igneum/scene/live-dag.js
igneum-labs 2c58912211 Live proving feed: the page says when its shard states are stale, and a chain block with an empty plan reads "no shards in this block" (8 October 2026, main's order: the project lead wants to watch proving and shards in real time; a stale snapshot must read as stale). Reading of the day: /api/live's proven and paid states come from the Devnet 3 observer's own node on igneum-build-1 (igneum-observer-node-dn3, EVM 26850), not from hub-1; that node stopped crediting payouts at 23:57Z on 7 October (paidShards frozen at 7,304 while blocks carried 8,457 proof records by 03:00Z and hub-1 counted 11,861 by 08:56Z), and the page kept showing the paid total as fresh. site/lib/proving-health.mjs (tests known-failed first: "Cannot find module", then 10 green on build-2): stale when the observer's last status read is over 60 s old (status_at, new in the observer's live_state.proving), when the node's tip trails the newest block by over 300 DAA, or when blocks carried proof records in the last 10 minutes and no shard moved to verified or paid for 10 minutes (the blind-to-records class); a quiet chain is not stale for lack of credits. /api/live carries stale, stale_reason, status_age_s, tip_lag_daa, records_10m and last_change_at on proving (two more indexed readings; scene/feed-contract.json lists the keys; the recorded fixture carries them). /live: the Proven tile's line reads "proving feed stale: ..." in ember, else "... last credit N s ago"; the inspector's count adds "feed stale". Scene 2.0.7: a chain block whose plan is known (block.number set, carried as plan on the normalised block) and empty reads "no shards in this block"; loading and late stay for an unread plan (shard-words test, known-failed on 2.0.6). Gate: the health test joins the site unit-test line.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-08 09:12:56 +00:00

429 lines
45 KiB
JavaScript

/* Igneum DAG / Ember 2.0 (the EMBER 02 renderer pack, 7 Oct 2026). THE SHARED SOURCE: scene/live-dag.js; site/live-dag.js and
* app/igneum-app/ui/live-dag.js are byte-equal copies written by tools/scene/sync.mjs (the gate refuses a drifted copy). Edit here.
* 2.0.7 (8 Oct 2026): a chain block whose plan is known (block.number set, carried as plan on the normalised block) and empty reads
* "no shards in this block"; the loading and late sentences stay for a plan the observer has not read; the fixed sentence of 2.0.5 is gone.
* 2.0.6 (7 Oct 2026): IgneumDag.shardWords(block, nowMs) is the one shard sentence (tooltip, /live inspector, app inspector); the
* empty case reads from the block's facts (loading, excluded, not yet ordered, off the chain) instead of one fixed sentence.
* 2.0.5 (key-22, 7 Oct 2026): IgneumDag.legend({mine}) and renderLegend(el,{mine}) are the one key both pages render; the app's
* Included swatch had been ember while the scene draws included blocks in --included, and "pending" lower-case.
* 2.0.4 (7 Oct 2026): the box's height follows the lanes. laneHeight (default 46 px, 40 on a phone, 26 compact) times the lanes
* shown (at most maxLanes, narrowLanes on a phone, never under 2) plus the axis and padding is the scene's wanted height;
* onSize(heightPx, {lanes, laneHeight, narrow, compact}) reports it whenever it changes, so a page can size the box, and with
* autoHeight (true by default when the host set no CSS height on the canvas, forced either way by the option; never in
* compact mode, the app's card keeps its own height) the renderer sets canvas.style.height itself and lets every lane through.
* 2.0.3 (scene parity, 7 Oct 2026): (1) every push, size and theme change paints the current picture at once; only the motion
* loop waits for a visible document and an intersecting canvas (a page that loads with document.hidden true, or whose embedder
* never fires visibilitychange, showed a blank canvas while reporting live). (2) The narrow (phone) rule keys on the viewport
* width, not the canvas width: a 640 px hero on a laptop is not a phone. The narrow options of 2.0.2 (narrow, narrowBreak 720,
* narrowWindow 30, narrowLanes 4, narrowMinNode 11; on a phone the window shortens until the viewer sets one, four lanes, bigger
* nodes, no hairlines but the selected chain, checkpoint labels as the percent) and the real-data presentation options of 2.0.1:
* maxLanes (own key + top keys + others, default 7), minNode (node half-size floor, default 9.5), hairlineAlpha (non-chain
* edges, default .12, drawn only within laneReach lanes, default 2, and only a merged block's first parent unless selected),
* othersScale (the others lane's size and alpha, default .75), provenGlow (a glow and ring on proven blocks, default on).
* Replacement for the supplied live-dag.js. No framework, network writes or synthetic records.
* Existing mount/push options and public methods are retained; see README.md for additions.
* Every node, parent edge, proof segment and checkpoint is derived from the observer reply.
* Motion interpolates presentation ONLY. It never promotes proof, inclusion or finality.
*/
(function (root) {
'use strict';
var instances = new WeakMap();
var TAU = Math.PI * 2;
function clamp(n, a, b) { return Math.max(a, Math.min(b, n)); }
function finite(v) { return typeof v === 'number' && Number.isFinite(v); }
function num(v) { return finite(v) ? v : null; }
function fmt(v) { return v == null ? 'unknown' : Number(v).toLocaleString('en-GB'); }
function rgba(c, a) {
var s = String(c).trim(), h = s.replace('#', ''), rgb;
if (/^#[0-9a-f]{3}$/i.test(s)) h = h.split('').map(function (x) { return x + x; }).join('');
if (/^[0-9a-f]{6}$/i.test(h)) return 'rgba(' + parseInt(h.slice(0,2),16) + ',' + parseInt(h.slice(2,4),16) + ',' + parseInt(h.slice(4,6),16) + ',' + a + ')';
rgb = s.match(/^rgba?\(\s*([\d.]+)[,\s]+([\d.]+)[,\s]+([\d.]+)/i);
return rgb ? 'rgba(' + rgb[1] + ',' + rgb[2] + ',' + rgb[3] + ',' + a + ')' : s;
}
function rounded(ctx, x, y, w, h, r) {
r = Math.max(0, Math.min(r, w/2, h/2)); ctx.beginPath(); ctx.moveTo(x+r,y);
ctx.arcTo(x+w,y,x+w,y+h,r); ctx.arcTo(x+w,y+h,x,y+h,r);
ctx.arcTo(x,y+h,x,y,r); ctx.arcTo(x,y,x+w,y,r); ctx.closePath();
}
function cloneBlock(b) {
return {hash:b.hash,ts:b.ts,blue_score:b.blue_score,blue:b.blue_score,daa:b.daa,
parents:b.parents.slice(),chain:b.chain,color:b.color,miner:b.miner,locked:b.locked,
final:b.final,proven:b.proven,plan:b.plan,shards:b.shards.map(function(s){return {state:s.state};})};
}
function normalize(b) {
if (!b || typeof b.hash !== 'string' || !b.hash.length || b.hash.length>256 || !finite(b.ts) || b.ts<0) return null;
return {hash:b.hash,ts:b.ts,blue_score:num(b.blue_score),daa:num(b.daa),
parents:Array.isArray(b.parents)?Array.from(new Set(b.parents.filter(function(p){return typeof p==='string' && p!==b.hash;}))).slice(0,128):[],
chain:b.chain===true,color:['blue','red','pending'].includes(b.color)?b.color:'pending',
miner:typeof b.miner==='string'?b.miner.slice(0,256):'unknown',locked:b.locked===true,final:b.final===true,proven:b.proven===true,plan:finite(b.number),
shards:Array.isArray(b.shards)?b.shards.slice(0,256).map(function(s){return {state:s && ['planned','proving','verified','paid'].includes(s.state)?s.state:'unknown'};}):[]};
}
function mount(canvas, opts) {
opts=opts||{};
if (!canvas || typeof canvas.getContext!=='function') throw new TypeError('IgneumDag.mount requires a canvas element.');
if (instances.has(canvas)) instances.get(canvas).destroy();
var ctx=canvas.getContext('2d'); if(!ctx) throw new Error('A 2D canvas context is required.');
var doc=canvas.ownerDocument, compact=!!opts.compact;
var windowS=clamp(finite(opts.window)?opts.window:(compact?90:120),30,300);
var maxBlocks=clamp(finite(opts.maxBlocks)?opts.maxBlocks:6000,100,20000);
var lag=finite(opts.lagMs)?clamp(opts.lagMs,0,10000):2500;
var fps=clamp(finite(opts.fps)?opts.fps:30,10,60), minFrame=1000/fps;
// narrow (phones, under narrowBreak px, or opts.narrow true/false): window narrowWindow s until the viewer sets one, at most
// narrowLanes lanes, nodes no smaller than narrowMinNode, hairlines off except the selected chain and the selected block,
// checkpoint labels as the percent alone. The owner's call of 7 Oct 2026: faster drift, more gap, on a phone.
