Add dialog to export messages

app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/MainActivity.kt

@@ -18,19 +18,25 @@ import com.simplemobiletools.commons.models.FAQItem
 import com.simplemobiletools.smsmessenger.BuildConfig
 import com.simplemobiletools.smsmessenger.R
 import com.simplemobiletools.smsmessenger.adapters.ConversationsAdapter
+import com.simplemobiletools.smsmessenger.dialogs.ExportMessagesDialog
 import com.simplemobiletools.smsmessenger.extensions.*
+import com.simplemobiletools.smsmessenger.helpers.EXPORT_MIME_TYPE
 import com.simplemobiletools.smsmessenger.helpers.THREAD_ID
 import com.simplemobiletools.smsmessenger.helpers.THREAD_TITLE
 import com.simplemobiletools.smsmessenger.models.Conversation
 import com.simplemobiletools.smsmessenger.models.Events
+import java.io.OutputStream
+import java.util.ArrayList
+import java.util.Arrays
 import kotlinx.android.synthetic.main.activity_main.*
 import org.greenrobot.eventbus.EventBus
 import org.greenrobot.eventbus.Subscribe
 import org.greenrobot.eventbus.ThreadMode
-import java.util.*
 
 class MainActivity : SimpleActivity() {
     private val MAKE_DEFAULT_APP_REQUEST = 1
+    private val PICK_IMPORT_SOURCE_INTENT = 11
+    private val PICK_EXPORT_FILE_INTENT = 21
 
     private var storedTextColor = 0
     private var storedFontSize = 0
@@ -108,6 +114,8 @@ class MainActivity : SimpleActivity() {
         when (item.itemId) {
             R.id.search -> launchSearch()
             R.id.settings -> launchSettings()
+            R.id.export_messages -> tryToExportMessages()
+            R.id.import_messages -> launchSettings()
             R.id.about -> launchAbout()
             else -> return super.onOptionsItemSelected(item)
         }
@@ -122,6 +130,11 @@ class MainActivity : SimpleActivity() {
             } else {
                 finish()
             }
+        } else if (requestCode == PICK_IMPORT_SOURCE_INTENT && resultCode == Activity.RESULT_OK && resultData != null && resultData.data != null) {
+
+        } else if (requestCode == PICK_EXPORT_FILE_INTENT && resultCode == Activity.RESULT_OK && resultData != null && resultData.data != null) {
+            val outputStream = contentResolver.openOutputStream(resultData.data!!)
+            exportMessagesTo(outputStream)
         }
     }
 
@@ -318,6 +331,36 @@ class MainActivity : SimpleActivity() {
         startAboutActivity(R.string.app_name, licenses, BuildConfig.VERSION_NAME, faqItems, true)
     }
 
+    private fun tryToExportMessages() {
+        if (isQPlus()) {
+            ExportMessagesDialog(this, config.lastExportPath, true) { file ->
+
+                Intent(Intent.ACTION_CREATE_DOCUMENT).apply {
+                    type = EXPORT_MIME_TYPE
+                    putExtra(Intent.EXTRA_TITLE, file.name)
+                    addCategory(Intent.CATEGORY_OPENABLE)
+                    startActivityForResult(this, PICK_EXPORT_FILE_INTENT)
+                }
+            }
+        } else {
+            handlePermission(PERMISSION_WRITE_STORAGE) {
+                if (it) {
+                    ExportMessagesDialog(this, config.lastExportPath, false) { file ->
+                        getFileOutputStream(file.toFileDirItem(this), true) { outStream->
+                            exportMessagesTo(outStream)
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    private fun exportMessagesTo(outputStream: OutputStream?) {
+        ensureBackgroundThread {
+
+        }
+    }
+
     @Subscribe(threadMode = ThreadMode.MAIN)
     fun refreshMessages(event: Events.RefreshMessages) {
         initMessenger()

app/src/main/kotlin/com/simplemobiletools/smsmessenger/dialogs/ExportMessagesDialog.kt

