;; SPDX-License-Identifier: BUSL-1.1
(impl-trait 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.extension-trait.extension-trait)
(use-trait ft-trait 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.trait-sip-010.sip-010-trait)
(define-constant err-unauthorised (err u1000))
(define-constant err-paused (err u1001))
(define-constant err-peg-in-address-not-found (err u1002))
(define-constant err-invalid-amount (err u1003))
(define-constant err-invalid-tx (err u1004))
(define-constant err-already-sent (err u1005))
(define-constant err-bitcoin-tx-not-mined (err u1011))
(define-constant err-invalid-input (err u1012))
(define-constant err-token-mismatch (err u1015))
(define-constant err-slippage (err u1016))
(define-constant err-not-in-whitelist (err u1017))
(define-constant err-invalid-routing (err u1018))
(define-constant err-commit-tx-mismatch (err u1019))
(define-constant err-invalid-token (err u1020))
(define-constant MAX_UINT u340282366920938463463374607431768211455)
(define-constant ONE_8 u100000000)
(define-data-var fee-to-address principal 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.executor-dao)
(define-data-var peg-in-paused bool true)
(define-data-var peg-in-fee uint u0)
(define-data-var peg-in-min-fee uint u0)
(define-data-var btc-peg-outfee uint u0)
(define-data-var btc-peg-out-min-fee uint u0)
;; governance functions
(define-public (set-fee-to-address (new-fee-to-address principal))
(begin
(try! (is-dao-or-extension))
(ok (var-set fee-to-address new-fee-to-address))))
(define-public (pause-peg-in (paused bool))
(begin
(try! (is-dao-or-extension))
(ok (var-set peg-in-paused paused))))
(define-public (set-peg-in-fee (fee uint))
(begin
(try! (is-dao-or-extension))
(ok (var-set peg-in-fee fee))))
(define-public (set-peg-in-min-fee (fee uint))
(begin
(try! (is-dao-or-extension))
(ok (var-set peg-in-min-fee fee))))
(define-public (set-btc-peg-out-fee (fee uint))
(begin
(try! (is-dao-or-extension))
(ok (var-set btc-peg-outfee fee))))
(define-public (set-btc-peg-out-min-fee (fee uint))
(begin
(try! (is-dao-or-extension))
(ok (var-set btc-peg-out-min-fee fee))))
(define-public (callback (sender principal) (payload (buff 2048)))
(ok true))
;; read-only functions
(define-read-only (is-dao-or-extension)
(ok (asserts! (or (is-eq tx-sender 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.executor-dao) (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.executor-dao is-extension contract-caller)) err-unauthorised)))
(define-read-only (is-peg-in-paused)
(var-get peg-in-paused))
(define-read-only (get-peg-in-fee)
(var-get peg-in-fee))
(define-read-only (get-peg-in-min-fee)
(var-get peg-in-min-fee))
(define-read-only (get-btc-peg-out-fee)
(var-get btc-peg-outfee))
(define-read-only (get-btc-peg-out-min-fee)
(var-get btc-peg-out-min-fee))
(define-read-only (get-fee-to-address)
(var-get fee-to-address))
(define-read-only (is-peg-in-address-approved (address (buff 128)))
(contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-bridge-registry-v2-01 is-peg-in-address-approved address))
(define-read-only (get-peg-in-sent-or-default (tx (buff 32768)) (output uint))
(contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-bridge-registry-v2-01 get-peg-in-sent-or-default tx output))
(define-read-only (extract-tx-ins-outs (tx (buff 32768)))
(contract-call? 'SP673Z4BPB4R73359K9HE55F2X91V5BJTN5SXZ5T.bridge-common-v2-02 extract-tx-ins-outs tx))
(define-read-only (get-txid (tx (buff 32768)))
(contract-call? 'SP673Z4BPB4R73359K9HE55F2X91V5BJTN5SXZ5T.bridge-common-v2-02 get-txid tx))
(define-read-only (destruct-principal (address principal))
(contract-call? 'SP673Z4BPB4R73359K9HE55F2X91V5BJTN5SXZ5T.bridge-common-v2-02 destruct-principal address))
(define-read-only (construct-principal (hash-bytes (buff 20)))
(contract-call? 'SP673Z4BPB4R73359K9HE55F2X91V5BJTN5SXZ5T.bridge-common-v2-02 construct-principal hash-bytes))
(define-read-only (verify-mined (tx (buff 32768)) (block { header: (buff 80), height: uint }) (proof { tx-index: uint, hashes: (list 14 (buff 32)), tree-depth: uint }))
(contract-call? 'SP673Z4BPB4R73359K9HE55F2X91V5BJTN5SXZ5T.bridge-common-v2-02 verify-mined tx block proof))
(define-read-only (decode-from-reveal-tx-or-fail (tx (buff 32768)) (order-idx uint))
(contract-call? 'SP673Z4BPB4R73359K9HE55F2X91V5BJTN5SXZ5T.bridge-common-v2-02 decode-from-reveal-tx-or-fail tx order-idx))
(define-read-only (break-routing-id (routing-ids (list 4 uint)))
(contract-call? 'SP673Z4BPB4R73359K9HE55F2X91V5BJTN5SXZ5T.bridge-common-v2-02 break-routing-id routing-ids))
;; @dev cross-swap order size > 80 bytes, so uses drop
