/** Read-only diagnostic; a passing dump means the evidence was written, not design compliance. */
import { it, expect } from 'vitest';
import { mkdirSync, writeFileSync } from 'node:fs';
import { resolve } from 'node:path';
import { loadP1 } from '../../tests/helpers';
import { buildPier } from '../../src/core/geometry';
import { buildRebar3D, type BarRecord } from '../../src/view/rebar3d';
import { castRebarLayout } from '../../src/core/rebar/cast-layout';
import { columnInputFor, columnRebar } from '../../src/core/rebar/column';
import { rebarSummary } from '../../src/core/rebar/summary';
import { buildQuantity } from '../../src/core/rebar/quantity';
import { DEFAULT_MATERIAL } from '../../src/core/rebar/common';

it('records multi-column placement, concrete-envelope and quantity evidence', () => {
  const out=resolve('.verify/multicol-fixed-20261106'); mkdirSync(out,{recursive:true});
  const cases: unknown[]=[];
  for(const [type,columnCount] of [['2주형',2],['3주형',3]] as const) {
    for(const mode of ['footing','cast-default','cast-zones'] as const) {
      const input={...loadP1(),type,columnCount,foundationType:mode==='footing'?'말뚝기초' as const:'현장타설말뚝' as const,
        ...(mode!=='footing'?{groundEl:30,pileLengthMm:24000}:{}),
        ...(mode==='cast-zones'?{castInPlaceRebar:{column:{endZoneLengthMm:3000}},castInPlaceShape:{clayBottomEl:16}}:{})};
      const model=buildPier(input), rb=buildRebar3D(model), summary=rebarSummary(model);
      const polygon=model.copingParts[0].profile;
      const underside=(x:number)=>{
        const heights:number[]=[];
        polygon.forEach((p,i)=>{
          const q=polygon[(i+1)%polygon.length];
          if(Math.abs(q[0]-p[0])<1e-9)return;
          if(x>=Math.min(p[0],q[0])-1e-9 && x<=Math.max(p[0],q[0])+1e-9)heights.push(p[1]+(q[1]-p[1])*(x-p[0])/(q[0]-p[0]));
        });
        return Math.min(...heights);
      };
      const envelope=(filter:(r:BarRecord)=>boolean)=>{
        let minimum=Infinity,worst:unknown,below=0,samples=0;
        for(const record of rb.records.filter(filter)) {
          for(let i=1;i<record.pts.length;i++) {
            const a=record.pts[i-1],b=record.pts[i];
            const fractions=[...Array.from({length:21},(_,j)=>j/20),...polygon.map(p=>(p[0]-a[0])/(b[0]-a[0])).filter(t=>Number.isFinite(t)&&t>=0&&t<=1)];
            for(const fraction of fractions) {
            const x=a[0]+(b[0]-a[0])*fraction,y=a[1]+(b[1]-a[1])*fraction;
            const lower=underside(x); if(!Number.isFinite(lower))continue;
            const gap=(y-lower)*1000; samples++;if(gap<0)below++;
            if(gap<minimum){minimum=gap;worst={name:record.name,xMm:x*1000,barEl:y,concreteUndersideEl:lower};}
            }
          }
        }
        return{minimumCentreAboveUndersideMm:minimum,belowConcreteSamples:below,samples,worst};
      };
      const between=model.columns.slice(1).map((c,i)=>{const x=(model.columns[i].s+c.s)/2;return{xMm:x*1000,concreteUndersideEl:underside(x)};});
      const details=mode==='footing'?columnRebar(columnInputFor(model)):undefined;
      const cast=castRebarLayout(model);
      const perColumn=model.columns.map((c,i)=>{
        const bars=cast.bars.filter(b=>b.columnIndex===i);
        const counts:Record<string,number>={};bars.forEach(b=>counts[b.name]=(counts[b.name]??0)+1);
        const seg=model.segments.find(s=>c.s>=s.s0&&c.s<=s.s1)!;
        return{index:i+1,centreMm:c.s*1000,bottomEl:c.bottom,levelEl:c.top,localCopingTopEl:seg.top,
          intendedTieTopEl:(c.top+seg.top)/2,legacyTieTopEl:details?c.bottom+columnRebar(columnInputFor(model,undefined,i)).zTopT/1000:null,
          castBars:bars.length,castCounts:counts,castMainLengthM:bars.filter(b=>b.kind==='main').reduce((s,b)=>s+b.lengthMm/1000,0)};
      });
      const q=buildQuantity(summary.rows,DEFAULT_MATERIAL,summary.incomplete);
      const mainRows=summary.rows.filter(r=>r.name==='P1'||r.name==='P2').map(r=>({name:r.name,rowCount:r.count,pieceCount:r.pieces?.reduce((s,p)=>s+p.count,0)}));
      cases.push({type,mode,inputBasis:'public/samples/운곡교P1입력.xlsx, geometry type substituted; cast ground30m and length24000mm',
        copingLengthMm:model.copingL*1000,diameterMm:model.columnDiameterMm,levelEl:model.levelBottom,between,perColumn,
        copingProfile:polygon,c7Paths:rb.records.filter(r=>r.name==='C7').slice(0,2).map(r=>r.pts),
        C7C8:envelope(r=>r.name==='C7'||r.name==='C8'),shear:envelope(r=>/^C(9|10|11)$/.test(r.name)||r.name==='C9·C11 사이'),
        legacyLowerDenseLengthMm:details?.lE,workbookOnePointFiveDMm:1.5*model.columnDiameterMm,
        legacyTopDenseHoops:details?.p5.filter(z=>z>=columnInputFor(model).Hc-1.5*model.columnDiameterMm).length,
        mainRows,quantityKg:q.kg,incomplete:summary.incomplete});
      rb.group.traverse(o=>{const mesh=o as import('three').Mesh;mesh.geometry?.dispose();const m=mesh.material;if(Array.isArray(m))m.forEach(x=>x.dispose());else m?.dispose();});
    }
  }
  writeFileSync(resolve(out,'geometry-diagnostic.json'),JSON.stringify(cases,null,2));
  console.log(JSON.stringify(cases.map((c:any)=>({type:c.type,mode:c.mode,C7C8min:c.C7C8.minimumCentreAboveUndersideMm,shearMin:c.shear.minimumCentreAboveUndersideMm,denseMm:c.legacyLowerDenseLengthMm,perColumn:c.perColumn.map((p:any)=>p.castBars),mainRows:c.mainRows}))));
  expect(cases).toHaveLength(6);
},30000);