var narrow=false,narrowBreak=finite(opts.narrowBreak)?opts.narrowBreak:720,narrowWindow=clamp(finite(opts.narrowWindow)?opts.narrowWindow:30,30,300),narrowLanes=clamp(finite(opts.narrowLanes)?opts.narrowLanes:4,2,12),narrowMinNode=finite(opts.narrowMinNode)?opts.narrowMinNode:11,baseWindow=0,windowTouched=false;
// autoHeight: the host set no height on the canvas (its computed height is still the attribute's, 150 by default) and this
// is not the compact card; read before size() touches the attribute
var hostHeightSet=(function(){try{var cs=getComputedStyle(canvas),attr=canvas.getAttribute('height'),h=parseFloat(cs.height);return canvas.style.height!==''||!(finite(h)&&Math.round(h)===(attr===null?150:Number(attr)));}catch(e){return true;}})();
var autoHeight=opts.autoHeight===true||(opts.autoHeight!==false&&!compact&&!hostHeightSet),laneHeightOpt=finite(opts.laneHeight)?opts.laneHeight:0,wantH=0,laneHNow=46;
var maxLanes=clamp(finite(opts.maxLanes)?opts.maxLanes:7,2,12), minNode=finite(opts.minNode)?opts.minNode:9.5, hairAlpha=finite(opts.hairlineAlpha)?opts.hairlineAlpha:.12, laneReach=finite(opts.laneReach)?opts.laneReach:2, othersScale=finite(opts.othersScale)?opts.othersScale:.75, provenGlow=opts.provenGlow!==false;
var mq=root.matchMedia?root.matchMedia('(prefers-reduced-motion: reduce)'):null;
var reduced=mq?mq.matches:false, manualMotion=true;
var mediaTheme=root.matchMedia?root.matchMedia('(prefers-color-scheme: dark)'):null;
var col={}, W=0,H=0,dpr=1,padL=100,padR=22,padT=57,padB=37;
var model=new Map(), view=new Map(), blocks=[], cps=[], latestCps=[], lanes=[], laneOf=new Map();
var state='connecting',reason='Waiting for observer',destroyed=false,paused=false,following=true,engaged=false;
var fixedRight=0,pausedRight=0,staleRight=null,reducedRight=Date.now()-lag, lastGood=0, lastData=null;
var selected=null,hover=null,filter='all',queuedCount=0,invalid=0,omitted=0;
var visible=true,raf=0,lastPaint=-Infinity,frameCount=0,lastT=0,freezeT=0;
var pollTimer=0,healthTimer=0,timeout=0,controller=null,inflight=false,pollAgain=false,failures=0;
var remove=[],ro=null,io=null,mo=null,drag=null,pinch=null;
var lastCheckpointStates=new Map(),checkpointBursts=new Map();
var initialAttributes={tabindex:canvas.getAttribute('tabindex'),role:canvas.getAttribute('role'),label:canvas.getAttribute('aria-label'),touch:canvas.style.touchAction,cursor:canvas.style.cursor};
var tip=opts.tooltip||null,chip=opts.chip||null;
var mine=typeof opts.mine==='function'?opts.mine:opts.mine?function(b){return b.miner===opts.mine;}:function(){return false;};
function own(b){try{return !!mine(b);}catch(e){return false;}}
function emit(name){if(destroyed || typeof opts[name]!=='function')return;var args=[].slice.call(arguments,1);try{opts[name].apply(null,args);}catch(e){console.error('IgneumDag '+name+' callback:',e);}}
function on(target,name,handler,config){target.addEventListener(name,handler,config);remove.push(function(){target.removeEventListener(name,handler,config);});}
function theme(){
var s=getComputedStyle(doc.documentElement);
function c(n,f){return s.getPropertyValue(n).trim()||f;}
col={ember:c('--ember','#F2541B'),emberHi:c('--ember-hi','#FF6A2B'),molten:c('--molten','#FFB35C'),
bone:c('--bone','#F4F1EC'),ash:c('--ash','#9A9A9E'),line:c('--line','#2A2A30'),line2:c('--line-2','#3A3A42'),
bg:c('--row',c('--obsidian','#111114')),blue:c('--included','#3B7DD8'),red:c('--excluded','#B0362B'),
surface:c('--graphite','#16161A')};
paint();redraw();
}
function rightTime(){
if(paused)return pausedRight;
if(!following)return fixedRight;
if(state!=='live' && staleRight!==null)return staleRight;
return reduced||!manualMotion?reducedRight:Date.now()-lag;
}
function viewportW(){var w=root.innerWidth||(doc.documentElement?doc.documentElement.clientWidth:0);return w>0?w:W;}
function xOf(ts,right){return padL+(W-padL-padR)*(1-(right-ts)/(windowS*1000));}
function eventXY(ev){var r=canvas.getBoundingClientRect();return {x:(ev.clientX-r.left)*W/(r.width||1),y:(ev.clientY-r.top)*H/(r.height||1)};}
function setState(s,r){
if(state===s && reason===r)return;
if(s!=='live' && state==='live')staleRight=rightTime();
state=s;reason=r||null;
if(s==='live')staleRight=null;
emit('onState',s,reason);redraw();
}
function layout(){
if(!baseWindow)baseWindow=windowS;
var wasNarrow=narrow;narrow=opts.narrow===true||(opts.narrow!==false&&!compact&&W>0&&viewportW()<narrowBreak);
if(narrow!==wasNarrow&&!windowTouched){var nw=narrow?narrowWindow:baseWindow;if(nw!==windowS){windowS=nw;emit('onWindow',windowS);}}
padL=compact||W<510?14:W<750?84:106;padR=compact?12:24;padT=compact?29:58;padB=compact?22:38;
var start=rightTime()-windowS*1000, end=rightTime()+lag+1000,counts=new Map(),mineKeys=new Set();
blocks.forEach(function(b){if(b.ts>=start && b.ts<=end){counts.set(b.miner,(counts.get(b.miner)||0)+1);if(own(b))mineKeys.add(b.miner);}});
var laneH=laneHeightOpt||(compact?26:narrow?40:46),cap=narrow?narrowLanes:maxLanes;laneHNow=laneH;
var capacity=autoHeight?cap:Math.min(cap,Math.max(2,Math.floor((H-padT-padB)/laneH))),ids=Array.from(counts.keys());
ids.sort(function(a,b){return (mineKeys.has(b)?1:0)-(mineKeys.has(a)?1:0)||(counts.get(b)-counts.get(a))||a.localeCompare(b);});
var chosen=ids.slice(0,ids.length>capacity?capacity-1:capacity);
// Preserve existing key order instead of re-ranking every poll. Always keep the user's lane visible.
