Select Data from Previous and Next Results In One Query : Convert From Sql Query To Eloquent Laravel

Question

I'm building and prev and next link in a page, I wish to achieve this in one query. I have the working Raw Sql, I can't seem to be able to convert to Eloquent Laravel. I want to have the multiple model options like so: prev() , next(), prevAndNext() and prevAndNextId() .

from this:

public function next(){
        return self::select('gift_card_id' , 'gift_card_slug')->where('gift_card_id', '>', $this->gift_card_id)->orderBy('gift_card_id','asc')->first();
}
public function previous(){
    return self::select('gift_card_id' , 'gift_card_slug')->where('gift_card_id', '<', $this->gift_card_id)->orderBy('gift_card_id','desc')->first();
}

to this : prevAndNext()

select 
gift_card_id , gift_card_slug
from gift_cards 
where ( 
`gift_card_id` = IFNULL((select min(`gift_card_id`) from gift_cards where `gift_card_id` > 1343),null) 
or 
`gift_card_id` = IFNULL((select max(`gift_card_id`) from gift_cards where `gift_card_id` < 1343),null) 
)

Other aproch just to get the ID : prevAndNextId()

SELECT 
IFNULL(
(SELECT gift_card_id FROM gift_cards WHERE gift_card_id < 1345 ORDER BY gift_card_id DESC LIMIT 1),null) as previous, 
IFNULL(
(SELECT gift_card_id FROM gift_cards WHERE gift_card_id > 1345 ORDER BY gift_card_id ASC LIMIT 1),null) as next