(define-read-only (create-order-cross-swap-or-fail (order { from: (buff 128), to: (buff 128), routing: (list 4 uint), token-out: principal, min-amount-out: (optional uint), chain-id: (optional uint) }))
(contract-call? 'SP673Z4BPB4R73359K9HE55F2X91V5BJTN5SXZ5T.bridge-common-v2-02 create-order-cross-swap-or-fail order))
;; @dev no op-code offset for drop-based order
(define-read-only (decode-order-cross-swap-or-fail (order-script (buff 512)))
(contract-call? 'SP673Z4BPB4R73359K9HE55F2X91V5BJTN5SXZ5T.bridge-common-v2-02 decode-order-cross-swap-or-fail order-script u0))
(define-read-only (decode-order-cross-swap-from-reveal-tx-or-fail (tx (buff 32768)) (order-idx uint))
(contract-call? 'SP673Z4BPB4R73359K9HE55F2X91V5BJTN5SXZ5T.bridge-common-v2-02 decode-order-cross-swap-from-reveal-tx-or-fail tx order-idx))
;; @dev reveal-tx is sent by bot to peg-in-address by consuming previous input, so we skip verify-mine
(define-read-only (validate-tx-cross-swap (commit-tx { tx: (buff 32768), output-idx: uint }) (reveal-tx { tx: (buff 32768), order-idx: uint }) (routing-traits (list 5 <ft-trait>)) (token-out-trait <ft-trait>))
(validate-tx-cross-swap-extra (try! (validate-tx-cross-swap-base commit-tx reveal-tx)) routing-traits token-out-trait))
;; public functions
(define-public (finalize-peg-in-cross-swap
(tx (buff 32768))
(block { header: (buff 80), height: uint })
(proof { tx-index: uint, hashes: (list 14 (buff 32)), tree-depth: uint })
(output-idx uint)
(reveal-tx { tx: (buff 32768), order-idx: uint })
(routing-traits (list 5 <ft-trait>))
(token-out-trait <ft-trait>))
(let (
(common-check (try! (finalize-peg-in-common tx block proof)))
(validation-data (try! (validate-tx-cross-swap-base { tx: tx, output-idx: output-idx } reveal-tx)))
(order-details (get order-details validation-data))
(print-msg { type: "finalize-peg-in-cross-swap", tx-id: (try! (get-txid tx)), output: output-idx, order-details: order-details, fee: (get fee validation-data), amount-net: (get amount-net validation-data) }))
(as-contract (try! (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.token-abtc mint-fixed (+ (get fee validation-data) (get amount-net validation-data)) tx-sender)))
(as-contract (try! (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-bridge-registry-v2-01 set-peg-in-sent tx output-idx true)))
(match (validate-tx-cross-swap-extra validation-data routing-traits token-out-trait)
ok-value
(let (
(default-fee (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-peg-out-endpoint-v2-01 get-peg-out-fee))
(default-min-fee (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-peg-out-endpoint-v2-01 get-peg-out-min-fee)))
(try! (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-peg-out-endpoint-v2-01 set-peg-out-fee (var-get btc-peg-outfee)))
(try! (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-peg-out-endpoint-v2-01 set-peg-out-min-fee (var-get btc-peg-out-min-fee)))
(and (> (get fee validation-data) u0) (as-contract (try! (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.token-abtc transfer-fixed (get fee validation-data) tx-sender (var-get fee-to-address) none))))
(as-contract (try! (contract-call? .cross-router-v2-03 route (get amount-net validation-data) routing-traits (get routing-factors ok-value) token-out-trait (get min-amount-out order-details) { address: (get to order-details), chain-id: (get chain-id order-details) })))
(try! (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-peg-out-endpoint-v2-01 set-peg-out-fee default-fee))
(try! (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-peg-out-endpoint-v2-01 set-peg-out-min-fee default-min-fee))
(print (merge print-msg { success: true }))
(ok true))
err-value
(begin
(as-contract (try! (refund (+ (get fee validation-data) (get amount-net validation-data)) (get from order-details))))
(print (merge print-msg { success: false, err-value: err-value }))
(ok false)))))
;; internal functions
(define-private (check-err (result (response bool uint)) (prior (response bool uint)))
(match prior ok-value result err-value (err err-value)))
(define-private (check-trait (token-trait <ft-trait>) (token principal))
(ok (asserts! (is-eq (contract-of token-trait) token) err-token-mismatch)))
(define-private (validate-tx-cross-swap-base (commit-tx { tx: (buff 32768), output-idx: uint }) (reveal-tx { tx: (buff 32768), order-idx: uint }))
(let (
(validation-data (try! (validate-drop-tx-common commit-tx reveal-tx))))
(ok { order-details: (try! (decode-order-cross-swap-or-fail (get order-script validation-data))), fee: (get fee validation-data), amount-net: (get amount-net validation-data) })))
