0x68575b07…67c7·#25,914,176·view on Etherscan
sh and retry");
const addr=i=>"0x"+at(i).slice(24);
if(/^0x0{40}$/i.test(addr(0)))throw Error("bid is closed — refresh and retry");
if(BigInt("0x"+at(1)))throw Error("NFT bids are not routable from here");
if(addr(4).toLowerCase()!==want.toLowerCase()
||addr(6).toLowerCase()!==gets.toLowerCase())
throw Error("bid changed — refresh and retry");
if(BigInt("0x"+at(10))<pay)throw Error("bid partly taken — refresh and retry");
}
async function preflightFills(fills,tokenIn,tokenOut){
if(!fills||!fills.length)return;
const inA=(tokenIn===ZERO?WETH:tokenIn).toLowerCase();
const outA=(tokenOut===ZERO?WETH:tokenOut).toLowerCase();
const reads=fills.map(f=>f.board.toLowerCase()===FLOOR.toLowerCase()
?{to:FLOOR,data:"0x"+SEL_BIDS+encUint(f.id)}
:f.board.toLowerCase()===DUTCH.toLowerCase()
?{to:DUTCH,data:"0x"+SEL_DUTCH_LISTING+encUint(f.id)}
:{to:f.board,data:"0x"+SEL_GETORDERS+encUint(32)+encUint(1)+encUint(f.id)});
const res=await mc3Deep(reads);
const stale=()=>{throw Error("an order in this route just changed — refreshing")};
for(let i=0;i<fills.length;i++){
const f=fills[i],raw=res[i];
if(!raw)stale();
const s=strip0x(raw),at=k=>BigInt("0x"+s.slice(k*64,(k+1)*64));
if(f.board.toLowerCase()===FLOOR.toLowerCase()){
if(s.length<11*64)stale();
const ad=k=>"0x"+s.slice(k*64+24,(k+1)*64);
if(/^0x0{40}$/i.test(ad(0))||at(1))stale();
if(ad(4).toLowerCase()!==inA||ad(6).toLowerCase()!==outA)stale();
if(at(10)<f.pay)stale();
}else if(f.board.toLowerCase()===DUTCH.toLowerCase()){
if(s.length<11*64||at(0)===0n)stale();
if(at(9)<f.get)stale();
if(at(10)&&BigInt(Math.floor(Date.now()/1e3))>at(10))stale();
}else{
const wds=WORDS(f.board.toLowerCase()===SB2.toLowerCase()?1:0);
if(s.length<(2+wds)*64)stale();
const w=k=>at(2+k),ad=k=>"0x"+s.slice((2+k)*64+24,(3+k)*64);
if(w(1)!==1n)stale();
const v2=wds===11,iA=v2?7:2,iB=v2?9:4;
if(ad(iA).toLowerCase()!==outA||ad(iB).toLowerCase()!==inA)stale();
if(w(iB+1)<f.pay)stale();
if(v2&&w(iA+1)<f.get)stale();
if(v2&&w(3)&&BigInt(Math.floor(Date.now()/1e3))>w(3))stale();
}
}
}
async function preflightAsk(row,pay){
if(row.dutch){
let h;
try{h=await rpc(C,[{to:DUTCH,data:"0x"+SEL_DUTCH_LISTING+encUint(row.id)},L])}
catch{throw Error("listing could not be read — refresh and retry")}
const s=strip0x(h);
if(s.length<640)throw Error("listing could not be read — refresh and retry");
if(BigInt("0x"+s.slice(0,64))===0n)throw Error("listing is closed — refresh and retry");
return;
}
let h;
try{h=await rpc(C,[{to:row.board,
data:"0x"+SEL_GETORDERS+encUint(32)+encUint(1)+encUint(row.id)},L])}
catch{throw Error("order could not be read — refresh and retry")}
const s=strip0x(h),wds=WORDS(row.v2);
if(s.length<(2+wds)*64)throw Error("order could not be read — refresh and retry");
const at=k=>BigInt("0x"+s.slice(128+k*64,128+(k+1)*64));
const ad=k=>"0x"+s.slice(128+k*64+24,128+(k+1)*64);
