Copy event logging settings

app/src/main/java/se/ajpanton/notificationlog/SettingsFragment.kt

@@ -9,6 +9,9 @@ import se.ajpanton.notificationlog.databinding.FragmentSettingsBinding
 import se.ajpanton.notificationlog.settings.LogField
 import se.ajpanton.notificationlog.settings.LogViewSettingsStore
 import se.ajpanton.notificationlog.settings.TimestampZone
+import se.ajpanton.notificationlog.settings.LoggingType
+import se.ajpanton.notificationlog.settings.LoggingRuleStore
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
 
 class SettingsFragment : Fragment(R.layout.fragment_settings) {
     private var binding: FragmentSettingsBinding? = null
@@ -42,6 +45,29 @@ class SettingsFragment : Fragment(R.layout.fragment_settings) {
                 settings = settings.copy(timestampZone = TimestampZone.entries[position]); store.save(settings)
             }
         }
+        binding!!.copyEventSettings.setOnClickListener { chooseCopySource() }
     }
     override fun onDestroyView() { binding = null; super.onDestroyView() }
+
+    private fun chooseCopySource() {
+        val types = LoggingType.entries
+        MaterialAlertDialogBuilder(requireContext())
+            .setTitle("Copy settings from")
+            .setItems(types.map { it.label() }.toTypedArray()) { _, index -> chooseCopyTargets(types[index]) }
+            .show()
+    }
+
+    private fun chooseCopyTargets(source: LoggingType) {
+        val targets = LoggingType.entries.filterNot { it == source }
+        val checked = BooleanArray(targets.size)
+        MaterialAlertDialogBuilder(requireContext())
+            .setTitle("Copy ${source.label()} settings to")
+            .setMultiChoiceItems(targets.map { it.label() }.toTypedArray(), checked) { _, index, selected -> checked[index] = selected }
+            .setNegativeButton("Cancel", null)
+            .setPositiveButton("Copy") { _, _ ->
+                LoggingRuleStore(requireContext()).copy(source, targets.filterIndexed { index, _ -> checked[index] }.toSet())
+            }.show()
+    }
+
+    private fun LoggingType.label() = name.lowercase().replace('_', ' ').replaceFirstChar(Char::uppercase)
 }