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<title>Chain Insights – Fund Flow Graph</title>
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k;m=u*N,h=hu*u,d=h-(h-u),p=u-d,h=hu*N,g=h-(h-N),y=N-g,x=p*y-(m-d*g-p*g-d*y),w=c*S,h=hu*c,d=h-(h-c),p=c-d,h=hu*S,g=h-(h-S),y=S-g,M=p*y-(w-d*g-p*g-d*y),v=x-M,l=x-v,wu[0]=x-(v+l)+(l-M),_=m+v,l=_-m,b=m-(_-l)+(v-l),v=b-w,l=b-v,wu[1]=b-(v+l)+(l-w),T=_+v,l=T-_,wu[2]=_-(T-l)+(v-l),wu[3]=T;const P=pu(4,_u,4,wu,bu);m=A*s,h=hu*A,d=h-(h-A),p=A-d,h=hu*s,g=h-(h-s),y=s-g,x=p*y-(m-d*g-p*g-d*y),w=E*f,h=hu*E,d=h-(h-E),p=E-d,h=hu*f,g=h-(h-f),y=f-g,M=p*y-(w-d*g-p*g-d*y),v=x-M,l=x-v,wu[0]=x-(v+l)+(l-M),_=m+v,l=_-m,b=m-(_-l)+(v-l),v=b-w,l=b-v,wu[1]=b-(v+l)+(l-w),T=_+v,l=T-_,wu[2]=_-(T-l)+(v-l),wu[3]=T;const z=pu(P,bu,4,wu,mu);m=u*s,h=hu*u,d=h-(h-u),p=u-d,h=hu*s,g=h-(h-s),y=s-g,x=p*y-(m-d*g-p*g-d*y),w=c*f,h=hu*c,d=h-(h-c),p=c-d,h=hu*f,g=h-(h-f),y=f-g,M=p*y-(w-d*g-p*g-d*y),v=x-M,l=x-v,wu[0]=x-(v+l)+(l-M),_=m+v,l=_-m,b=m-(_-l)+(v-l),v=b-w,l=b-v,wu[1]=b-(v+l)+(l-w),T=_+v,l=T-_,wu[2]=_-(T-l)+(v-l),wu[3]=T;const $=pu(z,mu,4,wu,xu);return xu[$-1]}(t,n,e,r,i,o,f)}const Tu=Math.pow(2,-52),Au=new Uint32Array(512);class Su{static from(t,n=zu,e=$u){const r=t.length,i=new Float64Array(2*r);for(let o=0;o<r;o++){const r=t[o];i[2*o]=n(r),i[2*o+1]=e(r)}return new Su(i)}constructor(t){const n=t.length>>1;if(n>0&&"number"!=typeof t[0])throw new Error("Expected coords to contain numbers.");this.coords=t;const e=Math.max(2*n-5,0);this._triangles=new Uint32Array(3*e),this._halfedges=new Int32Array(3*e),this._hashSize=Math.ceil(Math.sqrt(n)),this._hullPrev=new Uint32Array(n),this._hullNext=new Uint32Array(n),this._hullTri=new Uint32Array(n),this._hullHash=new Int32Array(this._hashSize),this._ids=new Uint32Array(n),this._dists=new Float64Array(n),this.update()}update(){const{coords:t,_hullPrev:n,_hullNext:e,_hullTri:r,_hullHash:i}=this,o=t.length>>1;let a=1/0,u=1/0,c=-1/0,f=-1/0;for(let n=0;n<o;n++){const e=t[2*n],r=t[2*n+1];e<a&&(a=e),r<u&&(u=r),e>c&&(c=e),r>f&&(f=r),this._ids[n]=n}const s=(a+c)/2,l=(u+f)/2;let h,d,p;for(let n=0,e=1/0;n<o;n++){const r=Eu(s,l,t[2*n],t[2*n+1]);r<e&&(h=n,e=r)}const g=t[2*h],y=t[2*h+1];for(let n=0,e=1/0;n<o;n++){if(n===h)continue;const r=Eu(g,y,t[2*n],t[2*n+1]);r<e&&r>0&&(d=n,e=r)}let v=t[2*d],_=t[2*d+1],b=1/0;for(let n=0;n<o;n++){if(n===h||n===d)continue;const e=ku(g,y,v,_,t[2*n],t[2*n+1]);e<b&&(p=n,b=e)}let m=t[2*p],x=t[2*p+1];if(b===1/0){for(let n=0;n<o;n++)this._dists[n]=t[2*n]-t[0]||t[2*n+1]-t[1];Cu(this._ids,this._dists,0,o-1);const n=new Uint32Array(o);let e=0;for(let t=0,r=-1/0;t<o;t++){const i=this._ids[t],o=this._dists[i];o>r&&(n[e++]=i,r=o)}return this.hull=n.subarray(0,e),this.triangles=new Uint32Array(0),void(this.halfedges=new Uint32Array(0))}if(Mu(g,y,v,_,m,x)<0){const t=d,n=v,e=_;d=p,v=m,_=x,p=t,m=n,x=e}const w=function(t,n,e,r,i,o){const a=e-t,u=r-n,c=i-t,f=o-n,s=a*a+u*u,l=c*c+f*f,h=.5/(a*f-u*c),d=t+(f*s-u*l)*h,p=n+(a*l-c*s)*h;return{x:d,y:p}}(g,y,v,_,m,x);this._cx=w.x,this._cy=w.y;for(let n=0;n<o;n++)this._dists[n]=Eu(t[2*n],t[2*n+1],w.x,w.y);Cu(this._ids,this._dists,0,o-1),this._hullStart=h;let M=3;e[h]=n[p]=d,e[d]=n[h]=p,e[p]=n[d]=h,r[h]=0,r[d]=1,r[p]=2,i.fill(-1),i[this._hashKey(g,y)]=h,i[this._hashKey(v,_)]=d,i[this._hashKey(m,x)]=p,this.trianglesLen=0,this._addTriangle(h,d,p,-1,-1,-1);for(let o,a,u=0;u<this._ids.length;u++){const c=this._ids[u],f=t[2*c],s=t[2*c+1];if(u>0&&Math.abs(f-o)<=Tu&&Math.abs(s-a)<=Tu)continue;if(o=f,a=s,c===h||c===d||c===p)continue;let l=0;for(let t=0,n=this._hashKey(f,s);t<this._hashSize&&(l=i[(n+t)%this._hashSize],-1===l||l===e[l]);t++);l=n[l];let g,y=l;for(;g=e[y],Mu(f,s,t[2*y],t[2*y+1],t[2*g],t[2*g+1])>=0;)if(y=g,y===l){y=-1;break}if(-1===y)continue;let v=this._addTriangle(y,c,e[y],-1,-1,r[y]);r[c]=this._legalize(v+2),r[y]=v,M++;let _=e[y];for(;g=e[_],Mu(f,s,t[2*_],t[2*_+1],t[2*g],t[2*g+1])<0;)v=this._addTriangle(_,c,g,r[c],-1,r[_]),r[c]=this._legalize(v+2),e[_]=_,M--,_=g;if(y===l)for(;g=n[y],Mu(f,s,t[2*g],t[2*g+1],t[2*y],t[2*y+1])<0;)v=this._addTriangle(g,c,y,-1,r[y],r[g]),this._legalize(v+2),r[g]=v,e[y]=y,M--,y=g;this._hullStart=n[c]=y,e[y]=n[_]=c,e[c]=_,i[this._hashKey(f,s)]=c,i[this._hashKey(t[2*y],t[2*y+1])]=y}this.hull=new Uint32Array(M);for(let t=0,n=this._hullStart;t<M;t++)this.hull[t]=n,n=e[n];this.triangles=this._triangles.subarray(0,this.trianglesLen),this.halfedges=this._halfedges.subarray(0,this.trianglesLen)}_hashKey(t,n){return Math.floor(function(t,n){const e=t/(Math.abs(t)+Math.abs(n));return(n>0?3-e:1+e)/4}(t-this._cx,n-this._cy)*this._hashSize)%this._hashSize}_legalize(t){const{_triangles:n,_halfedges:e,coords:r}=this;let i=0,o=0;for(;;){const a=e[t],u=t-t%3;if(o=u+(t+2)%3,-1===a){if(0===i)break;t=Au[--i];continue}const c=a-a%3,f=u+(t+1)%3,s=c+(a+2)%3,l=n[o],h=n[t],d=n[f],p=n[s];if(Nu(r[2*l],r[2*l+1],r[2*h],r[2*h+1],r[2*d],r[2*d+1],r[2*p],r[2*p+1])){n[t]=p,n[a]=l;const r=e[s];if(-1===r){let n=this._hullStart;do{if(this._hullTri[n]===s){this._hullTri[n]=t;break}n=this._hullPrev[n]}while(n!==this._hullStart)}this._link(t,r),this._link(a,e[o]),this._link(o,s);const u=c+(a+1)%3;i<Au.length&&(Au[i++]=u)}else{if(0===i)break;t=Au[--i]}}return o}_link(t,n){this._halfedges[t]=n,-1!==n&&(this._halfedges[n]=t)}_addTriangle(t,n,e,r,i,o){const a=this.trianglesLen;return this._triangles[a]=t,this._triangles[a+1]=n,this._triangles[a+2]=e,this._link(a,r),this._link(a+1,i),this._link(a+2,o),this.trianglesLen+=3,a}}function Eu(t,n,e,r){const i=t-e,o=n-r;return i*i+o*o}function Nu(t,n,e,r,i,o,a,u){const c=t-a,f=n-u,s=e-a,l=r-u,h=i-a,d=o-u,p=s*s+l*l,g=h*h+d*d;return c*(l*g-p*d)-f*(s*g-p*h)+(c*c+f*f)*(s*d-l*h)<0}function ku(t,n,e,r,i,o){const a=e-t,u=r-n,c=i-t,f=o-n,s=a*a+u*u,l=c*c+f*f,h=.5/(a*f-u*c),d=(f*s-u*l)*h,p=(a*l-c*s)*h;return d*d+p*p}function Cu(t,n,e,r){if(r-e<=20)for(let i=e+1;i<=r;i++){const r=t[i],o=n[r];let a=i-1;for(;a>=e&&n[t[a]]>o;)t[a+1]=t[a--];t[a+1]=r}else{let i=e+1,o=r;Pu(t,e+r>>1,i),n[t[e]]>n[t[r]]&&Pu(t,e,r),n[t[i]]>n[t[r]]&&Pu(t,i,r),n[t[e]]>n[t[i]]&&Pu(t,e,i);const a=t[i],u=n[a];for(;;){do{i++}while(n[t[i]]<u);do{o--}while(n[t[o]]>u);if(o<i)break;Pu(t,i,o)}t[e+1]=t[o],t[o]=a,r-i+1>=o-e?(Cu(t,n,i,r),Cu(t,n,e,o-1)):(Cu(t,n,e,o-1),Cu(t,n,i,r))}}function Pu(t,n,e){const r=t[n];t[n]=t[e],t[e]=r}function zu(t){return t[0]}function $u(t){return t[1]}const Du=1e-6;class Ru{constructor(){this._x0=this._y0=this._x1=this._y1=null,this._=""}moveTo(t,n){this._+=`M${this._x0=this._x1=+t},${this._y0=this._y1=+n}`}closePath(){null!==this._x1&&(this._x1=this._x0,this._y1=this._y0,this._+="Z")}lineTo(t,n){this._+=`L${this._x1=+t},${this._y1=+n}`}arc(t,n,e){const r=(t=+t)+(e=+e),i=n=+n;if(e<0)throw new Error("negative radius");null===this._x1?this._+=`M${r},${i}`:(Math.abs(this._x1-r)>Du||Math.abs(this._y1-i)>Du)&&(this._+="L"+r+","+i),e&&(this._+=`A${e},${e},0,1,1,${t-e},${n}A${e},${e},0,1,1,${this._x1=r},${this._y1=i}`)}rect(t,n,e,r){this._+=`M${this._x0=this._x1=+t},${this._y0=this._y1=+n}h${+e}v${+r}h${-e}Z`}value(){return this._||null}}class Fu{constructor(){this._=[]}moveTo(t,n){this._.push([t,n])}closePath(){this._.push(this._[0].slice())}lineTo(t,n){this._.push([t,n])}value(){return this._.length?this._:null}}class qu{constructor(t,[n,e,r,i]=[0,0,960,500]){if(!