var keep=lanes.filter(function(id){return chosen.includes(id);});
chosen.forEach(function(id){if(!keep.includes(id))keep.push(id);});
keep.sort(function(a,b){return (mineKeys.has(b)?1:0)-(mineKeys.has(a)?1:0);});
lanes=keep;if(ids.length>chosen.length)lanes.push('__others__');
laneOf=new Map();lanes.forEach(function(id,i){laneOf.set(id,i);});
// the wanted box height for these lanes (2.0.4): reported on change; applied here only under autoHeight
var nextH=padT+padB+Math.max(2,lanes.length)*laneH;
if(nextH!==wantH){wantH=nextH;emit('onSize',wantH,{lanes:lanes.length,laneHeight:laneH,narrow:narrow,compact:compact});if(autoHeight&&canvas.style.height!==wantH+'px')canvas.style.height=wantH+'px';}
var now=performance.now();
blocks.forEach(function(b){var i=laneOf.has(b.miner)?laneOf.get(b.miner):Math.max(0,lanes.length-1);
var y=padT+(i+.5)*(H-padT-padB)/Math.max(1,lanes.length);
if(!finite(b.y)){b.y=y;b.fromY=y;b.targetY=y;}
if(b.targetY!==y){b.fromY=b.y;b.targetY=y;b.laneAt=now;}
});
}
function size(){
if(destroyed)return;
var nextW=canvas.clientWidth,nextH=canvas.clientHeight,nextDpr=Math.min(root.devicePixelRatio||1,2);
if(W===nextW&&H===nextH&&dpr===nextDpr&&canvas.width===Math.round(nextW*nextDpr)){redraw();return;}
W=nextW;H=nextH;dpr=nextDpr;
canvas.width=Math.round(W*dpr);canvas.height=Math.round(H*dpr);ctx.setTransform(dpr,0,0,dpr,0,0);layout();paint();redraw();
}
function syncView(){
var now=performance.now(),first=view.size===0, next=new Map();
model.forEach(function(b,hash){var old=view.get(hash),v=Object.assign({},b);
v.born=old?old.born:first?now-3000:now;v.newArrival=old?old.newArrival:!first;v.visibleAt=old?old.visibleAt:null;v.changed=old && (old.proven!==b.proven||old.locked!==b.locked||old.color!==b.color||old.shards.map(function(s){return s.state;}).join(',')!==b.shards.map(function(s){return s.state;}).join(','))?now:old?old.changed:now-3000;
v.y=old?old.y:NaN;v.fromY=old?old.fromY:NaN;v.targetY=old?old.targetY:NaN;v.laneAt=old?old.laneAt:now;
next.set(hash,v);
});
view=next;blocks=Array.from(view.values()).sort(function(a,b){return a.ts-b.ts||a.hash.localeCompare(b.hash);});
cps=latestCps.map(function(c){return Object.assign({},c);});
cps.forEach(function(c){var prev=lastCheckpointStates.get(c.index);if(prev==='pending'&&c.state==='locked')checkpointBursts.set(c.index,now);lastCheckpointStates.set(c.index,c.state);});
var cpKeys=new Set(cps.map(function(c){return c.index;}));lastCheckpointStates.forEach(function(_,key){if(!cpKeys.has(key)){lastCheckpointStates.delete(key);checkpointBursts.delete(key);}});
layout();
if(selected && !view.has(selected)){selected=null;emit('onSelect',null,'expired');}
else if(selected)emit('onSelect',cloneBlock(view.get(selected)),'update');
if(hover&&!view.has(hover))hover=null;
queuedCount=0;
}
function push(d){
if(destroyed)return false;
if(!d||d.ok!==true||!d.state||typeof d.state!=='object'||!Array.isArray(d.blocks)){
setState('failed','Invalid observer reply; expected {ok, state, blocks}.');return false;
}
var now=Date.now(), incoming=[], bad=0;
d.blocks.forEach(function(b){var n=normalize(b);if(n)incoming.push(n);else bad++;});
if(d.blocks.length && !incoming.length){setState('failed','Observer reply contains no valid block records.');return false;}
invalid=bad;lastGood=now;reducedRight=now-lag;failures=0;lastData=d;
incoming.forEach(function(b){if(!model.has(b.hash))queuedCount++;model.set(b.hash,b);});
var newest=0;model.forEach(function(b){newest=Math.max(newest,b.ts);});
// Bounded retention uses the newest observed header, not a local wall-clock guess.
