(define-public (execute (sender principal))
(begin
;; enable the token for staking
(try! (contract-call? 'SP2ZNGJ85ENDY6QRHQ5P2D4FXKGZWCKTB2T0Z55KS.lands set-whitelisted 'SP1AY6K3PQV5MRT6R4S671NWW2FRVPKM0BR162CT6.leo-token true))
(let
(
;; create a unique id for the staked token
(land-id (try! (contract-call? 'SP2ZNGJ85ENDY6QRHQ5P2D4FXKGZWCKTB2T0Z55KS.lands get-or-create-land-id 'SP1AY6K3PQV5MRT6R4S671NWW2FRVPKM0BR162CT6.leo-token)))
;; lookup the total supply of the staked token
(total-supply (unwrap-panic (contract-call? 'SP1AY6K3PQV5MRT6R4S671NWW2FRVPKM0BR162CT6.leo-token get-total-supply)))
;; calculate the initial difficulty based on the total supply
(land-difficulty (/ total-supply (pow u10 u5)))
)
;; set initial difficulty based on total supply to normalize energy output
(contract-call? 'SP2ZNGJ85ENDY6QRHQ5P2D4FXKGZWCKTB2T0Z55KS.lands set-land-difficulty land-id land-difficulty)
)
)
)