((r=+r)>=(n=+n)&&(i=+i)>=(e=+e)))throw new Error("invalid bounds");this.delaunay=t,this._circumcenters=new Float64Array(2*t.points.length),this.vectors=new Float64Array(2*t.points.length),this.xmax=r,this.xmin=n,this.ymax=i,this.ymin=e,this._init()}update(){return this.delaunay.update(),this._init(),this}_init(){const{delaunay:{points:t,hull:n,triangles:e},vectors:r}=this;let i,o;const a=this.circumcenters=this._circumcenters.subarray(0,e.length/3*2);for(let r,u,c=0,f=0,s=e.length;c<s;c+=3,f+=2){const s=2*e[c],l=2*e[c+1],h=2*e[c+2],d=t[s],p=t[s+1],g=t[l],y=t[l+1],v=t[h],_=t[h+1],b=g-d,m=y-p,x=v-d,w=_-p,M=2*(b*w-m*x);if(Math.abs(M)<1e-9){if(void 0===i){i=o=0;for(const e of n)i+=t[2*e],o+=t[2*e+1];i/=n.length,o/=n.length}const e=1e9*Math.sign((i-d)*w-(o-p)*x);r=(d+v)/2-e*w,u=(p+_)/2+e*x}else{const t=1/M,n=b*b+m*m,e=x*x+w*w;r=d+(w*n-m*e)*t,u=p+(b*e-x*n)*t}a[f]=r,a[f+1]=u}let u,c,f,s=n[n.length-1],l=4*s,h=t[2*s],d=t[2*s+1];r.fill(0);for(let e=0;e<n.length;++e)s=n[e],u=l,c=h,f=d,l=4*s,h=t[2*s],d=t[2*s+1],r[u+2]=r[l]=f-d,r[u+3]=r[l+1]=h-c}render(t){const n=null==t?t=new Ru:void 0,{delaunay:{halfedges:e,inedges:r,hull:i},circumcenters:o,vectors:a}=this;if(i.length<=1)return null;for(let n=0,r=e.length;n<r;++n){const r=e[n];if(r<n)continue;const i=2*Math.floor(n/3),a=2*Math.floor(r/3),u=o[i],c=o[i+1],f=o[a],s=o[a+1];this._renderSegment(u,c,f,s,t)}let u,c=i[i.length-1];for(let n=0;n<i.length;++n){u=c,c=i[n];const e=2*Math.floor(r[c]/3),f=o[e],s=o[e+1],l=4*u,h=this._project(f,s,a[l+2],a[l+3]);h&&this._renderSegment(f,s,h[0],h[1],t)}return n&&n.value()}renderBounds(t){const n=null==t?t=new Ru:void 0;return t.rect(this.xmin,this.ymin,this.xmax-this.xmin,this.ymax-this.ymin),n&&n.value()}renderCell(t,n){const e=null==n?n=new Ru:void 0,r=this._clip(t);if(null===r||!r.length)return;n.moveTo(r[0],r[1]);let i=r.length;for(;r[0]===r[i-2]&&r[1]===r[i-1]&&i>1;)i-=2;for(let t=2;t<i;t+=2)r[t]===r[t-2]&&r[t+1]===r[t-1]||n.lineTo(r[t],r[t+1]);return n.closePath(),e&&e.value()}*cellPolygons(){const{delaunay:{points:t}}=this;for(let n=0,e=t.length/2;n<e;++n){const t=this.cellPolygon(n);t&&(t.index=n,yield t)}}cellPolygon(t){const n=new Fu;return this.renderCell(t,n),n.value()}_renderSegment(t,n,e,r,i){let o;const 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e=.87559*Mm(n-xm(n/7,2));t.moveTo(-e,0),t.lineTo(e,0),t.moveTo(0,e),t.lineTo(0,-e)}},yx={draw(t,n){const e=Mm(n),r=-e/2;t.rect(r,r,e,e)}},vx={draw(t,n){const e=.4431*Mm(n);t.moveTo(e,e),t.lineTo(e,-e),t.lineTo(-e,-e),t.lineTo(-e,e),t.closePath()}};const _x=wm(Am/10)/wm(7*Am/10),bx=wm(Em/10)*_x,mx=-bm(Em/10)*_x;var xx={draw(t,n){const e=Mm(.8908130915292852*n),r=bx*e,i=mx*e;t.moveTo(0,-e),t.lineTo(r,i);for(let n=1;n<5;++n){const o=Em*n/5,a=bm(o),u=wm(o);t.lineTo(u*e,-a*e),t.lineTo(a*r-u*i,u*r+a*i)}t.closePath()}};const wx=Mm(3);var Mx={draw(t,n){const e=-Mm(n/(3*wx));t.moveTo(0,2*e),t.lineTo(-wx*e,-e),t.lineTo(wx*e,-e),t.closePath()}};const Tx=Mm(3);var Ax={draw(t,n){const e=.6824*Mm(n),r=e/2,i=e*Tx/2;t.moveTo(0,-e),t.lineTo(i,r),t.lineTo(-i,r),t.closePath()}};const Sx=-.5,Ex=Mm(3)/2,Nx=1/Mm(12),kx=3*(Nx/2+1);var Cx={draw(t,n){const e=Mm(n/kx),r=e/2,i=e*Nx,o=r,a=e*Nx+e,u=-o,c=a;t.moveTo(r,i),t.lineTo(o,a),t.lineTo(u,c),t.lineTo(Sx*r-Ex*i,Ex*r+Sx*i),t.lineTo(Sx*o-Ex*a,Ex*o+Sx*a),t.lineTo(Sx*u-Ex*c,Ex*u+Sx*c),t.lineTo(Sx*r+Ex*i,Sx*i-Ex*r),t.lineTo(Sx*o+Ex*a,Sx*a-Ex*o),t.lineTo(Sx*u+Ex*c,Sx*c-Ex*u),t.closePath()}},Px={draw(t,n){const e=.6189*Mm(n-xm(n/6,1.7));t.moveTo(-e,-e),t.lineTo(e,e),t.moveTo(-e,e),t.lineTo(e,-e)}};const zx=[fx,sx,dx,yx,xx,Mx,Cx],$x=[fx,gx,Px,Ax,cx,vx,px];function Dx(){}function Rx(t,n,e){t._context.bezierCurveTo((2*t._x0+t._x1)/3,(2*t._y0+t._y1)/3,(t._x0+2*t._x1)/3,(t._y0+2*t._y1)/3,(t._x0+4*t._x1+n)/6,(t._y0+4*t._y1+e)/6)}function Fx(t){this._context=t}function qx(t){this._context=t}function Ux(t){this._context=t}function Ix(t,n){this._basis=new Fx(t),this._beta=n}Fx.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=NaN,this._point=0},lineEnd:function(){switch(this._point){case 3:Rx(this,this._x1,this._y1);case 2:this._context.lineTo(this._x1,this._y1)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3,this._context.lineTo((5*this._x0+this._x1)/6,(5*this._y0+this._y1)/6);default:Rx(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},qx.prototype={areaStart:Dx,areaEnd:Dx,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._y0=this._y1=this._y2=this._y3=this._y4=NaN,this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x2,this._y2),this._context.closePath();break;case 2:this._context.moveTo((this._x2+2*this._x3)/3,(this._y2+2*this._y3)/3),this._context.lineTo((this._x3+2*this._x2)/3,(this._y3+2*this._y2)/3),this._context.closePath();break;case 3:this.point(this._x2,this._y2),this.point(this._x3,this._y3),this.point(this._x4,this._y4)}},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._x2=t,this._y2=n;break;case 1:this._point=2,this._x3=t,this._y3=n;break;case 2:this._point=3,this._x4=t,this._y4=n,this._context.moveTo((this._x0+4*this._x1+t)/6,(this._y0+4*this._y1+n)/6);break;default:Rx(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},Ux.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3;var e=(this._x0+4*this._x1+t)/6,r=(this._y0+4*this._y1+n)/6;this._line?this._context.lineTo(e,r):this._context.moveTo(e,r);break;case 3:this._point=4;default:Rx(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},Ix.prototype={lineStart:function(){this._x=[],this._y=[],this._basis.lineStart()},lineEnd:function(){var t=this._x,n=this._y,e=t.length-1;if(e>0)for(var r,i=t[0],o=n[0],a=t[e]-i,u=n[e]-o,c=-1;++c<=e;)r=c/e,this._basis.point(this._beta*t[c]+(1-this._beta)*(i+r*a),this._beta*n[c]+(1-this._beta)*(o+r*u));this._x=this._y=null,this._basis.lineEnd()},point:function(t,n){this._x.push(+t),this._y.push(+n)}};var Ox=function t(n){function e(t){return 1===n?new Fx(t):new Ix(t,n)}return e.beta=function(n){return t(+n)},e}(.85);function Bx(t,n,e){t._context.bezierCurveTo(t._x1+t._k*(t._x2-t._x0),t._y1+t._k*(t._y2-t._y0),t._x2+t._k*(t._x1-n),t._y2+t._k*(t._y1-e),t._x2,t._y2)}function Yx(t,n){this._context=t,this._k=(1-n)/6}Yx.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:Bx(this,this._x1,this._y1)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2,this._x1=t,this._y1=n;break;case 2:this._point=3;default:Bx(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Lx=function t(n){function e(t){return new Yx(t,n)}return e.tension=function(n){return t(+n)},e}(0);function 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Jx(t,n){this._context=t,this._alpha=n}Jx.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3,this._line?this._context.lineTo(this._x2,this._y2):this._context.moveTo(this._x2,this._y2);break;case 3:this._point=4;default:Vx(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var tw=function 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<script>
(function(){
'use strict';