if(at(1)!==1n)throw Error("order is no longer active — refresh and retry");
const iA=row.v2?7:2,iB=row.v2?9:4;
if(ad(iA).toLowerCase()!==row.tA.toLowerCase()
||ad(iB).toLowerCase()!==row.tB.toLowerCase())
throw Error("order changed — refresh and retry");
if(at(iA+1)>row.aA||at(iB+1)>row.aB)throw Error("order changed — refresh and retry");
if(pay!==undefined&&at(iB+1)<pay)throw Error("order partly taken — refresh and retry");
}
const SEL_ORDER_FIXED="bcdb7936",SEL_ORDER_DUTCH="bbd94e1a",SEL_CHECKPOINT="a972985e";
const BOARDS=()=>[{a:SB2,v2:1},{a:SB1,v2:0}].filter(b=>b.a!==ZERO);
const WORDS=b=>b?11:6;
let bookSeq=0,bookRows=[],candCache={},bkOpen=LS.bk!=="0",bookTrunc=false;
let busy=0;
if(LS.wm==="weth"||LS.wm==="auto")ethMode.value=LS.wm;
ethMode.onchange=()=>{LS.wm=ethMode.value};
const wantsUnwrap=()=>ethMode.value!=="weth";
const planWethPayment=async need=>{
let w=0n,e=0n;
try{
const[wh,eh]=await Promise.all([
rpc(C,[{to:WETH,data:"0x"+SEL_BALANCEOF+encAddr(account)},L]),
rpc("eth_getBalance",[account,L])]);
w=BigInt(wh);e=BigInt(eh);
}catch{return{rail:"weth",wrap:0n,w,e}}
if(w>=need)return{rail:"weth",wrap:0n,w,e};
if(e>=need)return{rail:"eth",wrap:0n,w,e};
let gas=0n;
try{gas=BigInt(await rpc("eth_gasPrice",[]))*400000n}catch{}
const spendable=e>gas?e-gas:0n;
if(w+spendable>=need)return{rail:"weth",wrap:need-w,w,e};
return{rail:"short",wrap:0n,w,e};
};
const assertFunded=async(token,need,meta)=>{
if(!need)return;
let have;
try{
have=token===ZERO
?BigInt(await rpc("eth_getBalance",[account,L]))
:BigInt(await rpc(C,[{to:token,data:"0x"+SEL_BALANCEOF+encAddr(account)},L]));
}catch{return}
if(have>=need)return;
const m=meta||known(token)||{sym:token===ZERO?"ETH":"tokens",dec:18};
throw Error(`Not enough ${m.sym} to fill: it costs ${trimAmt(need,m.dec)} `
+`and you hold ${trimAmt(have,m.dec)}.`);
};
const known=a=>TOKENS.find(t=>t.addr.toLowerCase()===a.toLowerCase());
const sm=i=>i.replace('width="20" height="20"','width="15" height="15"');
const escan=(a,id)=>!isAddr(a)?"":`<a href="${chainCfg().explorer}/${id!=null?`nft/${a}/${id}`:`token/${a}`}" target="_blank" rel="noreferrer">${a.slice(0,6)}…${a.slice(-4)} ↗</a>`;
const SEL_CONTRACTURI="e8a3d485";
const okDataImg=u=>typeof u==="string"&&u.length<=60000
&&/^data:image\/[a-z.+-]{2,20};base64,[A-Za-z0-9+/=]+$/i.test(u);
const imgFromContractURI=raw=>{
const P="data:application/json;base64,";
const u=String(raw||"").trim();
if(!u.startsWith(P)||u.length>400000)return "";
let txt;
try{
const bin=atob(u.slice(P.length));
txt=new TextDecoder().decode(Uint8Array.from(bin,c=>c.charCodeAt(0)));
}catch{return ""}
let j;try{j=JSON.parse(txt)}catch{return ""}
return okDataImg(j&&j.image)?j.image:"";
};
const capObj=(o,max)=>{const ks=Object.keys(o);
for(let i=0;i<ks.length-max;i++)delete o[ks[i]]};
const capMap=(m,max)=>{while(m.size>max)m.delete(m.keys().next().value)};