@@ -0,0 +1,76 @@
+package com.simplemobiletools.smsmessenger.dialogs
+
+import android.view.ViewGroup
+import androidx.appcompat.app.AlertDialog
+import com.simplemobiletools.commons.dialogs.FilePickerDialog
+import com.simplemobiletools.commons.extensions.*
+import com.simplemobiletools.commons.helpers.ensureBackgroundThread
+import com.simplemobiletools.smsmessenger.R
+import com.simplemobiletools.smsmessenger.activities.SimpleActivity
+import com.simplemobiletools.smsmessenger.extensions.config
+import com.simplemobiletools.smsmessenger.helpers.EXPORT_FILE_EXT
+import java.io.File
+import kotlinx.android.synthetic.main.dialog_export_messages.view.*
+
+class ExportMessagesDialog(
+    private val activity: SimpleActivity,
+    private val path: String,
+    private val hidePath: Boolean,
+    private val callback: (file: File) -> Unit,
+) {
+    private var realPath = if (path.isEmpty()) activity.internalStoragePath else path
+    private val config = activity.config
+
+    init {
+        val view = (activity.layoutInflater.inflate(R.layout.dialog_export_messages, null) as ViewGroup).apply {
+            export_messages_folder.text = activity.humanizePath(realPath)
+            export_messages_filename.setText("${activity.getString(R.string.messages)}_${activity.getCurrentFormattedDateTime()}")
+            export_sms_checkbox.isChecked = config.exportSms
+            export_mms_checkbox.isChecked = config.exportMms
+
+            if (hidePath) {
+                export_messages_folder_label.beGone()
+                export_messages_folder.beGone()
+            } else {
+                export_messages_folder.setOnClickListener {
+                    activity.hideKeyboard(export_messages_filename)
+                    FilePickerDialog(activity, realPath, false, showFAB = true) {
+                        export_messages_folder.text = activity.humanizePath(it)
+                        realPath = it
+                    }
+                }
+            }
+        }
+
+        AlertDialog.Builder(activity)
+            .setPositiveButton(R.string.ok, null)
+            .setNegativeButton(R.string.cancel, null)
+            .create().apply {
+                activity.setupDialogStuff(view, this, R.string.export_messages) {
+                    getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener {
+                        val filename = view.export_messages_filename.value
+                        when {
+                            filename.isEmpty() -> activity.toast(R.string.empty_name)
+                            filename.isAValidFilename() -> {
+                                val file = File(realPath, "$filename$EXPORT_FILE_EXT")
+                                if (!hidePath && file.exists()) {
+                                    activity.toast(R.string.name_taken)
+                                    return@setOnClickListener
+                                }
+
+                                ensureBackgroundThread {
+                                    config.lastExportPath = file.absolutePath.getParentPath()
+                                    config.exportSms = view.export_sms_checkbox.isChecked
+                                    config.exportMms = view.export_mms_checkbox.isChecked
+
+                                    callback(file)
+                                    dismiss()
+                                }
+                            }
+                            else -> activity.toast(R.string.invalid_name)
+                        }
+                    }
+                }
+            }
+    }
+}

app/src/main/kotlin/com/simplemobiletools/smsmessenger/helpers/Config.kt

@@ -25,4 +25,17 @@ class Config(context: Context) : BaseConfig(context) {
     var lockScreenVisibilitySetting: Int
         get() = prefs.getInt(LOCK_SCREEN_VISIBILITY, LOCK_SCREEN_SENDER_MESSAGE)
         set(lockScreenVisibilitySetting) = prefs.edit().putInt(LOCK_SCREEN_VISIBILITY, lockScreenVisibilitySetting).apply()
+
+    var lastExportPath: String
+        get() = prefs.getString(LAST_EXPORT_PATH, "")!!
+        set(lastExportPath) = prefs.edit().putString(LAST_EXPORT_PATH, lastExportPath).apply()
+
+    var exportSms: Boolean
+        get() = prefs.getBoolean(EXPORT_SMS, true)
+        set(exportSms) = prefs.edit().putBoolean(EXPORT_SMS, exportSms).apply()
+
+    var exportMms: Boolean
+        get() = prefs.getBoolean(EXPORT_MMS, true)
+        set(exportMms) = prefs.edit().putBoolean(EXPORT_MMS, exportMms).apply()
+
 }