/* ───────────────────────────────────────────────────────────
   Colors — verbatim from webapp useNetworkChart.js
   valueColor: dark warm brown (#3d3224) → brand gold (#f2dda6)
   ─────────────────────────────────────────────────────────── */
function valueColor(t) {
  var lo={r:61,g:50,b:36}, hi={r:242,g:221,b:166};
  return 'rgb('+Math.round(lo.r+(hi.r-lo.r)*t)+','+Math.round(lo.g+(hi.g-lo.g)*t)+','+Math.round(lo.b+(hi.b-lo.b)*t)+')';
}

var COL_BG = 'rgba(10, 12, 17, 1)';
function parseHex(h) {
  h = h.replace('#','');
  return {r:parseInt(h.substring(0,2),16), g:parseInt(h.substring(2,4),16), b:parseInt(h.substring(4,6),16)};
}
function mixColor(hex, bgStr, t) {
  // Mix hex color toward bg by factor t (1=full color, 0=bg)
  var c = parseHex(hex);
  var bg = {r:10, g:12, b:17}; // COL_BG
  return 'rgb('+Math.round(bg.r+(c.r-bg.r)*t)+','+Math.round(bg.g+(c.g-bg.g)*t)+','+Math.round(bg.b+(c.b-bg.b)*t)+')';
}
var bgPatternImg = null;
(function() {
  var img = new Image();
  img.onload = function() { bgPatternImg = img; draw(); };
  img.src = 'data:image/png;base64, ';
})();
var BORDER_LABEL = '#f2dda6';
var MIN_R = 8, MAX_R = 40, DEF_R = 15;

// Role-based node fill colors — pastel on dark
// Node colors — neon
var ROLE_FILLS = {
  search:       '#ffffff',  // white — starting point
  seed:         '#ffffff',  // white
  source:       '#00ff88',  // neon green — origin
  target:       '#ff0055',  // neon red — destination
  victim:       '#ffdd00',  // neon yellow — victim
  scammer:      '#ff0055',  // neon red — danger
  exchange:     '#0066ff',  // strong neon blue — institutional
  deposit:      '#00ffcc',  // neon cyan — deposit
  intermediary: '#b38cff',  // violet — routed intermediary
  counterparty: '#8fb3ff',  // blue — adjacent counterparty
};
// Risk indicators — drawn as ! inside node, not borders
var RISK_COLORS = {
  high:   '#ff0044',  // neon red !
  medium: '#ff8800',  // neon orange !
};
var RISK_BORDERS = {high:{color:'#ff0044',width:3},medium:{color:'#ff8800',width:3},low:{color:'#00ff88',width:3}};
// Default node color
var DEFAULT_NODE = '#778899';

// Named palettes for experimentation
var PALETTES = {
  default: {
    roleFills: {search:'#ffffff',seed:'#ffffff',source:'#00ff88',target:'#ff0055',victim:'#ffdd00',scammer:'#ff0055',exchange:'#0066ff',deposit:'#00ffcc',intermediary:null,counterparty:null},
    riskBorders: {high:{color:'#ff0044',width:3},medium:{color:'#ff8800',width:3},low:{color:'#00ff88',width:3}},
    defaultNode: '#778899',
  },
  vivid: {
    roleFills: {search:'#FBBF24',seed:'#FBBF24',source:'#38BDF8',target:'#F472B6',victim:'#C084FC',scammer:'#EF4444',exchange:'#34D399',deposit:'#FB923C',intermediary:null,counterparty:null},
    riskBorders: {high:{color:'#EF4444',width:4},medium:{color:'#F59E0B',width:3.5},low:{color:'#3B82F6',width:3}},
    defaultNode: '#e2e2e2',
  },
  muted: {
    roleFills: {search:'#D97706',seed:'#D97706',source:'#6B9BD2',target:'#C2768F',victim:'#9F83B5',scammer:'#C0504D',exchange:'#6BA589',deposit:'#C4956A',intermediary:null,counterparty:null},
    riskBorders: {high:{color:'#C0504D',width:4},medium:{color:'#D4A04A',width:3.5},low:{color:'#5B8DB8',width:3}},
    defaultNode: '#c8c4be',
  },
  cool: {
    roleFills: {search:'#78A9FF',seed:'#78A9FF',source:'#33B1FF',target:'#D4BBFF',victim:'#FF7EB6',scammer:'#FA4D56',exchange:'#42BE65',deposit:'#08BDBA',intermediary:null,counterparty:null},
    riskBorders: {high:{color:'#FA4D56',width:4},medium:{color:'#F1C21B',width:3.5},low:{color:'#4589FF',width:3}},
    defaultNode: '#d0d0d8',
  },
  warm: {
    roleFills: {search:'#FCD34D',seed:'#FCD34D',source:'#FDBA74',target:'#FCA5A5',victim:'#DDD6FE',scammer:'#F87171',exchange:'#86EFAC',deposit:'#FDE68A',intermediary:null,counterparty:null},
    riskBorders: {high:{color:'#DC2626',width:4},medium:{color:'#EA580C',width:3.5},low:{color:'#2563EB',width:3}},
    defaultNode: '#e0d8d0',
  },
  a11y: {
    roleFills: {search:'#FFB000',seed:'#FFB000',source:'#648FFF',target:'#DC267F',victim:'#B5A8D0',scammer:'#FE6100',exchange:'#785EF0',deposit:'#FFD166',intermediary:null,counterparty:null},
    riskBorders: {high:{color:'#FE6100',width:3},medium:{color:'#FFB000',width:3},low:{color:'#648FFF',width:3}},
    defaultNode: '#e0e0e0',
  },
  // --- 7 new experimental palettes ---
  ocean: {
    // Deep sea blues and corals — calm, professional, aquatic
    roleFills: {search:'#e8e8f0',seed:'#e8e8f0',source:'#5ce0b8',target:'#ff6b6b',victim:'#ffd93d',scammer:'#ff6b6b',exchange:'#4d96ff',deposit:'#6bcbff',intermediary:null,counterparty:null},
    riskBorders: {high:{color:'#ff6b6b',width:3},medium:{color:'#ffd93d',width:3},low:{color:'#5ce0b8',width:3}},
    defaultNode: '#6888a0',
  },
  neon: {
    // Cyberpunk neon on dark — maximum pop
    roleFills: {search:'#ffffff',seed:'#ffffff',source:'#00ff88',target:'#ff0055',victim:'#ffdd00',scammer:'#ff0055',exchange:'#00aaff',deposit:'#00ffcc',intermediary:null,counterparty:null},
    riskBorders: {high:{color:'#ff0055',width:3},medium:{color:'#ffdd00',width:3},low:{color:'#00ff88',width:3}},
    defaultNode: '#778899',
  },
  earth: {
    // Natural earth tones — terracotta, sage, clay
    roleFills: {search:'#f5e6d0',seed:'#f5e6d0',source:'#7eb77f',target:'#c45b4a',victim:'#d4944a',scammer:'#c45b4a',exchange:'#5b7fa5',deposit:'#6aab9a',intermediary:null,counterparty:null},
    riskBorders: {high:{color:'#c45b4a',width:3},medium:{color:'#d4944a',width:3},low:{color:'#7eb77f',width:3}},
    defaultNode: '#a89880',
  },
  frost: {
    // Ice blues and whites — clean, Scandinavian
    roleFills: {search:'#f0f8ff',seed:'#f0f8ff',source:'#88ddaa',target:'#e06080',victim:'#f0c060',scammer:'#e06080',exchange:'#6090cc',deposit:'#80c8e0',intermediary:null,counterparty:null},
    riskBorders: {high:{color:'#e06080',width:3},medium:{color:'#f0c060',width:3},low:{color:'#88ddaa',width:3}},
    defaultNode: '#8898a8',
  },
  candy: {
    // Soft pastels — bubblegum, lilac, mint
    roleFills: {search:'#fff0f5',seed:'#fff0f5',source:'#90e8b0',target:'#f08090',victim:'#f0c878',scammer:'#f08090',exchange:'#88a8e0',deposit:'#80d8d0',intermediary:null,counterparty:null},
    riskBorders: {high:{color:'#f08090',width:3},medium:{color:'#f0c878',width:3},low:{color:'#90e8b0',width:3}},
    defaultNode: '#b8a8c0',
  },
  noir: {
    // Film noir — muted, high contrast, dramatic
    roleFills: {search:'#d0d0d0',seed:'#d0d0d0',source:'#70b870',target:'#c85050',victim:'#c8a050',scammer:'#c85050',exchange:'#5080b0',deposit:'#508888',intermediary:null,counterparty:null},
    riskBorders: {high:{color:'#c85050',width:3},medium:{color:'#c8a050',width:3},low:{color:'#70b870',width:3}},
    defaultNode: '#606060',
  },
  sunset: {
    // Warm sunset gradient — oranges, pinks, purples
    roleFills: {search:'#fff0e0',seed:'#fff0e0',source:'#60d0a0',target:'#e84070',victim:'#f0a040',scammer:'#e84070',exchange:'#7070d0',deposit:'#a060c0',intermediary:null,counterparty:null},
    riskBorders: {high:{color:'#e84070',width:3},medium:{color:'#f0a040',width:3},low:{color:'#60d0a0',width:3}},
    defaultNode: '#b09080',
  },
};

function switchPalette(name) {
  var p = PALETTES[name];
  if (!p) return;
  ROLE_FILLS = p.roleFills;
  RISK_BORDERS = p.riskBorders;
  DEFAULT_NODE = p.defaultNode;
  document.querySelectorAll('.pal-btn').forEach(function(b){b.classList.toggle('active',b.dataset.palette===name);});
  if (graphData) { buildLegend(); draw(); }
}

