;; vlqstx
(define-fungible-token vlqstx)
(define-constant err-unauthorised (err u3000))
(define-data-var token-name (string-ascii 32) "vlqstx")
(define-data-var token-symbol (string-ascii 10) "vlqstx")
(define-data-var token-uri (optional (string-utf8 256)) (some u"https://cdn.alexlab.co/metadata/vlqstx.json"))
(define-data-var token-decimals uint u6)
;; governance functions
(define-public (set-name (new-name (string-ascii 32)))
(begin
(try! (is-dao-or-extension))
(ok (var-set token-name new-name))))
(define-public (set-symbol (new-symbol (string-ascii 10)))
(begin
(try! (is-dao-or-extension))
(ok (var-set token-symbol new-symbol))
)
)
(define-public (set-decimals (new-decimals uint))
(begin
(try! (is-dao-or-extension))
(ok (var-set token-decimals new-decimals))))
(define-public (set-token-uri (new-uri (optional (string-utf8 256))))
(begin
(try! (is-dao-or-extension))
(ok (var-set token-uri new-uri))))
;; public functions
(define-public (transfer (amount uint) (sender principal) (recipient principal) (memo (optional (buff 2048))))
(begin
(asserts! (or (is-eq tx-sender sender) (is-eq contract-caller sender)) err-unauthorised)
(try! (ft-transfer? vlqstx amount sender recipient))
(print { type: "transfer", amount: amount, sender: sender, recipient: recipient, memo: memo })
(ok true)))
(define-public (mint (amount uint) (recipient principal))
(begin
(asserts! (or (is-eq tx-sender recipient) (is-eq contract-caller recipient)) err-unauthorised)
(try! (ft-mint? vlqstx (get-tokens-to-shares amount) recipient))
(contract-call? .token-lqstx transfer amount recipient (as-contract tx-sender) none)))
(define-public (burn (amount uint) (sender principal))
(begin
(asserts! (or (is-eq tx-sender sender) (is-eq contract-caller sender)) err-unauthorised)
(as-contract (try! (contract-call? .token-lqstx transfer (get-shares-to-tokens amount) tx-sender sender none)))
(ft-burn? vlqstx amount sender)))
;; read-only functions
(define-read-only (is-dao-or-extension)
(ok (asserts! (or (is-eq tx-sender .lisa-dao) (contract-call? .lisa-dao is-extension contract-caller)) err-unauthorised)))
(define-read-only (get-name)
(ok (var-get token-name)))
(define-read-only (get-symbol)
(ok (var-get token-symbol)))
(define-read-only (get-token-uri)
(ok (var-get token-uri)))
(define-read-only (get-decimals)
(ok (var-get token-decimals)))
(define-read-only (get-balance (who principal))
(ok (ft-get-balance vlqstx who)))
(define-read-only (get-total-supply)
(ok (ft-get-supply vlqstx)))
(define-read-only (get-share (who principal))
(ok (get-shares-to-tokens (unwrap-panic (get-balance who)))))
(define-read-only (get-total-shares)
(contract-call? .token-lqstx get-balance (as-contract tx-sender)))
(define-read-only (get-tokens-to-shares (amount uint))
(if (is-eq (get-total-supply) (ok u0))
amount
(/ (* amount (unwrap-panic (get-total-supply))) (unwrap-panic (get-total-shares)))))
(define-read-only (get-shares-to-tokens (shares uint))
(if (is-eq (get-total-supply) (ok u0))
shares
(/ (* shares (unwrap-panic (get-total-shares))) (unwrap-panic (get-total-supply)))))
;; private functions