From f6d3c38d03b87f9db52eb2a615cd449f5710a856 Mon Sep 17 00:00:00 2001
From: Andreas E <andreas.everos@gmail.com>
Date: Sat, 3 Oct 2020 16:54:42 +0200
Subject: [PATCH] Ability to delete reading history (#3871)

* Added ability to delete history for all manga

* Fix review comments

(cherry picked from commit 812368e332b56a3b8964e7c1247c9fbc18804516)
---
 .../ui/setting/SettingsAdvancedController.kt  | 26 +++++++++++++++++++
 app/src/main/res/values/strings.xml           |  4 +++
 2 files changed, 30 insertions(+)

diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsAdvancedController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsAdvancedController.kt
index edab951ac..7838b718b 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsAdvancedController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsAdvancedController.kt
@@ -114,6 +114,16 @@ class SettingsAdvancedController : SettingsController() {
                     ctrl.showDialog(router)
                 }
             }
+            preference {
+                titleRes = R.string.pref_clear_history
+                summaryRes = R.string.pref_clear_history_summary
+
+                onClick {
+                    val ctrl = ClearHistoryDialogController()
+                    ctrl.targetController = this@SettingsAdvancedController
+                    ctrl.showDialog(router)
+                }
+            }
         }
 
         preferenceCategory {
@@ -402,6 +412,22 @@ class SettingsAdvancedController : SettingsController() {
         }
     }
 
+    class ClearHistoryDialogController : DialogController() {
+        override fun onCreateDialog(savedViewState: Bundle?): Dialog {
+            return MaterialDialog(activity!!)
+                .message(R.string.clear_history_confirmation)
+                .positiveButton(android.R.string.ok) {
+                    (targetController as? SettingsAdvancedController)?.clearHistory()
+                }
+                .negativeButton(android.R.string.cancel)
+        }
+    }
+
+    private fun clearHistory() {
+        db.deleteHistory().executeAsBlocking()
+        activity?.toast(R.string.clear_history_completed)
+    }
+
     private fun clearDatabase() {
         db.deleteMangasNotInLibrary().executeAsBlocking()
         db.deleteHistoryNoLastRead().executeAsBlocking()
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index f1774c807..fef57fd49 100755
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -403,6 +403,10 @@
     <string name="pref_disable_battery_optimization_summary">Helps with background library updates and backups</string>
     <string name="battery_optimization_disabled">Battery optimization is already disabled</string>
     <string name="battery_optimization_setting_activity_not_found">Couldn\'t open device settings</string>
+    <string name="clear_history_completed">History deleted</string>
+    <string name="clear_history_confirmation">Are you sure? All history will be lost.</string>
+    <string name="pref_clear_history">Clear history</string>
+    <string name="pref_clear_history_summary">Delete reading history for all manga</string>
 
       <!-- About section -->
     <string name="website">Website</string>