buf.IndexOf("<think>", StringComparison.Ordinal);
|
||
if (startIdx >= 0)
|
||
{
|
||
// Text vor <think> als Text emittieren, dann state-flip
|
||
var textPart = buf.Substring(0, startIdx);
|
||
if (textPart.Length > 0)
|
||
{
|
||
if (thinkingStarted)
|
||
{
|
||
await SseHelper.TryWriteSse(response, "thinking_end", new { }, sseCt);
|
||
thinkingStarted = false;
|
||
}
|
||
if (!textStarted)
|
||
{
|
||
await SseHelper.TryWriteSse(response, "text_start", new { index = 0 }, sseCt);
|
||
textStarted = true;
|
||
}
|
||
fullText.Append(textPart);
|
||
await SseHelper.TryWriteSse(response, "text_delta", new { text = textPart }, sseCt);
|
||
}
|
||
inlineThinkBuf.Clear();
|
||
inlineThinkBuf.Append(buf.Substring(startIdx + 7));
|
||
inlineInThink = true;
|
||
continue;
|
||
}
|
||
// Kein vollständiger <think> in Sicht – partielles Tag-Ende zurückhalten (max 6 Zeichen)
|
||
var safeLen = buf.Length;
|
||
for (int k = 1; k <= Math.Min(6, buf.Length); k++)
|
||
{
|
||
if ("<think>".StartsWith(buf.Substring(buf.Length - k))) { safeLen = buf.Length - k; break; }
|
||
}
|
||
if (safeLen > 0)
|
||
{
|
||
var flush = buf.Substring(0, safeLen);
|
||
if (thinkingStarted)
|
||
{
|
||
await SseHelper.TryWriteSse(response, "thinking_end", new { }, sseCt);
|
||
thinkingStarted = false;
|
||
}
|
||
if (!textStarted)
|
||
{
|
||
await SseHelper.TryWriteSse(response, "text_start", new { index = 0 }, sseCt);
|
||
textStarted = true;
|
||
}
|
||
fullText.Append(flush);
|
||
await SseHelper.TryWriteSse(response, "text_delta", new { text = flush }, sseCt);
|
||
inlineThinkBuf.Clear();
|
||
inlineThinkBuf.Append(buf.Substring(safeLen));
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// Tool-Call Deltas akkumulieren
|
||
if (delta.TryGetProperty("tool_calls", out var toolCallsProp) && toolCallsProp.ValueKind == JsonValueKind.Array)
|
||
{
|
||
foreach (var tc in toolCallsProp.EnumerateArray())
|
||
{
|
||
// thought_signature aus tc.extra_content.google.thought_signature (Gemini-spezifisch)
|
||
if (tc.TryGetProperty("extra_content", out var extraContent)
|
||
&& extraContent.TryGetProperty("google", out var googleContent)
|
||
&& googleContent.TryGetProperty("thought_signature", out var tcTsProp)
|
||
&& tcTsProp.ValueKind == JsonValueKind.String)
|
||
{
|
||
var ts = tcTsProp.GetString();
|
||
if (!string.IsNullOrEmpty(ts)) thoughtSignature = ts;
|
||
}
|
||
|
||
// ID aus diesem Chunk lesen (kann leer sein bei Folge-Deltas)
|
||
var chunkId = tc.TryGetProperty("id", out var idProp2) ? (idProp2.GetString() ?? "") : "";
|
||
|
||
// Schlüssel bestimmen: zuerst per id, dann per index
|
||
// → verhindert Kollisionen bei parallelen Tool-Calls ohne index (z.B. Gemini)
|
||
int idx;
|
||
if (!string.IsNullOrEmpty(chunkId))
|
||
{
|
||
// Prüfen ob diese ID schon einem Index zugeordnet ist
|
||
idx = -1;
|
||
foreach (var kv in toolCallAccumulators)
|
||
{
|
||
