;; nova-nft-auction.clar
;; Simple auction mechanism
;; CLARITY VERSION: 2
(use-trait nova-trait-non-fungible .nova-trait-non-fungible.nova-trait-non-fungible)
(define-map auctions
uint
{
asset: principal,
token-id: uint,
highest-bid: uint,
highest-bidder: (optional principal),
end-time: uint
}
)
(define-public (place-bid (auction-id uint) (amount uint))
(let (
(auction (unwrap! (map-get? auctions auction-id) (err u404)))
)
(asserts! (> amount (get highest-bid auction)) (err u100))
;; Transfer logic
(map-set auctions auction-id (merge auction {highest-bid: amount, highest-bidder: (some tx-sender)}))
(ok true)
)
)