const LOGO_MAX=192,CARD_MAX=64,META_MAX=256;
const logoCache={};
async function loadLogos(addrs){
const want=[...new Set(addrs.map(a=>a.toLowerCase()))]
.filter(a=>a!==ZERO&&!known(a)&&logoCache[a]===undefined);
if(!want.length)return;
let raw=[];
if(TOKENLIST!==ZERO)raw=await cfgBatch(want.map(a=>({to:TOKENLIST,data:"0x"+SEL_LOGOOF+encAddr(a)}))).catch(()=>[]);
want.forEach((a,i)=>{let u="";try{if(raw[i])u=safeDataUrl(decodeString(raw[i]))}catch{}logoCache[a]=u});
capObj(logoCache,LOGO_MAX);
const self=want.filter(a=>!logoCache[a]);
if(!self.length)return;
const cu=await mc3Deep(self.map(a=>({to:a,data:"0x"+SEL_CONTRACTURI}))).catch(()=>[]);
self.forEach((a,i)=>{try{
const u=imgFromContractURI(cu[i]?decodeString(cu[i]):"");
if(u)logoCache[a]=u;
}catch{}});
}
async function leg(addr,amt,isNft,meta){
const k=known(addr);
if(isNft)return{ic:genIcon("#"),txt:`#${amt}`,ok:0,link:escan(addr,amt)};
const raw=meta&&meta.sym?meta:await tokMeta(addr),m={...raw,sym:safeSym(raw.sym)};
const lg=k?"":logoCache[addr.toLowerCase()];
const ic=k?sm(k.icon):lg?`<img src="${lg}" width="15" height="15">`:genIcon(m.sym);
return{ic,txt:`${trimAmt(amt,m.dec)} ${k?safeSym(k.sym):'“'+m.sym+'”'}`,ok:!!k,
sym:k?safeSym(k.sym):m.sym,dec:m.dec,link:addr===ZERO?"ETH":escan(addr)};
}
let floorSeq=0;
nftId.addEventListener("input",()=>{syncOrderType();showFloor();render()});
async function showFloor(){
const el=document.getElementById("floorNote");if(!el)return;
const side=isNft(fromSel.value)?fromSel.value:isNft(toSel.value)?toSel.value:null;
const live=tab==="book"&&side!==null&&!nftId.value.trim();
if(!live){el.classList.add("hide");el.textContent="";return}
const seq=++floorSeq,t=TOKENS[side];
el.classList.remove("hide");el.textContent="Checking floor bids…";
const oth=isNft(fromSel.value)?toSel.value:fromSel.value;
const qt=isNft(oth)?ZERO:(TOKENS[oth].addr===ZERO?WETH:TOKENS[oth].addr);
const rows=await collectionFloor(t.addr,qt).catch(()=>[]);
if(seq!==floorSeq)return;
if(!rows.length){el.textContent="No standing bids on this collection.";return}
const best=rows[0],q=known(best.quote);
el.textContent=`${rows.length} collection bid${rows.length>1?"s":""} · best pays `
+`${trimAmt(best.price/best.initial,q?q.dec:best.qDec??18)} ${q?q.sym:safeSym(best.qSym||"?")} for any ${t.sym}`;
}
function decBidRows(hex){
const out=[];
try{
const h=strip0x(hex),bytes=h.length/2;
const word=b=>{if(b<0||b+32>bytes)throw 0;return BigInt("0x"+h.slice(b*2,(b+32)*2))};
const num=b=>{const v=word(b);if(v>0xffffffffffffffffn)throw 0;return Number(v)};
const arr=num(0);
if(arr<64||arr+32>bytes)throw 0;
const n=num(arr),base=arr+32;
if(n>256||base+n*32>bytes)throw 0;
for(let i=0;i<n;i++){
try{
const row=base+num(base+i*32);
if(row+17*32>bytes)throw 0;
const f=k=>word(row+k*32);
const txt=k=>{const p=row+num(row+k*32),len=num(p);
if(p+32+len>bytes)throw 0;