/* ───────────────────────────────────────────────────────────
   State
   ─────────────────────────────────────────────────────────── */
var graphData = null;
var storageId = null;  // stable graph id for localStorage keys
var depositExchange = {}; // address → exchange name for deposit nodes
var nodes     = [];    // {address, x, y, r, ...}
var links     = [];    // {source:nodeRef, target:nodeRef, ...}
var nodeMap   = {};    // address → node
var seed      = null;
var layout    = 'tree';
var showFlows = true;
var showPatterns = true;
var tf        = null;
var zoomB     = null;
var worker    = null;
var canvas, ctx, W, H, dpr;
var dragN     = null;
var amtExt    = null;
var amtRange  = 0;

/* ───────────────────────────────────────────────────────────
   Helpers
   ─────────────────────────────────────────────────────────── */
function trunc(a) { return (!a||a.length<=14) ? (a||'') : a.slice(0,6)+'…'+a.slice(-6); }
function fmtDate(ts) {
  var d = new Date(ts);
  return d.toISOString().slice(0,10) + ' ' + d.toISOString().slice(11,16);
}
function hashString(s) {
  var h = 2166136261;
  for (var i=0; i<s.length; i++) {
    h ^= s.charCodeAt(i);
    h = Math.imul(h, 16777619);
  }
  return (h >>> 0).toString(36);
}
function edgeSourceId(e) {
  return e.source || e.from_address || e.from || '';
}
function edgeTargetId(e) {
  return e.target || e.to_address || e.to || '';
}
function edgeType(e) {
  return String(e.edge_type || e.type || 'flows_to').toUpperCase();
}
function edgeUsdAmount(e) {
  return e.usd_amount || e.amount_usd || e.amount_usd_sum || 0;
}
function storageIdFromData(data) {
  if (!data) return null;
  var meta = data.metadata || {};
  var explicit = meta.storage_id || meta.storageId || meta.trace_id || meta.traceId || meta.job_id || meta.jobId || meta.case_id || meta.caseId;
  if (explicit) return String(explicit).replace(/[^a-zA-Z0-9_.-]/g, '_');

  var nodeIds = (data.nodes || []).map(function(n){ return n.address || n.id || ''; }).sort();
  var edgeIds = (data.edges || []).map(function(e){
    return [edgeSourceId(e), edgeTargetId(e), edgeType(e)].join('>');
  }).sort();
  var basis = JSON.stringify({
    network: meta.network || '',
    seed: meta.seed_address || meta.seedAddress || '',
    nodes: nodeIds,
    edges: edgeIds,
  });
  return 'inline_' + hashString(basis);
}
function posStorageKey() {
  if (!storageId) return null;
  return 'graph_pos_' + storageId + '_' + layout;
}
function savePositions() {
  var key = posStorageKey();
  if (!key || !nodes.length) return;
  var pos = {};
  for (var i=0; i<nodes.length; i++) {
    pos[nodes[i].address] = {x:nodes[i].x, y:nodes[i].y};
  }
  try { localStorage.setItem(key, JSON.stringify(pos)); } catch(e) {}
}
function loadPositions() {
  var key = posStorageKey();
  if (!key) return false;
  try {
    var stored = localStorage.getItem(key);
    if (!stored) return false;
    var pos = JSON.parse(stored);
    var applied = 0;
    for (var i=0; i<nodes.length; i++) {
      var p = pos[nodes[i].address];
      if (p) { nodes[i].x = p.x; nodes[i].y = p.y; applied++; }
    }
    return applied > 0;
  } catch(e) { return false; }
}
function clearPositions() {
  // Clear all keys for this storageId
  if (!storageId) return;
  var prefix = 'graph_pos_' + storageId + '_';
  try {
    var keys = [];
    for (var i=0; i<localStorage.length; i++) {
      var k = localStorage.key(i);
      if (k && k.indexOf(prefix) === 0) keys.push(k);
    }
    keys.forEach(function(k){ localStorage.removeItem(k); });
  } catch(e) {}
}
function saveViewState() {
  if (!storageId) return;
  try { localStorage.setItem('graph_view_' + storageId, JSON.stringify({layout:layout})); } catch(e) {}
}
function loadViewState() {
  if (!storageId) return;
  try {
    var s = localStorage.getItem('graph_view_' + storageId);
    if (!s) return;
    var v = JSON.parse(s);
    if (v.layout) layout = v.layout;
    document.querySelectorAll('.layout-btn').forEach(function(b){ b.classList.toggle('active', b.dataset.layout===layout); });
  } catch(e) {}
}
function fmtUSD(v) {
  if (v==null) return '';
  if (v>=1e6) return '$'+(v/1e6).toFixed(1)+'M';
  if (v>=1e3) return '$'+(v/1e3).toFixed(1)+'K';
  return '$'+Math.round(v);
}

