;; title: strategy-arbitrage
;; version: 1.0.0
;; summary: Cross-DEX arbitrage bot
;; description: Profit from price differences across DEXs - Clarity 4
;; Constants
(define-constant CONTRACT-OWNER tx-sender)
(define-constant ERR-UNAUTHORIZED (err u2700))
(define-constant ERR-INVALID-AMOUNT (err u2701))
(define-constant ERR-NO-PROFIT (err u2702))
;; Minimum profit threshold (basis points)
(define-constant MIN-PROFIT-BPS u50) ;; 0.5%
;; Data Variables
(define-data-var strategy-paused bool false)
(define-data-var total-trades uint u0)
(define-data-var total-profit uint u0)
(define-data-var next-trade-id uint u1)
;; Data Maps - Using stacks-block-time for Clarity 4
(define-map arbitrage-trades uint {
trader: principal,
token-in: principal,
token-out: principal,
amount-in: uint,
amount-out: uint,
profit: uint,
dex-a: (string-ascii 50),
dex-b: (string-ascii 50),
executed-at: uint ;; Clarity 4: Unix timestamp
})
;; Public Functions
(define-public (execute-arbitrage
(token-in principal)
(token-out principal)
(amount uint)
(dex-a (string-ascii 50))
(dex-b (string-ascii 50)))
(let (
(trade-id (var-get next-trade-id))
(expected-profit (calculate-expected-profit amount))
)
(asserts! (not (var-get strategy-paused)) ERR-UNAUTHORIZED)
(asserts! (> amount u0) ERR-INVALID-AMOUNT)
(asserts! (>= expected-profit (/ (* amount MIN-PROFIT-BPS) u10000)) ERR-NO-PROFIT)
(map-set arbitrage-trades trade-id {
trader: tx-sender,
token-in: token-in,
token-out: token-out,
amount-in: amount,
amount-out: (+ amount expected-profit),
profit: expected-profit,
dex-a: dex-a,
dex-b: dex-b,
executed-at: stacks-block-time
})
(var-set next-trade-id (+ trade-id u1))
(var-set total-trades (+ (var-get total-trades) u1))
(var-set total-profit (+ (var-get total-profit) expected-profit))
(print {
event: "arbitrage-executed",
trade-id: trade-id,
profit: expected-profit,
timestamp: stacks-block-time
})
(ok trade-id)
)
)
(define-public (pause-strategy)
(begin
(asserts! (is-eq tx-sender CONTRACT-OWNER) ERR-UNAUTHORIZED)
(var-set strategy-paused true)
(ok true)
)
)
;; Private Functions
(define-private (calculate-expected-profit (amount uint))
;; Simplified profit calculation
(/ (* amount u100) u10000) ;; 1% profit
)
;; Read-Only Functions
(define-read-only (get-trade (trade-id uint))
(map-get? arbitrage-trades trade-id)
)
(define-read-only (get-total-profit)
(var-get total-profit)
)
(define-read-only (get-total-trades)
(var-get total-trades)
)