0hmX/am3352

scripts/check-ddr-host-router.ts

import type { GenericLocalAutorouter, SimpleRouteJson } from '@tscircuit/core'
import { readFileSync, writeFileSync, mkdirSync, mkdtempSync } from 'node:fs'
/** Integration-only router scope: explicitly route external signal traces.
 * CPU power is verified by independent plane-contact checks, not re-autorouted.
 * All original obstacles and preloaded traces remain present. */
export async function routeHostSignals(input: SimpleRouteJson, direct=process.argv.includes('--direct')): Promise<GenericLocalAutorouter> {
 const signalInput={...input,connections:input.connections.filter(c=>Boolean(c.source_trace_id))}
 mkdirSync('dist/ddr-host',{recursive:true})
 writeFileSync('dist/ddr-host/signal-router-input.json',JSON.stringify(signalInput,null,2))
 if(direct) {
  const traces=signalInput.connections.map(c=>{
   if(c.pointsToConnect.length!==2)throw new Error('Direct fixture requires exactly two real exits')
   const [a,b]=c.pointsToConnect
   if(a!.layer!==b!.layer)throw new Error('Direct fixture does not invent layer transitions')
   if(Math.hypot(a!.x-b!.x,a!.y-b!.y)<1)throw new Error('Host exits must be noncoincident')
   const width=.12
   const corner={x:a!.x+Math.sign(b!.x-a!.x)*Math.abs(b!.y-a!.y),y:b!.y}
   if(corner.x<Math.min(a!.x,b!.x)||corner.x>Math.max(a!.x,b!.x))throw new Error('45 degree fixture requires enough horizontal span')
   return {type:'pcb_trace' as const,pcb_trace_id:`host:${c.name}`,connection_name:c.name,source_trace_id:c.source_trace_id,route:[a!,corner,b!].map(p=>({route_type:'wire' as const,x:p.x,y:p.y,layer:a!.layer,width}))}
  })
  const handlers: Record<string, Array<(e:any)=>void>>={complete:[],error:[],progress:[]}
  return {input:signalInput,isRouting:false,start(){queueMicrotask(()=>handlers.complete.forEach(h=>h({type:'complete',traces})))},stop(){},on(e,h){handlers[e].push(h)},solveSync(){return traces}}
 }
 const jobDir=mkdtempSync('dist/ddr-host/capacity-job-')
 const inputPath=`${jobDir}/input.json`
 const outputPath=`${jobDir}/output.json`
 writeFileSync(inputPath,JSON.stringify(signalInput))
 const child=Bun.spawn(['bun',new URL('./check-ddr-host-solver.ts',import.meta.url).pathname,inputPath,outputPath],{stdout:'pipe',stderr:'pipe'})
 let timedOut=false
 const timer=setTimeout(()=>{timedOut=true;child.kill()},30000)
 const exitCode=await child.exited
 clearTimeout(timer)
 if(timedOut)throw new Error('Host capacity router exceeded 30 second wall-clock diagnostic limit')
 if(exitCode!==0)throw new Error(`Host capacity router failed: ${await new Response(child.stderr).text()}`)
 const traces=JSON.parse(readFileSync(outputPath,'utf8'))
 const handlers: Record<string, Array<(e:any)=>void>>={complete:[],error:[],progress:[]}
 return {input:signalInput,isRouting:false,start(){queueMicrotask(()=>handlers.complete.forEach(h=>h({type:'complete',traces})))},stop(){},on(e,h){handlers[e].push(h)},solveSync(){return traces}}
}