import { pipeline, env } from '@huggingface/transformers';
env.allowLocalModels = false;
env.cacheDir = '/Users/Studio/Library/Application Support/Church Translate Models';
const pipe = await pipeline('translation','Xenova/nllb-200-distilled-600M',{dtype:'fp32'});
const G = [
 ["Habakkuk stood upon his watchtower.","He waited to see what the Lord would say to him.","And the Lord answered him and told him to write the vision.","Make it plain upon tablets, so that he may run who reads it."],
 ["Turn with me to Second Chronicles chapter seven.","If my people who are called by my name will humble themselves and pray,","and seek my face and turn from their wicked ways,","then will I hear from heaven and will heal their land."],
 ["Paul wrote to the church at Philippi from a prison cell.","He told them to rejoice in the Lord always.","And again he said unto them, rejoice.","Let your moderation be known unto all men, for the Lord is at hand."],
];
const L=[['hat_Latn','Haitian'],['arb_Arab','Arabic'],['kor_Hang','Korean']];
const t=async(x,c)=>{const s=Date.now();const r=await pipe(x,{src_lang:'eng_Latn',tgt_lang:c});return{text:(Array.isArray(r)?r[0]:r).translation_text.trim(),ms:Date.now()-s}};
await t(G[0][0],'spa_Latn');
function ng(s,n){const q=s.replace(/\s+/g,'');const m=new Map();for(let i=0;i+n<=q.length;i++){const g=q.slice(i,i+n);m.set(g,(m.get(g)||0)+1)}return m}
function chrF(h,r,N=6,b=2){let P=0,R=0,c=0;for(let n=1;n<=N;n++){const H=ng(h,n),F=ng(r,n);let hs=0,rs=0,ov=0;for(const[g,x]of H){hs+=x;ov+=Math.min(x,F.get(g)||0)}for(const[,x]of F)rs+=x;if(!hs||!rs)continue;P+=ov/hs;R+=ov/rs;c++}if(!c)return 0;const p=P/c,r2=R/c;return p+r2?(1+b*b)*p*r2/(b*b*p+r2):0}
console.log('lang     nSent  lenRatio(out/sum-of-singles)  covLAST  covFIRST  ms');
for(const[code,name]of L){
 for(const gi in G){
  const S=G[gi];
  const singles=[];for(const s of S)singles.push((await t(s,code)).text);
  for(const n of [2,3,4]){
   const src=S.slice(0,n).join(' ');
   const o=await t(src,code);
   const sumLen=singles.slice(0,n).reduce((a,x)=>a+x.length,0);
   console.log(name.padEnd(9)+String(n).padStart(4)+
     ('   '+(o.text.length/sumLen).toFixed(2)).padStart(28)+
     ('  '+chrF(o.text,singles[n-1]).toFixed(3)).padStart(9)+
     ('  '+chrF(o.text,singles[0]).toFixed(3)).padStart(10)+
     ('  '+o.ms).padStart(8));
   if(n===4)console.log('     OUT:',o.text.slice(0,240));
  }
 }
}