;; Simple Activity Counter Contract
;; Purpose: Generate network activity by calling increment from different wallets
(define-data-var counter uint u0)
(define-data-var last-caller (optional principal) none)
(define-public (increment)
(begin
(var-set counter (+ (var-get counter) u1))
(var-set last-caller (some tx-sender))
(print { event: "incremented", caller: tx-sender, value: (var-get counter) })
(ok (var-get counter))
)
)
(define-read-only (get-counter)
(ok (var-get counter))
)
(define-read-only (get-last-caller)
(ok (var-get last-caller))
)