if (kv.Value.Id == chunkId) { idx = kv.Key; break; }
|
||
}
|
||
if (idx == -1)
|
||
{
|
||
// Neue ID → nächsten freien Index vergeben
|
||
idx = toolCallAccumulators.Count;
|
||
while (toolCallAccumulators.ContainsKey(idx)) idx++;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
idx = tc.TryGetProperty("index", out var idxProp) ? idxProp.GetInt32() : 0;
|
||
}
|
||
|
||
if (!toolCallAccumulators.ContainsKey(idx))
|
||
toolCallAccumulators[idx] = ("", "", new StringBuilder(), null);
|
||
|
||
var (accId, accName, accArgs, accTs) = toolCallAccumulators[idx];
|
||
|
||
if (!string.IsNullOrEmpty(chunkId))
|
||
accId = chunkId;
|
||
|
||
if (tc.TryGetProperty("function", out var funcProp))
|
||
{
|
||
if (funcProp.TryGetProperty("name", out var nameProp2))
|
||
{
|
||
var n = nameProp2.GetString() ?? "";
|
||
if (!string.IsNullOrEmpty(n)) accName = n;
|
||
}
|
||
if (funcProp.TryGetProperty("arguments", out var argsProp))
|
||
accArgs.Append(argsProp.GetString() ?? "");
|
||
|
||
}
|
||
|
||
// Globalen thoughtSignature-Wert auch in accTs des ersten Slots übernehmen
|
||
if (!string.IsNullOrEmpty(thoughtSignature) && accTs == null && idx == 0)
|
||
accTs = thoughtSignature;
|
||
|
||
toolCallAccumulators[idx] = (accId, accName, accArgs, accTs);
|
||
}
|
||
}
|
||
}
|
||
|
||
parseUsage:
|
||
// Usage aus letztem Chunk
|
||
if (parsed.TryGetProperty("usage", out var usageProp) && usageProp.ValueKind == JsonValueKind.Object)
|
||
{
|
||
if (usageProp.TryGetProperty("prompt_tokens", out var pt) && pt.ValueKind == JsonValueKind.Number)
|
||
usage.InputTokens = pt.GetInt64();
|
||
if (usageProp.TryGetProperty("completion_tokens", out var ct2) && ct2.ValueKind == JsonValueKind.Number)
|
||
usage.OutputTokens = ct2.GetInt64();
|
||
}
|
||
}
|
||
catch (InvalidOperationException) { /* Unerwartetes JSON-Format von Provider – Zeile überspringen */ }
|
||
}
|
||
|
||
// Inline-Think-Buffer-Rest flushen (falls Stream mit partiellem Tag-Fragment endete)
|
||
if (inlineThinkBuf.Length > 0)
|
||
{
|
||
var tail = inlineThinkBuf.ToString();
|
||
if (inlineInThink)
|
||
{
|
||
if (!thinkingStarted) { await SseHelper.TryWriteSse(response, "thinking_start", new { }, sseCt); thinkingStarted = true; }
|
||
thinkingText.Append(tail);
|
||
await SseHelper.TryWriteSse(response, "thinking_delta", new { text = tail }, sseCt);
|
||
}
|
||
else
|
||
{
|
||
if (thinkingStarted) { await SseHelper.TryWriteSse(response, "thinking_end", new { }, sseCt); thinkingStarted = false; }
|
||
if (!textStarted) { await SseHelper.TryWriteSse(response, "text_start", new { index = 0 }, sseCt); textStarted = true; }
|
||
fullText.Append(tail);
|
||
await SseHelper.TryWriteSse(response, "text_delta", new { text = tail }, sseCt);
|
||
}
|
||
inlineThinkBuf.Clear();
|
||
}
|
||
|
||
// Thinking-End senden falls noch offen
|
||
if (thinkingStarted)
|
||
await SseHelper.TryWriteSse(response, "thinking_end", new { }, sseCt);
