CREATE TABLE IF NOT EXISTS users (
    id SERIAL PRIMARY KEY,
    email VARCHAR(255) NOT NULL UNIQUE,
    hashed_password VARCHAR(255) NOT NULL,
    failed_attempts INTEGER NOT NULL DEFAULT 0,
    is_locked BOOLEAN NOT NULL DEFAULT FALSE,
    locked_at TIMESTAMP,
    last_failed_at TIMESTAMP,
    is_active BOOLEAN NOT NULL DEFAULT TRUE,
    is_superuser BOOLEAN NOT NULL DEFAULT FALSE,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE OR REPLACE FUNCTION update_updated_at_column()
RETURNS TRIGGER AS $$
BEGIN
   NEW.updated_at = NOW();
   RETURN NEW;
END;
$$ language 'plpgsql';

CREATE TRIGGER update_users_updated_at
BEFORE UPDATE ON users
FOR EACH ROW
EXECUTE FUNCTION update_updated_at_column();

CREATE TABLE IF NOT EXISTS otps (
    id SERIAL PRIMARY KEY,
    email VARCHAR(255) NOT NULL UNIQUE,
    otp VARCHAR(6) NOT NULL,
    created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP
);