/* ───────────────────────────────────────────────────────────
   Web Worker — ported from webapp networkChartWorker.js
   Key: force starts from CLEAN positions (no x/y) so d3
   uses its phyllotaxis default. Tree uses BFS hierarchy.
   ─────────────────────────────────────────────────────────── */
/* Chain Insights — D3 worker dependencies inlined (CDN blocked by CSP sandbox) */
var D3_DISPATCH  = '/* d3-dispatch 3.0.1 */\n// https://d3js.org/d3-dispatch/ v3.0.1 Copyright 2010-2021 Mike Bostock\n!function(n,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e((n="undefined"!=typeof globalThis?globalThis:n||self).d3=n.d3||{})}(this,(function(n){"use strict";var e={value:()=>{}};function t(){for(var n,e=0,t=arguments.length,o={};e<t;++e){if(!(n=arguments[e]+"")||n in o||/[\\s.]/.test(n))throw new Error("illegal type: "+n);o[n]=[]}return new r(o)}function r(n){this._=n}function o(n,e){return n.trim().split(/^|\\s+/).map((function(n){var t="",r=n.indexOf(".");if(r>=0&&(t=n.slice(r+1),n=n.slice(0,r)),n&&!e.hasOwnProperty(n))throw new Error("unknown type: "+n);return{type:n,name:t}}))}function i(n,e){for(var t,r=0,o=n.length;r<o;++r)if((t=n[r]).name===e)return t.value}function f(n,t,r){for(var o=0,i=n.length;o<i;++o)if(n[o].name===t){n[o]=e,n=n.slice(0,o).concat(n.slice(o+1));break}return null!=r&&n.push({name:t,value:r}),n}r.prototype=t.prototype={constructor:r,on:function(n,e){var t,r=this._,l=o(n+"",r),a=-1,u=l.length;if(!(arguments.length<2)){if(null!=e&&"function"!=typeof e)throw new Error("invalid callback: "+e);for(;++a<u;)if(t=(n=l[a]).type)r[t]=f(r[t],n.name,e);else if(null==e)for(t in r)r[t]=f(r[t],n.name,null);return this}for(;++a<u;)if((t=(n=l[a]).type)&&(t=i(r[t],n.name)))return t},copy:function(){var n={},e=this._;for(var t in e)n[t]=e[t].slice();return new r(n)},call:function(n,e){if((t=arguments.length-2)>0)for(var t,r,o=new Array(t),i=0;i<t;++i)o[i]=arguments[i+2];if(!this._.hasOwnProperty(n))throw new Error("unknown type: "+n);for(i=0,t=(r=this._[n]).length;i<t;++i)r[i].value.apply(e,o)},apply:function(n,e,t){if(!this._.hasOwnProperty(n))throw new Error("unknown type: "+n);for(var r=this._[n],o=0,i=r.length;o<i;++o)r[o].value.apply(e,t)}},n.dispatch=t,Object.defineProperty(n,"__esModule",{value:!0})}));';
var D3_QUADTREE  = '/* d3-quadtree 3.0.1 */\n// https://d3js.org/d3-quadtree/ v3.0.1 Copyright 2010-2021 Mike Bostock\n!function(t,i){"object"==typeof exports&&"undefined"!=typeof module?i(exports):"function"==typeof define&&define.amd?define(["exports"],i):i((t="undefined"!=typeof globalThis?globalThis:t||self).d3=t.d3||{})}(this,(function(t){"use strict";function i(t,i,e,n){if(isNaN(i)||isNaN(e))return t;var r,s,h,o,a,u,l,_,f,c=t._root,x={data:n},y=t._x0,d=t._y0,p=t._x1,v=t._y1;if(!c)return t._root=x,t;for(;c.length;)if((u=i>=(s=(y+p)/2))?y=s:p=s,(l=e>=(h=(d+v)/2))?d=h:v=h,r=c,!(c=c[_=l<<1|u]))return r[_]=x,t;if(o=+t._x.call(null,c.data),a=+t._y.call(null,c.data),i===o&&e===a)return x.next=c,r?r[_]=x:t._root=x,t;do{r=r?r[_]=new Array(4):t._root=new Array(4),(u=i>=(s=(y+p)/2))?y=s:p=s,(l=e>=(h=(d+v)/2))?d=h:v=h}while((_=l<<1|u)==(f=(a>=h)<<1|o>=s));return r[f]=c,r[_]=x,t}function e(t,i,e,n,r){this.node=t,this.x0=i,this.y0=e,this.x1=n,this.y1=r}function n(t){return t[0]}function 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'',
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'',
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'',
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'    var deg={};',
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'  }',
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'  var rng=mx-mn;',
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'  });',
'}',
'',
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'  return n.role||null;',
'}',
'',
'function treeLayout(nodes,edges,w,h){',
'  // Pick root: victim > scammer > seed > earliest firstBlock > first node',
'  var fb=new Map();nodes.forEach(function(n){if(n.firstBlock)fb.set(n.address,n.firstBlock);});',
'  var root=null;',
'  // Priority 1: victim',
'  for(var ri=0;ri<nodes.length;ri++){if(nodes[ri].role==="victim"){root=nodes[ri].address;break;}}',
'  // Priority 2: scammer',
'  if(!root){for(var ri2=0;ri2<nodes.length;ri2++){if(nodes[ri2].role==="scammer"){root=nodes[ri2].address;break;}}}',
'  // Priority 3: seed address',
'  if(!root)root=seedAddr;',
'  // Priority 4: earliest firstBlock',
'  if(!root){var earliest=Infinity;nodes.forEach(function(n){var t=fb.get(n.address)||Infinity;if(t<earliest){earliest=t;root=n.address;}});}',
'  if(!root)root=nodes[0]&&nodes[0].address;',
'  if(!root)return;',
'  // Build DIRECTED adjacency (from→to) so tree follows money flow',
'  var fwd=new Map();',
'  edges.forEach(function(e){',
'    var s=edgeSourceId(e),t=edgeTargetId(e);',
'    if(!fwd.has(s))fwd.set(s,[]);',
'    fwd.get(s).push(t);',
'  });',
'  // BFS from root following directed edges',
'  var ch=new Map(),vis=new Set(),q=[root];vis.add(root);ch.set(root,[]);',
'  while(q.length){var a=q.shift();(fwd.get(a)||[]).forEach(function(nb){',
'    if(!vis.has(nb)){vis.add(nb);if(!ch.has(a))ch.set(a,[]);ch.get(a).push(nb);ch.set(nb,[]);q.push(nb);}',
'  });}',
'  // Fallback: unreached nodes via undirected edges (reverse flows, disconnected)',
'  var adj=new Map();',
'  edges.forEach(function(e){',
'    var s=edgeSourceId(e),t=edgeTargetId(e);',
'    if(!adj.has(s))adj.set(s,[]);if(!adj.has(t))adj.set(t,[]);',
'    adj.get(s).push(t);adj.get(t).push(s);',
'  });',
'  var q2=Array.from(vis);',
'  while(q2.length){var a2=q2.shift();(adj.get(a2)||[]).forEach(function(nb){',
'    if(!vis.has(nb)){vis.add(nb);if(!ch.has(a2))ch.set(a2,[]);ch.get(a2).push(nb);ch.set(nb,[]);q2.push(nb);}',
'  });}',
'  // Sort children by firstBlock timestamp (chronological order in tree)',
'  ch.forEach(function(children,parent){',
'    children.sort(function(a,b){return(fb.get(a)||0)-(fb.get(b)||0);});',
'  });',
'  // Attach any unreached nodes to root',
'  nodes.forEach(function(n){if(!vis.has(n.address)){vis.add(n.address);ch.get(root).push(n.address);ch.set(n.address,[]);}});',
'  var rmap=new Map();nodes.forEach(function(n){rmap.set(n.address,n._r||15);});',
'  function bld(a){return{address:a,_r:rmap.get(a)||15,children:(ch.get(a)||[]).map(bld)};}',
'  var hr=d3.hierarchy(bld(root));',
'  var PAD=60;',
'  // Left-to-right: d3.tree x=vertical spread, y=horizontal depth. Swap after.',
'  // Scale spacing based on node count for readability',
'  var N=nodes.length;',
'  var colW=N>50?250:200;',
'  var MAX_R=0;nodes.forEach(function(n){if((n._r||15)>MAX_R)MAX_R=n._r||15;});',
'  var LABEL_FOOTPRINT=50;',
'  var rowH=Math.max(90, MAX_R*2 + LABEL_FOOTPRINT);',
'  var tw=(hr.height+1)*colW;',
'  var th=Math.max(h, hr.leaves().length*rowH*1.2 + 2*PAD);',
'  d3.tree().size([th,tw]).separation(function(a,b){',
'    var ra=(a.data&&a.data._r)||15, rb=(b.data&&b.data._r)||15;',
'    var baseline=a.parent===b.parent?1:1.2;',
'    var needed=(ra+rb+LABEL_FOOTPRINT)/rowH;',
'    return Math.max(baseline, needed);',
'  })(hr);',
'  // Swap axes: d3 x→vertical, y→horizontal. We want horizontal tree.',
'  var pm=new Map();',
'  hr.each(function(d){pm.set(d.data.address,{x:d.y+PAD,y:d.x});});',
'  nodes.forEach(function(n){var p=pm.get(n.address);if(p){n.x=p.x;n.y=p.y;}else{n.x=w/2;n.y=h/2;}});',
'}',
'',
'function runForce(nodes,edges,w,h){',
'  if(sim){sim.stop();sim=null;}',
'  var ld=edges.map(function(e){return{source:edgeSourceId(e),target:edgeTargetId(e)};});',
'  sim=d3.forceSimulation(nodes)',
'    .force("link",d3.forceLink(ld).id(function(d){return d.address;})',
'      .distance(function(l){return((l.source._r||15)+(l.target._r||15)+60)*1.8;}))',
'    .force("charge",d3.forceManyBody().strength(function(){return(-300-nodes.length*5);}))',
'    .force("collide",d3.forceCollide().radius(function(d){return(d._r||15)+40;}).strength(0.9))',
'    .force("x",d3.forceX(w/2).strength(0.02))',
'    .force("y",d3.forceY(h/2).strength(0.02))',
'    .velocityDecay(0.55)',
'    .alphaDecay(0.008);',
'  for(var i=0;i<365;i++)sim.tick();',
'  self.postMessage({type:"end",nodes:sim.nodes().map(function(n){return{address:n.address,x:n.x,y:n.y,_r:n._r};})});',
'}',
'',
'function doLayout(ly){',
'  if(sim){sim.stop();sim=null;}',
'  // Always start from CLEAN node copies with NO x/y so d3 spreads them',
'  var ns=rawN.map(function(n){return{address:n.address,flow_in_usd:n.flow_in_usd,flow_out_usd:n.flow_out_usd,role:nodeDisplayRole(n),firstBlock:n.firstBlock||0};});',
'  radii(ns,rawE);',
'  if(ly==="tree"){',
'    treeLayout(ns,rawE,W,H);',
'    self.postMessage({type:"end",nodes:ns.map(function(n){return{address:n.address,x:n.x,y:n.y,_r:n._r};})});',
'  }else{',
'    runForce(ns,rawE,W,H);',
'  }',
'}',
'',
'self.onmessage=function(e){',
'  var m=e.data;',
'  if(m.type==="init"){',
'    rawN=m.nodes; rawE=m.edges; W=m.width; H=m.height; seedAddr=m.seed;',
'    doLayout(m.layout);',
'  }',
'  if(m.type==="layout"){ doLayout(m.layout); }',
'  if(m.type==="drag"&&sim){',
'    var n=sim.nodes().find(function(n){return n.address===m.address;});',
'    if(n){',
'      if(m.active){sim.alphaTarget(0.3).restart();n.fx=m.x;n.fy=m.y;}',
'      else{sim.alphaTarget(0);n.fx=m.x;n.fy=m.y;}',
'      self.postMessage({type:"tick",nodes:sim.nodes().map(function(n){return{address:n.address,x:n.x,y:n.y,_r:n._r};})});',
'    }',
'  }',
'};',
].join('\n');

function bootWorker() {
  if (worker) worker.terminate();
  worker = new Worker(URL.createObjectURL(new Blob([WC],{type:'application/javascript'})));
  worker.onmessage = onWorkerMsg;
  worker.onerror = function(e) { console.error('Worker error:', e.message, 'line:', e.lineno); };
}

var needFit = true;
function onWorkerMsg(e) {
  applyPos(e.data.nodes);
  // Try loading saved positions; if none, save initial positions
  if (!loadPositions()) {
    savePositions();
  }
  draw();
  if (needFit) { needFit = false; requestAnimationFrame(fitView); }
}

function applyPos(wn) {
  for (var i=0;i<wn.length;i++) {
    var n = nodeMap[wn[i].address];
    if (n) { n.x=wn[i].x; n.y=wn[i].y; n.r=wn[i]._r||DEF_R; }
  }
}

function nodeDisplayRole(n) {
  if (Array.isArray(n.roles) && n.roles.length) return n.roles[0];
  return n.role || null;
}

/* ───────────────────────────────────────────────────────────
   Data processing
   ─────────────────────────────────────────────────────────── */
function loadGraph(data) {
  graphData = data;
  seed = data.metadata ? data.metadata.seed_address : null;

  // Extract storageId from data_url query param for localStorage; fall back
  // to a deterministic graph hash so inline CLI data also persists.
  var params = new URLSearchParams(window.location.search);
  var dataUrl = params.get('data_url');
  if (dataUrl) {
    var m = dataUrl.match(/results\/([^/]+\/[^/]+)/);
    storageId = m ? m[1].replace(/\//g, '_') : null;
  }
  if (!storageId) storageId = storageIdFromData(data);

  // Build deposit→exchange name mapping
  depositExchange = {};
  var exMap = {};
  for (var ei2=0; ei2<data.nodes.length; ei2++) {
    var en = data.nodes[ei2];
    if (nodeDisplayRole(en) === 'exchange' && en.labels && en.labels.length) {
      exMap[en.address] = en.labels[0].replace(/, ?exchange$/i, '');
    }
  }
  for (var di=0; di<data.edges.length; di++) {
    var de = data.edges[di];
    var df = edgeSourceId(de);
    var dt = edgeTargetId(de);
    if (exMap[dt]) depositExchange[df] = exMap[dt];
  }

