Agents: CRUD, DB table, session binding, replace model picker

- agents table with name, avatar, description, model, persona, instructions, soft-delete - AgentEndpoint (GET/POST/PUT/DELETE /api/agents) - sessions + chains now reference agent_id - ChatEndpoint resolves agent from session (no agent = no chat) - system prompt built from agent persona + instructions - frontend: agent editor with avatar upload, agent cards on dashboard - session: agent dropdown replaces model picker, choice persisted
2026-02-26 20:59:19 +01:00
1 parent 0cd2d51d32
commit 449c872296
@@ -0,0 +1,87 @@
+using System.Text.Json;
+using System.Threading.Tasks;
+using Gott.Models;
+using Gott.Services;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Routing;
+
+namespace Gott.Endpoints;
+
+public static class AgentEndpoint
+{
+    public static void MapAgentEndpoints(this IEndpointRouteBuilder app)
+    {
+        app.MapGet("/api/agents", HandleList);
+        app.MapGet("/api/agents/{agentId}", HandleGet);
+        app.MapPost("/api/agents", HandleCreate);
+        app.MapPut("/api/agents/{agentId}", HandleUpdate);
+        app.MapDelete("/api/agents/{agentId}", HandleDelete);
+    }
+
+    private static async Task HandleList(HttpContext ctx, DatabaseService db)
+    {
+        var agents = await db.GetAgents();
+        await ctx.Response.WriteAsJsonAsync(agents);
+    }
+
+    private static async Task HandleGet(HttpContext ctx, DatabaseService db)
+    {
+        var agentId = ctx.Request.RouteValues["agentId"]?.ToString();
+        if (string.IsNullOrEmpty(agentId)) { ctx.Response.StatusCode = 400; return; }
+
+        var agent = await db.GetAgent(agentId);
+        if (agent == null) { ctx.Response.StatusCode = 404; return; }
+
+        await ctx.Response.WriteAsJsonAsync(agent);
+    }
+
+    private static async Task HandleCreate(HttpContext ctx, DatabaseService db)
+    {
+        var body = await JsonSerializer.DeserializeAsync<JsonElement>(ctx.Request.Body);
+
+        var agent = new AgentRecord
+        {
+            Name = body.TryGetProperty("name", out var n) ? n.GetString() ?? "Neuer Agent" : "Neuer Agent",
+            Avatar = body.TryGetProperty("avatar", out var av) ? av.GetString() : null,
+            Description = body.TryGetProperty("description", out var d) ? d.GetString() : null,
+            Model = body.TryGetProperty("model", out var m) ? m.GetString() ?? "sonnet" : "sonnet",
+            Persona = body.TryGetProperty("persona", out var p) ? p.GetString() : null,
+            Instructions = body.TryGetProperty("instructions", out var i) ? i.GetString() : null
+        };
+
+        agent = await db.CreateAgent(agent);
+        await ctx.Response.WriteAsJsonAsync(agent);
+    }
+
+    private static async Task HandleUpdate(HttpContext ctx, DatabaseService db)
+    {
+        var agentId = ctx.Request.RouteValues["agentId"]?.ToString();
+        if (string.IsNullOrEmpty(agentId)) { ctx.Response.StatusCode = 400; return; }
+
+        var agent = await db.GetAgent(agentId);
+        if (agent == null) { ctx.Response.StatusCode = 404; return; }
+
+        var body = await JsonSerializer.DeserializeAsync<JsonElement>(ctx.Request.Body);
+
+        if (body.TryGetProperty("name", out var n)) agent.Name = n.GetString();
+        if (body.TryGetProperty("avatar", out var av)) agent.Avatar = av.GetString();
+        if (body.TryGetProperty("description", out var d)) agent.Description = d.GetString();
+        if (body.TryGetProperty("model", out var m)) agent.Model = m.GetString();
+        if (body.TryGetProperty("persona", out var p)) agent.Persona = p.GetString();
+        if (body.TryGetProperty("instructions", out var i)) agent.Instructions = i.GetString();
+
+        await db.UpdateAgent(agent);
+        agent = await db.GetAgent(agentId);
+        await ctx.Response.WriteAsJsonAsync(agent);
+    }
+
+    private static async Task HandleDelete(HttpContext ctx, DatabaseService db)
+    {
+        var agentId = ctx.Request.RouteValues["agentId"]?.ToString();
+        if (string.IsNullOrEmpty(agentId)) { ctx.Response.StatusCode = 400; return; }
+
+        await db.DeleteAgent(agentId);
+        ctx.Response.StatusCode = 204;
+    }
+}