|
||
|
||
// Text-End senden falls Text gestreamt wurde
|
||
if (textStarted)
|
||
await SseHelper.TryWriteSse(response, "text_end", new { }, sseCt);
|
||
|
||
// Warnung wenn finish_reason="length" → User soll wissen dass Output gekürzt wurde
|
||
if (gotLengthFinish)
|
||
{
|
||
var warnMsg = $"Antwort wurde wegen max_tokens-Limit ({maxTokens}) gekürzt. Erhöhe das Limit oder lass das Modell die Antwort fortsetzen.";
|
||
await SseHelper.TryWriteSse(response, "warning", new { message = warnMsg }, sseCt);
|
||
}
|
||
|
||
// Thinking-Text in DB speichern
|
||
var finalThinking = thinkingText.ToString();
|
||
if (!string.IsNullOrEmpty(finalThinking))
|
||
{
|
||
await _db.SaveMessage(new MessageRecord
|
||
{
|
||
ChainId = chainId, Iteration = iteration,
|
||
Role = "assistant", Type = "thinking",
|
||
Content = finalThinking
|
||
});
|
||
}
|
||
|
||
// Text in DB speichern
|
||
var finalText = fullText.ToString();
|
||
if (!string.IsNullOrEmpty(finalText))
|
||
{
|
||
await _db.SaveMessage(new MessageRecord
|
||
{
|
||
ChainId = chainId, Iteration = iteration,
|
||
Role = "assistant", Type = "text",
|
||
Content = finalText
|
||
});
|
||
}
|
||
|
||
// Keine Tool-Calls → fertig (stopReason als Fallback, primär Count prüfen)
|
||
if (toolCallAccumulators.Count == 0)
|
||
{
|
||
await FinalizeChain(chain, usage, iteration, stopReason, sw);
|
||
await SseHelper.TryWriteSse(response, "done", new
|
||
{
|
||
model = modelString,
|
||
inputTokens = usage.InputTokens,
|
||
outputTokens = usage.OutputTokens,
|
||
iterations = iteration,
|
||
chainId,
|
||
durationMs = sw.ElapsedMilliseconds,
|
||
stopReason
|
||
}, sseCt);
|
||
return;
|
||
}
|
||
|
||
// Tool-Calls ausführen
|
||
// Assistant-Message mit tool_calls in die History einfügen
|
||
var toolCallsForHistory = new List<object>();
|
||
foreach (var (_, (tcId, tcName, tcArgs, tcTs)) in toolCallAccumulators)
|
||
{
|
||
// thought_signature pro Tool-Call mitschicken falls vorhanden
|
||
// Gemini erwartet sie in extra_content.google.thought_signature (nicht in function.thought_signature)
|
||
if (!string.IsNullOrEmpty(tcTs))
|
||
{
|
||
toolCallsForHistory.Add(new
|
||
{
|
||
id = tcId,
|
||
type = "function",
|
||
function = new { name = tcName, arguments = tcArgs.ToString() },
|
||
extra_content = new { google = new { thought_signature = tcTs } }
|
||
});
|
||
}
|
||
else
|
||
{
|
||
toolCallsForHistory.Add(new
|
||
{
|
||
id = tcId,
|
||
type = "function",
|
||
function = new { name = tcName, arguments = tcArgs.ToString() }
|
||
});
|
||
}
|
||
|
||
// In DB speichern – thought_signature als eigenes Feld
|
||
await _db.SaveMessage(new MessageRecord
|
||
{
|
||
ChainId = chainId, Iteration = iteration,
|
||
Role = "assistant", Type = "tool_use",
|
||
Content = tcArgs.ToString(),
|
||
ToolCallId = tcId, ToolName = tcName,
|
||
ThoughtSignature = tcTs
|
||
});
|
||
}
|
||
|
||
apiMessages.Add(new