  // Restore view state from localStorage (layout only).
  loadViewState();

  applyDataMode();
}

function applyDataMode() {
  if (!graphData) return;

  nodeMap = {};

  nodes = graphData.nodes.map(function(n) {
    var o = {address:n.address, address_type:n.address_type||'wallet', labels:n.labels||[],
             flow_in_usd:n.flow_in_usd, flow_out_usd:n.flow_out_usd,
             role:nodeDisplayRole(n), risk_level:n.risk_level||null,
             risk_score: typeof n.risk_score === 'number' ? n.risk_score : null,
             pattern_flags:n.pattern_flags||[], x:0, y:0, r:DEF_R};
    nodeMap[o.address] = o;
    return o;
  });

  var amts = [];
  links = [];
  for (var i=0; i<graphData.edges.length; i++) {
    var e = graphData.edges[i];
    var eType = edgeType(e);
    if (eType !== 'FLOWS_TO') continue;  // skip pattern edges
    var src = nodeMap[edgeSourceId(e)];
    var tgt = nodeMap[edgeTargetId(e)];
    if (!src || !tgt) continue;
    var l = {source:src, target:tgt, usd_amount:edgeUsdAmount(e), tx_count:e.tx_count, type:eType, is_main_path:!!e.is_main_path, is_mixer_path:!!e.is_mixer_path};
    links.push(l);
    if (l.usd_amount > 0) amts.push(l.usd_amount);
  }
  amtExt = amts.length >= 2 ? d3.extent(amts) : null;
  amtRange = amtExt ? amtExt[1]-amtExt[0] : 0;

  var validEdges = graphData.edges.filter(function(e) {
    return nodeMap[edgeSourceId(e)] && nodeMap[edgeTargetId(e)];
  });

  needFit = true;
  worker.postMessage({type:'init', nodes:graphData.nodes.slice(), edges:validEdges,
    layout:layout, width:W, height:H, seed:seed});
  buildLegend();
}

function buildLegend() {
  var el = document.getElementById('legend');
  var roles = {}, risks = {};
  for (var i = 0; i < nodes.length; i++) {
    var n = nodes[i];
    if (n.role && ROLE_FILLS[n.role]) roles[n.role] = ROLE_FILLS[n.role];
    if (n.risk_level && RISK_BORDERS[n.risk_level]) risks[n.risk_level] = RISK_BORDERS[n.risk_level];
  }
  var ROLE_LABELS = {
    search:'Search address', seed:'Seed address', source:'Source', target:'Target',
    victim:'Victim', scammer:'Scammer', exchange:'Exchange', deposit:'Deposit',
    intermediary:'Intermediary', counterparty:'Counterparty'
  };
  var hasRoles = Object.keys(roles).length > 0;
  if (!hasRoles) { el.style.display='none'; return; }
  var html = '<div class="legend-title">Role</div>';
  for (var r in roles) {
    html += '<div class="legend-item"><div class="legend-dot" style="background:'+roles[r]+'"></div><span class="legend-label">'+(ROLE_LABELS[r]||r)+'</span></div>';
  }
  el.innerHTML = html;
  el.style.display = 'block';
}

/* ───────────────────────────────────────────────────────────
   Canvas
   ─────────────────────────────────────────────────────────── */
function initCanvas() {
  canvas = document.getElementById('c');
  dpr = window.devicePixelRatio || 1;
  W = window.innerWidth;
  H = window.innerHeight;
  canvas.width  = W * dpr;
  canvas.height = H * dpr;
  canvas.style.width  = W + 'px';
  canvas.style.height = H + 'px';
  ctx = canvas.getContext('2d');
  tf = d3.zoomIdentity;
}

/* ───────────────────────────────────────────────────────────
   Drawing — webapp useNetworkChart.js conventions:
   • ALL edges: valueColor gradient, solid, arrows
   • ALL nodes: valueColor gradient by size
   • Seed: bright gold + red ring
   ─────────────────────────────────────────────────────────── */
function draw() {
  ctx.setTransform(dpr,0,0,dpr,0,0);
  ctx.fillStyle = COL_BG;
  ctx.fillRect(0,0,W,H);
  if (bgPatternImg) {
    var scale = Math.max(W/bgPatternImg.width, H/bgPatternImg.height);
    ctx.globalAlpha = 0.4;
    ctx.drawImage(bgPatternImg, 0, 0, bgPatternImg.width*scale, bgPatternImg.height*scale);
    ctx.globalAlpha = 1;
  }
  ctx.setTransform(tf.k*dpr,0,0,tf.k*dpr, tf.x*dpr, tf.y*dpr);
  drawEdges();
  drawNodes();
}

function drawEdges() {
  ctx.save();
  ctx.setLineDash([]);

  // Pre-compute curve offsets for parallel edges between same node pairs
  var pairCount = {};
  var pairIndex = {};
  for (var pi=0; pi<links.length; pi++) {
    var pl = links[pi];
    if (!pl.source || !pl.target) continue;
    // Use sorted pair key so A→B and B→A share the same group
    var pa = pl.source.address, pb = pl.target.address;
    var pairKey = pa < pb ? pa+'|'+pb : pb+'|'+pa;
    if (!pairCount[pairKey]) pairCount[pairKey] = 0;
    pairIndex[pi] = pairCount[pairKey];
    pairCount[pairKey]++;
  }

  // Draw pattern edges first (behind flow edges)
  for (var pass=0; pass<2; pass++) {
  for (var i=0; i<links.length; i++) {
    var l = links[i];
    var s = l.source, t = l.target;
    if (!s || !t) continue;
    var isPattern = l.type !== 'FLOWS_TO' && l.type !== 'TRANSFER';
    if (isPattern) continue;  // skip pattern edges entirely
    // Pass 0: behind, Pass 1: on top (only flow/transfer now)
    if (pass === 0) continue;

    var dx = t.x-s.x, dy = t.y-s.y;
    var dist = Math.sqrt(dx*dx+dy*dy) || 1;
    var rT = t.r || DEF_R;

    // Compute curve offset for parallel edges
    var pa2 = s.address, pb2 = t.address;
    var pairKey2 = pa2 < pb2 ? pa2+'|'+pb2 : pb2+'|'+pa2;
    var totalInPair = pairCount[pairKey2] || 1;
    var idxInPair = pairIndex[i] || 0;
    var curveOff = 0;
    if (totalInPair > 1) {
      curveOff = (idxInPair - (totalInPair-1)/2) * 20;
    }
    // Perpendicular offset direction
    var nx = -dy/dist, ny = dx/dist;
    var cpx = (s.x+t.x)/2 + nx*curveOff;
    var cpy = (s.y+t.y)/2 + ny*curveOff;

    // Arrow endpoint on curve near target
    var tt = 1 - (rT+7)/dist;
    if (tt < 0.5) tt = 0.5;
    var ex = (1-tt)*(1-tt)*s.x + 2*(1-tt)*tt*cpx + tt*tt*t.x;
    var ey = (1-tt)*(1-tt)*s.y + 2*(1-tt)*tt*cpy + tt*tt*t.y;
    // Tangent at endpoint for arrowhead
    var tax = 2*(1-tt)*(cpx-s.x) + 2*tt*(t.x-cpx);
    var tay = 2*(1-tt)*(cpy-s.y) + 2*tt*(t.y-cpy);

    if (isPattern) {
      if (isPattern) continue; // skip pattern edges entirely
    } else {
      // FLOWS_TO / TRANSFER edges: solid, gold gradient by amount, arrow
      // Main-path edges (from address_connection_risk's disjoint routes) are
      // colored bright green so they stand out from the 1-hop neighbor
      // expansion edges. Routes that pass through a commingling hub
      // (high counterparty count + high volume inner node — possible
      // unidentified mixer / unlabeled CEX) are painted amber yellow
      // instead to flag the route as a likely false positive.
      var edgeCol;
      if (l.is_main_path) {
        edgeCol = l.is_mixer_path ? '#fbbf24' : '#22c55e';
      } else {
        var ct = 0.3;
        if (amtRange > 0 && l.usd_amount > 0) {
          ct = 0.15 + ((l.usd_amount - amtExt[0]) / amtRange) * 0.85;
        }
        edgeCol = valueColor(ct);
      }
      ctx.strokeStyle = edgeCol;
      ctx.fillStyle   = edgeCol;

      if (l.is_main_path) {
        ctx.lineWidth = 3;
      } else if (amtRange > 0 && l.usd_amount > 0) {
        ctx.lineWidth = 1 + ((l.usd_amount-amtExt[0])/amtRange)*3;
      } else {
        ctx.lineWidth = 1;
      }

      ctx.beginPath();
      ctx.moveTo(s.x, s.y);
      if (totalInPair > 1) {
        ctx.quadraticCurveTo(cpx, cpy, ex, ey);
      } else {
        ctx.lineTo(ex, ey);
      }
      ctx.stroke();

      // Arrowhead along curve tangent
      var ang = Math.atan2(tay, tax);
      if (totalInPair <= 1) ang = Math.atan2(dy, dx);
      var aw = 8, aa = Math.PI/7;
      ctx.beginPath();
      ctx.moveTo(ex, ey);
      ctx.lineTo(ex - aw*Math.cos(ang-aa), ey - aw*Math.sin(ang-aa));
      ctx.lineTo(ex - aw*Math.cos(ang+aa), ey - aw*Math.sin(ang+aa));
      ctx.closePath();
      ctx.fill();

      // Edge label at curve midpoint (+ asset & date in timeline mode)
      if (l.usd_amount) {
        // Midpoint on the bezier curve (t=0.5)
        var mx = 0.25*s.x + 0.5*cpx + 0.25*t.x;
        var my = 0.25*s.y + 0.5*cpy + 0.25*t.y;
        ctx.save();
        ctx.font = '9px Inter, -apple-system, sans-serif';
        ctx.textAlign = 'center';
        ctx.textBaseline = 'bottom';
        ctx.fillStyle = 'rgba(255,255,255,0.8)';
        var labelText = l.asset ? l.asset + ' ' + fmtUSD(l.usd_amount) : fmtUSD(l.usd_amount);
        ctx.fillText(labelText, mx, my - 4);
        if (l.timestamp) {
          ctx.font = '8px Inter, -apple-system, sans-serif';
          ctx.fillStyle = 'rgba(255,255,255,0.5)';
          ctx.fillText(fmtDate(l.timestamp), mx, my + 8);
        }
        ctx.restore();
      }
    }
  }
  }
  ctx.restore();
}

function drawNodes() {
  ctx.save();
  ctx.setLineDash([]);

  for (var i=0; i<nodes.length; i++) {
    var n = nodes[i];
    var r = n.r || DEF_R;
    var role = n.role;
    var st = Math.min(1, Math.max(0, (r-MIN_R)/(MAX_R-MIN_R)));