return safeSym(new TextDecoder().decode(hexToBytes(h.slice((p+32)*2,(p+32+Math.min(len,1024))*2))))};
const dec=k=>{const v=num(row+k*32);return v>0&&v<=37?v-1:null};
out.push({
id:f(0),
bidder:"0x"+h.slice((row+1*32+12)*2,(row+2*32)*2),
token:"0x"+h.slice((row+2*32+12)*2,(row+3*32)*2),
quote:"0x"+h.slice((row+3*32+12)*2,(row+4*32)*2),
isNFT:f(4)!==0n,
anyId:f(5)!==0n,
remaining:f(7),
initial:f(8),
price:f(9),
proceeds:f(10),
expiry:f(12),
tDec:dec(13),qDec:dec(14),
tSym:txt(15),qSym:txt(16),
});
}catch{continue}
}
return out;
}catch{return out}
}
async function collectionFloor(collection,quote=ZERO){
if(FLOORVIEW===ZERO||FLOOR===ZERO)return[];
const data="0x"+SEL_COLL_BIDS+encAddr(FLOOR)+encAddr(collection)+encAddr(quote)
+encUint(0)+encUint(16)+encUint(256);
const raw=await rpc(C,[{to:FLOORVIEW,data},L]).catch(()=>null);
if(!raw)return[];
const rows=decBidRows(raw);
return rows.filter(r=>r.anyId&&r.remaining>0n)
.sort((a,b)=>{const l=b.proceeds*a.remaining,r=a.proceeds*b.remaining;return l>r?1:l<r?-1:0});
}
async function floorCandidates(tokenIn,tokenOut,block){
const bin=tokenIn===ZERO?WETH:tokenIn,bout=tokenOut===ZERO?WETH:tokenOut;
const data="0x"+SEL_FLOOR_CANDS+encAddr(FLOOR)+encAddr(bin)+encAddr(bout)
+encUint(0)+encUint(64)+encUint(512);
const raw=await rpc(C,[{to:FLOORVIEW,data},block]).catch(()=>null);
if(!raw)return[];
const out=[];
for(const b of decBidRows(raw)){
if(b.isNFT||b.remaining<=0n||b.initial<=0n||b.price<=0n||b.proceeds<=0n)continue;
if(b.token.toLowerCase()!==bin.toLowerCase())continue;
if(b.quote.toLowerCase()!==bout.toLowerCase())continue;
out.push({
id:b.id,board:FLOOR,floor:1,v2:0,dutch:0,
maker:b.bidder,pf:1,exp:b.expiry,nA:0,nB:0,cp:ZERO,
tA:b.quote,aA:b.proceeds,sA:b.qSym,dA:b.qDec,
tB:b.token,aB:b.remaining,sB:b.tSym,dB:b.tDec,
price:b.price,initial:b.initial,
});
}
return out;
}
function floorGet(o,pay){return o.price*pay/o.initial}
function floorPay(o,want){
if(want<=0n)return 0n;
const g=(want*o.initial+o.price-1n)/o.price;
return g>o.aB?o.aB:g;
}
function rowGet(o,pay){return o.floor?floorGet(o,pay):o.aA*pay/o.aB}
function decViewPage(hex){
const h=strip0x(hex),bytes=h.length/2;
const word=b=>{if(b<0||b+32>bytes)throw Error("bad lens page");return BigInt("0x"+h.slice(b*2,(b+32)*2))};
const addr=(b)=>"0x"+h.slice((b+12)*2,(b+32)*2);
const arr=Number(word(0)),next=word(32);
if(!Number.isSafeInteger(arr)||arr<64||arr+32>bytes)throw Error("bad lens offset");
const n=Number(word(arr)),head=arr+32;
if(!Number.isSafeInteger(n)||n>256||head+n*32>bytes)throw Error("bad lens length");
const text=(base,k)=>{const off=Number(word(base+k*32)),p=base+off,len=Number(word(p));
if(!Number.isSafeInteger(off)||!Number.isSafeInteger(len)||p+32+len>bytes)throw Error("bad lens string");
const cap=Math.min(len,1024),a=new Uint8Array(cap);
for(let i=0;i<cap;i++)a[i]=parseInt(h.slice((p+32+i)*2,(p+33+i)*2),16);
return new TextDecoder().decode(a)};
