(use-trait ft-trait 'SP3FBR2AGK5H9QBDH3EEN6DF8EK8JY7RX8QJ5SVTE.sip-010-trait-ft-standard.sip-010-trait)
(define-constant ONE_8 u100000000) ;; 8 decimal places
(define-constant ERR-NOT-AUTHORIZED (err u1000))
(define-constant ERR-PAUSED (err u1001))
(define-constant ERR-INVALID-BALANCE (err u1002))
(define-constant ERR-INVALID-TOKEN (err u2026))
(define-constant ERR-ZERO-AMOUNT (err u2005))
(define-data-var contract-owner principal tx-sender)
(define-map approved-contracts principal bool)
(define-data-var paused bool false)
;; read-only calls
(define-read-only (is-paused)
(var-get paused)
)
(define-read-only (get-contract-owner)
(ok (var-get contract-owner))
)
(define-public (get-balance (the-token <ft-trait>))
(begin
(contract-call? the-token get-balance (as-contract tx-sender))
)
)
(define-public (stx-balance)
(begin
(ok (stx-get-balance (as-contract tx-sender)))
)
)
;; governance calls
(define-public (set-contract-owner (owner principal))
(begin
(try! (check-is-owner))
(ok (var-set contract-owner owner))
)
)
(define-public (set-approved-contract (the-contract principal) (approved bool))
(begin
(try! (check-is-owner))
(ok (map-set approved-contracts the-contract approved))
)
)
(define-public (pause (new-paused bool))
(begin
(try! (check-is-owner))
(ok (var-set paused new-paused))
)
)
;; priviliged calls
(define-public (transfer-ft (the-token <ft-trait>) (amount uint) (recipient principal))
(begin
(asserts! (not (is-paused)) ERR-PAUSED)
(asserts! (and (or (is-ok (check-is-approved)) (is-ok (check-is-owner)))) ERR-NOT-AUTHORIZED)
(as-contract (contract-call? the-token transfer amount tx-sender recipient none))
)
)
(define-public (transfer-stx (amount uint) (recipient principal))
(begin
(asserts! (not (is-paused)) ERR-PAUSED)
(asserts! (or (is-ok (check-is-approved)) (is-ok (check-is-owner))) ERR-NOT-AUTHORIZED)
(as-contract (stx-transfer? amount tx-sender recipient))
)
)
;; private calls
(define-private (check-is-approved)
(ok (asserts! (default-to false (map-get? approved-contracts tx-sender)) ERR-NOT-AUTHORIZED))
)
(define-private (check-is-owner)
(ok (asserts! (is-eq tx-sender (var-get contract-owner)) ERR-NOT-AUTHORIZED))
)