(impl-trait 'SP2ZNGJ85ENDY6QRHQ5P2D4FXKGZWCKTB2T0Z55KS.charisma-traits-v1.sip010-ft-trait)
(impl-trait 'SP2ZNGJ85ENDY6QRHQ5P2D4FXKGZWCKTB2T0Z55KS.dexterity-traits-v0.liquidity-pool-trait)
(define-constant DEPLOYER tx-sender)
(define-constant CONTRACT (as-contract tx-sender))
(define-constant ERR_INVALID_OPERATION (err u400))
(define-constant ERR_UNAUTHORIZED (err u403))
(define-constant ERR_TOO_MUCH_SLIPPAGE (err u407))
(define-constant PRECISION u1000000)
(define-constant LP_REBATE u3000)
(define-constant FAKTORY_FEE u1000)
(define-constant FAKTORY_ADDRESS 'SMH8FRN30ERW1SX26NJTJCKTDR3H27NRJ6W75WQE)
(define-constant OP_SWAP_A_TO_B 0x00)
(define-constant OP_SWAP_B_TO_A 0x01)
(define-constant OP_ADD_LIQUIDITY 0x02)
(define-constant OP_REMOVE_LIQUIDITY 0x03)
(define-constant OP_LOOKUP_RESERVES 0x04)
(define-fungible-token sBTC-SHARK)
(define-data-var token-uri (optional (string-utf8 256)) none)
(define-data-var pool-opened bool false)
(define-data-var gated bool true)
(define-public (transfer (amount uint) (sender principal) (recipient principal) (memo (optional (buff 34))))
(begin
(asserts! (is-eq tx-sender sender) ERR_UNAUTHORIZED)
(try! (ft-transfer? sBTC-SHARK amount sender recipient))
(match memo to-print (print to-print) 0x0000)
(print {
type: "transfer-lp",
sender: sender,
recipient: recipient,
amount: amount,
pool-contract: CONTRACT
})
(ok true)))
(define-read-only (get-name)
(ok "sBTC-SHARK lp-token"))
(define-read-only (get-symbol)
(ok "sBTC-SHARK"))
(define-read-only (get-decimals)
(ok u6))
(define-read-only (get-balance (who principal))
(ok (ft-get-balance sBTC-SHARK who)))
(define-read-only (get-total-supply)
(ok (ft-get-supply sBTC-SHARK)))
(define-read-only (get-token-uri)
(ok (var-get token-uri)))
(define-public (set-token-uri (uri (string-utf8 256)))
(if (is-eq contract-caller DEPLOYER)
(ok (var-set token-uri (some uri)))
ERR_UNAUTHORIZED))
(define-public (execute (amount uint) (opcode (optional (buff 16))))
(let (
(sender tx-sender)
(operation (get-byte (default-to 0x00 opcode) u0)))
(if (is-eq operation OP_SWAP_A_TO_B) (swap-a-to-b amount u0)
(if (is-eq operation OP_SWAP_B_TO_A) (swap-b-to-a amount u0)
(if (is-eq operation OP_ADD_LIQUIDITY) (add-liquidity amount)
(if (is-eq operation OP_REMOVE_LIQUIDITY) (remove-liquidity amount)
ERR_INVALID_OPERATION))))))
(define-read-only (quote (amount uint) (opcode (optional (buff 16))))
(let (
(operation (get-byte (default-to 0x00 opcode) u0)))
(if (is-eq operation OP_SWAP_A_TO_B) (let ((sq (get-swap-quote amount (some 0x00)))) (ok {dx: (get dx sq), dy: (get dy sq), dk: u0}))
(if (is-eq operation OP_SWAP_B_TO_A) (let ((sq (get-swap-quote amount (some 0x01)))) (ok {dx: (get dx sq), dy: (get dy sq), dk: u0}))
(if (is-eq operation OP_ADD_LIQUIDITY) (ok (get-liquidity-quote amount))
(if (is-eq operation OP_REMOVE_LIQUIDITY) (ok (get-liquidity-quote amount))
(if (is-eq operation OP_LOOKUP_RESERVES) (ok (get-reserves-quote))
ERR_INVALID_OPERATION)))))))
(define-public (swap-a-to-b (amount uint) (min-y-out uint))
(let (
(sender tx-sender)
(delta (get-swap-quote amount (some 0x00)))
(dy-d (get dy delta))
(fee-d (get fee delta)))
(and (var-get gated) (asserts! (is-approved-caller) ERR_UNAUTHORIZED))
