added option to remove old events in the settings (issue #2248)

app/src/main/kotlin/com/simplemobiletools/calendar/pro/activities/SettingsActivity.kt

@@ -1,13 +1,23 @@
 package com.simplemobiletools.calendar.pro.activities
 
+import android.annotation.SuppressLint
 import android.app.Activity
+import android.app.DatePickerDialog
 import android.app.TimePickerDialog
 import android.content.ActivityNotFoundException
 import android.content.Intent
+import android.icu.util.Calendar
 import android.media.AudioManager
 import android.media.RingtoneManager
+import android.os.Build
 import android.os.Bundle
+import android.util.Log
+import android.widget.RelativeLayout
+import android.widget.Button
+import android.widget.DatePicker
+import android.widget.ImageButton
 import android.widget.Toast
+import androidx.annotation.RequiresApi
 import com.google.android.material.timepicker.MaterialTimePicker
 import com.google.android.material.timepicker.TimeFormat
 import com.simplemobiletools.calendar.pro.R
@@ -27,7 +37,6 @@ import java.io.File
 import java.io.InputStream
 import java.io.OutputStream
 import java.text.SimpleDateFormat
-import java.util.Calendar
 import java.util.Locale
 import kotlin.system.exitProcess
 
@@ -36,13 +45,12 @@ class SettingsActivity : SimpleActivity() {
     private val PICK_SETTINGS_IMPORT_SOURCE_INTENT = 2
     private val PICK_EVENTS_IMPORT_SOURCE_INTENT = 3
     private val PICK_EVENTS_EXPORT_FILE_INTENT = 4
-
     private var mStoredPrimaryColor = 0
-
     private var eventTypesToExport = listOf<Long>()
-
     private val binding by viewBinding(ActivitySettingsBinding::inflate)
 
+    @SuppressLint("WrongViewCast")
+    @RequiresApi(Build.VERSION_CODES.N)
     override fun onCreate(savedInstanceState: Bundle?) {
         isMaterialActivity = true
         super.onCreate(savedInstanceState)
@@ -51,14 +59,42 @@ class SettingsActivity : SimpleActivity() {
 
         updateMaterialActivityViews(binding.settingsCoordinator, binding.settingsHolder, useTransparentNavigation = true, useTopSearchMenu = false)
         setupMaterialScrollListener(binding.settingsNestedScrollview, binding.settingsToolbar)
+
+        val settingsDeleteEventsBeforeDateHolder: RelativeLayout = findViewById(R.id.settings_delete_events_before_date_holder)
+        settingsDeleteEventsBeforeDateHolder.setOnClickListener {
+            showDatePickerDialog()
+        }
+    }
+
+    @RequiresApi(Build.VERSION_CODES.N)
+    private fun showDatePickerDialog() {
+        val currentDate = Calendar.getInstance()
+        val year = currentDate.get(Calendar.YEAR)
+        val month = currentDate.get(Calendar.MONTH)
+        val day = currentDate.get(Calendar.DAY_OF_MONTH)
+        val datePickerDialog = DatePickerDialog(
+            this,
+            { _, year, month, day ->
+                val selectedDate = Calendar.getInstance()
+                selectedDate.set(year, month, day)
+                val chosenDateTimestamp = selectedDate.timeInMillis
+                setupDeleteEventsBeforeDate(chosenDateTimestamp)
+            },
+            year,
+            month,
+            day
+        )
+        datePickerDialog.show()
     }
 
+    @RequiresApi(Build.VERSION_CODES.N)
     override fun onResume() {
         super.onResume()
         setupToolbar(binding.settingsToolbar, NavigationIcon.Arrow)
         setupSettingItems()
     }
 
+    @RequiresApi(Build.VERSION_CODES.N)
     private fun setupSettingItems() {
         setupCustomizeColors()
         setupCustomizeNotifications()
@@ -112,6 +148,7 @@ class SettingsActivity : SimpleActivity() {
         setupExportSettings()
         setupImportSettings()
 
+
         arrayOf(
             binding.settingsColorCustomizationSectionLabel,
             binding.settingsGeneralSettingsLabel,
@@ -144,6 +181,7 @@ class SettingsActivity : SimpleActivity() {
         config.defaultReminder3 = reminders.getOrElse(2) { REMINDER_OFF }
     }
 
+    @RequiresApi(Build.VERSION_CODES.N)
     override fun onActivityResult(requestCode: Int, resultCode: Int, resultData: Intent?) {
         super.onActivityResult(requestCode, resultCode, resultData)
         if (requestCode == GET_RINGTONE_URI && resultCode == RESULT_OK && resultData != null) {
@@ -402,10 +440,16 @@ class SettingsActivity : SimpleActivity() {
         settingsDeleteAllEventsHolder.setOnClickListener {
             ConfirmationDialog(this@SettingsActivity, messageId = R.string.delete_all_events_confirmation) {
                 eventsHelper.deleteAllEvents()
+
             }
         }
     }
 
