grain

;; Halal Asset Registry - Grain
;; Registry for grain

(define-data-var total-grain-13 uint u0)
(define-map grain-13-registry principal uint)

(define-public (register-grain-13 (amount uint))
    (begin
        (map-set grain-13-registry tx-sender amount)
        (var-set total-grain-13 (+ (var-get total-grain-13) amount))
        (ok true)
    )
)

(define-read-only (get-grain-13-amount (owner principal))
    (default-to u0 (map-get? grain-13-registry owner))
)