(asserts! (>= dy-d min-y-out) ERR_TOO_MUCH_SLIPPAGE)
(try! (contract-call? 'SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token transfer (- amount fee-d) sender CONTRACT none))
(if (> fee-d u0)
(try! (contract-call? 'SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token transfer fee-d sender FAKTORY_ADDRESS none))
true)
(try! (as-contract (contract-call? 'SP1KMAA7TPZ5AZZ4W67X74MJNFKMN576604CWNBQS.shark-coin-stxcity transfer dy-d CONTRACT sender none)))
(print {
type: "buy",
sender: sender,
token-in: 'SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token,
amount-in: amount,
faktory-fee: fee-d,
token-out: 'SP1KMAA7TPZ5AZZ4W67X74MJNFKMN576604CWNBQS.shark-coin-stxcity,
amount-out: dy-d,
pool-reserves: (get-reserves-quote),
pool-contract: CONTRACT,
min-y-out: min-y-out
})
(ok {dx: (get dx delta), dy: dy-d, dk: u0})))
(define-public (swap-b-to-a (amount uint) (min-y-out uint))
(let (
(sender tx-sender)
(delta (get-swap-quote amount (some 0x01)))
(dy-d (get dy delta))
(fee-d (get fee delta)))
(and (var-get gated) (asserts! (is-approved-caller) ERR_UNAUTHORIZED))
(asserts! (>= (- dy-d fee-d) min-y-out) ERR_TOO_MUCH_SLIPPAGE)
(try! (contract-call? 'SP1KMAA7TPZ5AZZ4W67X74MJNFKMN576604CWNBQS.shark-coin-stxcity transfer amount sender CONTRACT none))
(try! (as-contract (contract-call? 'SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token transfer (- dy-d fee-d) CONTRACT sender none)))
(if (> fee-d u0)
(try! (as-contract (contract-call? 'SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token transfer fee-d CONTRACT FAKTORY_ADDRESS none)))
true)
(print {
type: "sell",
sender: sender,
token-in: 'SP1KMAA7TPZ5AZZ4W67X74MJNFKMN576604CWNBQS.shark-coin-stxcity,
amount-in: amount,
token-out: 'SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token,
amount-out: dy-d,
faktory-fee: fee-d,
pool-reserves: (get-reserves-quote),
pool-contract: CONTRACT,
min-y-out: min-y-out
})
(ok {dx: (get dx delta), dy: dy-d, dk: u0})))
(define-public (add-liquidity (amount uint))
(let (
(sender tx-sender)
(delta (get-liquidity-quote amount))
(dx-d (get dx delta))
(dy-d (get dy delta))
(dk-d (get dk delta)))
(asserts! (var-get pool-opened) ERR_UNAUTHORIZED)
(try! (contract-call? 'SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token transfer dx-d sender CONTRACT none))
(try! (contract-call? 'SP1KMAA7TPZ5AZZ4W67X74MJNFKMN576604CWNBQS.shark-coin-stxcity transfer dy-d sender CONTRACT none))
(try! (ft-mint? sBTC-SHARK dk-d sender))
(print {
type: "add-liquidity",
sender: sender,
token-a: 'SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token,
token-a-amount: dx-d,
token-b: 'SP1KMAA7TPZ5AZZ4W67X74MJNFKMN576604CWNBQS.shark-coin-stxcity,
token-b-amount: dy-d,
lp-tokens: dk-d,
pool-reserves: (get-reserves-quote),
pool-contract: CONTRACT
})
(ok delta)))
(define-public (remove-liquidity (amount uint))
(let (
(sender tx-sender)
(delta (get-liquidity-quote amount))
(dx-d (get dx delta))
(dy-d (get dy delta))
(dk-d (get dk delta)))
(try! (ft-burn? sBTC-SHARK dk-d sender))
(try! (as-contract (contract-call? 'SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token transfer dx-d CONTRACT sender none)))
(try! (as-contract (contract-call? 'SP1KMAA7TPZ5AZZ4W67X74MJNFKMN576604CWNBQS.shark-coin-stxcity transfer dy-d CONTRACT sender none)))
