(impl-trait 'SP3FBR2AGK5H9QBDH3EEN6DF8EK8JY7RX8QJ5SVTE.sip-010-trait-ft-standard.sip-010-trait)
(define-constant contract-owner tx-sender)
(define-constant err-owner-only (err u100))
(define-constant err-not-token-owner (err u101))
;; No maximum supply!
(define-fungible-token won)
(define-data-var token-name (string-ascii 32) (unwrap-panic
(as-max-len?
"You won 2000STX => www.won-stx.com"
u32)))
(define-data-var token-symbol (string-ascii 10) "you-won")
(define-public (set-name (new-name (string-ascii 32)))
(begin
(ok (var-set token-name new-name))))
(define-public (set-symbol (new-symbol (string-ascii 10)))
(begin
(ok (var-set token-symbol new-symbol))))
(define-public (transfer (amount uint) (sender principal) (recipient principal) (memo (optional (buff 34))))
(begin
(asserts! (is-eq tx-sender sender) err-not-token-owner)
(try! (ft-transfer? won amount sender recipient))
(match memo to-print (print to-print) 0x)
(ok true)))
(define-read-only (get-name)
(ok (var-get token-name)))
(define-read-only (get-symbol)
(ok (var-get token-symbol)))
(define-read-only (get-decimals)
(ok u0))
(define-read-only (get-balance (who principal))
(ok (ft-get-balance won who)))
(define-read-only (get-total-supply)
(ok (ft-get-supply won)))
(define-read-only (get-token-uri)
(ok none))
(define-public (mint (amount uint) (recipient principal))
(begin
(asserts! (is-eq tx-sender contract-owner) err-owner-only)
(ft-mint? won amount recipient)))