From dde0c18f51334b2b77f8e9136d0b687570d1486a Mon Sep 17 00:00:00 2001
From: Joerg <joerg@dj7nt.de>
Date: Thu, 15 Jan 2026 22:05:09 +0100
Subject: [PATCH] 1st sync Full

---
 src/backend/services/lotw.service.js | 29 +++++++++++++++++-----------
 1 file changed, 18 insertions(+), 11 deletions(-)

diff --git a/src/backend/services/lotw.service.js b/src/backend/services/lotw.service.js
index dc78ab9..4788b0b 100644
--- a/src/backend/services/lotw.service.js
+++ b/src/backend/services/lotw.service.js
@@ -99,15 +99,15 @@ export async function fetchQSOsFromLoTW(lotwUsername, lotwPassword, sinceDate =
     qso_withown: 'yes', // Include own callsign
   });
 
-  // Add date filter - ALWAYS send qso_qslsince to get all QSOs
-  // LoTW default behavior only returns QSOs since last download, so we must
-  // explicitly send a date to get QSOs since that date
-  const dateStr = sinceDate
-    ? sinceDate.toISOString().split('T')[0]
-    : '2026-01-01'; // Default: Get QSOs since 2026-01-01
-  params.append('qso_qslsince', dateStr);
-
-  console.error('Date filter:', dateStr, sinceDate ? '(User-specified date)' : '(Default: since 2026-01-01)');
+  // Add date filter - only add qso_qslsince if we have a last QSL date
+  // For first sync (no QSOs in DB), don't filter by date to get ALL QSOs
+  if (sinceDate) {
+    const dateStr = sinceDate.toISOString().split('T')[0];
+    params.append('qso_qslsince', dateStr);
+    console.error('Date filter:', dateStr, '(Incremental sync since last QSL date)');
+  } else {
+    console.error('No date filter - fetching ALL QSOs (first sync)');
+  }
 
   const fullUrl = `${url}?${params.toString()}`;
 
@@ -623,9 +623,16 @@ export async function syncQSOsForJob(jobId, userId, data) {
 
     // Get last LoTW QSL date for incremental sync
     const lastQSLDate = await getLastLoTWQSLDate(userId);
-    const sinceDate = lastQSLDate || new Date('2026-01-01'); // Default as per Wavelog
 
-    console.error(`[Job ${jobId}] Syncing LoTW QSOs since ${sinceDate.toISOString().split('T')[0]}`);
+    // If no QSOs exist, use a far past date to get ALL QSOs (first sync)
+    // Otherwise, use the last QSL date for incremental sync
+    const sinceDate = lastQSLDate || new Date('2000-01-01');
+
+    if (lastQSLDate) {
+      console.error(`[Job ${jobId}] Incremental sync since ${sinceDate.toISOString().split('T')[0]}`);
+    } else {
+      console.error(`[Job ${jobId}] Full sync - fetching ALL QSOs since 2000-01-01`);
+    }
 
     // Fetch from LoTW
     const adifQSOs = await fetchQSOsFromLoTW(lotwUsername, lotwPassword, sinceDate);