|
||
{
|
||
role = "assistant",
|
||
content = string.IsNullOrEmpty(finalText) ? "" : finalText,
|
||
tool_calls = toolCallsForHistory
|
||
});
|
||
|
||
// Tool-Results sammeln
|
||
var toolResults = new List<object>();
|
||
foreach (var (_, (tcId, tcName, tcArgs, _)) in toolCallAccumulators)
|
||
{
|
||
// Tool-Start SSE
|
||
await SseHelper.TryWriteSse(response, "tool_start", new { name = tcName, id = tcId }, sseCt);
|
||
|
||
// Tool ausführen
|
||
JsonElement inputEl;
|
||
try { inputEl = JsonSerializer.Deserialize<JsonElement>(tcArgs.ToString()); }
|
||
catch { inputEl = JsonSerializer.Deserialize<JsonElement>("{}"); }
|
||
|
||
var toolResult = await _toolService.ExecuteTool(tcName, inputEl, new ToolExecutionContext { Workspace = workspace });
|
||
var isError = toolResult.StartsWith("Fehler:") || toolResult.StartsWith("Error:");
|
||
|
||
// Tool-End SSE
|
||
await SseHelper.TryWriteSse(response, "tool_end", new
|
||
{
|
||
name = tcName,
|
||
id = tcId,
|
||
result = toolResult,
|
||
isError
|
||
}, sseCt);
|
||
|
||
toolResults.Add(new
|
||
{
|
||
role = "tool",
|
||
tool_call_id = tcId,
|
||
content = toolResult
|
||
});
|
||
|
||
// Tool-Result in DB speichern
|
||
await _db.SaveMessage(new MessageRecord
|
||
{
|
||
ChainId = chainId, Iteration = iteration,
|
||
Role = "tool", Type = "tool_result",
|
||
Content = toolResult,
|
||
ToolCallId = tcId, ToolName = tcName,
|
||
IsError = isError
|
||
});
|
||
}
|
||
|
||
// Tool-Results in History einfügen
|
||
foreach (var tr in toolResults)
|
||
apiMessages.Add(tr);
|
||
}
|
||
|
||
// Max Iterations erreicht
|
||
await SseHelper.TryWriteSse(response, "error", new { error = "Max iterations erreicht" }, sseCt);
|
||
await FinalizeChain(chain, usage, iteration, "max_iterations", sw);
|
||
await SseHelper.TryWriteSse(response, "done", new { chainId }, sseCt);
|
||
}
|
||
catch (OperationCanceledException)
|
||
{
|
||
await FinalizeChain(chain, usage, iteration, "stopped", sw);
|
||
await SseHelper.TryWriteSse(response, "done", new
|
||
{
|
||
model = modelString,
|
||
iterations = iteration,
|
||
chainId,
|
||
durationMs = sw.ElapsedMilliseconds,
|
||
stopReason = "stopped"
|
||
}, CancellationToken.None);
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
var errMsg = $"Fehler: {ex.Message}";
|
||
await _db.SaveMessage(new MessageRecord
|
||
{
|
||
ChainId = chainId, Iteration = iteration,
|
||
Role = "system", Type = "error",
|
||
Content = errMsg, IsError = true
|
||
});
|
||
await SseHelper.TryWriteSse(response, "error", new { error = errMsg }, sseCt);
|
||
await FinalizeChain(chain, usage, iteration, "error", sw);
|
||
await SseHelper.TryWriteSse(response, "done", new { chainId }, sseCt);
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// Non-Streaming Chat für Telegram, Cronjobs und send_to_session.
|
||
/// Gibt den finalen Antworttext zurück. Unterstützt Tool-Calling (agentic loop).