const rows=[];
const dec=v=>{const d=Number(v);return Number.isInteger(d)&&d>=0&&d<=36?d:null};
for(let i=0;i<n;i++){
try{
const off=Number(word(head+i*32)),b=head+off;
if(!Number.isSafeInteger(off)||b+16*32>bytes)throw Error("bad lens row");
rows.push({id:word(b),maker:addr(b+32),pf:word(b+64)===1n,exp:word(b+96),
nA:word(b+128)===1n,nB:word(b+160)===1n,cp:addr(b+192),
tA:addr(b+224),aA:word(b+256),sA:safeSym(text(b,9)),dA:dec(word(b+320)),
tB:addr(b+352),aB:word(b+384),sB:safeSym(text(b,13)),dB:dec(word(b+448)),board:addr(b+480)});
}catch{continue}
}
return{rows,next};
}
const betterRate=(a,b)=>a.aA*b.aB>b.aA*a.aB;
const bookShare=(h,amm)=>{
const rest=h.ammIn!==undefined?h.ammIn:h.ammOut;
if(!rest)return"Orderbook";
const mine=h.ammIn!==undefined?h.bookIn:h.bookOut;
const pct=Number(mine*100n/(mine+rest));
return`Orderbook ${pct<1?"<1":pct}% + ${amm}`;
};
const MAX_BOOK_LEGS=32,AON_PAIR_SEEDS=24;
function planBookExactIn(rows,amountIn,ammOut,ammIn){
if(!amountIn||!ammIn)return null;
let c=rows.filter(o=>!o.nA&&!o.nB&&o.aA&&(o.aB||o.dutch)&&(o.pf||o.aB<=amountIn)
&&(!o.floor||(o.price>0n&&o.initial>0n))
&&!(account&&o.maker&&o.maker.toLowerCase()===account.toLowerCase()));
const candidateCapped=c.length>256;
const aonCount=c.reduce((n,o)=>n+!o.pf,0);
const aonBounded=aonCount>=3;
c.sort((a,b)=>betterRate(a,b)?-1:betterRate(b,a)?1:0);
if(c.length>256)c.length=256;
const build=(seed=-1,seed2=-1)=>{
let rem=amountIn,bin=0n,bout=0n,fills=[],legCapped=false;
const take=o=>{
if(o.aA*ammIn<=ammOut*o.aB)return;
if(!o.pf&&o.aB>rem)return;
if(fills.length>=MAX_BOOK_LEGS){legCapped=true;return}
if(o.aB===0n){
fills.push({id:o.id,board:o.board,pay:0n,get:o.aA,part:false});
bout+=o.aA;return;
}
const pay=o.aB<rem?o.aB:rem;
if(!pay)return;
const get=o.pf?(pay===o.aB?o.aA:rowGet(o,pay)):o.aA;
if(!get)return;
fills.push({id:o.id,board:o.board,pay,get,part:o.pf&&pay<o.aB});
rem-=pay;bin+=pay;bout+=get;
};
if(seed>=0)take(c[seed]);
if(seed2>=0)take(c[seed2]);
for(let i=0;i<c.length;i++)if(i!==seed&&i!==seed2)take(c[i]);
return{fills,bookIn:bin,bookOut:bout,ammIn:rem,score:bout+rem*ammOut/ammIn,
bounded:candidateCapped||aonBounded||legCapped};
};
let best=build(-1);
for(let i=0;i<c.length;i++)if(!c[i].pf){
const p=build(i);if(p.score>best.score)best=p;
}
const aon=[];for(let i=0;i<c.length&&aon.length<AON_PAIR_SEEDS;i++)if(!c[i].pf)aon.push(i);
for(let i=0;i<aon.length;i++)for(let j=i+1;j<aon.length;j++){
const p=build(aon[i],aon[j]);if(p.score>best.score)best=p;
}
return best.fills.length?best:null;
}
const cheaperRate=(a,b)=>a.aB*b.aA<b.aB*a.aA;
function planBookExactOut(rows,amountOut,ammIn,ammOut){
if(!amountOut||!ammOut)return null;
let c=rows.filter(o=>!o.nA&&!o.nB&&o.aA&&(o.aB||o.dutch)&&(o.pf||o.aA<=amountOut)
&&(!o.floor||(o.price>0n&&o.initial>0n))
&&!(account&&o.maker&&o.maker.toLowerCase()===account.toLowerCase()));
