package calendar

import (
	"github.com/gin-gonic/gin"
	"gorm.io/gorm"
	"kumoly.io/kumoly/app/auth"
	"kumoly.io/kumoly/app/errors"
)

func HasCalAccess(c *gin.Context, cal *Calendar, cid string) error {
	err := db.First(cal, "id = ?", cid).Error
	if err != nil {
		return errors.NewError(404, err)
	}
	if cal.GroupName == "" {
		return nil
	}
	if !auth.ACHas(c, auth.ADMIN, auth.SYSTEM, cal.GroupName) {
		return errors.ErrorForbidden
	}
	return nil
}

func HasEventAccess(c *gin.Context, e *Event, cid string) error {
	err := db.First(e, "id = ?", cid).Error
	if err != nil {
		return errors.NewError(404, err)
	}
	if e.GroupName == "" {
		return nil
	}
	if !auth.ACHas(c, auth.ADMIN, auth.SYSTEM, e.GroupName) {
		return errors.ErrorForbidden
	}
	return nil
}

func ChangeCalGroup(cal_id, to string) error {
	return db.Transaction(func(tx *gorm.DB) error {
		affected := tx.Exec(`update events set group_id = (
			select id from groups where name = ?
		) where calendar_id = ?`, to, cal_id).RowsAffected
		if affected == 0 {
			return errors.ErrorNotFound
		}
		tx.Exec(`update events set group_id = (
			select id from groups where name = ?
		) where calendar_id = ?`, to, cal_id)
		return nil
	})
}