max history size

app/src/main/java/com/github/libretube/preferences/PreferenceHelper.kt

@@ -142,6 +142,12 @@ object PreferenceHelper {
 
         watchHistory += watchHistoryItem
 
+        // remove oldest item when the watch history is longer than the pref
+        val maxWatchHistorySize = getString(PreferenceKeys.WATCH_HISTORY_SIZE, "unlimited")
+        if (maxWatchHistorySize != "unlimited" && watchHistory.size > maxWatchHistorySize.toInt()) {
+            watchHistory.removeAt(0)
+        }
+
         val json = mapper.writeValueAsString(watchHistory)
         editor.putString("watch_history", json).apply()
     }

app/src/main/java/com/github/libretube/preferences/PreferenceKeys.kt

@@ -83,6 +83,11 @@ object PreferenceKeys {
     const val CLEAR_WATCH_POSITIONS = "clear_watch_positions"
     const val SHARE_WITH_TIME_CODE = "share_with_time_code"
 
+    /**
+     * History
+     */
+    const val WATCH_HISTORY_SIZE = "watch_history_size"
+
     /**
      * Error logs
      */

app/src/main/res/values/array.xml

@@ -649,6 +649,7 @@
         <item>1.25x</item>
         <item>1.5x</item>
         <item>2x</item>
+        <item>3x</item>
         <item>4x</item>
     </string-array>
     <string-array name="playbackSpeedValues">
@@ -659,6 +660,7 @@
         <item>1.25</item>
         <item>1.5</item>
         <item>2</item>
+        <item>3</item>
         <item>4</item>
     </string-array>
 
@@ -808,4 +810,22 @@
         <item>metered</item>
     </string-array>
 
+    <string-array name="historySize">
+        <item>20</item>
+        <item>50</item>
+        <item>100</item>
+        <item>150</item>
+        <item>200</item>
+        <item>@string/unlimited</item>
+    </string-array>
+
+    <string-array name="historySizeValues">
+        <item>20</item>
+        <item>50</item>
+        <item>100</item>
+        <item>150</item>
+        <item>200</item>
+        <item>unlimited</item>
+    </string-array>
+
 </resources>

app/src/main/res/values/strings.xml

@@ -294,4 +294,6 @@
     <string name="export_subscriptions">Export Subscriptions</string>
     <string name="skip_buttons">Skip buttons</string>
     <string name="skip_buttons_summary">Show buttons to skip to the next or previous video.</string>
+    <string name="history_size">Maximum history size</string>
+    <string name="unlimited">Unlimited</string>
 </resources>

app/src/main/res/xml/history_settings.xml

@@ -27,6 +27,15 @@
             app:key="watch_history_toggle"
             app:title="@string/watch_history" />
 
+        <ListPreference
+            android:defaultValue="unlimited"
+            android:entries="@array/historySize"
+            android:entryValues="@array/historySizeValues"
+            android:icon="@drawable/ic_list"
+            app:key="watch_history_size"
+            app:title="@string/history_size"
+            app:useSimpleSummaryProvider="true" />
+
         <Preference
             android:icon="@drawable/ic_trash"
             app:key="clear_watch_history"