const candidateCapped=c.length>256;
const aonCount=c.reduce((n,o)=>n+!o.pf,0);
const aonBounded=aonCount>=3;
c.sort((a,b)=>cheaperRate(a,b)?-1:cheaperRate(b,a)?1:0);
if(c.length>256)c.length=256;
const build=(seed=-1,seed2=-1)=>{
let left=amountOut,bin=0n,bout=0n,fills=[],legCapped=false;
const take=o=>{
if(o.aB*ammOut>=ammIn*o.aA)return;
if(!o.pf&&o.aA>left)return;
if(fills.length>=MAX_BOOK_LEGS){legCapped=true;return}
const want=o.aA<left?o.aA:left;
let pay,get;
if(o.aB===0n){pay=0n;get=want}
else if(want===o.aA){pay=o.aB;get=o.aA}
else if(o.floor){
pay=floorPay(o,want);
get=floorGet(o,pay);
}
else{
pay=(want*o.aB+o.aA-1n)/o.aA;
if(pay>o.aB)pay=o.aB;
get=pay*o.aA/o.aB;
}
if(!get)return;
fills.push({id:o.id,board:o.board,pay,get,part:want!==o.aA});
bin+=pay;bout+=get;left-=get<left?get:left;
};
if(seed>=0)take(c[seed]);
if(seed2>=0)take(c[seed2]);
for(let i=0;i<c.length&&left;i++)if(i!==seed&&i!==seed2)take(c[i]);
return{fills,bookIn:bin,bookOut:bout,ammOut:left,score:bin+left*ammIn/ammOut,
bounded:candidateCapped||aonBounded||legCapped};
};
let best=build(-1);
for(let i=0;i<c.length;i++)if(!c[i].pf){
const p=build(i);if(p.score<best.score)best=p;
}
const aon=[];for(let i=0;i<c.length&&aon.length<AON_PAIR_SEEDS;i++)if(!c[i].pf)aon.push(i);
for(let i=0;i<aon.length;i++)for(let j=i+1;j<aon.length;j++){
const p=build(aon[i],aon[j]);if(p.score<best.score)best=p;
}
return best.fills.length?best:null;
}
function encFillPlan(fills,tokenIn,tokenOut,recipient,refundTo,deadline){
let tail=encUint(fills.length);
for(const f of fills)tail+=encUint(f.id)+encAddr(f.board)+encUint(f.pay)+encUint(f.get)+encBool(f.part);
return"0x"+SEL_FILLPLAN+encAddr(tokenIn)+encAddr(tokenOut)+encAddr(recipient)+encAddr(refundTo)
+encUint(deadline)+encUint(192)+tail;
}
const BOL_OK=new Set(["6e0a4f98","afeae12b","21c0dad2","ea598cb0","de0e9a3e","8b64ad55","cb924a09","ad33b1d0","dc2c256f","47e7ef24"]);
const bolOk=cd=>{if(chainCfg().sweep4)return true;
const walk=h=>{h=strip0x(h||"");const sel=h.slice(0,8);if(sel!==SEL_MULTICALL)return BOL_OK.has(sel);
try{const t=h.slice(8),n=Number(BigInt("0x"+t.slice(64,128)));if(!n)return false;
for(let i=0;i<n;i++){const off=Number(BigInt("0x"+t.slice(128+i*64,192+i*64)))*2+128;
const len=Number(BigInt("0x"+t.slice(off,off+64)))*2;if(!walk(t.slice(off+64,off+64+len)))return false}
return true}catch{return false}};
return walk(cd)};
function encFillPlanAndSwap(fills,tokenIn,tokenOut,recipient,refundTo,deadline,ammIn,ammData){
let ft=encUint(fills.length);
for(const f of fills)ft+=encUint(f.id)+encAddr(f.board)+encUint(f.pay)+encUint(f.get)+encBool(f.part);
const d=strip0x(ammData||"0x"),dt=encUint(d.length/2)+d.padEnd(Math.ceil(d.length/64)*64,"0");
return"0x"+SEL_FILLPLAN_SWAP+encAddr(tokenIn)+encAddr(tokenOut)+encAddr(recipient)+encAddr(refundTo)
+encUint(deadline)+encUint(256)+encUint(ammIn)+encUint(256+ft.length/2)+ft+dt;
}
