(use-trait ft-trait .trait-sip-010.sip-010-trait)
(define-constant err-not-authorized (err u1000))
(define-data-var contract-owner principal tx-sender)
(define-data-var sponsored-fee uint u0)
(define-read-only (get-sponsored-fee)
(var-get sponsored-fee)
)
(define-public (set-sponsored-fee (fee uint))
(begin
(try! (check-is-owner))
(ok (var-set sponsored-fee fee))))
(define-public (register (launch-id uint) (payment-amount uint) (payment-token-trait <ft-trait>))
(begin
(try! (pay-to-sponsor))
(contract-call? .alex-launchpad-v1-5 register launch-id payment-amount payment-token-trait)))
(define-private (check-is-owner)
(ok (asserts! (is-eq tx-sender (var-get contract-owner)) err-not-authorized))
)
(define-private (pay-to-sponsor)
(match tx-sponsor? sponsor (contract-call? .token-abtc transfer-fixed (var-get sponsored-fee) tx-sender sponsor none) (ok false))
)