var cut=newest-340000;model.forEach(function(b,h){if(b.ts<cut)model.delete(h);});
omitted=0;
if(model.size>maxBlocks){var ordered=Array.from(model.values()).sort(function(a,b){return b.ts-a.ts;});omitted=model.size-maxBlocks;model=new Map(ordered.slice(0,maxBlocks).map(function(b){return[b.hash,b];}));}
latestCps=d.finality&&Array.isArray(d.finality.checkpoints)?d.finality.checkpoints.filter(function(c){return c&&finite(c.blue_score)&&['pending','locked'].includes(c.state);}).slice(-128).map(function(c){return {index:c.index,blue_score:c.blue_score,state:c.state,fraction_total:finite(c.fraction_total)&&c.fraction_total>=0&&c.fraction_total<=1?c.fraction_total:null};}):[];
if(d.state.stale){if(staleRight===null)staleRight=Math.min(now-lag,newest?newest+lag:now-lag);setState('stale','Observer stale'+(finite(d.state.age_s)?'; last update '+Math.round(d.state.age_s)+' s ago':''));}
else setState('live',null);
if(!paused)syncView();
emit('onData',d);emit('onStats',stats());if(!paused){/*paint-on-push*/paint();redraw();}return true;
}
function stats(){
var r=rightTime(),v=blocks.filter(function(b){return b.ts>=r-windowS*1000&&b.ts<=r;});
return {blocks:v.length,included:v.filter(function(b){return b.color==='blue';}).length,excluded:v.filter(function(b){return b.color==='red';}).length,
selectedChain:v.filter(function(b){return b.chain;}).length,proven:v.filter(function(b){return b.proven;}).length,
own:v.filter(own).length,minerKeys:new Set(v.map(function(b){return b.miner;})).size,
lockedCheckpoints:cps.filter(function(c){return c.state==='locked';}).length,paused:paused,following:following,queued:paused?queuedCount:0,
invalidRecords:invalid,omittedRecords:omitted,rendered:blocks.length,frames:frameCount,window:windowS,narrow:narrow,lanes:lanes.length,reducedMotion:reduced||!manualMotion,state:state,
// the lane geometry (2.0.4), so a page that sizes its own box reads no constants
laneHeight:laneHNow,padT:padT,padB:padB,capacity:narrow?narrowLanes:maxLanes,wantedHeight:wantH,autoHeight:autoHeight};
}
function poll(){
if(destroyed||opts.poll===false||doc.hidden)return;
if(inflight){pollAgain=true;return;}
clearTimeout(pollTimer);inflight=true;controller=new AbortController();var signal=controller.signal;
timeout=setTimeout(function(){if(controller)controller.abort();},finite(opts.timeoutMs)?opts.timeoutMs:8000);
var url;
try{url=new URL(opts.url||'/api/live',doc.baseURI);if(!['https:','http:'].includes(url.protocol))throw new Error('Use an HTTP(S) observer URL.');url.searchParams.set('window',String(Math.round(windowS)));}
catch(e){finishError(e);return;}
fetch(url.href,{cache:'no-store',signal:signal,credentials:'same-origin'}).then(function(r){if(!r.ok)throw new Error('HTTP '+r.status);return r.json();}).then(function(d){if(destroyed)return;if(!push(d))throw new Error('Invalid observer reply');}).catch(finishError).finally(finish);
function finishError(e){if(destroyed||doc.hidden)return;failures++;setState(failures>=2?'failed':'stale','Observer unavailable; retrying'+(e&&e.name==='AbortError'?' (timeout)':''));if(!url)finish();}
function finish(){clearTimeout(timeout);timeout=0;controller=null;inflight=false;if(destroyed||opts.poll===false||doc.hidden)return;var again=pollAgain;pollAgain=false;pollTimer=setTimeout(poll,again?0:Math.min(30000,2000*Math.pow(2,Math.min(failures,4))));}
}
function passes(b){return filter==='all'||filter==='chain'&&b.chain||filter==='mine'&&own(b);}
function curve(b,p){var mx=(b.x+p.x)/2;ctx.beginPath();ctx.moveTo(p.x,p.y);ctx.bezierCurveTo(mx,p.y,mx,b.y,b.x,b.y);}
function pointOn(b,p,t){var u=1-t,mx=(b.x+p.x)/2;return {x:u*u*u*p.x+3*u*u*t*mx+3*u*t*t*mx+t*t*t*b.x,y:u*u*u*p.y+3*u*u*t*p.y+3*u*t*t*b.y+t*t*t*b.y};}
function lockIcon(x,y,size,color){ctx.strokeStyle=color;ctx.lineWidth=1.25;rounded(ctx,x-size*.42,y,size*.84,size*.65,1.5);ctx.stroke();ctx.beginPath();ctx.arc(x,y,size*.25,Math.PI,0);ctx.stroke();}
function draw(t){
if(destroyed||!W||!H)return;
frameCount++;var rt=rightTime(),left=rt-windowS*1000,animate=!reduced&&manualMotion&&!paused&&state==='live';var clock=paused?freezeT:t;
ctx.setTransform(dpr,0,0,dpr,0,0);ctx.clearRect(0,0,W,H);ctx.fillStyle=col.bg;ctx.fillRect(0,0,W,H);
var plotW=W-padL-padR, plotH=H-padT-padB,lh=plotH/Math.max(1,lanes.length);
// Sparse time ticks; true horizontal coordinate is header time, not DAA spacing.
ctx.lineWidth=1;ctx.setLineDash([2,7]);
for(var g=0;g<=6;g++){var gx=padL+plotW*g/6;ctx.strokeStyle=rgba(col.line,.52);ctx.beginPath();ctx.moveTo(gx,padT-10);ctx.lineTo(gx,H-padB);ctx.stroke();}
ctx.setLineDash([]);
lanes.forEach(function(lane,i){var y=padT+(i+.5)*lh, ownLane=blocks.some(function(b){return b.miner===lane&&own(b);});
if(ownLane){var grad=ctx.createLinearGradient(padL,0,W,0);grad.addColorStop(0,rgba(col.molten,.085));grad.addColorStop(1,rgba(col.molten,.005));ctx.fillStyle=grad;rounded(ctx,padL-5,y-lh*.4,plotW+5,lh*.8,7);ctx.fill();}
ctx.strokeStyle=rgba(ownLane?col.molten:col.line,ownLane?.20:.65);ctx.beginPath();ctx.moveTo(padL,y);ctx.lineTo(W-padR,y);ctx.stroke();
if(padL>50){ctx.font='500 10px ui-monospace, SFMono-Regular, Consolas, monospace';ctx.textBaseline='middle';ctx.textAlign='left';ctx.fillStyle=ownLane?col.molten:col.ash;
ctx.fillText(ownLane?'YOUR KEY':lane==='__others__'?'OTHERS':lane.slice(0,8),12,y-5);
ctx.font='8px ui-monospace, monospace';ctx.fillStyle=rgba(col.ash,.78);ctx.fillText(ownLane?'YOUR BLOCKS':lane==='__others__'?'GROUPED KEYS':'MINER KEY',12,y+10);
}
});
var cpLabels=[];
cps.forEach(function(c){
// Exact score only. Never pin a checkpoint to an unrelated nearest block.
