feat: persist settings and enrich conversation context

src/database/client.ts

@@ -3,7 +3,7 @@ import type { Config } from '../config/index.js';
 import path from 'path';
 import fs from 'fs';
 
-export function createDatabase(config: Config): Database.Database {
+export function createDatabase(config: Pick<Config, 'database'>): Database.Database {
   const dbPath = config.database.path === ':memory:'
     ? ':memory:'
     : path.resolve(process.cwd(), config.database.path);
@@ -142,6 +142,56 @@ export function runMigrations(db: Database.Database): void {
         FOREIGN KEY (sent_message_id) REFERENCES sent_messages(id)
       );
     `),
+    () => {
+      addColumnIfNotExists(db, 'processed_posts', 'post_url', 'TEXT');
+      addColumnIfNotExists(db, 'activity_log', 'post_title', 'TEXT');
+      addColumnIfNotExists(db, 'activity_log', 'post_url', 'TEXT');
+      db.exec(`
+        UPDATE processed_posts
+        SET post_url = 'https://www.reddit.com/r/' || subreddit || '/comments/' || id || '/'
+        WHERE post_url IS NULL;
+
+        UPDATE activity_log
+        SET
+          post_title = (
+            SELECT pp.title
+            FROM sent_messages sm
+            JOIN processed_posts pp ON pp.id = sm.post_id
+            WHERE sm.recipient = activity_log.recipient COLLATE NOCASE
+              AND sm.sent_at <= activity_log.timestamp
+            ORDER BY sm.sent_at DESC
+            LIMIT 1
+          ),
+          post_url = (
+            SELECT pp.post_url
+            FROM sent_messages sm
+            JOIN processed_posts pp ON pp.id = sm.post_id
+            WHERE sm.recipient = activity_log.recipient COLLATE NOCASE
+              AND sm.sent_at <= activity_log.timestamp
+            ORDER BY sm.sent_at DESC
+            LIMIT 1
+          ),
+          image_url = COALESCE(image_url, (
+            SELECT pp.image_url
+            FROM sent_messages sm
+            JOIN processed_posts pp ON pp.id = sm.post_id
+            WHERE sm.recipient = activity_log.recipient COLLATE NOCASE
+              AND sm.sent_at <= activity_log.timestamp
+            ORDER BY sm.sent_at DESC
+            LIMIT 1
+          ))
+        WHERE type = 'sent'
+          AND recipient IS NOT NULL
+          AND post_url IS NULL;
+      `);
+    },
+    () => db.exec(`
+      CREATE TABLE IF NOT EXISTS app_config (
+        id INTEGER PRIMARY KEY CHECK(id = 1),
+        config_json TEXT NOT NULL,
+        updated_at INTEGER NOT NULL
+      );
+    `),
   ];
 
   let currentVersion = db.pragma('user_version', { simple: true }) as number;