CREATE TABLE IF NOT EXISTS time_error_notification_state (
    employee_id INT NOT NULL,
    cycle_started_on DATE NOT NULL,
    first_error_date DATE NOT NULL,
    last_notification_stage VARCHAR(50) DEFAULT NULL,
    last_notification_sent_at DATETIME DEFAULT NULL,
    employee_day_1_sent_at DATETIME DEFAULT NULL,
    employee_day_3_sent_at DATETIME DEFAULT NULL,
    admin_day_7_sent_at DATETIME DEFAULT NULL,
    updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    PRIMARY KEY (employee_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

CREATE TABLE IF NOT EXISTS time_error_notifications (
    id INT NOT NULL AUTO_INCREMENT,
    employee_id INT NOT NULL,
    cycle_started_on DATE NOT NULL,
    notification_stage VARCHAR(50) NOT NULL,
    recipient_email VARCHAR(255) NOT NULL,
    sent_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    PRIMARY KEY (id),
    UNIQUE KEY uniq_time_error_notification (employee_id, cycle_started_on, notification_stage, recipient_email)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;