feat: analyze complete long documents in bounded source parts

server/ai.mjs

@@ -1,3 +1,4 @@
+import { analyzeInParts } from './analysis-parts.mjs';
 import { qualifyAnalysis } from './analysis-quality.mjs';
 /**
  * Gerçek AI şartname analizi — OpenRouter öncelikli, çoklu sağlayıcı fallback.
@@ -316,7 +317,14 @@ function kesikJsonOnar(s) {
 }
 
 /** Zinciri sırayla dener; ilk başarılı sonucu döndürür. */
-export async function analyzeSpec({ text, fileName, tender, chain, systemOverride, mode }) {
+export async function analyzeSpec({ text, fileName, tender, chain, systemOverride, mode, _singlePart = false }) {
+  if (!_singlePart && String(text || '').length > 24000) {
+    return analyzeInParts({text,fileName,tender,mode}, part => analyzeSpec({
+      text:part.text,fileName:`${fileName || 'Doküman'} — bölüm ${part.index+1}`,
+      tender:tender ? {...tender,items:[]} : undefined,chain,mode,_singlePart:true,
+      systemOverride:(systemOverride || (mode === 'derin' ? DERIN_SYSTEM_PROMPT : SYSTEM_PROMPT)) + '\nBu metin büyük dokümanın bir bölümüdür. Yalnız bu bölümde görülen koşulları çıkar; bu bölümde bulunmayan şartın bütün dokümanda bulunmadığı sonucunu çıkarma.',
+    }));
+  }
   const derin = mode === 'derin';
   // Ücretli yedek: Gemini Flash her zaman zincirin sonunda. Panelde seçilen
   // modeller (ör. ücretsiz/limitli olanlar) tıkanınca analiz boş kalmasın;

server/analysis-parts.mjs

@@ -0,0 +1,55 @@
+import {qualifyAnalysis} from './analysis-quality.mjs';
+export function splitAnalysisText(text,max=24000) {
+  if(!Number.isInteger(max) || max<100)throw new Error('Geçersiz parça boyutu.');
+  const source=String(text || ''),parts=[];
+  for(let start=0;start<source.length;) {
+    let end=Math.min(start+max,source.length);
+    if(end<source.length){const newline=source.lastIndexOf('\n',end-1);if(newline>start+max/2)end=newline+1;}
+    // Do not split a UTF-16 surrogate pair.
+    if(end<source.length && /[\uD800-\uDBFF]/.test(source[end-1]))end--;
+    parts.push({index:parts.length,start,end,text:source.slice(start,end)});start=end;
+  }
+  return parts;
+}
+const arrayFields=['qualificationCriteria','criticalRequirements','risksAndPenalties','disqualificationRisks','criticalDetails','itemsAndSpecs','documentChecklist','deadlines','costDrivers','roadmap','questionsForAdministration'];
+export async function analyzeInParts(input,runPart) {
+  const parts=splitAnalysisText(input.text),results=[],failures=[];
+  // Two requests at a time bounds provider pressure while processing every part.
+  for(let i=0;i<parts.length;i+=2) {
+    await Promise.all(parts.slice(i,i+2).map(async part=>{
+      try {results.push({part,out:await runPart(part)});}
+      catch(error){failures.push({part,error:String(error.message || error)});}
+    }));
+  }
+  results.sort((a,b)=>a.part.index-b.part.index);
+  if(!results.length)throw new Error('Dokümanın hiçbir parçası analiz edilemedi.');
+  const merged={},issues=failures.map(f=>`${f.part.index+1}. parça analiz edilemedi.`);
+  for(const field of arrayFields) {
+    if(field==='itemsAndSpecs') {
+      // Identical rows may be separate official items; retain them with origin.
+      merged[field]=results.flatMap(({part,out})=>(out.result[field] || []).map(row=>({...row,sourcePart:part.index+1,sourceRange:{start:part.start,end:part.end}})));
+      continue;
+    }
+    const entries=new Map();
+    for(const {out} of results) for(const value of out.result[field] || [])entries.set(JSON.stringify(value),value);
+    merged[field]=[...entries.values()];
+  }
+  for(const field of ['summary','scopeOfWork'])merged[field]=results.map(({part,out})=>out.result[field] ? `Bölüm ${part.index+1}: ${out.result[field]}` : '').filter(Boolean).join('\n\n');
+  // Different part-level prices/strategies cannot be treated as a global bid.
+  merged.bidAnalysis=null;
+  const quantities=new Map();
+  for(const row of merged.itemsAndSpecs) {
+    const key=JSON.stringify([row.itemNumber ?? row.no ?? null,row.kisim ?? null,row.name]);
+    if(quantities.has(key) && quantities.get(key)!==row.quantity)issues.push(`${row.name}: bölümler arasında farklı miktar/birim bulundu.`);
+    quantities.set(key,row.quantity);
+  }
+  for(const {part,out} of results) for(const issue of out.result.sourceReview?.issues || [])issues.push(`Bölüm ${part.index+1}: ${issue}`);
+  const result=qualifyAnalysis(merged,{text:input.text,limit:String(input.text).length,fileName:input.fileName,expectedItems:input.tender?.items?.length || 0});
+  const ownIssues=[...result.sourceReview.issues,...issues];
+  result.sourceReview={...result.sourceReview,status:ownIssues.length?'partial':'review_required',issues:ownIssues,
+    analyzedCharacters:results.reduce((sum,{part})=>sum+part.end-part.start,0),
+    parts:parts.map(part=>({index:part.index+1,start:part.start,end:part.end,status:failures.some(f=>f.part.index===part.index)?'failed':'processed'}))};
+  return {result,mode:input.mode==='derin'?'derin':'standart',model:{id:'document-parts',label:'Doküman analizi',provider:'',model:'document-parts'},
+    attempts:results.flatMap(({part,out})=>(out.attempts || []).map(a=>({...a,part:part.index+1}))),
+    partFailures:failures.map(({part})=>({part:part.index+1}))};
+}