var candidates=blocks.filter(function(b){return b.blue_score===c.blue_score;});
var ref=candidates.find(function(b){return b.locked;})||candidates.find(function(b){return b.chain;})||(candidates.length===1?candidates[0]:null);
if(!ref||ref.ts<left||ref.ts>rt)return;
var x=xOf(ref.ts,rt),locked=c.state==='locked',burstAt=checkpointBursts.get(c.index),burst=animate&&burstAt?Math.max(0,1-(t-burstAt)/1400):0;
var band=ctx.createLinearGradient(x-20,0,x+36,0);band.addColorStop(0,rgba(col.ember,0));band.addColorStop(.38,rgba(col.ember,locked?.09:.035));band.addColorStop(1,rgba(col.ember,0));ctx.fillStyle=band;ctx.fillRect(x-20,padT-12,56,plotH+12);
ctx.strokeStyle=rgba(col.ember,locked?.6:.32);ctx.lineWidth=locked?1.5:1;ctx.setLineDash(locked?[]:[3,6]);ctx.beginPath();ctx.moveTo(x,padT-14);ctx.lineTo(x,H-padB);ctx.stroke();ctx.setLineDash([]);
if(burst>0){ctx.strokeStyle=rgba(col.molten,burst*.5);ctx.lineWidth=1;ctx.strokeRect(x-(1-burst)*42,padT-12,(1-burst)*84,plotH+12);}
if(!compact && (narrow || W>510))cpLabels.push({x:x,cp:c,locked:locked});
});
cpLabels.sort(function(a,b){return b.x-a.x;});var cpLast=Infinity;
cpLabels.forEach(function(p){var pct=p.cp.fraction_total===null||p.cp.fraction_total===undefined?'':Math.round(p.cp.fraction_total*100)+'%',label=narrow?(pct||(p.locked?'LOCKED':'PENDING')):(p.locked?'LOCKED':'PENDING')+(pct?' '+pct:''),w=label.length*5.5+(narrow?14:22),x=clamp(p.x-w/2,padL,W-padR-w);if(x+w+8>cpLast)return;cpLast=x;
ctx.fillStyle=col.bg;ctx.strokeStyle=rgba(col.ember,p.locked?.45:.23);rounded(ctx,x,17,w,22,4);ctx.fill();ctx.stroke();ctx.font='9px ui-monospace, monospace';ctx.fillStyle=p.locked?col.ember:col.ash;ctx.textAlign='center';ctx.textBaseline='middle';ctx.fillText(label,x+w/2,28);
});
// Animate lane transitions without changing their underlying key identity.
blocks.forEach(function(b){b.x=xOf(b.ts,rt);var progress=animate?clamp((clock-b.laneAt)/450,0,1):1;progress=1-Math.pow(1-progress,3);b.y=b.fromY+(b.targetY-b.fromY)*progress;b.on=b.ts>=left&&b.ts<=rt&&passes(b);if(b.on&&b.newArrival&&b.visibleAt===null){b.visibleAt=t;b.born=t;}});
ctx.save();ctx.beginPath();ctx.rect(padL-1,padT-15,plotW+2,plotH+25);ctx.clip();
blocks.forEach(function(b){if(!b.on)return;var bSel=selected&&b.hash===selected;b.parents.forEach(function(hash,pi){var p=view.get(hash);if(!p||!passes(p)||p.x>W-padR||p.x<padL-plotW*.2)return;
var path=b.chain&&p.chain,selectedEdge=selected&&(b.hash===selected||p.hash===selected);
if(!path&&!selectedEdge){if(narrow||pi>0)return;var li=laneOf.has(b.miner)?laneOf.get(b.miner):lanes.length-1,lp=laneOf.has(p.miner)?laneOf.get(p.miner):lanes.length-1;if(Math.abs(li-lp)>laneReach)return;}
if(path||selectedEdge){ctx.strokeStyle=rgba(path?col.ember:col.bone,path?.1:.10);ctx.lineWidth=path?8:4;curve(b,p);ctx.stroke();}
ctx.strokeStyle=rgba(path?col.ember:selectedEdge?col.bone:b.color==='red'?col.red:col.ash,path?.68:selectedEdge?.7:hairAlpha);ctx.lineWidth=path?1.65:selectedEdge?1.4:1;curve(b,p);ctx.stroke();
var age=t-b.born;if(animate&&age>=0&&age<1400){var f=clamp(age/1150,0,1),pt=pointOn(b,p,f);ctx.shadowBlur=10;ctx.shadowColor=path?col.ember:col.blue;ctx.fillStyle=path?col.molten:col.blue;ctx.beginPath();ctx.arc(pt.x,pt.y,path?2.2:1.65,0,TAU);ctx.fill();ctx.shadowBlur=0;}
});});
var S=compact?6.5:narrow?clamp(lh*.24,narrowMinNode,15):clamp(lh*.22,minNode,13);
blocks.forEach(function(b){if(!b.on)return;
var age=t-b.born,newness=animate?Math.max(clamp(1-age/1700,0,1),clamp(1-(t-b.changed)/900,0,1)*.65):0;
var ink=b.color==='red'?col.red:b.chain?col.ember:b.color==='blue'?col.blue:col.ash;
var isOwn=own(b),isSelected=b.hash===selected||b.hash===hover,inOthers=!laneOf.has(b.miner),sz=S*(1+(newness*.15))*(inOthers?othersScale:1);
if(newness>0||isOwn||isSelected){var glow=ctx.createRadialGradient(b.x,b.y,0,b.x,b.y,sz*3.8);glow.addColorStop(0,rgba(isOwn?col.molten:ink,newness*.26+(isSelected?.15:isOwn?.06:0)));glow.addColorStop(1,rgba(ink,0));ctx.fillStyle=glow;ctx.fillRect(b.x-sz*4,b.y-sz*4,sz*8,sz*8);}
ctx.globalAlpha=(b.color==='red'?.78:1)*(inOthers&&!isSelected&&!isOwn?othersScale:1);
// a proven block glows and carries a ring, so the proof reads from across the room
if(provenGlow&&b.proven){var pg=ctx.createRadialGradient(b.x,b.y,0,b.x,b.y,sz*3.2);pg.addColorStop(0,rgba(ink,.26));pg.addColorStop(1,rgba(ink,0));ctx.fillStyle=pg;ctx.fillRect(b.x-sz*3.4,b.y-sz*3.4,sz*6.8,sz*6.8);ctx.strokeStyle=rgba(ink,.6);ctx.lineWidth=1;ctx.beginPath();ctx.arc(b.x,b.y,sz+5,0,TAU);ctx.stroke();}
// Inset tiles: inclusion is the outline; proof is the core, never the same status.
