package sqltypes

import (
	"database/sql/driver"
	"errors"
	"git.aiterp.net/stufflog3/stufflog3-api/internal/models"
	"time"
)

type NullDate struct {
	Date  models.Date
	Valid bool
}

func (n *NullDate) Scan(value interface{}) error {
	if value == nil {
		n.Valid = false
		return nil
	}

	switch value := value.(type) {
	case string:
		date, err := models.ParseDate(value)
		if err != nil {
			return err
		}

		n.Date = date
		n.Valid = true
	case time.Time:
		n.Date = models.Date{value.Year(), int(value.Month()), value.Day()}
		n.Valid = true
	default:
		return errors.New("invalid type")
	}

	return nil
}

func (n NullDate) Value() (driver.Value, error) {
	if !n.Valid {
		return nil, nil
	}

	return n.Date.String(), nil
}