|
||
/// </summary>
|
||
public async Task<string> ChatNonStreaming(
|
||
ChatContext ctx,
|
||
List<object> messages,
|
||
Func<int, Task> onIteration = null)
|
||
{
|
||
var sw = System.Diagnostics.Stopwatch.StartNew();
|
||
var usage = new TokenUsage();
|
||
int iterations = 0;
|
||
var finalText = new StringBuilder();
|
||
|
||
var resolved = ResolveProviderConfig(ctx.ModelId, ctx.ApiToken);
|
||
if (resolved == null)
|
||
throw new Exception($"Unbekannter Provider: '{ParseModelString(ctx.ModelId).provider}'");
|
||
|
||
var (provider, modelId, providerConfig) = resolved.Value;
|
||
|
||
var chain = new ChainRecord
|
||
{
|
||
ChainId = ctx.ChainId,
|
||
SessionId = ctx.SessionId,
|
||
Model = ctx.ModelId
|
||
};
|
||
|
||
var apiMessages = BuildApiMessages(ctx.SystemPromptText, messages);
|
||
|
||
try
|
||
{
|
||
while (iterations < ctx.MaxIterations)
|
||
{
|
||
iterations++;
|
||
onIteration?.Invoke(iterations);
|
||
|
||
var client = CreateClient(providerConfig.ApiKey);
|
||
var payload = new Dictionary<string, object>
|
||
{
|
||
["model"] = modelId,
|
||
["messages"] = apiMessages,
|
||
["stream"] = false,
|
||
["max_tokens"] = 16384,
|
||
["tools"] = _openAiToolDefs,
|
||
["tool_choice"] = "auto"
|
||
};
|
||
|
||
if (provider == "nvidia" && IsNvidiaThinkingModel(modelId))
|
||
payload["chat_template_kwargs"] = new { thinking = true };
|
||
|
||
var jsonPayload = JsonSerializer.Serialize(payload);
|
||
var httpContent = new StringContent(jsonPayload, Encoding.UTF8, "application/json");
|
||
|
||
using var httpResp = await client.SendAsync(
|
||
new HttpRequestMessage(HttpMethod.Post, $"{providerConfig.BaseUrl}/chat/completions") { Content = httpContent });
|
||
|
||
var respBody = await httpResp.Content.ReadAsStringAsync();
|
||
|
||
if (!httpResp.IsSuccessStatusCode)
|
||
{
|
||
var errMsg = $"API {(int)httpResp.StatusCode}: {respBody}";
|
||
await _db.SaveMessage(new MessageRecord
|
||
{
|
||
ChainId = ctx.ChainId, Iteration = iterations,
|
||
Role = "system", Type = "error",
|
||
Content = errMsg, IsError = true
|
||
});
|
||
await FinalizeChain(chain, usage, iterations, "error", sw);
|
||
throw new Exception($"OpenAI API Fehler: {(int)httpResp.StatusCode}");
|
||
}
|
||
|
||
var resp = JsonSerializer.Deserialize<JsonElement>(respBody);
|
||
|
||
// Usage tracken
|
||
if (resp.TryGetProperty("usage", out var usageProp) && usageProp.ValueKind == JsonValueKind.Object)
|
||
{
|
||
if (usageProp.TryGetProperty("prompt_tokens", out var pt) && pt.ValueKind == JsonValueKind.Number)
|
||
usage.InputTokens = pt.GetInt64();
|
||
if (usageProp.TryGetProperty("completion_tokens", out var ct2) && ct2.ValueKind == JsonValueKind.Number)
|
||
usage.OutputTokens = ct2.GetInt64();
|
||
}
|
||
|
||
// Erste Choice auswerten
|
||
if (!resp.TryGetProperty("choices", out var choices) || choices.ValueKind != JsonValueKind.Array || choices.GetArrayLength() == 0) break;
|
||
|
||
var choice = choices[0];
|
||
if (!choice.TryGetProperty("message", out var message) || message.ValueKind != JsonValueKind.Object) break;
|
||
var finishReason = choice.TryGetProperty("finish_reason", out var frProp) ? frProp.GetString() ?? "" : "";
|
||
|
||
// Reasoning/Thinking extrahieren (Nvidia Thinking-Modelle)
|
||
if (message.TryGetProperty("reasoning", out var reasoningProp) && reasoningProp.ValueKind == JsonValueKind.String)
