(define-constant CONTRACT (as-contract tx-sender))
(define-constant ERR_UNAUTHORIZED (err u403))
(define-constant ERR_NOT_INITIALIZED (err u404))
(define-constant ERR_ALREADY_INITIALIZED (err u405))
(define-constant ERR_INSUFFICIENT_AMOUNT (err u406))
(define-constant ERR_STILL_LOCKED (err u407))
(define-constant ERR_NO_DEPOSIT (err u408))
(define-constant ERR_TOO_LATE_BRO (err u409))
(define-constant ONE_8 u100000000)
(define-constant LOCK_PERIOD u12960)
(define-constant ENTRY_PERIOD u3024)
(define-data-var bfaktory-depositor (optional principal) none)
(define-data-var creation-block uint u0)
(define-data-var initial-bfaktory-amount uint u0)
(define-data-var bfaktory-used-for-lp uint u0)
(define-data-var total-lp-tokens uint u0)
(define-map user-lp-tokens principal uint)
(define-public (initialize-bfaktory-pool (bfaktory-amount uint))
(begin
(asserts! (is-none (var-get bfaktory-depositor)) ERR_ALREADY_INITIALIZED)
(asserts! (> bfaktory-amount u0) ERR_INSUFFICIENT_AMOUNT)
(try! (contract-call? 'SP1KK89R86W73SJE6RQNQPRDM471008S9JY4FQA62.token-wbfaktory
transfer bfaktory-amount tx-sender CONTRACT none))
(var-set bfaktory-depositor (some tx-sender))
(var-set creation-block burn-block-height)
(var-set initial-bfaktory-amount bfaktory-amount)
(print {
type: "bfaktory-pool-initialized",
depositor: tx-sender,
bfaktory-amount: bfaktory-amount,
unlock-block: (+ burn-block-height LOCK_PERIOD)
})
(ok true)
)
)
(define-public (deposit-stx-for-lp (stx-amount uint))
(let (
(amounts (calculate-amounts-for-lp stx-amount))
(stx-needed (get stx-needed amounts))
(bfaktory-needed (get bfaktory-needed amounts))
(stx-deposit (try! (stx-transfer? stx-needed tx-sender CONTRACT)))
(lp-result (try! (as-contract (contract-call? 'SP102V8P0F7JX67ARQ77WEA3D3CFB5XW39REDT0AM.amm-pool-v2-01
add-to-position
'SP102V8P0F7JX67ARQ77WEA3D3CFB5XW39REDT0AM.token-wstx-v2
'SP1KK89R86W73SJE6RQNQPRDM471008S9JY4FQA62.token-wbfaktory
u100000000
(* stx-needed u100)
(some bfaktory-needed)))))
(lp-tokens-received (get supply lp-result))
(current-lp (default-to u0 (map-get? user-lp-tokens tx-sender))))
(asserts! (is-some (var-get bfaktory-depositor)) ERR_NOT_INITIALIZED)
(asserts! (> stx-amount u0) ERR_INSUFFICIENT_AMOUNT)
(asserts! (< burn-block-height (+ (var-get creation-block) ENTRY_PERIOD)) ERR_TOO_LATE_BRO)
(asserts! (not (is-eq (some tx-sender) (var-get bfaktory-depositor))) ERR_UNAUTHORIZED)
(map-set user-lp-tokens tx-sender (+ current-lp lp-tokens-received))
(var-set total-lp-tokens (+ (var-get total-lp-tokens) lp-tokens-received))
(var-set bfaktory-used-for-lp (+ (var-get bfaktory-used-for-lp) bfaktory-needed))
(print {
type: "community-stx-deposit",
user: tx-sender,
stx-in: stx-needed,
bfaktory-used: bfaktory-needed,
lp-tokens: lp-tokens-received,
unlock-block: (+ (var-get creation-block) LOCK_PERIOD)
})
(ok lp-tokens-received)
)
)
(define-public (withdraw-lp-tokens)
