Add backup/restore config again

app/src/main/java/icu/nullptr/hidemyapplist/ui/util/ThemeUtils.kt

@@ -2,9 +2,7 @@ package icu.nullptr.hidemyapplist.ui.util
 
 import android.content.Context
 import android.content.res.Configuration
-import android.content.res.Resources
 import android.graphics.Color
-import android.graphics.drawable.Drawable
 import android.graphics.drawable.GradientDrawable
 import android.widget.ImageView
 import androidx.annotation.AttrRes

app/src/main/java/org/frknkrc44/hma_oss/ui/activity/MainActivity.kt

@@ -1,6 +1,5 @@
 package org.frknkrc44.hma_oss.ui.activity
 
-import android.content.res.Resources
 import android.os.Bundle
 import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity

app/src/main/java/org/frknkrc44/hma_oss/ui/fragment/HomeFragment.kt

@@ -3,23 +3,25 @@ package org.frknkrc44.hma_oss.ui.fragment
 import android.annotation.SuppressLint
 import android.content.Intent
 import android.os.Bundle
-import androidx.fragment.app.Fragment
-import android.view.LayoutInflater
 import android.view.View
-import android.view.ViewGroup
-import androidx.appcompat.widget.Toolbar
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.fragment.app.Fragment
 import by.kirich1409.viewbindingdelegate.viewBinding
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import icu.nullptr.hidemyapplist.hmaApp
+import icu.nullptr.hidemyapplist.service.ConfigManager
 import icu.nullptr.hidemyapplist.service.ServiceClient
 import icu.nullptr.hidemyapplist.ui.activity.AboutActivity
 import icu.nullptr.hidemyapplist.ui.util.ThemeUtils.getColor
 import icu.nullptr.hidemyapplist.ui.util.ThemeUtils.setCircleBackground
 import icu.nullptr.hidemyapplist.ui.util.ThemeUtils.themeColor
+import icu.nullptr.hidemyapplist.ui.util.makeToast
 import icu.nullptr.hidemyapplist.ui.util.setupToolbar
 import org.frknkrc44.hma_oss.BuildConfig
 import org.frknkrc44.hma_oss.R
 import org.frknkrc44.hma_oss.databinding.FragmentHomeBinding
+import java.io.IOException
+import java.util.Calendar
 
 /**
  * A simple [Fragment] subclass.
@@ -29,6 +31,46 @@ import org.frknkrc44.hma_oss.databinding.FragmentHomeBinding
 class HomeFragment : Fragment(R.layout.fragment_home) {
     private val binding by viewBinding<FragmentHomeBinding>()
 
+    private val backupSAFLauncher =
+        registerForActivityResult(ActivityResultContracts.CreateDocument("application/json")) backup@{ uri ->
+            if (uri == null) return@backup
+            ConfigManager.configFile.inputStream().use { input ->
+                hmaApp.contentResolver.openOutputStream(uri).use { output ->
+                    if (output == null) makeToast(R.string.home_export_failed)
+                    else input.copyTo(output)
+                }
+            }
+            makeToast(R.string.home_exported)
+        }
+
+    private val restoreSAFLauncher =
+        registerForActivityResult(ActivityResultContracts.GetContent()) restore@{ uri ->
+            if (uri == null) return@restore
+            runCatching {
+                val backup = hmaApp.contentResolver
+                    .openInputStream(uri)?.reader().use { it?.readText() }
+                    ?: throw IOException(getString(R.string.home_import_file_damaged))
+                ConfigManager.importConfig(backup)
+                makeToast(R.string.home_import_successful)
+            }.onFailure {
+                it.printStackTrace()
+                MaterialAlertDialogBuilder(requireContext())
+                    .setCancelable(false)
+                    .setTitle(R.string.home_import_failed)
+                    .setMessage(it.message)
+                    .setPositiveButton(android.R.string.ok, null)
+                    .setNegativeButton(R.string.show_crash_log) { _, _ ->
+                        MaterialAlertDialogBuilder(requireActivity())
+                            .setCancelable(false)
+                            .setTitle(R.string.home_import_failed)
+                            .setMessage(it.stackTraceToString())
+                            .setPositiveButton(android.R.string.ok, null)
+                            .show()
+                    }
+                    .show()
+            }
+        }
+
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         setupToolbar(
             toolbar = binding.toolbar,
@@ -108,6 +150,14 @@ class HomeFragment : Fragment(R.layout.fragment_home) {
             itemIcon.setImageResource(R.drawable.ic_outline_layers_24)
             itemIcon.setCircleBackground(getColor(R.color.invalid))
         }
+
+        binding.backupConfig.setOnClickListener {
+            backupSAFLauncher.launch("HMA_Config_${Calendar.getInstance().timeInMillis}.json")
+        }
+
+        binding.restoreConfig.setOnClickListener {
+            restoreSAFLauncher.launch("application/json")
+        }
     }
 
     companion object {

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

@@ -56,6 +56,7 @@
                 android:layout_height="wrap_content">
 
                 <com.google.android.material.button.MaterialButton
+                    android:id="@+id/backup_config"
                     app:icon="@drawable/outline_backup_24"
                     android:text="@string/home_backup_config"
                     android:layout_marginRight="8dp"
@@ -64,6 +65,7 @@
                     android:layout_weight="1" />
 
                 <com.google.android.material.button.MaterialButton
+                    android:id="@+id/restore_config"
                     app:icon="@drawable/outline_settings_backup_restore_24"
                     android:text="@string/home_restore_config"
                     android:layout_marginLeft="8dp"

app/src/main/res/navigation/main_nav_graph.xml

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <navigation xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/main_nav_graph"
     app:startDestination="@id/home_nav_graph">
     <include app:graph="@navigation/home_nav_graph" />