;; title: strategy-hedging
;; version: 1.0.0
;; summary: Portfolio hedging strategies
;; description: Protect positions with hedges - Clarity 4
;; Constants
(define-constant CONTRACT-OWNER tx-sender)
(define-constant ERR-UNAUTHORIZED (err u3400))
(define-constant ERR-NO-HEDGE (err u3401))
;; Data Variables
(define-data-var strategy-paused bool false)
(define-data-var total-hedges uint u0)
(define-data-var next-hedge-id uint u1)
;; Data Maps - Using stacks-block-time for Clarity 4
(define-map hedge-positions uint {
hedger: principal,
underlying-amount: uint,
hedge-amount: uint,
hedge-type: (string-ascii 20),
created-at: uint, ;; Clarity 4: Unix timestamp
cost: uint,
is-active: bool
})
;; Public Functions
(define-public (create-hedge (underlying uint) (hedge uint) (hedge-type (string-ascii 20)))
(let (
(hedge-id (var-get next-hedge-id))
)
(asserts! (not (var-get strategy-paused)) ERR-UNAUTHORIZED)
(map-set hedge-positions hedge-id {
hedger: tx-sender,
underlying-amount: underlying,
hedge-amount: hedge,
hedge-type: hedge-type,
created-at: stacks-block-time,
cost: u0,
is-active: true
})
(var-set next-hedge-id (+ hedge-id u1))
(var-set total-hedges (+ (var-get total-hedges) u1))
(print {
event: "hedge-created",
hedge-id: hedge-id,
type: hedge-type,
timestamp: stacks-block-time
})
(ok hedge-id)
)
)
(define-public (close-hedge (hedge-id uint))
(let (
(hedge (unwrap! (map-get? hedge-positions hedge-id) ERR-NO-HEDGE))
)
(asserts! (is-eq tx-sender (get hedger hedge)) ERR-UNAUTHORIZED)
(map-set hedge-positions hedge-id
(merge hedge { is-active: false }))
(print {
event: "hedge-closed",
hedge-id: hedge-id,
timestamp: stacks-block-time
})
(ok true)
)
)
(define-public (pause-strategy)
(begin
(asserts! (is-eq tx-sender CONTRACT-OWNER) ERR-UNAUTHORIZED)
(var-set strategy-paused true)
(ok true)
)
)
;; Read-Only Functions
(define-read-only (get-hedge (hedge-id uint))
(map-get? hedge-positions hedge-id)
)
(define-read-only (get-total-hedges)
(var-get total-hedges)
)