(let ((unlock-block (+ (var-get creation-block) LOCK_PERIOD))
(user-lp (default-to u0 (map-get? user-lp-tokens tx-sender)))
(bfaktory-depositor-principal (unwrap-panic (var-get bfaktory-depositor))))
(asserts! (>= burn-block-height unlock-block) ERR_STILL_LOCKED)
(asserts! (> user-lp u0) ERR_NO_DEPOSIT)
(let ((user-percentage (div-down user-lp (var-get total-lp-tokens)))
(remove-result (try! (as-contract (contract-call? 'SP102V8P0F7JX67ARQ77WEA3D3CFB5XW39REDT0AM.amm-pool-v2-01
reduce-position
'SP102V8P0F7JX67ARQ77WEA3D3CFB5XW39REDT0AM.token-wstx-v2
'SP1KK89R86W73SJE6RQNQPRDM471008S9JY4FQA62.token-wbfaktory
u100000000
user-percentage))))
(stx-received (get dx remove-result))
(bfaktory-received (get dy remove-result))
(user-stx-share (/ (* stx-received u60) u100))
(depositor-stx-share (- stx-received user-stx-share))
(user-bfaktory-share (/ (* bfaktory-received u60) u100))
(depositor-bfaktory-share (- bfaktory-received user-bfaktory-share))
(user tx-sender))
(try! (as-contract (stx-transfer? (/ user-stx-share u100) CONTRACT user)))
(try! (as-contract (contract-call? 'SP1KK89R86W73SJE6RQNQPRDM471008S9JY4FQA62.token-wbfaktory
transfer user-bfaktory-share CONTRACT user none)))
(try! (as-contract (stx-transfer? (/ depositor-stx-share u100) CONTRACT bfaktory-depositor-principal)))
(try! (as-contract (contract-call? 'SP1KK89R86W73SJE6RQNQPRDM471008S9JY4FQA62.token-wbfaktory
transfer depositor-bfaktory-share CONTRACT bfaktory-depositor-principal none)))
(map-delete user-lp-tokens tx-sender)
(var-set total-lp-tokens (- (var-get total-lp-tokens) user-lp))
(print {
type: "lp-withdrawal",
user: tx-sender,
lp-tokens: user-lp,
user-stx: user-stx-share,
user-bfaktory: user-bfaktory-share,
depositor-stx: depositor-stx-share,
depositor-bfaktory: depositor-bfaktory-share
})
(ok user-lp)
)
)
)
(define-public (withdraw-lp-tokens-depositor (user principal))
(let ((unlock-block (+ (var-get creation-block) LOCK_PERIOD))
(user-lp (default-to u0 (map-get? user-lp-tokens user)))
(bfaktory-depositor-principal (unwrap-panic (var-get bfaktory-depositor))))
(asserts! (is-eq tx-sender bfaktory-depositor-principal) ERR_UNAUTHORIZED)
(asserts! (>= burn-block-height unlock-block) ERR_STILL_LOCKED)
(asserts! (> user-lp u0) ERR_NO_DEPOSIT)
(let ((user-percentage (div-down user-lp (var-get total-lp-tokens)))
(remove-result (try! (as-contract (contract-call? 'SP102V8P0F7JX67ARQ77WEA3D3CFB5XW39REDT0AM.amm-pool-v2-01
reduce-position
'SP102V8P0F7JX67ARQ77WEA3D3CFB5XW39REDT0AM.token-wstx-v2
'SP1KK89R86W73SJE6RQNQPRDM471008S9JY4FQA62.token-wbfaktory
u100000000
user-percentage))))
(stx-received (get dx remove-result))
(bfaktory-received (get dy remove-result))
(user-stx-share (/ (* stx-received u60) u100))
(depositor-stx-share (- stx-received user-stx-share))
(user-bfaktory-share (/ (* bfaktory-received u60) u100))
(depositor-bfaktory-share (- bfaktory-received user-bfaktory-share)))