(define-private (validate-tx-cross-swap-extra (validation-data { order-details: { from: (buff 128), to: (buff 128), routing: (list 4 uint), token-out: principal, min-amount-out: (optional uint), chain-id: (optional uint) }, fee: uint, amount-net: uint }) (routing-traits (list 5 <ft-trait>)) (token-out-trait <ft-trait>))
(let (
(order-details (get order-details validation-data))
(routing-details (try! (break-routing-id (get routing order-details)))))
(asserts! (is-eq (len routing-traits) (len (get routing-tokens routing-details))) err-token-mismatch)
(try! (check-trait token-out-trait (get token-out order-details)))
(try! (fold check-err (map check-trait routing-traits (get routing-tokens routing-details)) (ok true)))
(try! (contract-call? .cross-router-v2-03 validate-route (get amount-net validation-data) (get routing-tokens routing-details) (get routing-factors routing-details) (get token-out order-details) (get min-amount-out order-details) { address: (get to order-details), chain-id: (get chain-id order-details) }))
(ok (merge validation-data { routing-tokens: (get routing-tokens routing-details), routing-factors: (get routing-factors routing-details) }))))
(define-private (validate-tx-common (tx (buff 32768)) (output-idx uint) (order-idx uint))
(let (
(parsed-tx (try! (extract-tx-ins-outs tx)))
(output (unwrap! (element-at (get outs parsed-tx) output-idx) err-invalid-tx))
(amount (get value output))
(peg-in-address (get scriptPubKey output))
(order-script (get scriptPubKey (unwrap-panic (element-at? (get outs parsed-tx) order-idx))))
(fee (max (mul-down amount (var-get peg-in-fee)) (var-get peg-in-min-fee)))
(check-fee (asserts! (> amount fee) err-invalid-amount))
(amount-net (- amount fee)))
(asserts! (not (get-peg-in-sent-or-default tx output-idx)) err-already-sent)
(asserts! (is-peg-in-address-approved peg-in-address) err-peg-in-address-not-found)
(ok { parsed-tx: parsed-tx, order-script: order-script, fee: fee, amount-net: amount-net })))
(define-private (validate-drop-tx-common (commit-tx { tx: (buff 32768), output-idx: uint }) (reveal-tx { tx: (buff 32768), order-idx: uint }))
(let (
(parsed-tx (try! (extract-tx-ins-outs (get tx commit-tx))))
(output (unwrap! (element-at (get outs parsed-tx) (get output-idx commit-tx)) err-invalid-tx))
(amount (get value output))
(peg-in-address (get scriptPubKey output))
(reveal-tx-data (try! (decode-from-reveal-tx-or-fail (get tx reveal-tx) (get order-idx reveal-tx))))
(fee (max (mul-down amount (var-get peg-in-fee)) (var-get peg-in-min-fee)))
(check-fee (asserts! (> amount fee) err-invalid-amount))
(amount-net (- amount fee)))
(asserts! (not (get-peg-in-sent-or-default (get tx commit-tx) (get output-idx commit-tx))) err-already-sent)
(asserts! (is-peg-in-address-approved peg-in-address) err-peg-in-address-not-found)
(asserts! (is-eq (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.clarity-bitcoin-v1-07 get-segwit-txid (get tx commit-tx)) (get commit-txid reveal-tx-data)) err-commit-tx-mismatch)
(ok { parsed-tx: parsed-tx, order-script: (get order-script reveal-tx-data), fee: fee, amount-net: amount-net })))
(define-private (finalize-peg-in-common
(tx (buff 32768))
(block { header: (buff 80), height: uint })
(proof { tx-index: uint, hashes: (list 14 (buff 32)), tree-depth: uint }))
(begin
(asserts! (not (var-get peg-in-paused)) err-paused)
(verify-mined tx block proof)))
(define-private (max (a uint) (b uint))
(if (< a b) b a))
(define-private (min (a uint) (b uint))
(if (< a b) a b))
(define-private (mul-down (a uint) (b uint))
(/ (* a b) ONE_8))
(define-private (div-down (a uint) (b uint))
(if (is-eq a u0) u0 (/ (* a ONE_8) b)))
(define-private (unwrap-string-to-uint (input (string-ascii 40)))
(unwrap-panic (string-to-uint? input)))
(define-private (refund (amount uint) (from (buff 128)))
(ok (and (> amount u0)
(let (
(default-fee (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-peg-out-endpoint-v2-01 get-peg-out-fee))
(default-min-fee (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-peg-out-endpoint-v2-01 get-peg-out-min-fee)))
(try! (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-peg-out-endpoint-v2-01 set-peg-out-fee u0))
(try! (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-peg-out-endpoint-v2-01 set-peg-out-min-fee u0))
(try! (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-peg-out-endpoint-v2-01 request-peg-out-0 from amount))
(try! (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-peg-out-endpoint-v2-01 set-peg-out-fee default-fee))
(try! (contract-call? 'SP2XD7417HGPRTREMKF748VNEQPDRR0RMANB7X1NK.btc-peg-out-endpoint-v2-01 set-peg-out-min-fee default-min-fee))
true))))