From 621b4c09467dba6874eb0b85dedaa19698d19324 Mon Sep 17 00:00:00 2001
From: schroda <50052685+schroda@users.noreply.github.com>
Date: Sat, 23 Dec 2023 22:23:06 +0100
Subject: [PATCH] Correctly calculate the first chapter to download index
 (#796)

Subtracting 1 from the first chapter to download index caused an additional chapter to get downloaded (e.g. limit 4 would download 5 chapters)

Regression was introduced with 05bf4f552542053689ea491951c0afb1686e40b5
---
 .../src/main/kotlin/suwayomi/tachidesk/manga/impl/Chapter.kt   | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/Chapter.kt b/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/Chapter.kt
index 727a6596..3ee74d8b 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/Chapter.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/Chapter.kt
@@ -308,7 +308,6 @@ object Chapter {
                     ")",
             )
 
-        // convert numbers to be index based
         val newNumberOfChapters = updatedChapterList.size
         val numberOfNewChapters = newNumberOfChapters - prevNumberOfChapters
 
@@ -340,7 +339,7 @@ object Chapter {
 
         val firstChapterToDownloadIndex =
             if (serverConfig.autoDownloadAheadLimit.value > 0) {
-                (numberOfNewChapters - serverConfig.autoDownloadAheadLimit.value - 1).coerceAtLeast(0)
+                (numberOfNewChapters - serverConfig.autoDownloadAheadLimit.value).coerceAtLeast(0)
             } else {
                 0
             }