#!/usr/bin/env node
// Diagnostic-only replay: remove one measured WRONG free pitch from this
// in-memory follower instance. It never changes static defaults or live code.
import fs from 'node:fs';
import { dequantiseSal } from '../static/salience.js';
import { ScoreFollower, FOLLOWER_DEFAULTS } from '../static/follower.js';
const path=process.argv[2]||'/tmp/notepilot-left-loop/mic-follower-hold-diagnostics-20260918-v2.json';
const q=Number(process.argv[3]||78), tr=JSON.parse(fs.readFileSync(path,'utf8')), ev=tr.events, m=tr.meta||{};
const sr=m.follower?.sr||48000, hop=m.follower?.hop||512, opt=m.follower?.options||FOLLOWER_DEFAULTS;
const sf=new ScoreFollower({solo:m.rh,sampleRate:sr,win:m.follower?.win||2048,hop,position:0,options:{...opt,diagnostic:()=>{}}});
sf._wrongPitches=sf._wrongPitches.filter(x=>x.midi!==q);
const fired=new Set(), attempts=ev.filter(e=>e.type==='input.testEvent'), rows=[];
for(const f of ev.filter(e=>e.type==='follow.frame'&&Array.isArray(e.sal))){
 for(let i=0;i<ev.length;i++){const a=ev[i];if(a.type==='accomp.fire'&&a.t<=f.t&&!fired.has(i)){fired.add(i);sf.accompanimentFired({pitches:a.pitches,atMs:a.t,durMs:500,beat:a.beat});}}
 const out=sf.observe({seq:f.k,at:f.at,sr,win:m.follower?.win||2048,hop,db:f.db,floorDb:f.fl,gated:!!f.g,attack:!!f.a,onset:f.on,sal:dequantiseSal(Uint8Array.from(f.sal),f.pk)},f.t);
 if(out.advance) rows.push({t:f.t,to:out.advance.toIndex,lag:out.advance.lagMs});
}
const falseAdv=rows.filter(r=>{const prior=attempts.filter(a=>a.scoreEventId===r.to&&a.t<=r.t);return !prior.length;});
console.log(JSON.stringify({source:path,excludedQ:q,excludedName:`${q}`,advances:rows.length,advancesTo:rows.slice(-10),falseAdvances:falseAdv.length,falseAdvancesDetail:falseAdv},null,2));