usda-token-test

;; usda-token

;;;;;;;;;;;;;;;;;;;;; SIP 010 ;;;;;;;;;;;;;;;;;;;;;;
(impl-trait 'SP3FBR2AGK5H9QBDH3EEN6DF8EK8JY7RX8QJ5SVTE.sip-010-trait-ft-standard.sip-010-trait)


;; Defines the USDA Stablecoin according to the SIP-010 Standard
(define-fungible-token usda)

(define-data-var token-uri (string-utf8 256) u"")

;; errors
(define-constant err-unauthorized-transfer (err u1))


;; ---------------------------------------------------------
;; SIP-10 Functions
;; ---------------------------------------------------------

(define-read-only (get-total-supply)
  (ok (ft-get-supply usda))
)

(define-read-only (get-name)
  (ok "USDA")
)

(define-read-only (get-symbol)
  (ok "USDA")
)

(define-read-only (get-decimals)
  (ok u6)
)

(define-read-only (get-balance (account principal))
  (ok (ft-get-balance usda account))
)

(define-read-only (get-balance-simple (account principal))
  (ft-get-balance usda account)
)


(define-read-only (get-token-uri)
  (ok (some (var-get token-uri)))
)

(define-public (transfer (amount uint) (sender principal) (recipient principal) (memo (optional (buff 34))))
  (begin
    (asserts! (is-eq tx-sender sender) err-unauthorized-transfer)

    (match (ft-transfer? usda amount sender recipient)
      response (begin
        (print memo)
        (ok response)
      )
      error (err error)
    )
  )
)

(define-public (mint (amount uint) (recipient principal))
  (begin
    (ft-mint? usda amount recipient)
  )
)

(define-public (burn (amount uint))
  (begin
    (ft-burn? usda amount tx-sender)
  )
)