function encSnwap(tokenIn,amountIn,recipient,tokenOut,minOut,executor,data){
const d=strip0x(data),body=encUint(d.length/2)+d.padEnd(Math.ceil(d.length/64)*64,"0");
return"0x"+SEL_SNWAP+encAddr(tokenIn)+encUint(amountIn)+encAddr(recipient)+encAddr(tokenOut)
+encUint(minOut)+encAddr(executor)+encUint(224)+body;
}
const encCheckpoint=(executor,token,recipient)=>encSnwap(
ZERO,0n,recipient,ZERO,0n,executor,"0x"+SEL_CHECKPOINT+encAddr(token)
);
const SEL_SWEEP3="dc2c256f";
const encSweep=(token,amount,to)=>chainCfg().sweep4
?"0x"+SEL_SWEEP+encAddr(token)+encUint(0)+encUint(amount)+encAddr(to)
:"0x"+SEL_SWEEP3+encAddr(token)+encUint(amount)+encAddr(to);
function encPermit2Hybrid(ammData,fills,tokenIn,tokenOut,recipient,refundTo,deadline,bookIn,bookOut){
const bookData=encFillPlan(fills,tokenIn,tokenOut,recipient,refundTo,deadline);
const steps=[encCheckpoint(SWAPBOL,tokenIn,refundTo)];
if(bookIn)steps.push(encSweep(tokenIn,bookIn,SWAPBOL));
steps.push(encSnwap(ZERO,0n,recipient,tokenOut,bookOut,SWAPBOL,bookData));
if(ammData&&ammData!=="0x")steps.push(ammData);
steps.push(encSweep(tokenIn,0n,refundTo));
return encCalls(steps);
}
async function swapCandidates(tokenIn,tokenOut,block){
if(tokenOut===ZERO&&tokenIn.toLowerCase()===WETH.toLowerCase())return[];
const key=tokenIn.toLowerCase()+":"+tokenOut.toLowerCase(),old=candCache[key];
if(old&&Date.now()-old.at<15000&&old.block===block){
old.rows.incomplete=old.incomplete;old.rows.unavailable=old.unavailable;
return old.rows;
}
const snapshotAt=Date.now();
const boardIn=tokenIn===ZERO?WETH:tokenIn;
const boardOut=tokenOut===ZERO?WETH:tokenOut;
const [lc,le,ld]=await Promise.all([
hasCode(SBVIEW),hasCode(SWAPBOL),
DUTCH!==ZERO?hasCode(DUTCH):false
]);
if(!lc||!le){
const rows=[];rows.unavailable=true;return rows;
}
const specs=[...BOARDS()];
if(ld){
specs.push({a:DUTCH,dutch:1,ti:tokenIn});
if(tokenIn===ZERO)specs.push({a:DUTCH,dutch:1,ti:WETH});
}
const groups=await Promise.all(specs.map(async b=>{
let cursor=0n,out=[],turns=0,incomplete=false,failed=false;
try{do{
const ti=b.dutch?b.ti:boardIn,to=boardOut;
const data="0x"+(b.dutch?SEL_DUTCH_CANDS:SEL_CANDS)+encAddr(b.a)
+(b.dutch?"":encBool(b.v2))+encAddr(ti)+encAddr(to)+encAddr(SWAPBOL)
+encUint(cursor)+encUint(512);
const p=decViewPage(await rpc(C,[{to:SBVIEW,data},block]));
out.push(...p.rows.map(r=>({...r,v2:b.v2||0,dutch:b.dutch||0})));
cursor=p.next;
++turns;
}while(cursor&&turns<64)}catch{failed=true;incomplete=true}
incomplete=incomplete||!!cursor;
return{out,incomplete,failed};
}));
let rows=groups.flatMap(g=>g.out);
if(tokenIn===ZERO&&tokenOut.toLowerCase()===WETH.toLowerCase()){
rows=rows.filter(r=>r.dutch&&r.tA.toLowerCase()===WETH.toLowerCase()&&r.tB===ZERO);
}
else if(await floorRoutable(block)){
rows=rows.concat(await floorCandidates(tokenIn,tokenOut,block).catch(()=>[]));
}
const incomplete=groups.some(g=>g.incomplete);
