Agent support for @agent default agent inside workspace chat (#1093)

V1 of agent support via built-in `@agent` that can be invoked alongside normal workspace RAG chat.

server/models/workspaceAgentInvocation.js

@@ -0,0 +1,95 @@
+const prisma = require("../utils/prisma");
+const { v4: uuidv4 } = require("uuid");
+
+const WorkspaceAgentInvocation = {
+  // returns array of strings with their @ handle.
+  parseAgents: function (promptString) {
+    return promptString.split(/\s+/).filter((v) => v.startsWith("@"));
+  },
+
+  close: async function (uuid) {
+    if (!uuid) return;
+    try {
+      await prisma.workspace_agent_invocations.update({
+        where: { uuid: String(uuid) },
+        data: { closed: true },
+      });
+    } catch {}
+  },
+
+  new: async function ({ prompt, workspace, user = null, thread = null }) {
+    try {
+      const invocation = await prisma.workspace_agent_invocations.create({
+        data: {
+          uuid: uuidv4(),
+          workspace_id: workspace.id,
+          prompt: String(prompt),
+          user_id: user?.id,
+          thread_id: thread?.id,
+        },
+      });
+
+      return { invocation, message: null };
+    } catch (error) {
+      console.error(error.message);
+      return { invocation: null, message: error.message };
+    }
+  },
+
+  get: async function (clause = {}) {
+    try {
+      const invocation = await prisma.workspace_agent_invocations.findFirst({
+        where: clause,
+      });
+
+      return invocation || null;
+    } catch (error) {
+      console.error(error.message);
+      return null;
+    }
+  },
+
+  getWithWorkspace: async function (clause = {}) {
+    try {
+      const invocation = await prisma.workspace_agent_invocations.findFirst({
+        where: clause,
+        include: {
+          workspace: true,
+        },
+      });
+
+      return invocation || null;
+    } catch (error) {
+      console.error(error.message);
+      return null;
+    }
+  },
+
+  delete: async function (clause = {}) {
+    try {
+      await prisma.workspace_agent_invocations.delete({
+        where: clause,
+      });
+      return true;
+    } catch (error) {
+      console.error(error.message);
+      return false;
+    }
+  },
+
+  where: async function (clause = {}, limit = null, orderBy = null) {
+    try {
+      const results = await prisma.workspace_agent_invocations.findMany({
+        where: clause,
+        ...(limit !== null ? { take: limit } : {}),
+        ...(orderBy !== null ? { orderBy } : {}),
+      });
+      return results;
+    } catch (error) {
+      console.error(error.message);
+      return [];
+    }
+  },
+};
+
+module.exports = { WorkspaceAgentInvocation };