outsourcing functions to new classes

app/src/main/java/com/dano/test1/EditButtonHandler.kt

@@ -0,0 +1,61 @@
+package com.dano.test1
+
+import android.widget.Button
+import android.widget.EditText
+import android.widget.Toast
+import kotlinx.coroutines.*
+import com.dano.test1.data.CompletedQuestionnaire
+
+class EditButtonHandler(
+    private val activity: MainActivity,
+    private val editButton: Button,
+    private val editText: EditText,
+    private val languageIDProvider: () -> String,
+    private val questionnaireFiles: Map<Button, String>,
+    private val buttonPoints: MutableMap<String, Int>,
+    private val updateButtonTexts: () -> Unit,
+    private val setButtonsEnabled: (List<Button>) -> Unit
+) {
+
+    fun setup() {
+        editButton.text = LanguageManager.getText(languageIDProvider(), "edit")
+        editButton.setOnClickListener { handleEditButtonClick() }
+    }
+
+    private fun handleEditButtonClick() {
+        val clientCode = editText.text.toString().trim()
+        if (clientCode.isBlank()) {
+            val message = LanguageManager.getText(languageIDProvider(), "please_client_code")
+            Toast.makeText(activity, message, Toast.LENGTH_SHORT).show()
+            return
+        }
+
+        GlobalValues.LAST_CLIENT_CODE = clientCode
+
+        CoroutineScope(Dispatchers.IO).launch {
+            val completedEntries: List<CompletedQuestionnaire> =
+                MyApp.database.completedQuestionnaireDao().getAllForClient(clientCode)
+
+            val completedFiles = completedEntries
+                .filter { it.isDone }
+                .map { it.questionnaireId.lowercase() }
+
+            buttonPoints.clear()
+            for (entry in completedEntries) {
+                if (entry.isDone) {
+                    buttonPoints[entry.questionnaireId] = entry.sumPoints ?: 0
+                }
+            }
+
+            withContext(Dispatchers.Main) {
+                updateButtonTexts()
+
+                val enabledButtons = questionnaireFiles.filter { (_, fileName) ->
+                    completedFiles.any { completedId -> fileName.lowercase().contains(completedId) }
+                }.keys.toList()
+
+                setButtonsEnabled(enabledButtons)
+            }
+        }
+    }
+}