From 5e89c1c11c2ba2f0a4f5ae031350800d138c8a9b Mon Sep 17 00:00:00 2001
From: arkon <eugcheung94@gmail.com>
Date: Sun, 18 Jul 2021 13:12:47 -0400
Subject: [PATCH] Require Komga to be installed when attempting to setup
 tracker (closes #5491)

(cherry picked from commit a69a8337169798710f9e0cd7072b3fd3be4a5917)
---
 .../ui/setting/SettingsTrackingController.kt       | 14 ++++++++++++--
 app/src/main/res/values/strings.xml                |  1 +
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsTrackingController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsTrackingController.kt
index 095715955..f6dc9e775 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsTrackingController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsTrackingController.kt
@@ -4,6 +4,7 @@ import android.app.Activity
 import android.view.Menu
 import android.view.MenuInflater
 import android.view.MenuItem
+import android.widget.Toast
 import androidx.preference.PreferenceGroup
 import androidx.preference.PreferenceScreen
 import eu.kanade.tachiyomi.R
@@ -26,6 +27,7 @@ import eu.kanade.tachiyomi.util.preference.preferenceCategory
 import eu.kanade.tachiyomi.util.preference.switchPreference
 import eu.kanade.tachiyomi.util.preference.titleRes
 import eu.kanade.tachiyomi.util.system.openInBrowser
+import eu.kanade.tachiyomi.util.system.toast
 import eu.kanade.tachiyomi.widget.preference.LoginPreference
 import uy.kohesive.injekt.injectLazy
 import eu.kanade.tachiyomi.data.preference.PreferenceKeys as Keys
@@ -81,8 +83,16 @@ class SettingsTrackingController :
             }
 
             trackPreference(trackManager.komga) {
-                trackManager.komga.loginNoop()
-                updatePreference(trackManager.komga.id)
+                val acceptedSources = trackManager.komga.getAcceptedSources()
+                val hasValidSourceInstalled = sourceManager.getCatalogueSources()
+                    .any { it::class.qualifiedName in acceptedSources }
+
+                if (hasValidSourceInstalled) {
+                    trackManager.komga.loginNoop()
+                    updatePreference(trackManager.komga.id)
+                } else {
+                    context.toast(R.string.tracker_komga_warning, Toast.LENGTH_LONG)
+                }
             }
 
             infoPreference(R.string.enhanced_tracking_info)
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index ffb2ca229..6483f16f6 100755
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -587,6 +587,7 @@
     <string name="tracker_myanimelist" translatable="false">MyAnimeList</string>
     <string name="tracker_kitsu" translatable="false">Kitsu</string>
     <string name="tracker_komga" translatable="false">Komga</string>
+    <string name="tracker_komga_warning">This tracker is only compatible with the Komga source.</string>
     <string name="tracker_bangumi" translatable="false">Bangumi</string>
     <string name="tracker_shikimori" translatable="false">Shikimori</string>
     <string name="manga_tracking_tab">Tracking</string>