ctx.fillStyle=col.bg;ctx.strokeStyle=rgba(ink,b.chain?.95:.8);ctx.lineWidth=b.chain?1.75:1.25;rounded(ctx,b.x-sz,b.y-sz,2*sz,2*sz,3);ctx.fill();ctx.stroke();
var tile=ctx.createLinearGradient(b.x,b.y-sz,b.x,b.y+sz);tile.addColorStop(0,rgba(ink,b.proven?.5:.16));tile.addColorStop(1,rgba(ink,b.proven?.22:.025));ctx.fillStyle=tile;rounded(ctx,b.x-sz+2,b.y-sz+2,2*sz-4,2*sz-4,2);ctx.fill();
if(b.proven){ctx.strokeStyle=rgba(b.color==='red'?col.red:col.bone,.9);ctx.lineWidth=1.3;ctx.beginPath();ctx.moveTo(b.x-3,b.y);ctx.lineTo(b.x-1,b.y+2);ctx.lineTo(b.x+3,b.y-2);ctx.stroke();}
else if(b.color==='red'){ctx.strokeStyle=ink;ctx.lineWidth=1.1;ctx.beginPath();ctx.moveTo(b.x-2,b.y-2);ctx.lineTo(b.x+2,b.y+2);ctx.moveTo(b.x+2,b.y-2);ctx.lineTo(b.x-2,b.y+2);ctx.stroke();}
else{ctx.fillStyle=rgba(ink,.65);ctx.fillRect(b.x-1.3,b.y-1.3,2.6,2.6);}
if(!compact && b.shards.length){var total=b.shards.length,shown=Math.min(total,8),gap=1.6,barW=2*sz,seg=(barW-gap*(shown-1))/shown;
for(var k=0;k<shown;k++){var shard=b.shards[k].state,alpha=shard==='proving'?(animate?.5+.4*Math.sin(t/300+k):.8):1;
ctx.fillStyle=rgba(shard==='paid'?col.molten:shard==='verified'?col.bone:shard==='proving'?col.ember:col.line2,alpha);ctx.fillRect(b.x-sz+k*(seg+gap),b.y+sz+4,Math.max(1,seg),2);
}
}
if(isOwn){ctx.strokeStyle=col.molten;ctx.lineWidth=1.2;var q=sz+4;ctx.beginPath();[[1,1],[1,-1],[-1,1],[-1,-1]].forEach(function(v){ctx.moveTo(b.x+v[0]*(q-4),b.y+v[1]*q);ctx.lineTo(b.x+v[0]*q,b.y+v[1]*q);ctx.lineTo(b.x+v[0]*q,b.y+v[1]*(q-4));});ctx.stroke();}
if(b.locked){ctx.strokeStyle=rgba(col.ember,.6);ctx.lineWidth=1;ctx.beginPath();ctx.arc(b.x,b.y,sz+8,0,TAU);ctx.stroke();}
if(b.final){ctx.fillStyle=rgba(col.ember,.75);ctx.beginPath();ctx.arc(b.x+sz-1,b.y-sz-2,2,0,TAU);ctx.fill();}
if(isSelected){ctx.strokeStyle=col.bone;ctx.lineWidth=1;ctx.setLineDash([3,3]);rounded(ctx,b.x-sz-8,b.y-sz-8,2*sz+16,2*sz+16,6);ctx.stroke();ctx.setLineDash([]);}
ctx.globalAlpha=1;
});ctx.restore();
// Timeline and feed edge. No fabricated DAA ticks or estimated checkpoint positions.
ctx.font=(compact?'8':'9')+'px ui-monospace, monospace';ctx.fillStyle=col.ash;ctx.textBaseline='middle';
var ticks=W<420?2:4;
for(var q=0;q<=ticks;q++){var tx=padL+plotW*q/ticks;ctx.textAlign=q===0?'left':q===ticks?'right':'center';var label=q===ticks?(paused?'PAUSED':!following?'HISTORY':state==='live'?'OBSERVED NOW':state.toUpperCase()):'-'+Math.round(windowS*(1-q/ticks))+'s';ctx.fillText(label,tx,H-(compact?8:13));}
if(!compact){var visibleBlocks=blocks.filter(function(b){return b.on;});ctx.font='8px ui-monospace, monospace';ctx.textAlign='left';ctx.fillStyle=rgba(col.ash,.8);if(padL>50)ctx.fillText('HEADER TIME',12,H-13);
if(visibleBlocks.length && W>600){var last=visibleBlocks[visibleBlocks.length-1];ctx.textAlign='right';ctx.fillText('DAA '+fmt(last.daa),W-padR,8);}
}
if(state==='live'&&following&&!paused){ctx.strokeStyle=rgba(col.ember,.3);ctx.beginPath();ctx.moveTo(W-padR,padT-9);ctx.lineTo(W-padR,H-padB);ctx.stroke();ctx.fillStyle=col.ember;ctx.beginPath();ctx.arc(W-padR,padT-12,2.3,0,TAU);ctx.fill();}
if(!blocks.some(function(b){return b.on;})){
ctx.textAlign='center';ctx.fillStyle=col.ash;ctx.font='12px system-ui, sans-serif';ctx.fillText(state==='connecting'?'Waiting for observer data':filter==='mine'?'No blocks for your key in this window':filter==='chain'?'No selected-chain blocks in this window':'No blocks in this time window',padL+plotW/2,H/2);
}
var active=selected?view.get(selected):hover?view.get(hover):null;if(active&&active.on)showTip(active);else if(tip)tip.hidden=true;
lastT=t;
}
function continuous(){return !destroyed&&!doc.hidden&&visible&&!paused&&!reduced&&manualMotion&&state==='live'&&blocks.length>0;}
function frame(t){raf=0;if(destroyed||doc.hidden||!visible)return;if(t-lastPaint>=minFrame-.5){draw(t);lastPaint=t;}if(continuous())raf=requestAnimationFrame(frame);}
// one synchronous frame of the current picture, whatever the document's visibility says (2.0.3)
function paint(){if(destroyed||!W||!H)return;var t=performance.now();draw(t);lastPaint=t;}
function redraw(){if(destroyed||raf||doc.hidden||!visible)return;lastPaint=-Infinity;raf=requestAnimationFrame(frame);}
function stopFrame(){if(raf)cancelAnimationFrame(raf);raf=0;}
function words(b,nowMs){
if(!b)return {title:'No block selected',lines:[]};
var inclusion=b.color==='blue'?'included':b.color==='red'?'excluded':'pending';
var bits=[inclusion];if(b.chain)bits.push('selected chain');if(b.proven)bits.push('proven');if(b.locked)bits.push('locked checkpoint');if(b.final)bits.push('final');
return {title:b.hash+' '+bits.join(' / '),lines:[(own(b)?'Your block / ':'')+'miner key '+b.miner,
'Blue score '+fmt(b.blue_score===undefined?b.blue:b.blue_score)+' / DAA '+fmt(b.daa),b.parents.length+' parent'+(b.parents.length===1?'':'s'),
'Shards: '+shardWords(b,nowMs).summary]};
}
function showTip(b){
if(!tip)return;
if(!b){tip.hidden=true;return;}
var w=words(b),key=w.title+'|'+w.lines.join('|');
if(tip.dataset.igneumKey!==key){tip.replaceChildren();var title=doc.createElement('b');title.textContent=w.title;tip.appendChild(title);w.lines.forEach(function(line){var p=doc.createElement('span');p.textContent=line;p.style.display='block';tip.appendChild(p);});tip.dataset.igneumKey=key;}
tip.hidden=false;tip.style.pointerEvents='none';tip.style.position='absolute';tip.style.left='0px';tip.style.top='0px';tip.style.maxWidth=Math.max(160,W-24)+'px';tip.style.whiteSpace='normal';tip.style.overflowWrap='anywhere';
var host=tip.offsetParent||canvas.parentElement,cr=canvas.getBoundingClientRect(),pr=host.getBoundingClientRect();
var tw=tip.offsetWidth,th=tip.offsetHeight;var x=clamp(b.x+16,8,Math.max(8,W-tw-8)),y=b.y-th-18;if(y<8)y=Math.min(H-th-8,b.y+22);
tip.style.transform='translate('+Math.round(cr.left-pr.left-host.clientLeft+x)+'px,'+Math.round(cr.top-pr.top-host.clientTop+Math.max(8,y))+'px)';
}
function hit(ev){var p=eventXY(ev),best=null,dist=22*22;blocks.forEach(function(b){if(!b.on)return;var d=(b.x-p.x)**2+(b.y-p.y)**2;if(d<dist){dist=d;best=b;}});return best;}