|
||
{
|
||
var reasoning = reasoningProp.GetString() ?? "";
|
||
if (!string.IsNullOrEmpty(reasoning))
|
||
{
|
||
await _db.SaveMessage(new MessageRecord
|
||
{
|
||
ChainId = ctx.ChainId, Iteration = iterations,
|
||
Role = "assistant", Type = "thinking",
|
||
Content = reasoning
|
||
});
|
||
}
|
||
}
|
||
|
||
// Text extrahieren
|
||
if (message.TryGetProperty("content", out var contentProp) && contentProp.ValueKind == JsonValueKind.String)
|
||
{
|
||
var text = contentProp.GetString() ?? "";
|
||
if (!string.IsNullOrEmpty(text))
|
||
{
|
||
finalText.Append(text);
|
||
await _db.SaveMessage(new MessageRecord
|
||
{
|
||
ChainId = ctx.ChainId, Iteration = iterations,
|
||
Role = "assistant", Type = "text",
|
||
Content = text
|
||
});
|
||
}
|
||
}
|
||
|
||
// Tool-Calls prüfen
|
||
if (!message.TryGetProperty("tool_calls", out var toolCallsProp) || toolCallsProp.ValueKind != JsonValueKind.Array || toolCallsProp.GetArrayLength() == 0)
|
||
{
|
||
await FinalizeChain(chain, usage, iterations, "end_turn", sw);
|
||
break;
|
||
}
|
||
|
||
// Assistant-Message mit tool_calls in History
|
||
var assistantMsg = JsonSerializer.Deserialize<JsonElement>(message.GetRawText());
|
||
apiMessages.Add(new
|
||
{
|
||
role = "assistant",
|
||
content = message.TryGetProperty("content", out var c) && c.ValueKind == JsonValueKind.String ? c.GetString() ?? "" : "",
|
||
tool_calls = JsonSerializer.Deserialize<List<object>>(toolCallsProp.GetRawText())
|
||
});
|
||
|
||
// Tool-Calls ausführen
|
||
var toolResults = new List<object>();
|
||
foreach (var tc in toolCallsProp.EnumerateArray())
|
||
{
|
||
var tcId = tc.GetProperty("id").GetString() ?? "";
|
||
var func = tc.GetProperty("function");
|
||
var tcName = func.GetProperty("name").GetString() ?? "";
|
||
var tcArgs = func.TryGetProperty("arguments", out var argsProp) ? argsProp.GetString() ?? "{}" : "{}";
|
||
|
||
await _db.SaveMessage(new MessageRecord
|
||
{
|
||
ChainId = ctx.ChainId, Iteration = iterations,
|
||
Role = "assistant", Type = "tool_use",
|
||
Content = tcArgs,
|
||
ToolCallId = tcId, ToolName = tcName
|
||
});
|
||
|
||
JsonElement inputEl;
|
||
try { inputEl = JsonSerializer.Deserialize<JsonElement>(tcArgs); }
|
||
catch { inputEl = JsonSerializer.Deserialize<JsonElement>("{}"); }
|
||
|
||
string toolResult;
|
||
bool isError = false;
|
||
try { toolResult = await _toolService.ExecuteTool(tcName, inputEl, new ToolExecutionContext { Workspace = ctx.Workspace }); }
|
||
catch (Exception ex) { toolResult = $"Fehler: {ex.Message}"; isError = true; }
|
||
|
||
toolResults.Add(new
|
||
{
|
||
role = "tool",
|
||
tool_call_id = tcId,
|
||
content = toolResult
|
||
});
|
||
|
||
await _db.SaveMessage(new MessageRecord
|
||
{
|
||
ChainId = ctx.ChainId, Iteration = iterations,
|
||
Role = "tool", Type = "tool_result",
|
||
Content = toolResult,
|
||
ToolCallId = tcId, ToolName = tcName,
|
||
IsError = isError
|
||
});
|
||
}
|
||
|
||
foreach (var tr in toolResults)
|
||
apiMessages.Add(tr);
|
||
}
|
||
}
|
||
catch
|
||
{
|
||
if (iterations > 0)
|
||
await FinalizeChain(chain, usage, iterations, "error", sw);
|
||
throw;
|
||
}
|
||
|
||
return finalText.Length > 0 ? finalText.ToString() : "(Keine Textantwort)";
|
||
}
|
||
|
||
/// <summary>
|
||
/// Konvertiert eine Anthropic-format Message in das OpenAI-format.