app/src/main/kotlin/com/simplemobiletools/smsmessenger/helpers/Constants.kt

@@ -15,6 +15,11 @@ const val NOTIFICATION_CHANNEL = "simple_sms_messenger"
 const val SHOW_CHARACTER_COUNTER = "show_character_counter"
 const val LOCK_SCREEN_VISIBILITY = "lock_screen_visibility"
 const val ENABLE_DELIVERY_REPORTS = "enable_delivery_reports"
+const val LAST_EXPORT_PATH = "last_export_path"
+const val EXPORT_SMS = "export_sms"
+const val EXPORT_MMS = "export_mms"
+const val EXPORT_MIME_TYPE = "application/json"
+const val EXPORT_FILE_EXT = ".json"
 
 private const val PATH = "com.simplemobiletools.smsmessenger.action."
 const val MARK_AS_READ = PATH + "mark_as_read"

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

@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/export_messages_scrollview"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <LinearLayout
+        android:id="@+id/export_messages_holder"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:paddingStart="@dimen/activity_margin"
+        android:paddingTop="@dimen/activity_margin"
+        android:paddingEnd="@dimen/activity_margin">
+
+        <com.simplemobiletools.commons.views.MyTextView
+            android:id="@+id/export_messages_folder_label"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/folder"
+            android:textSize="@dimen/smaller_text_size" />
+
+        <com.simplemobiletools.commons.views.MyTextView
+            android:id="@+id/export_messages_folder"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="@dimen/activity_margin"
+            android:layout_marginBottom="@dimen/activity_margin"
+            android:paddingTop="@dimen/small_margin"
+            android:paddingEnd="@dimen/small_margin"
+            android:paddingBottom="@dimen/small_margin" />
+
+        <com.simplemobiletools.commons.views.MyTextView
+            android:id="@+id/export_messages_filename_label"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/filename"
+            android:textSize="@dimen/smaller_text_size" />
+
+        <com.simplemobiletools.commons.views.MyEditText
+            android:id="@+id/export_messages_filename"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="@dimen/activity_margin"
+            android:layout_marginBottom="@dimen/activity_margin"
+            android:paddingTop="@dimen/normal_margin"
+            android:paddingEnd="@dimen/small_margin"
+            android:textSize="@dimen/normal_text_size" />
+
+        <com.simplemobiletools.commons.views.MyAppCompatCheckbox
+            android:id="@+id/export_sms_checkbox"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="@dimen/activity_margin"
+            android:paddingTop="@dimen/small_margin"
+            android:paddingBottom="@dimen/small_margin"
+            android:text="@string/export_sms" />
+
+        <com.simplemobiletools.commons.views.MyAppCompatCheckbox
+            android:id="@+id/export_mms_checkbox"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="@dimen/activity_margin"
+            android:paddingTop="@dimen/small_margin"
+            android:paddingBottom="@dimen/small_margin"
+            android:text="@string/export_mms" />
+
+    </LinearLayout>
+</ScrollView>

app/src/main/res/menu/menu_main.xml

@@ -10,6 +10,16 @@
         android:id="@+id/settings"
         android:title="@string/settings"
         app:showAsAction="never" />
+
+    <item
+        android:id="@+id/import_messages"
+        android:title="@string/import_messages"
+        app:showAsAction="never"/>
+
+    <item
+        android:id="@+id/export_messages"
+        android:title="@string/export_messages"
+        app:showAsAction="never"/>
     <item
         android:id="@+id/about"
         android:title="@string/about"

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

@@ -15,8 +15,6 @@
     <string name="no_reply_support">Sender doesn\'t support replies</string>
     <string name="draft">Draft</string>
     <string name="sending">Sending…</string>
-    <string name="export_messages">Export messages</string>
-    <string name="import_messages">Import messages</string>
 
     <!-- New conversation -->
     <string name="new_conversation">New conversation</string>
@@ -50,6 +48,13 @@
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
 
+    <!-- Export / Import -->
+    <string name="messages">Messages</string>
+    <string name="export_messages">Export messages</string>
+    <string name="export_sms">Export SMS</string>
+    <string name="export_mms">Export MMS</string>
+    <string name="import_messages">Import messages</string>
+
     <!-- FAQ -->
     <string name="faq_1_title">Why does the app require access to the internet?</string>
     <string name="faq_1_text">Sadly it is needed for sending MMS attachments. Not being able to send MMS would be a really huge disadvantage compared to other apps, so we decided to go this way.