// t105: compare every direction with the unchanged t45 belt and exercise the complete line.
const {kinds,speed,throughput,chain,fresh,run}=require('../tools/experiments/transport-balance');
const {suite}=require('./harness');
const {check,done}=suite();
for(const kind of kinds)for(const reverse of [false,true]){
  const name=kind+(reverse?' mirrored':'');
  if(kind==='screw-up-right'||kind==='screw-down-right') {
    fresh(kind,reverse);
    check(`${name}: both belt joins are mutual`,run(`(()=>{let n=0;for(let b=0;b<NB;b++)if(blockP[b]===BP_SCREW)for(let e=0;e<2;e++){const j=endJoin(b%BW,(b/BW)|0,e);if(j>=0&&blockP[j>>1]===BP_BELT)n++;}return n===2;})()`));
  }
  const v=speed(kind,reverse),bar=speed(kind,reverse,true);
  const normal=throughput(kind,reverse,1),heavy=throughput(kind,reverse,16);
  check(`${name}: grain path speed matches belt`,Math.abs(v-30)<=3,v);
  check(`${name}: bar path speed matches belt`,Math.abs(bar-30)<=3,bar);
  check(`${name}: normal feed matches belt`,Math.abs(normal-30)<=3,normal);
  check(`${name}: heavy feed matches belt`,Math.abs(heavy-90)<=9,heavy);
}
fresh('screw-up-right',false);
run('placeBlock(BP_WALL,RSTONE,26,13,true);for(let k=0;k<1000;k++){transportFeed(ts,16);simTick();transportCollect(ts);}');
check('a blocked raised outlet holds its load and warns',run('transportStalled(15*BW+25)'));
run('removeBlock(26,13);');
const released=run('(()=>{let n=0;for(let k=0;k<600;k++){transportFeed(ts,16);simTick();n+=transportCollect(ts);}return n;})()');
check('clearing the raised outlet resumes delivery',released>0,released);
const line=chain();
check('mixed chain carries the full heavy belt feed',line.heavy>=89&&line.heavy<=91,JSON.stringify(line));
check('mixed chain has mutual diagonal joins',line.joined);
check('mixed chain conserves every supplied grain',line.added===line.accounted,`${line.added}/${line.accounted}`);
check('mixed chain spills no grains below its joins',line.stray===0,line.stray);
check('mixed chain has no growing piles at joins',line.late.every(([name,n],i)=>n<=line.early[i][1]+12),JSON.stringify(line.late));
done();