;; @contract Staking Silo
;; @version 1.1
;;-------------------------------------
;; Constants
;;-------------------------------------
(define-constant ERR_NO_CLAIM_FOR_ID (err u3101))
(define-constant ERR_NOT_COOLED_DOWN (err u3102))
(define-constant ERR_ONLY_STAKING_CONTRACT (err u3103))
;;-------------------------------------
;; Variables
;;-------------------------------------
(define-data-var current-claim-id uint u0)
;;-------------------------------------
;; Maps
;;-------------------------------------
(define-map claims
{
claim-id: uint
}
{
recipient: principal,
amount: uint, ;; USDh
ts: uint, ;; timestamp in seconds
}
)
;;-------------------------------------
;; Getters
;;-------------------------------------
(define-read-only (get-current-ts)
(unwrap-panic (get-stacks-block-info? time (- stacks-block-height u1)))
)
(define-read-only (get-current-claim-id)
(var-get current-claim-id)
)
(define-read-only (get-claim (id uint))
(ok (unwrap! (map-get? claims { claim-id: id }) ERR_NO_CLAIM_FOR_ID))
)
;;-------------------------------------
;; User
;;-------------------------------------
;; @desc - executes a claim for each claim-id in the list
;; @param - entries: list of claim-ids
(define-public (withdraw-many (entries (list 1000 uint)))
(ok (map withdraw entries)))
;; @desc - transfers USDh to recipient of the claim after the cooldown window has passed
;; @param - claim-id: uint id of the claim
(define-public (withdraw (claim-id uint))
(let (
(current-claim (try! (get-claim claim-id)))
)
(asserts! (>= (get-current-ts) (get ts current-claim)) ERR_NOT_COOLED_DOWN)
(try! (contract-call? .test-usdh-token-v1 transfer (get amount current-claim) (as-contract tx-sender) (get recipient current-claim) none))
(print {action: "withdraw", user: contract-caller, data: {claim-id: claim-id, claim-data: current-claim}})
(ok (map-delete claims { claim-id: claim-id }))
)
)
;;-------------------------------------
;; Protocol
;;-------------------------------------
;; @desc - called by the protocol to create a claim for the user to withdraw USDh
;; @param - amount: amount of USDh to claim (10**8)
;; @param - recipient: recipient of the claim
(define-public (create-claim (amount uint) (recipient principal))
(let (
(next-claim-id (+ (get-current-claim-id) u1))
(ts (+ (get-current-ts) (contract-call? .test-staking-state-v1 get-custom-cooldown recipient)))
)
(asserts! (is-eq contract-caller .test-staking-v1-1) ERR_ONLY_STAKING_CONTRACT)
(map-set claims { claim-id: next-claim-id }
{
recipient: recipient,
amount: amount, ;; USDh
ts: ts
}
)
(print {action: "create-claim", user: contract-caller, data: {claim-id: next-claim-id, recipient: recipient, amount: amount, claim-ts: ts}})
(ok (var-set current-claim-id next-claim-id))
)
)