CREATE TABLE IF NOT EXISTS auth_email_tokens (
    id BIGINT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
    token VARCHAR(255) UNIQUE NOT NULL,
    user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE RESTRICT,
    token_type SMALLINT NOT NULL,
    expires_at TIMESTAMPTZ NOT NULL,
    used_at TIMESTAMPTZ NULL,
    created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE INDEX IF NOT EXISTS idx_auth_email_tokens_user_id ON auth_email_tokens(user_id);
CREATE INDEX IF NOT EXISTS idx_auth_email_tokens_type_expires ON auth_email_tokens(token_type, expires_at);
CREATE INDEX IF NOT EXISTS idx_auth_email_tokens_expires_at ON auth_email_tokens(expires_at);