+    @RequiresApi(Build.VERSION_CODES.N)
+    private fun setupDeleteEventsBeforeDate(chosenDateTimestamp: Long) = binding.apply {
+        eventsHelper.deleteEventsBeforeDate(chosenDateTimestamp)
+    }
+
     private fun setupDisplayDescription() = binding.apply {
         settingsDisplayDescription.isChecked = config.displayDescription
         settingsReplaceDescriptionHolder.beVisibleIf(config.displayDescription)
@@ -424,6 +468,7 @@ class SettingsActivity : SimpleActivity() {
         }
     }
 
+    @RequiresApi(Build.VERSION_CODES.N)
     private fun setupWeeklyStart() = binding.apply {
         settingsStartWeeklyAt.text = getHoursString(config.startWeeklyAt)
         settingsStartWeeklyAtHolder.setOnClickListener {
@@ -620,6 +665,7 @@ class SettingsActivity : SimpleActivity() {
         }
     }
 
+    @RequiresApi(Build.VERSION_CODES.N)
     private fun getHoursString(hours: Int): String {
         return if (config.use24HourFormat) {
             String.format("%02d:00", hours)
@@ -972,6 +1018,7 @@ class SettingsActivity : SimpleActivity() {
         }
     }
 
+    @RequiresApi(Build.VERSION_CODES.N)
     private fun setupImportSettings() {
         binding.settingsImportHolder.setOnClickListener {
             if (isQPlus()) {
@@ -1001,6 +1048,7 @@ class SettingsActivity : SimpleActivity() {
         }
     }
 
+    @RequiresApi(Build.VERSION_CODES.N)
     private fun parseFile(inputStream: InputStream?) {
         if (inputStream == null) {
             toast(com.simplemobiletools.commons.R.string.unknown_error_occurred)

app/src/main/kotlin/com/simplemobiletools/calendar/pro/helpers/EventsHelper.kt

@@ -2,6 +2,7 @@ package com.simplemobiletools.calendar.pro.helpers
 
 import android.app.Activity
 import android.content.Context
+import android.util.Log
 import android.widget.Toast
 import androidx.annotation.ColorRes
 import androidx.collection.LongSparseArray
@@ -13,6 +14,7 @@ import com.simplemobiletools.commons.extensions.getProperPrimaryColor
 import com.simplemobiletools.commons.extensions.toast
 import com.simplemobiletools.commons.helpers.CHOPPED_LIST_DEFAULT_SIZE
 import com.simplemobiletools.commons.helpers.ensureBackgroundThread
+import java.util.Calendar
 
 class EventsHelper(val context: Context) {
     private val config = context.config
@@ -257,6 +259,13 @@ class EventsHelper(val context: Context) {
         }
     }
 
+    fun deleteEventsBeforeDate(chosenDateTimestamp: Long) {
+        ensureBackgroundThread {
+            val eventIds = eventsDB.getEventIdsBeforeDate(chosenDateTimestamp).toMutableList()
+            deleteEvents(eventIds, true)
+        }
+    }
+
     fun deleteEvent(id: Long, deleteFromCalDAV: Boolean) = deleteEvents(arrayListOf(id), deleteFromCalDAV)
 
     fun deleteEvents(ids: MutableList<Long>, deleteFromCalDAV: Boolean) {

app/src/main/kotlin/com/simplemobiletools/calendar/pro/interfaces/EventsDao.kt

@@ -136,4 +136,6 @@ interface EventsDao {
 
     @Query("DELETE FROM events WHERE source = :source AND import_id = :importId")
     fun deleteBirthdayAnniversary(source: String, importId: String): Int
+    @Query("SELECT id FROM events WHERE start_ts*1000 < :chosenDateTimestamp")
+    fun getEventIdsBeforeDate(chosenDateTimestamp: Long): List<Long>
 }

app/src/main/res/layout/activity_settings.xml

@@ -884,6 +884,22 @@
 
             </RelativeLayout>
 
+            <RelativeLayout
+                android:id="@+id/settings_delete_events_before_date_holder"
+                style="@style/SettingsHolderTextViewOneLinerStyle"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:clickable="true">
+
+                <com.simplemobiletools.commons.views.MyTextView
+                    android:id="@+id/settings_before_events_from_date"
+                    style="@style/SettingsTextLabelStyle"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="Delete events and tasks before a specific date" />
+
+            </RelativeLayout>
+
             <include
                 android:id="@+id/settings_events_divider"
                 layout="@layout/divider" />

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

@@ -159,7 +159,7 @@
     <string name="add_holidays">Ajouter des jours fériés</string>
     <string name="national_holidays">Jours fériés nationaux</string>
     <string name="religious_holidays">Jours fériés religieux</string>
-    <string name="holidays_imported_successfully">Les jours fériés ont été correctement importés dans le type d'évènement \'Jours fériés\'</string>
+    <string name="holidays_imported_successfully">Les jours fériés ont été correctement importés dans le type d\'évènement \'Jours fériés\'</string>
     <string name="importing_some_holidays_failed">L\'importation de certains évènements a échoué</string>
     <string name="importing_holidays_failed">L\'importation des jours fériés a échoué</string>
     <!-- Settings -->