From 284e35b0eb57a2060fde5729ab5ffc02b44255bc Mon Sep 17 00:00:00 2001
From: "borja (aider)" <borja@brobert.net>
Date: Mon, 31 Mar 2025 14:02:58 +0200
Subject: [PATCH] feat: update database schema for user tracking

---
 src/db.ts | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/db.ts b/src/db.ts
index b657162..c1c0482 100644
--- a/src/db.ts
+++ b/src/db.ts
@@ -11,7 +11,9 @@ export function initializeDatabase() {
       due_date TIMESTAMP NULL,
       completed BOOLEAN DEFAULT FALSE,
       completed_at TIMESTAMP NULL,
-      group_id TEXT NOT NULL
+      group_id TEXT NULL,
+      created_by TEXT NOT NULL,
+      FOREIGN KEY (created_by) REFERENCES users(id)
     );
     
     CREATE TABLE IF NOT EXISTS task_assignments (
@@ -24,10 +26,9 @@ export function initializeDatabase() {
     );
     
     CREATE TABLE IF NOT EXISTS users (
-      phone_number TEXT PRIMARY KEY,
-      wa_id TEXT NOT NULL, -- WhatsApp's @s.whatsapp.net ID
-      name TEXT,
-      last_seen TIMESTAMP
+      id TEXT PRIMARY KEY, -- WhatsApp user ID (normalized phone number without +)
+      first_seen TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+      last_seen TIMESTAMP DEFAULT CURRENT_TIMESTAMP
     );
     
     CREATE TABLE IF NOT EXISTS groups (