    // Fill: role color, intensity driven by risk_score
    // High risk = full color, low risk = blended toward dark bg
    var roleFill = role ? ROLE_FILLS[role] : null;
    var baseColor = roleFill || DEFAULT_NODE;
    var riskScore = n.risk_score || 0;
    // Mix base color with dark bg color based on risk (higher risk = more color)
    // Floor 0.55 so even low-risk nodes are clearly visible
    var mix = 0.55 + riskScore * 0.45;
    var color = mixColor(baseColor, COL_BG, mix);

    ctx.beginPath();
    ctx.arc(n.x, n.y, r, 0, Math.PI*2);
    ctx.fillStyle = color;
    ctx.fill();

    // Border: neon risk border for medium/high, subtle for rest
    if (n.risk_level === 'high') {
      ctx.strokeStyle = '#ff0044';
      ctx.lineWidth = 1;
    } else if (n.risk_level === 'medium') {
      ctx.strokeStyle = '#ff8800';
      ctx.lineWidth = 1;
    } else {
      ctx.strokeStyle = 'rgba(255,255,255,0.12)';
      ctx.lineWidth = 0.5;
    }
    ctx.stroke();

    // Labels below node
    ctx.font = '11px Inter, -apple-system, sans-serif';
    ctx.textAlign = 'center';
    ctx.textBaseline = 'top';
    var ly = n.y + r + 6;
    ctx.fillStyle = '#fff';
    ctx.fillText(trunc(n.address), n.x, ly);
    ly += 14;
    if (n.tx_id) {
      // Timeline mode: show tx_id
      ctx.fillStyle = 'rgba(255,255,255,0.4)';
      ctx.font = '9px Inter, -apple-system, sans-serif';
      ctx.fillText(n.tx_id, n.x, ly);
      ly += 12;
    } else {
      if (role && role !== 'intermediary' && role !== 'counterparty') {
        ctx.fillStyle = 'rgba(255,255,255,0.5)';
        var roleLabel = role;
        if (role === 'deposit' && depositExchange[n.address]) {
          roleLabel = depositExchange[n.address] + ' deposit';
        }
        ctx.fillText(roleLabel, n.x, ly);
        ly += 14;
      }
    }
    if (n.labels && n.labels.length) {
      ctx.fillStyle = 'rgba(242,221,166,0.7)';
      var lbl = n.labels.join(', ').split(',').map(function(s){return s.trim();}).filter(Boolean).slice(0,2).join(', ');
      ctx.fillText(lbl, n.x, ly);
    }
  }
  ctx.restore();
}

/* ───────────────────────────────────────────────────────────
   Hit testing
   ─────────────────────────────────────────────────────────── */
function hitNode(wx, wy) {
  for (var i=nodes.length-1; i>=0; i--) {
    var n=nodes[i], r=n.r||DEF_R, dx=wx-n.x, dy=wy-n.y;
    if (dx*dx+dy*dy <= r*r) return n;
  }
  return null;
}

function toWorld(cx, cy) { return {x:(cx-tf.x)/tf.k, y:(cy-tf.y)/tf.k}; }

/* ───────────────────────────────────────────────────────────
   Zoom + pan + drag
   ─────────────────────────────────────────────────────────── */
function initZoom() {
  zoomB = d3.zoom()
    .scaleExtent([0.2, 6])
    .filter(function(e) {
      if (e.type==='wheel') return true;
      if (e.ctrlKey||e.button) return false;
      if (e.type==='pointerdown') {
        var r=canvas.getBoundingClientRect(), w=toWorld(e.clientX-r.left,e.clientY-r.top);
        if (hitNode(w.x,w.y)) return false;
      }
      if (dragN) return false;
      return true;
    })
    .on('zoom', function(e) {
      if (!dragN) { tf=e.transform; draw(); }
    });
  d3.select(canvas).call(zoomB).on('dblclick.zoom',null);
}

function initInteraction() {
  canvas.addEventListener('pointerdown', function(e) {
    if (e.button!==0) return;
    var r=canvas.getBoundingClientRect(), w=toWorld(e.clientX-r.left,e.clientY-r.top);
    var hit=hitNode(w.x,w.y);
    if (hit) {
      dragN=hit;
      canvas.classList.add('dragging');
      if (layout==='force') worker.postMessage({type:'drag',address:hit.address,x:w.x,y:w.y,active:true});
      canvas.setPointerCapture(e.pointerId);
      e.preventDefault();
    }
  });

  canvas.addEventListener('pointermove', function(e) {
    if (!dragN) return;
    var r=canvas.getBoundingClientRect(), w=toWorld(e.clientX-r.left,e.clientY-r.top);
    dragN.x=w.x; dragN.y=w.y;
    if (layout==='force') worker.postMessage({type:'drag',address:dragN.address,x:w.x,y:w.y,active:true});
    draw();
  });

  canvas.addEventListener('pointerup', function(e) {
    if (dragN) {
      var r=canvas.getBoundingClientRect(), w=toWorld(e.clientX-r.left,e.clientY-r.top);
      if (layout==='force') worker.postMessage({type:'drag',address:dragN.address,x:w.x,y:w.y,active:false});
      dragN=null;
      canvas.classList.remove('dragging');
      savePositions();
    }
  });

}

/* ───────────────────────────────────────────────────────────
   Layout toggle
   ─────────────────────────────────────────────────────────── */
function setLayout(m) {
  layout = m;
  document.querySelectorAll('.layout-btn').forEach(function(b){ b.classList.toggle('active', b.dataset.layout===m); });
  if (!graphData) return;
  needFit = true;
  tf = d3.zoomIdentity;
  d3.select(canvas).call(zoomB.transform, tf);
  saveViewState();
  applyDataMode();
}

/* ───────────────────────────────────────────────────────────
   Fit to viewport
   ─────────────────────────────────────────────────────────── */
function fitView() {
  if (!nodes.length) return;
  var pad=80, mnx=Infinity,mxx=-Infinity,mny=Infinity,mxy=-Infinity;
  for(var i=0;i<nodes.length;i++){
    var n=nodes[i]; if(n.x<mnx)mnx=n.x; if(n.x>mxx)mxx=n.x; if(n.y<mny)mny=n.y; if(n.y>mxy)mxy=n.y;
  }
  mnx-=pad;mxx+=pad;mny-=pad;mxy+=pad;
  var bw=mxx-mnx, bh=mxy-mny;
  var sc=Math.min(W/bw, H/bh, 2);
  tf = d3.zoomIdentity.translate(W/2-(mnx+bw/2)*sc, H/2-(mny+bh/2)*sc).scale(sc);
  d3.select(canvas).call(zoomB.transform, tf);
  draw();
}

/* ───────────────────────────────────────────────────────────
   Public API
   ─────────────────────────────────────────────────────────── */
async function loadVisualizationData(toolResult) {
    var dataUrl = toolResult && toolResult.data_url;
    if (!dataUrl) return toolResult;
    if (!isLocalGraphReportUrl(dataUrl)) throw new Error('Graph report URL is not local');

    var MAX_RETRIES = 10;
    var BASE_DELAY_MS = 2000;
    var MAX_DELAY_MS = 15000;
    var loadingEl = document.getElementById('loading');

    for (var attempt = 1; attempt <= MAX_RETRIES; attempt++) {
        try {
            if (loadingEl) {
                loadingEl.textContent = attempt > 1
                    ? 'Processing on server... (attempt ' + attempt + '/' + MAX_RETRIES + ')'
                    : 'Loading visualization data...';
                loadingEl.classList.remove('hidden', 'error');
            }

            var resp = await fetch(dataUrl);

            if (resp.status === 200) {
                var data = await resp.json();
                if (data && (data.nodes || data.addresses || data.type)) {
                    return data;
                }
                // Valid 200 but unexpected shape — treat as not ready
            }

            if (resp.status === 410) {
                // Data expired
                if (loadingEl) {
                    loadingEl.textContent = 'Trace data expired. Please re-run the tool.';
                    loadingEl.classList.add('error');
                    loadingEl.classList.remove('hidden');
                }
                return null;
            }

            // 404, 503, or other — retry
        } catch (e) {
            // Network error — retry
        }

        if (attempt < MAX_RETRIES) {
            var delay = Math.min(
                BASE_DELAY_MS * Math.pow(1.5, attempt - 1) + Math.random() * 1000,
                MAX_DELAY_MS
            );
            await new Promise(function(r) { setTimeout(r, delay); });
        }
    }

    // Max retries exhausted
    if (loadingEl) {
        loadingEl.textContent = 'Data still processing. Please wait and refresh, or ask Claude to retry.';
        loadingEl.classList.add('error');
        loadingEl.classList.remove('hidden');
    }
    return toolResult || null;
}

function showBrowserLink(dataUrl) {
  if (!dataUrl) return;
  try {
    var u = new URL(dataUrl);
    var href = u.origin + '/apps/graph.html?data_url=' + encodeURIComponent(dataUrl);
    document.getElementById('browser-link').href = href;
    document.getElementById('open-in-browser').style.display = '';
  } catch(e) {}
}

function showLoadError(error) {
  var message = error && error.message ? error.message : String(error);
  var loadingEl = document.getElementById('loading');
  if (loadingEl) {
    loadingEl.textContent = message;
    loadingEl.classList.add('error');
    loadingEl.classList.remove('hidden');
  }
  console.error(error);
}

var GRAPH_REPORT_PATH_PREFIX = '/graph-reports/';

function isLocalGraphReportUrl(graphUrl) {
  try {
    var parsed = new URL(graphUrl);
    if (parsed.protocol !== 'http:') return false;
    if (parsed.hostname !== '127.0.0.1' && parsed.hostname !== 'localhost') return false;
    return parsed.pathname.indexOf(GRAPH_REPORT_PATH_PREFIX) === 0 &&
      /^\/graph-reports\/[A-Za-z0-9_-][A-Za-z0-9._-]*\.graph\.json$/.test(parsed.pathname);
  } catch (e) {
    return false;
  }
}

function getGraphReportUrl(params) {
  if (!params || !params._meta || !params._meta.chainInsights || !params._meta.chainInsights.graph) return null;
  return params._meta.chainInsights.graph.url || null;
}

async function loadFromToolResultParams(params) {
  var graphUrl = getGraphReportUrl(params);

  if (graphUrl) {
    try {
      if (!isLocalGraphReportUrl(graphUrl)) throw new Error('Graph report URL is not local');
      var resp = await fetch(graphUrl);
      if (!resp.ok) throw new Error('Graph report fetch failed: ' + resp.status);
      var graphData = await resp.json();
      window.loadData(graphData);
      return true;
    } catch (error) {
      if (error && error.message && error.message.indexOf('Graph report fetch failed:') === 0) throw error;
      throw new Error('Graph report fetch failed: ' + (error && error.message ? error.message : 'network error'));
    }
  }

  return false;
}

window.loadData = function(data) {
  document.getElementById('loading').classList.add('hidden');
  if (data && data.data_url) showBrowserLink(data.data_url);
  loadVisualizationData(data).then(function(graphData) {
    if (graphData) loadGraph(graphData);
  }).catch(showLoadError);
};

