/**
 * Adds `chat_messages`, which holds the messages of the site-wide chat.
 *
 * @module
 */

import type { DatabaseSync } from "node:sqlite";

/**
 * Run once by `runMigrations`. A database made from schema.sql already has the
 * table.
 */
export function up(db: DatabaseSync): void {
  db.exec(`CREATE TABLE IF NOT EXISTS chat_messages (
    id         TEXT NOT NULL PRIMARY KEY,
    user_id    TEXT NOT NULL,
    body       TEXT NOT NULL,
    created_at TEXT NOT NULL,
    updated_at TEXT,
    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
  );`);

  db.exec(
    `CREATE INDEX IF NOT EXISTS idx_chat_messages_created ON chat_messages(created_at);`,
  );
}