|
||
/// </summary>
|
||
private static object ConvertMessage(object msg)
|
||
{
|
||
var json = JsonSerializer.Serialize(msg);
|
||
var el = JsonSerializer.Deserialize<JsonElement>(json);
|
||
|
||
if (!el.TryGetProperty("role", out var roleProp)) return null;
|
||
var role = roleProp.GetString() ?? "";
|
||
|
||
if (!el.TryGetProperty("content", out var contentProp)) return null;
|
||
|
||
// Content als String
|
||
if (contentProp.ValueKind == JsonValueKind.String)
|
||
{
|
||
var text = contentProp.GetString() ?? "";
|
||
if (string.IsNullOrEmpty(text)) return null;
|
||
return new { role, content = text };
|
||
}
|
||
|
||
// Content als Array (Anthropic-Format mit Blöcken)
|
||
if (contentProp.ValueKind == JsonValueKind.Array)
|
||
{
|
||
var textParts = new StringBuilder();
|
||
var toolCalls = new List<object>();
|
||
var toolResults = new List<object>();
|
||
|
||
foreach (var block in contentProp.EnumerateArray())
|
||
{
|
||
if (!block.TryGetProperty("type", out var typeProp)) continue;
|
||
var blockType = typeProp.GetString() ?? "";
|
||
|
||
if (blockType == "text" && block.TryGetProperty("text", out var textProp))
|
||
{
|
||
textParts.Append(textProp.GetString());
|
||
}
|
||
else if (blockType == "tool_use")
|
||
{
|
||
// Anthropic tool_use → OpenAI tool_calls
|
||
var tcId = block.TryGetProperty("id", out var idProp) ? idProp.GetString() : "";
|
||
var tcName = block.TryGetProperty("name", out var nameProp) ? nameProp.GetString() : "";
|
||
var tcInput = block.TryGetProperty("input", out var inputProp)
|
||
? JsonSerializer.Serialize(inputProp)
|
||
: "{}";
|
||
// thought_signature als eigenes Feld (vom DB-Record direkt in den Block übernommen)
|
||
var tcTs = block.TryGetProperty("thought_signature", out var tsProp2) && tsProp2.ValueKind == JsonValueKind.String
|
||
? tsProp2.GetString() : null;
|
||
|
||
// Gemini erwartet thought_signature in extra_content.google.thought_signature
|
||
if (!string.IsNullOrEmpty(tcTs))
|
||
toolCalls.Add(new { id = tcId, type = "function", function = new { name = tcName, arguments = tcInput }, extra_content = new { google = new { thought_signature = tcTs } } });
|
||
else
|
||
toolCalls.Add(new { id = tcId, type = "function", function = new { name = tcName, arguments = tcInput } });
|
||
}
|
||
else if (blockType == "tool_result")
|
||
{
|
||
// Anthropic tool_result → OpenAI role: "tool"
|
||
var trId = block.TryGetProperty("tool_use_id", out var idProp) ? idProp.GetString() : "";
|
||
var trContent = "";
|
||
if (block.TryGetProperty("content", out var cProp))
|
||
{
|
||
if (cProp.ValueKind == JsonValueKind.String)
|
||
trContent = cProp.GetString() ?? "";
|
||
else if (cProp.ValueKind == JsonValueKind.Array)
|
||
{
|
||
foreach (var item in cProp.EnumerateArray())
|
||
if (item.TryGetProperty("text", out var t)) trContent += t.GetString();
|
||
}
|
||
}
|
||
toolResults.Add(new { role = "tool", tool_call_id = trId, content = trContent });
|
||
}
|
||
}
|
||
|
||
// Assistant-Message mit tool_calls
|
||
if (toolCalls.Count > 0)
|
||
{
|
||
var text = textParts.ToString().Trim();
|
||
return new
|
||
{
|
||
role = "assistant",
|
||
content = string.IsNullOrEmpty(text) ? "" : text,
|
||
tool_calls = toolCalls
|
||
};
|
||
}
|
||
|
||
// Tool-Results → als separate Objekte zurückgeben (werden im Caller verarbeitet)
|
||
if (toolResults.Count > 0)
|
||
return toolResults; // List<object> wird im Aufrufer per OfType<List<object>> erkannt
|
||
|
||
var combined = textParts.ToString().Trim();
|
||
if (string.IsNullOrEmpty(combined)) return null;
|
||
return new { role, content = combined };
|
||
}
|
||
|
||
return null;
|
||
}
|
||
|
||
/// <summary>
|
||
/// Löst Provider-Config auf: Provider-Name, Model-ID, BaseUrl + ApiKey.