/* ───────────────────────────────────────────────────────────
   MCP Apps protocol — matches mcp-proxy topup widget
   ─────────────────────────────────────────────────────────── */
// MCP Apps protocol handshake (matches topup-server.ts golden reference)
(function() {
  var initId = 1;

  window.addEventListener('message', function(event) {
    var data = event.data;
    if (!data) return;

    // Non-JSONRPC fallback (fastmcp dev apps preview)
    if (data.type === 'tool-result' && data.result) { window.loadData(data.result); return; }

    if (data.jsonrpc !== '2.0') return;

    // Initialize response — host confirmed init
    if (data.id === initId && data.result) {
      // Send initialized notification
      window.parent.postMessage({jsonrpc:'2.0', method:'ui/notifications/initialized', params:{}}, '*');

      // Request square size — Claude Desktop will render in the artifact side panel
      // automatically because the tool has resourceUri set
      window.parent.postMessage({jsonrpc:'2.0', method:'ui/notifications/size-changed',
        params:{width:800, height:800}}, '*');
    }

    // Tool result — receive graph report URL from MCP tool call
    if (data.method === 'ui/notifications/tool-result' && data.params) {
      loadFromToolResultParams(data.params).catch(showLoadError);
    }

    // Respond to pings
    if (data.method === 'ping' && data.id != null) {
      window.parent.postMessage({jsonrpc:'2.0', id:data.id, result:{}}, '*');
    }
  });

  // Send initialize request (only when embedded in host)
  if (window.parent && window.parent !== window) {
    window.parent.postMessage({jsonrpc:'2.0', id:initId, method:'ui/initialize',
      params:{appInfo:{name:'Chain Insights Graph',version:'2.0.0'}, appCapabilities:{}, protocolVersion:'2026-01-26'}}, '*');
  }
})();

/* ───────────────────────────────────────────────────────────
   Mock data
   ─────────────────────────────────────────────────────────── */
var MOCK={nodes:[
  {address:"5FLSigC9HGRKVhB9FiEo4Y3koPsNmBmLJbpXg2mp1hXcS59Y",address_type:"wallet",labels:["Validator"],flow_in_usd:50000,flow_out_usd:45000},
  {address:"5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY",address_type:"exchange",labels:["Binance"],flow_in_usd:120000,flow_out_usd:115000},
  {address:"5HGjWAeFDfFCWPsjFQdVV2Msvz2XtMktvgocEZcCj68kUMaw",address_type:"wallet",labels:[],flow_in_usd:8000,flow_out_usd:7500},
  {address:"5DAAnrj7VHTznn2AWBemMuyBwZWs6FNFjdyVXUeYum3PTXFy",address_type:"wallet",labels:[],flow_in_usd:3000,flow_out_usd:2800,pattern_flags:["layering"]},
  {address:"5CiPPseXPECbkjWCa6MnjNokrgYjMqmKndv2rSneWj6VLHPF",address_type:"wallet",labels:["Miner"],flow_in_usd:25000,flow_out_usd:22000},
  {address:"5HpG9w8EBLe5XCrbczpwq5TSXvedjrBGCwqxK1iQ7qUsSWFc",address_type:"exchange",labels:["Kraken"],flow_in_usd:95000,flow_out_usd:90000},
  {address:"5Ew3MyB15VprZrjQVkpQFj8okmc9xLDSEdNhqMMS5cXsqxoW",address_type:"wallet",labels:[],flow_in_usd:1500,flow_out_usd:1400,pattern_flags:["structuring","rapid_consolidation"]},
],edges:[
  {source:"5FLSigC9HGRKVhB9FiEo4Y3koPsNmBmLJbpXg2mp1hXcS59Y",target:"5HGjWAeFDfFCWPsjFQdVV2Msvz2XtMktvgocEZcCj68kUMaw",usd_amount:5000,tx_count:3,edge_type:"flows_to"},
  {source:"5HGjWAeFDfFCWPsjFQdVV2Msvz2XtMktvgocEZcCj68kUMaw",target:"5DAAnrj7VHTznn2AWBemMuyBwZWs6FNFjdyVXUeYum3PTXFy",usd_amount:4500,tx_count:2,edge_type:"flows_to"},
  {source:"5DAAnrj7VHTznn2AWBemMuyBwZWs6FNFjdyVXUeYum3PTXFy",target:"5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY",usd_amount:4000,tx_count:1,edge_type:"flows_to"},
  {source:"5FLSigC9HGRKVhB9FiEo4Y3koPsNmBmLJbpXg2mp1hXcS59Y",target:"5CiPPseXPECbkjWCa6MnjNokrgYjMqmKndv2rSneWj6VLHPF",usd_amount:15000,tx_count:5,edge_type:"flows_to"},
  {source:"5CiPPseXPECbkjWCa6MnjNokrgYjMqmKndv2rSneWj6VLHPF",target:"5HpG9w8EBLe5XCrbczpwq5TSXvedjrBGCwqxK1iQ7qUsSWFc",usd_amount:12000,tx_count:4,edge_type:"flows_to"},
  {source:"5CiPPseXPECbkjWCa6MnjNokrgYjMqmKndv2rSneWj6VLHPF",target:"5Ew3MyB15VprZrjQVkpQFj8okmc9xLDSEdNhqMMS5cXsqxoW",usd_amount:2000,tx_count:8,edge_type:"flows_to"},
  {source:"5Ew3MyB15VprZrjQVkpQFj8okmc9xLDSEdNhqMMS5cXsqxoW",target:"5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY",usd_amount:1200,tx_count:6,edge_type:"flows_to"},
  {source:"5DAAnrj7VHTznn2AWBemMuyBwZWs6FNFjdyVXUeYum3PTXFy",target:"5Ew3MyB15VprZrjQVkpQFj8okmc9xLDSEdNhqMMS5cXsqxoW",usd_amount:800,tx_count:2,edge_type:"layering"},
],metadata:{seed_address:"5FLSigC9HGRKVhB9FiEo4Y3koPsNmBmLJbpXg2mp1hXcS59Y",mode:"bfs",network:"bittensor",node_count:7,edge_count:8}};

/* ───────────────────────────────────────────────────────────
   Boot
   ─────────────────────────────────────────────────────────── */
function boot() {
  initCanvas();
  bootWorker();
  initZoom();
  initInteraction();

  document.querySelectorAll('.layout-btn').forEach(function(b){
    b.addEventListener('click', function(){ setLayout(b.dataset.layout); });
  });
  document.getElementById('reset-btn').addEventListener('click', function(){
    clearPositions();
    applyDataMode();
  });
  document.querySelectorAll('.pal-btn').forEach(function(b){
    b.addEventListener('click', function(){ switchPalette(b.dataset.palette); });
  });
  document.querySelectorAll('.toggle-btn').forEach(function(b){
    b.addEventListener('click', function(){
      var t = b.dataset.toggle;
      if (t === 'flows') showFlows = !showFlows;
      if (t === 'patterns') showPatterns = !showPatterns;
      b.classList.toggle('active');
      draw();
    });
  });

  window.addEventListener('resize', function(){
    W=window.innerWidth; H=window.innerHeight;
    canvas.width=W*dpr; canvas.height=H*dpr;
    canvas.style.width=W+'px'; canvas.style.height=H+'px';
    draw();
  });

  // Check for inline embedded data (chain-insights CLI mode)
  if (typeof INLINE_DATA !== 'undefined' && INLINE_DATA) {
    document.getElementById('loading').classList.add('hidden');
    loadGraph(INLINE_DATA);
    return;
  }

  // Check for ?data_url= query param (standalone testing / direct link)
  var params = new URLSearchParams(window.location.search);
  var dataUrlParam = params.get('data_url');
  if (dataUrlParam) {
    (async function() {
      if (!isLocalGraphReportUrl(dataUrlParam)) throw new Error('Graph report URL is not local');

      var MAX_RETRIES = 10;
      var BASE_DELAY_MS = 2000;
      var MAX_DELAY_MS = 15000;
      var loadingEl = document.getElementById('loading');

      for (var attempt = 1; attempt <= MAX_RETRIES; attempt++) {
        try {
          if (loadingEl) {
            loadingEl.textContent = attempt > 1
                ? 'Processing on server... (attempt ' + attempt + '/' + MAX_RETRIES + ')'
                : 'Loading visualization data...';
            loadingEl.classList.remove('hidden', 'error');
          }

          var resp = await fetch(dataUrlParam);

          if (resp.status === 200) {
            var data = await resp.json();
            if (data && (data.nodes || data.addresses || data.type)) {
              graphData = data;
              break;
            }
          }

          if (resp.status === 410) {
            if (loadingEl) {
              loadingEl.textContent = 'Trace data expired. Please re-run the tool.';
              loadingEl.classList.add('error');
            }
            return;
          }
        } catch (e) {
          // retry
        }

        if (attempt === MAX_RETRIES) {
          if (loadingEl) {
            loadingEl.textContent = 'Data still processing. Please wait and refresh, or ask Claude to retry.';
            loadingEl.classList.add('error');
          }
          return;
        }

        var delay = Math.min(
          BASE_DELAY_MS * Math.pow(1.5, attempt - 1) + Math.random() * 1000,
          MAX_DELAY_MS
        );
        await new Promise(function(r) { setTimeout(r, delay); });
      }

      if (graphData) {
        document.getElementById('loading').classList.add('hidden');
        showBrowserLink(dataUrlParam);
        loadGraph(graphData);
      }
    })().catch(showLoadError);
  }
}

if (document.readyState==='loading') document.addEventListener('DOMContentLoaded',boot);
else boot();

})();
</script>
</body>
</html>