(try! (as-contract (stx-transfer? (/ user-stx-share u100) CONTRACT user)))
(try! (as-contract (contract-call? 'SP1KK89R86W73SJE6RQNQPRDM471008S9JY4FQA62.token-wbfaktory
transfer user-bfaktory-share CONTRACT user none)))
(try! (as-contract (stx-transfer? (/ depositor-stx-share u100) CONTRACT bfaktory-depositor-principal)))
(try! (as-contract (contract-call? 'SP1KK89R86W73SJE6RQNQPRDM471008S9JY4FQA62.token-wbfaktory
transfer depositor-bfaktory-share CONTRACT bfaktory-depositor-principal none)))
(map-delete user-lp-tokens user)
(var-set total-lp-tokens (- (var-get total-lp-tokens) user-lp))
(print {
type: "depositor-assisted-withdrawal",
user: user,
withdrawn-by: tx-sender,
lp-tokens: user-lp,
user-stx: user-stx-share,
user-bfaktory: user-bfaktory-share,
depositor-stx: depositor-stx-share,
depositor-bfaktory: depositor-bfaktory-share
})
(ok user-lp)
)
)
)
(define-public (withdraw-remaining-bfaktory)
(let ((entry-end-block (+ (var-get creation-block) ENTRY_PERIOD))
(bfaktory-depositor-principal (unwrap-panic (var-get bfaktory-depositor))))
(asserts! (>= burn-block-height entry-end-block) ERR_STILL_LOCKED)
(asserts! (is-eq tx-sender bfaktory-depositor-principal) ERR_UNAUTHORIZED)
(let ((remaining-bfaktory (- (var-get initial-bfaktory-amount) (var-get bfaktory-used-for-lp))))
(and (> remaining-bfaktory u0)
(try! (as-contract (contract-call? 'SP1KK89R86W73SJE6RQNQPRDM471008S9JY4FQA62.token-wbfaktory
transfer remaining-bfaktory CONTRACT bfaktory-depositor-principal none))))
(print {
type: "bfaktory-withdrawal",
amount: remaining-bfaktory
})
(ok remaining-bfaktory)
)
)
)
(define-read-only (get-pool-info)
{
bfaktory-depositor: (var-get bfaktory-depositor),
creation-block: (var-get creation-block),
unlock-block: (+ (var-get creation-block) LOCK_PERIOD),
entry-ends: (+ (var-get creation-block) ENTRY_PERIOD),
is-unlocked: (>= burn-block-height (+ (var-get creation-block) LOCK_PERIOD)),
initial-bfaktory: (var-get initial-bfaktory-amount),
bfaktory-used: (var-get bfaktory-used-for-lp),
bfaktory-available: (- (var-get initial-bfaktory-amount) (var-get bfaktory-used-for-lp)),
total-lp-tokens: (var-get total-lp-tokens)
}
)
(define-read-only (get-user-lp-tokens (user principal))
(default-to u0 (map-get? user-lp-tokens user))
)
(define-read-only (get-quote-for-lp (stx-amount uint))
(contract-call? 'SP102V8P0F7JX67ARQ77WEA3D3CFB5XW39REDT0AM.amm-pool-v2-01
get-token-given-position
'SP102V8P0F7JX67ARQ77WEA3D3CFB5XW39REDT0AM.token-wstx-v2
'SP1KK89R86W73SJE6RQNQPRDM471008S9JY4FQA62.token-wbfaktory
u100000000
(* stx-amount u100)
none))
(define-read-only (calculate-amounts-for-lp (stx-amount uint))
(let ((liquidity-quote (unwrap-panic (get-quote-for-lp stx-amount))))
{
stx-needed: stx-amount,
bfaktory-needed: (get dy liquidity-quote)
}))
(define-private (div-down (a uint) (b uint))
(if (is-eq a u0) u0 (/ (* a ONE_8) b)))