function select(hash,why){if(hash!==null&&!view.has(hash))return false;selected=hash;showTip(hash?view.get(hash):null);emit('onSelect',hash?cloneBlock(view.get(hash)):null,why||'select');redraw();return true;}
function engage(onValue){var value=!!onValue;if(engaged===value)return;engaged=value;canvas.classList.toggle('engaged',value);if(chip)chip.hidden=!value;emit('onEngage',value);}
function setWindow(seconds){var n=Math.round(clamp(seconds,30,300));if(!finite(n)||n===windowS)return;windowTouched=true;windowS=n;layout();emit('onWindow',n);emit('onStats',stats());poll();redraw();}
function zoom(f){if(!finite(f)||f<=0)return;setWindow(windowS*f);}
function follow(){following=true;fixedRight=0;if(paused)pausedRight=Date.now()-lag;layout();emit('onFollow',true);redraw();}
function setPaused(p){p=!!p;if(paused===p)return;
if(p){pausedRight=rightTime();freezeT=performance.now();paused=true;stopFrame();}
else{paused=false;syncView();}
if(opts.pauseButton){opts.pauseButton.setAttribute('aria-pressed',String(paused));opts.pauseButton.textContent=paused?'Resume':'Pause';}
emit('onPause',paused);emit('onStats',stats());redraw();
}
function setFilter(value){if(!['all','chain','mine'].includes(value))return;filter=value;select(null,'filter');layout();redraw();}
function setMotion(value){manualMotion=!!value;reducedRight=Date.now()-lag;stopFrame();redraw();}
function panTo(right){following=false;fixedRight=Math.min(right,Date.now()-lag);if(paused)pausedRight=fixedRight;emit('onFollow',false);layout();redraw();}
canvas.setAttribute('tabindex',canvas.getAttribute('tabindex')||'0');canvas.setAttribute('role','img');
if(!canvas.getAttribute('aria-label'))canvas.setAttribute('aria-label','Interactive block graph. Arrow keys inspect blocks. Plus and minus zoom. Space pauses, F follows, Escape releases.');
canvas.style.touchAction='pan-y';
on(canvas,'pointerdown',function(ev){if(ev.pointerType==='touch'||ev.button!==0)return;canvas.focus({preventScroll:true});engage(true);drag={id:ev.pointerId,x:ev.clientX,start:rightTime(),moved:false};canvas.setPointerCapture(ev.pointerId);});
on(canvas,'pointermove',function(ev){
if(drag&&drag.id===ev.pointerId){var dx=ev.clientX-drag.x;if(Math.abs(dx)>4)drag.moved=true;if(drag.moved){panTo(drag.start-dx*windowS*1000/Math.max(1,W-padL-padR));canvas.style.cursor='grabbing';return;}}
var b=hit(ev);hover=b?b.hash:null;canvas.style.cursor=b?'pointer':'grab';if(!selected)showTip(b);if(!continuous())redraw();
});
on(canvas,'pointerup',function(ev){if(ev.pointerType==='touch')return;if(!drag||drag.id!==ev.pointerId)return;var moved=drag.moved;drag=null;if(canvas.hasPointerCapture(ev.pointerId))canvas.releasePointerCapture(ev.pointerId);canvas.style.cursor='grab';if(!moved){var b=hit(ev);select(b&&selected!==b.hash?b.hash:null,'pointer');}});
on(canvas,'pointercancel',function(){drag=null;});
on(canvas,'pointerleave',function(){hover=null;if(!drag)engage(false);if(!selected)showTip(null);redraw();});
on(canvas,'wheel',function(ev){if(!ev.ctrlKey&&!ev.metaKey&&!engaged)return;if(Math.abs(ev.deltaY)<1)return;ev.preventDefault();zoom(ev.deltaY>0?1.15:1/1.15);},{passive:false});
var touchStart=null;
function dist(touches){return Math.hypot(touches[0].clientX-touches[1].clientX,touches[0].clientY-touches[1].clientY);}
on(canvas,'touchstart',function(ev){if(ev.touches.length===2){pinch={distance:dist(ev.touches),window:windowS};touchStart=null;}else if(ev.touches.length===1){touchStart={x:ev.touches[0].clientX,y:ev.touches[0].clientY};}},{passive:true});
on(canvas,'touchmove',function(ev){if(ev.touches.length===2&&pinch){ev.preventDefault();setWindow(pinch.window*pinch.distance/Math.max(1,dist(ev.touches)));}else if(touchStart&&ev.touches.length){if(Math.hypot(ev.touches[0].clientX-touchStart.x,ev.touches[0].clientY-touchStart.y)>8)touchStart=null;}},{passive:false});
on(canvas,'touchend',function(ev){if(pinch){if(ev.touches.length<2)pinch=null;touchStart=null;return;}if(touchStart&&ev.changedTouches.length){var b=hit(ev.changedTouches[0]);select(b&&selected!==b.hash?b.hash:null,'touch');touchStart=null;}},{passive:true});
on(canvas,'keydown',function(ev){
var key=ev.key;if(['ArrowLeft','ArrowRight','ArrowUp','ArrowDown','Home','End'].includes(key)){
ev.preventDefault();var list=blocks.filter(function(b){return b.on;}),i=list.findIndex(function(b){return b.hash===selected;}),next;
if(!list.length)return;if(key==='Home')next=0;else if(key==='End')next=list.length-1;else next=i<0?list.length-1:clamp(i+(['ArrowRight','ArrowDown'].includes(key)?1:-1),0,list.length-1);select(list[next].hash,'keyboard');
}else if(key===' '){ev.preventDefault();setPaused(!paused);}else if(key==='+'||key==='='){ev.preventDefault();zoom(1/1.2);}else if(key==='-'){ev.preventDefault();zoom(1.2);}else if(key.toLowerCase()==='f'){ev.preventDefault();follow();}
});
on(doc,'keydown',function(ev){if(ev.key==='Escape'&&(engaged||doc.activeElement===canvas)){engage(false);select(null,'escape');}});
on(doc,'pointerdown',function(ev){if(engaged&&ev.target!==canvas&&!(chip&&chip.contains(ev.target)))engage(false);});
if(opts.pauseButton){opts.pauseButton.setAttribute('aria-pressed','false');on(opts.pauseButton,'click',function(){setPaused(!paused);});}
on(root,'resize',size);
if('ResizeObserver'in root){ro=new ResizeObserver(size);ro.observe(canvas);}
if('IntersectionObserver'in root){io=new IntersectionObserver(function(es){visible=es[0].isIntersecting;if(visible)redraw();else stopFrame();},{threshold:0});io.observe(canvas);}
if('MutationObserver'in root){mo=new MutationObserver(theme);mo.observe(doc.documentElement,{attributes:true,attributeFilter:['data-theme','class','style']});}
if(mq&&mq.addEventListener)on(mq,'change',function(e){reduced=e.matches;reducedRight=Date.now()-lag;stopFrame();redraw();});
if(mediaTheme&&mediaTheme.addEventListener)on(mediaTheme,'change',theme);
on(doc,'visibilitychange',function(){if(doc.hidden){stopFrame();clearTimeout(pollTimer);if(controller)controller.abort();}else{poll();redraw();}});
healthTimer=setInterval(function(){if(destroyed||doc.hidden||!lastGood)return;if(state==='live'&&Date.now()-lastGood>(finite(opts.staleAfterMs)?opts.staleAfterMs:15000))setState('stale','No observer update for '+Math.round((Date.now()-lastGood)/1000)+' s');},1000);
