DROP TABLE IF EXISTS messages;
DROP TABLE IF EXISTS users;

CREATE TABLE users (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  username VARCHAR(50) NOT NULL,
  password VARCHAR(255) NOT NULL,
  avatar VARCHAR(50)
);

CREATE TABLE messages (
  id VARCHAR(36) PRIMARY KEY NOT NULL,
  userId INTEGER NOT NULL,
  message TEXT NOT NULL,
  timestamp DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL,
  FOREIGN KEY (userId) REFERENCES users(id)
);