|
||
/// Berücksichtigt API-Key-Override und dynamische Gemini-Keys.
|
||
/// </summary>
|
||
private (string provider, string modelId, (string BaseUrl, string ApiKey) config)? ResolveProviderConfig(string modelString, string apiKeyOverride = null)
|
||
{
|
||
var (provider, modelId) = ParseModelString(modelString);
|
||
if (!Providers.TryGetValue(provider, out var providerConfig))
|
||
return null;
|
||
|
||
if (!string.IsNullOrEmpty(apiKeyOverride))
|
||
providerConfig = (providerConfig.BaseUrl, apiKeyOverride);
|
||
|
||
if (provider == "nvidia" && string.IsNullOrEmpty(providerConfig.ApiKey))
|
||
{
|
||
var nvidiaKey = _settings.Get("NvidiaApiKey");
|
||
if (!string.IsNullOrEmpty(nvidiaKey))
|
||
providerConfig = ("https://integrate.api.nvidia.com/v1", nvidiaKey);
|
||
}
|
||
|
||
if (provider == "gemini" && string.IsNullOrEmpty(providerConfig.ApiKey))
|
||
providerConfig = (providerConfig.BaseUrl, _settings.Get("GeminiApiKey"));
|
||
|
||
if (provider == "minimax" && string.IsNullOrEmpty(providerConfig.ApiKey))
|
||
providerConfig = (providerConfig.BaseUrl, _settings.Get("MinimaxApiKey"));
|
||
|
||
return (provider, modelId, providerConfig);
|
||
}
|
||
|
||
/// <summary>
|
||
/// Prüft ob ein Nvidia-Modell Thinking-Mode unterstützt (chat_template_kwargs).
|
||
/// </summary>
|
||
private static bool IsNvidiaThinkingModel(string modelId)
|
||
{
|
||
// Modelle mit Extended-Thinking-Support bei Nvidia
|
||
return modelId.Contains("kimi-k2", StringComparison.OrdinalIgnoreCase)
|
||
|| modelId.Contains("qwq", StringComparison.OrdinalIgnoreCase)
|
||
|| modelId.Contains("deepseek-r1", StringComparison.OrdinalIgnoreCase);
|
||
}
|
||
|
||
/// <summary>
|
||
/// Konvertiert Anthropic-Format Messages in OpenAI-kompatibles Format.
|
||
/// </summary>
|
||
private static List<object> BuildApiMessages(string systemPromptText, List<object> messages)
|
||
{
|
||
var apiMessages = new List<object>();
|
||
if (!string.IsNullOrEmpty(systemPromptText))
|
||
apiMessages.Add(new { role = "system", content = systemPromptText });
|
||
|
||
foreach (var msg in messages)
|
||
{
|
||
var converted = ConvertMessage(msg);
|
||
if (converted == null) continue;
|
||
if (converted is List<object> toolResultList)
|
||
{
|
||
foreach (var tr in toolResultList)
|
||
apiMessages.Add(tr);
|
||
continue;
|
||
}
|
||
apiMessages.Add(converted);
|
||
}
|
||
return apiMessages;
|
||
}
|
||
|
||
private Task FinalizeChain(ChainRecord chain, TokenUsage usage, int iterations, string stopReason, System.Diagnostics.Stopwatch sw)
|
||
=> SseHelper.FinalizeChain(_db, chain, usage, iterations, stopReason, sw);
|
||
|
||
private HttpClient CreateClient(string apiKey)
|
||
{
|
||
var client = _httpFactory.CreateClient();
|
||
if (!string.IsNullOrEmpty(apiKey))
|
||
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", apiKey);
|
||
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
|
||
client.Timeout = TimeSpan.FromMinutes(5);
|
||
return client;
|
||
}
|
||
|
||
// TryWriteSse → SseHelper.cs
|
||
}
|