function destroy(){if(destroyed)return;destroyed=true;stopFrame();clearTimeout(pollTimer);clearTimeout(timeout);clearInterval(healthTimer);if(controller)controller.abort();remove.forEach(function(fn){fn();});if(ro)ro.disconnect();if(io)io.disconnect();if(mo)mo.disconnect();if(tip)tip.hidden=true;canvas.classList.remove('engaged');
[['tabindex',initialAttributes.tabindex],['role',initialAttributes.role],['aria-label',initialAttributes.label]].forEach(function(pair){if(pair[1]===null)canvas.removeAttribute(pair[0]);else canvas.setAttribute(pair[0],pair[1]);});canvas.style.touchAction=initialAttributes.touch;canvas.style.cursor=initialAttributes.cursor;instances.delete(canvas);model.clear();view.clear();blocks=[];
}
var api={push:push,setPaused:setPaused,zoom:zoom,engage:engage,getWindow:function(){return windowS;},getWantedHeight:function(){return wantH;},getState:function(){return {state:state,reason:reason};},redraw:redraw,words:words,
destroy:destroy,follow:follow,setWindow:setWindow,setFilter:setFilter,setMotion:setMotion,select:select,getStats:stats,
getViewRange:function(){return {start:rightTime()-windowS*1000,end:rightTime(),filter:filter};},getBlocks:function(){return blocks.map(cloneBlock);},getCheckpoints:function(){return cps.map(function(c){return Object.assign({},c);});},
getSnapshot:function(){return {ok:true,state:{stale:state!=='live'},blocks:blocks.map(cloneBlock),finality:{checkpoints:cps.map(function(c){return Object.assign({},c);})}};}};
instances.set(canvas,api);if(chip)chip.hidden=true;theme();size();emit('onState',state,reason);if(opts.poll!==false)poll();redraw();return api;
}
// the shard sentence, once (7 Oct 2026, the fixed sentence the site's animation showed on every planless block): from the
// block's own facts. No shards: an excluded block has nothing to prove, a pending block is not yet ordered, a blue block off
// the selected chain gets no plan, a chain block under 10 s old is loading its plan, an older one says how long it has waited.
// With shards: a planned shard with no prover is awaiting one (with the block's age), assigned, proving, verified, paid.
function ageWord(sec){sec=Math.max(0,Math.round(sec));return sec<90?sec+' s':sec<5400?Math.round(sec/60)+' min':Math.round(sec/3600)+' h';}
function shardWords(b,nowMs){
var now=finite(nowMs)?nowMs:Date.now(),age=b&&finite(b.ts)?Math.max(0,(now-b.ts)/1000):0,sh=(b&&b.shards)||[];
if(!sh.length){
if(!b)return {summary:'',items:[],state:'none'};
if(b.color==='red')return {summary:'excluded, nothing to prove',items:[],state:'excluded'};
if(b.color!=='blue')return {summary:'not yet ordered',items:[],state:'pending'};
if(!b.chain)return {summary:'off the selected chain, no shards planned',items:[],state:'none'};
if(b.plan===true)return {summary:'no shards in this block',items:[],state:'none'};
if(age<10)return {summary:'shard plan loading',items:[],state:'loading'};
return {summary:'no shard plan after '+ageWord(age),items:[],state:'late'};
}
var items=sh.map(function(x,i){var st=x.state,w=st==='planned'?(x.prover?'assigned to '+x.prover:'awaiting a prover · '+ageWord(age)):st==='proving'?'proving'+(x.prover?' by '+x.prover:''):st==='verified'?'verified':st==='paid'?'paid'+(finite(x.payout)?' '+x.payout+' IGN':''):'unknown';return {i:i,state:st,word:w};});
var n={paid:0,verified:0,proving:0,assigned:0,awaiting:0};
sh.forEach(function(x){if(x.state==='planned'){if(x.prover)n.assigned++;else n.awaiting++;}else if(n[x.state]!==undefined)n[x.state]++;});
var parts=[];if(n.paid)parts.push(n.paid+' paid');if(n.verified)parts.push(n.verified+' verified');if(n.proving)parts.push(n.proving+' proving');if(n.assigned)parts.push(n.assigned+' assigned');if(n.awaiting)parts.push(n.awaiting+' awaiting a prover · '+ageWord(age));
return {summary:parts.join(', '),items:items,state:n.awaiting?'awaiting':n.proving?'proving':'done'};
}
// key-22 (7 October 2026, the app's key against /live): THE key, once. Entries in the order both
// pages show them, each naming the token the scene draws that state with and the swatch's shape; the app passes
// {mine:true} and gets "Your blocks" (ringed, molten) first. tools/scene/legend.test.mjs fails when a page's key or a
// drawn colour drifts from this list. Shapes: square (outlined), circle (the checkpoint ring), tick (the proof mark),
// ringed (the own-block halo); faded dims the swatch as the scene dims excluded blocks.
function legend(o){
var own={id:'you',label:'Your blocks',token:'--molten',shape:'ringed'};
var list=[{id:'pending',label:'Pending',token:'--ash',shape:'square'},{id:'included',label:'Included',token:'--included',shape:'square'},
{id:'excluded',label:'Excluded',token:'--excluded',shape:'square',faded:true},{id:'chain',label:'Selected chain',token:'--ember',shape:'square',fill:'--ember-12'},
{id:'proven',label:'Proven',token:'--bone',shape:'tick'},{id:'locked',label:'Locked checkpoint',token:'--ember',shape:'circle'}];
return (o&&o.mine?[own]:[]).concat(list);
}
// renders the key into el: <span><i class="lg <shape> [faded]" style="--lg:var(token)"></i>Label</span>…, keeping any
// children the page already placed there (the app's source line) after the entries
function renderLegend(el,o){
if(!el)return [];var entries=legend(o),doc=el.ownerDocument,keep=Array.prototype.slice.call(el.childNodes).filter(function(n){return !(n.getAttribute&&n.getAttribute('data-lg'));});
while(el.firstChild)el.removeChild(el.firstChild);
entries.forEach(function(e){var sp=doc.createElement('span');sp.setAttribute('data-lg',e.id);var i=doc.createElement('i');i.className='lg '+e.shape+(e.faded?' faded':'');i.style.setProperty('--lg','var('+e.token+')');if(e.fill)i.style.setProperty('--lg-fill','var('+e.fill+')');sp.appendChild(i);sp.appendChild(doc.createTextNode(e.label));el.appendChild(sp);});
keep.forEach(function(n){el.appendChild(n);});return entries;
}
root.IgneumDag={mount:mount,legend:legend,renderLegend:renderLegend,shardWords:shardWords,version:'2.0.6'};
})(window);