const unavailable=groups.every(g=>g.failed&&!g.out.length);
rows.incomplete=incomplete;
rows.unavailable=unavailable;
const current=candCache[key],bn=BigInt(block),cn=current?BigInt(current.block):-1n;
if(!current||bn>cn||(bn===cn&&snapshotAt>=current.at)){
candCache[key]={at:snapshotAt,block,rows,incomplete,unavailable};
}
for(const k in candCache)if(k!==key&&snapshotAt-candCache[k].at>60000)delete candCache[k];
return rows;
}
async function lensBookRows(my){
const [sv,dv]=await Promise.all([hasCode(SBVIEW),DUTCH!==ZERO?hasCode(DUTCH):false]);
if(!sv)return null;
const specs=[...BOARDS()];
if(dv)specs.push({a:DUTCH,dutch:1});
const pages=await Promise.all(specs.map(async b=>{
let cursor=0n,out=[],turns=0;
do{
const data="0x"+(b.dutch?SEL_RECENT_DUTCH:SEL_RECENT)+encAddr(b.a)
+(b.dutch?"":encBool(b.v2))+encUint(cursor)+encUint(80)+encUint(256);
const p=decViewPage(await rpc(C,[{to:SBVIEW,data},L]));
out.push(...p.rows.map(r=>({...r,v2:b.v2||0,dutch:b.dutch||0})));
cursor=p.next;
}while(cursor&&out.length<160&&++turns<64&&my===bookSeq);
if(cursor)out.capped=true;
return out;
}));
const rows=pages.flat();
let capped=pages.some(p=>p.capped);
try{
for(const r of decViewPage(await rpc(C,[{to:SBVIEW,
data:"0x"+SEL_EXPIRED+encAddr(SB2)+encUint(0)+encUint(80)+encUint(256)},L])).rows)
if(r.maker&&r.maker.toLowerCase()===me())rows.push({...r,v2:1,dutch:0});
}catch{}
if(FLOOR!==ZERO&&FLOORVIEW!==ZERO){
await floorRoutable(L);
try{
const raw=await rpc(C,[{to:FLOORVIEW,
data:"0x"+SEL_RECENT_FLOOR+encAddr(FLOOR)+encUint(0)+encUint(80)+encUint(256)},L]);
for(const b of decBidRows(raw)){
if(b.remaining<=0n)continue;
rows.push({
id:b.id,board:FLOOR,floor:1,v2:0,dutch:0,
maker:b.bidder,pf:b.isNFT?0:1,exp:b.expiry,
nA:0,nB:0,cp:ZERO,
tA:b.quote,aA:b.proceeds,sA:b.qSym,dA:b.qDec,
tB:b.token,aB:b.remaining,sB:b.tSym,dB:b.isNFT?0:b.tDec,
price:b.price,initial:b.initial,anyId:b.anyId,isNFT:b.isNFT?1:0,
});
}
}catch{}
}
if(dv&&account)try{
const total=Number(BigInt(await rpc(C,[{to:DUTCH,data:"0x"+SEL_NEXTID2},L])||"0x0"));
const ids=[];for(let i=total-1;i>=Math.max(0,total-40);--i)ids.push(i);
if(ids.length){
const res=await mc3Deep(ids.map(id=>({to:DUTCH,data:"0x"+SEL_DUTCH_LISTING+encUint(id)})));
const now=BigInt(Math.floor(Date.now()/1e3)),me2=me();
for(let i=0;i<ids.length;i++){
const s=strip0x(res[i]||"0x");if(s.length<704)continue;
const w=k=>BigInt("0x"+s.slice(k*64,(k+1)*64)),ad=k=>"0x"+s.slice(k*64+24,(k+1)*64);
if(ad(0).toLowerCase()!==me2)continue;
const exp=w(10);if(!exp||now<=exp)continue;
const rem=w(9);if(!rem)continue;
rows.push({id:ids[i],board:DUTCH,dutch:1,v2:0,maker:ad(0),pf:1,exp,
nA:0,nB:0,cp:ZERO,tA:ad(4),aA:rem,sA:null,dA:null,tB:ad(6),aB:0n,sB:null,dB:null});
}
}}catch{}
if(FLOOR!==ZERO&&account)try{
const total=Number(BigInt(await rpc(C,[{to:FLOOR,data:"0x"+SEL_NEXTID2},L])||"0x0"));
const ids=[];for(let i=total-1;i>=Math.max(0,t