cat-in-a-dogs-world

;;  ---------------------------------------------------------
;; SIP-10 Fungible Token Contract | Created on: stx.city/deploy
;; mew mew mew
;; ---------------------------------------------------------

;; Errors
(define-constant ERR-UNAUTHORIZED u401)
(define-constant ERR-NOT-OWNER u402)
(define-constant ERR-INVALID-PARAMETERS u403)
(define-constant ERR-NOT-ENOUGH-FUND u101)

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

;; Constants
(define-constant MAXSUPPLY u555555555)

;; Variables
(define-fungible-token MEW MAXSUPPLY)
(define-data-var contract-owner principal tx-sender)



;; SIP-10 Functions
(define-public (transfer (amount uint) (from principal) (to principal) (memo (optional (buff 34))))
(begin
	(asserts! (is-eq from tx-sender)
	(err ERR-UNAUTHORIZED))
	;; Perform the token transfer
	(ft-transfer? MEW amount from to)
)
)


;; DEFINE METADATA
(define-data-var token-uri (optional (string-utf8 256)) (some u"https://gaia.hiro.so/hub/1Gwh5gnZBHswL7mCBGV4ngRcjnJuDMpsfk/cat-in-a-dogs-world-0"))
(define-data-var token-name (string-ascii 32) "cat in a dogs world")
(define-data-var token-symbol (string-ascii 32) "MEW")
(define-data-var token-decimals uint u0)

(define-public
(set-metadata
(uri (optional (string-utf8 256)))
(name (string-ascii 32))
(symbol (string-ascii 32))
(decimals uint))
(begin
	(asserts! (is-eq tx-sender (var-get contract-owner)) (err ERR-UNAUTHORIZED))
	(asserts!
	(and
	(is-some uri)
	(> (len name) u0)
	(> (len symbol) u0)
	(<= decimals u10))
	(err ERR-INVALID-PARAMETERS))
	(var-set token-uri uri)
	(var-set token-name name)
	(var-set token-symbol symbol)
	(var-set token-decimals decimals)
	(print
	{
	notification: "token-metadata-update",
	payload: {
	token-class: "ft",
	contract-id: (as-contract tx-sender)
	}
	})
	(ok true)))
	
	(define-read-only (get-balance (owner principal))
	(ok (ft-get-balance MEW owner))
)
(define-read-only (get-total-supply)
(ok (ft-get-supply MEW))
)

(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 (var-get token-decimals))
)

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

;; transfer ownership
(define-public (transfer-ownership (new-owner principal))
(begin
	;; Checks if the sender is the current owner
	(if (is-eq tx-sender (var-get contract-owner))
	(begin
		;; Sets the new owner
		(var-set contract-owner new-owner)
		;; Returns success message
		(ok "Ownership transferred successfully"))
		;; Error if the sender is not the owner
		(err ERR-NOT-OWNER)))
	)
	
	
	;; ---------------------------------------------------------
	;; Utility Functions
	;; ---------------------------------------------------------
	(define-public (send-many (recipients (list 200 { to: principal, amount: uint, memo: (optional (buff 34)) })))
	(fold check-err (map send-token recipients) (ok true))
)

(define-private (check-err (result (response bool uint)) (prior (response bool uint)))
	(match prior ok-value result err-value (err err-value))
)

(define-private (send-token (recipient { to: principal, amount: uint, memo: (optional (buff 34)) }))
	(send-token-with-memo (get amount recipient) (get to recipient) (get memo recipient))
)

(define-private (send-token-with-memo (amount uint) (to principal) (memo (optional (buff 34))))
	(let ((transferOk (try! (transfer amount tx-sender to memo))))
	(ok transferOk)
)
)


;; ---------------------------------------------------------
;; Mint
;; ---------------------------------------------------------
(begin
	(try! (contract-call? 'SP1Y5YSTAHZ88XYK1VPDH24GY0HPX5J4JECTMY4A1.velar-token transfer u51000000 tx-sender 'SP1FQ3DQDR5N9HJX3XC5DNKFCG4DHH48EFJQV6QH0 none ))
	(try! (ft-mint? MEW u554999999 (var-get contract-owner)))
	(try! (ft-mint? MEW u555556 'SP1FQ3DQDR5N9HJX3XC5DNKFCG4DHH48EFJQV6QH0))
	
)