From bba06bab6f4f01678cff812c44bcc577582577ee Mon Sep 17 00:00:00 2001
From: kim <kim@applecherry.net>
Date: Tue, 2 Jun 2026 15:15:08 +0900
Subject: [PATCH] Fix wizard re-run: skip existing PDF/text, preserve state
 across restarts
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Server:
- download-pdf-stream: check if PDF already exists (size > 1KB) → return
  cached path immediately, skip all network requests

Client (startPrep):
- save pdfPaths from prepLog before reset → skip PMC download if path known
- skip text extraction if paperTexts[key] already loaded in memory
- text from project open (onOpenProjChange) now survives "다시 실행"

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 src/gateway/server-v2.ts |  7 +++++++
 web-ui/pptx-wizard.html  | 18 +++++++++++++++---
 2 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/src/gateway/server-v2.ts b/src/gateway/server-v2.ts
index 7e67b0e..8805fa3 100644
--- a/src/gateway/server-v2.ts
+++ b/src/gateway/server-v2.ts
@@ -9691,6 +9691,13 @@ app.post('/api/pptx/download-pdf-stream', requireGatewayAuth, async (req: expres
     const pdfDest = path.join(workspacePath, projectSlug ? pptxRelPath(projectSlug, `${pmcid}.pdf`) : `pubmed/${pmcid}.pdf`);
     fs.mkdirSync(path.dirname(pdfDest), { recursive: true });
 
+    // 이미 다운로드된 PDF가 있으면 즉시 반환
+    if (fs.existsSync(pdfDest) && fs.statSync(pdfDest).size > 1024) {
+      const relPath = path.relative(workspacePath, pdfDest).replace(/\\/g, '/');
+      send({ type: 'done', success: true, path: relPath, stdout: relPath, _cached: true });
+      res.end(); return;
+    }
+
     // 1. OA API → FTP link + check OA
     send({ type: 'progress', msg: 'PMC OA 확인 중...' });
     let oaXml = '';
diff --git a/web-ui/pptx-wizard.html b/web-ui/pptx-wizard.html
index 6cc9a20..4d81c5f 100644
--- a/web-ui/pptx-wizard.html
+++ b/web-ui/pptx-wizard.html
@@ -1908,7 +1908,11 @@ async function startPrep() {
   if(btn.disabled) return; // 이미 실행 중
   btn.disabled=true; btn.textContent='진행 중...';
   setMsg(2,'준비 중...','var(--brand2)');
-  const keys=Array.from(selected); prepLog={}; renderProgList(); extractedImages=[];
+  const keys=Array.from(selected);
+  // prepLog 리셋 전에 기존 pdfPath 보존 (재실행 시 재다운로드 방지)
+  const savedPdfPaths={};
+  for(const k of keys){ if(prepLog[k]?.pdfPath) savedPdfPaths[k]=prepLog[k].pdfPath; }
+  prepLog={}; renderProgList(); extractedImages=[];
   document.getElementById('imgrid').innerHTML='<div style="color:var(--muted);font-size:11px">📷 이미지 캡처 버튼으로 추가하세요</div>';
 
   // 프로젝트 slug 결정 — PDF/이미지를 프로젝트 폴더에 직접 저장 (항상 결정)
@@ -1945,6 +1949,12 @@ async function startPrep() {
         prepLog[key].pdf='done'; prepLog[key].pdfPath=pdfPath; updProg(key);
         if(!pdfPath){ prepLog[key].img='fail'; prepLog[key].txt='fail'; prepLog[key].error='PDF 경로 확인 불가'; updProg(key); continue; }
         setMsg(2,paperLabel(key)+' 이미지 추출...','var(--brand2)');
+      } else if(savedPdfPaths[key]) {
+        // 이전 실행에서 다운로드된 PDF — 재다운로드 스킵
+        pdfPath=savedPdfPaths[key];
+        prepLog[key].pdf='done'; prepLog[key].pdfPath=pdfPath;
+        setMsg(2,paperLabel(key)+' PDF 이미 있음 — 스킵','var(--muted)');
+        updProg(key);
       } else {
         // PMC 다운로드 (SSE 스트리밍)
         setMsg(2,key+' PDF 다운로드...','var(--brand2)');
@@ -2033,8 +2043,10 @@ async function startPrep() {
         prepLog[key].img='skip'; updProg(key);
       }
 
-      // Text extract (토글 ON일 때만)
-      if(extractText && pdfPath){
+      // Text extract (토글 ON일 때만, 이미 있으면 스킵)
+      if(extractText && pdfPath && paperTexts[key]){
+        prepLog[key].txt='done'; updProg(key); // 이미 로드된 텍스트 유지
+      } else if(extractText && pdfPath){
         prepLog[key].txt='running'; updProg(key);
         setMsg(2,paperLabel(key)+' 텍스트 추출...','var(--brand2)');
         try{