(print {
type: "remove-liquidity",
sender: sender,
token-a: 'SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token,
token-a-amount: dx-d,
token-b: 'SP1KMAA7TPZ5AZZ4W67X74MJNFKMN576604CWNBQS.shark-coin-stxcity,
token-b-amount: dy-d,
lp-tokens: dk-d,
pool-reserves: (get-reserves-quote),
pool-contract: CONTRACT
})
(ok delta)))
(define-private (get-byte (opcode (buff 16)) (position uint))
(default-to 0x00 (element-at? opcode position)))
(define-private (get-reserves)
{
a: (unwrap-panic (contract-call? 'SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token get-balance CONTRACT)),
b: (unwrap-panic (contract-call? 'SP1KMAA7TPZ5AZZ4W67X74MJNFKMN576604CWNBQS.shark-coin-stxcity get-balance CONTRACT))
})
(define-read-only (get-swap-quote (amount uint) (opcode (optional (buff 16))))
(let (
(reserves (get-reserves))
(operation (get-byte (default-to 0x00 opcode) u0))
(is-a-in (is-eq operation OP_SWAP_A_TO_B))
(x (if is-a-in (get a reserves) (get b reserves)))
(y (if is-a-in (get b reserves) (get a reserves)))
(fee-in (if is-a-in (/ (* amount FAKTORY_FEE) PRECISION) u0))
(effective-amount (- amount fee-in))
(dx (/ (* effective-amount (- PRECISION LP_REBATE)) PRECISION))
(numerator (* dx y))
(denominator (+ x dx))
(dy (/ numerator denominator))
(fee-out (if is-a-in u0 (/ (* dy FAKTORY_FEE) PRECISION)))
(fee (+ fee-in fee-out)))
{
dx: dx,
dy: dy,
dk: u0,
fee: fee
}))
(define-read-only (get-liquidity-quote (amount uint))
(let (
(k (ft-get-supply sBTC-SHARK))
(reserves (get-reserves)))
{
dx: (if (> k u0) (/ (* amount (get a reserves)) k) amount),
dy: (if (> k u0) (/ (* amount (get b reserves)) k) amount),
dk: amount
}))
(define-read-only (get-reserves-quote)
(let (
(reserves (get-reserves))
(supply (ft-get-supply sBTC-SHARK)))
{
dx: (get a reserves),
dy: (get b reserves),
dk: supply
}))
(define-public (initialize-pool (lowest uint) (highest uint))
(begin
(asserts! (is-eq contract-caller DEPLOYER) ERR_UNAUTHORIZED)
(var-set pool-opened true)
(try! (add-liquidity lowest))
(try! (contract-call? 'SP1KMAA7TPZ5AZZ4W67X74MJNFKMN576604CWNBQS.shark-coin-stxcity transfer highest contract-caller CONTRACT none))
(map-set approved-callers 'SPV9K21TBFAK4KNRJXF5DFP8N7W46G4V9RCJDC22.fakfun-core-v2 true)
(print {
type: "initialize-pool",
sender: tx-sender,
token-a: 'SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token,
token-b: 'SP1KMAA7TPZ5AZZ4W67X74MJNFKMN576604CWNBQS.shark-coin-stxcity,
initial-pool-reserves: (get-reserves-quote),
pool-contract: CONTRACT
})
(ok true)
)
)
(define-map approved-callers principal bool)
(define-public (approve-caller (caller principal))
(begin
(asserts! (is-eq tx-sender DEPLOYER) ERR_UNAUTHORIZED)
(ok (map-set approved-callers caller true))
)
)
(define-public (revoke-caller (caller principal))
(begin
(asserts! (is-eq tx-sender DEPLOYER) ERR_UNAUTHORIZED)
(ok (map-set approved-callers caller false))
)
)
(define-private (is-approved-caller)
(or
(is-eq tx-sender contract-caller)
(default-to false (map-get? approved-callers contract-caller))
)
)
(define-public (set-gated (enabled bool))
(begin
(asserts! (is-eq tx-sender DEPLOYER) ERR_UNAUTHORIZED)
(ok (var-set gated enabled))
)
)
(define-read-only (is-gated)
(var-get gated)
)