Add provider gateway and collaboration records

AgentCompany-New/src/main/services/chat-service.ts

@@ -14,6 +14,7 @@ export class ChatService {
     const body = input.bodyMd.trim();
     if (!body) throw new Error("Message body is required.");
     const id = createId("msg");
+    const threadId = input.threadId ?? createId("thread");
     const now = new Date().toISOString();
     this.db.prepare(`
       insert into chat_messages(
@@ -23,7 +24,7 @@ export class ChatService {
       id,
       input.orgId,
       input.spaceId,
-      input.threadId,
+      threadId,
       input.senderType,
       input.senderId,
       body,
@@ -31,6 +32,25 @@ export class ChatService {
       null,
       null,
     );
+    if (!input.threadId) {
+      this.db.prepare(`
+        insert into chat_threads(id, org_id, space_id, root_message_id, title, state, created_at, updated_at)
+        values (?, ?, ?, ?, ?, ?, ?, ?)
+      `).run(threadId, input.orgId, input.spaceId, id, createThreadTitle(body), "open", now, now);
+    } else {
+      this.db.prepare("update chat_threads set updated_at = ? where id = ? and org_id = ?").run(now, input.threadId, input.orgId);
+    }
+    this.recordMentions(id, body);
+    this.recordSlashInvocation(id, body, now);
+    this.recordAttachments(input.orgId, id, input.attachmentFileIds ?? []);
+    if (input.senderId) {
+      this.db.prepare(`
+        insert into chat_presence(principal_type, principal_id, status, status_text, last_seen_at)
+        values (?, ?, ?, ?, ?)
+        on conflict(principal_type, principal_id)
+        do update set status = excluded.status, status_text = excluded.status_text, last_seen_at = excluded.last_seen_at
+      `).run(input.senderType, input.senderId, "active", "", now);
+    }
     this.audit.record({
       orgId: input.orgId,
       entityType: "chat_message",
@@ -38,8 +58,62 @@ export class ChatService {
       actorType: input.senderType,
       actorId: input.senderId,
       action: "sent",
-      payload: { spaceId: input.spaceId, threadId: input.threadId },
+      payload: { spaceId: input.spaceId, threadId, attachmentCount: input.attachmentFileIds?.length ?? 0 },
     });
     return id;
   }
+
+  private recordMentions(messageId: string, body: string): void {
+    const seen = new Set<string>();
+    for (const match of body.matchAll(/(^|\s)@([A-Za-z][A-Za-z0-9_-]{1,63})/g)) {
+      const target = match[2];
+      const offsetStart = match.index + match[1].length;
+      const key = `${target}:${offsetStart}`;
+      if (seen.has(key)) continue;
+      seen.add(key);
+      this.db.prepare(`
+        insert into chat_mentions(message_id, target_type, target_id, offset_start, offset_end)
+        values (?, ?, ?, ?, ?)
+      `).run(messageId, "alias", target, offsetStart, offsetStart + target.length + 1);
+    }
+  }
+
+  private recordSlashInvocation(messageId: string, body: string, now: string): void {
+    const match = body.match(/^\/([a-z][a-z0-9_-]*)(?:\s+([\s\S]*))?$/i);
+    if (!match) return;
+    const command = match[1].toLowerCase();
+    if (!ALLOWED_SLASH_COMMANDS.has(command)) throw new Error(`Slash command /${command} is unavailable.`);
+    this.db.prepare(`
+      insert into chat_slash_invocations(id, message_id, command, args_json, result_ref, created_at)
+      values (?, ?, ?, ?, ?, ?)
+    `).run(createId("slash"), messageId, command, JSON.stringify({ raw: match[2] ?? "" }), null, now);
+  }
+
+  private recordAttachments(orgId: string, messageId: string, fileIds: string[]): void {
+    for (const fileId of fileIds) {
+      const file = this.db.prepare("select sha256 from file_objects where id = ? and org_id = ?")
+        .get(fileId, orgId) as { sha256: string } | undefined;
+      if (!file) throw new Error("Attachment file was not found.");
+      this.db.prepare(`
+        insert into chat_attachments(message_id, file_id, transfer_type, checksum, preview_key)
+        values (?, ?, ?, ?, ?)
+      `).run(messageId, fileId, "handoff", file.sha256, null);
+    }
+  }
+}
+
+const ALLOWED_SLASH_COMMANDS = new Set([
+  "agent",
+  "handoff",
+  "approve",
+  "deny",
+  "skill",
+  "runbook",
+  "file",
+  "escalate",
+]);
+
+function createThreadTitle(body: string): string {
+  const firstLine = body.split(/\r?\n/, 1)[0].trim();
+  return firstLine.length > 80 ? `${firstLine.slice(0, 77)}...` : firstLine;
 }