Settings screen, display fixes

app/src/main/java/eu/neilalexander/yggdrasil/SettingsActivity.kt

@@ -1,11 +1,71 @@
 package eu.neilalexander.yggdrasil
 
+import android.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import android.view.ContextThemeWrapper
+import android.view.LayoutInflater
+import android.widget.*
+import androidx.core.view.setPadding
+import androidx.core.widget.doOnTextChanged
+import org.json.JSONObject
 
 class SettingsActivity : AppCompatActivity() {
+    private lateinit var config: ConfigurationProxy
+    private lateinit var inflater: LayoutInflater
+
+    private lateinit var deviceNameEntry: EditText
+    private lateinit var publicKeyLabel: TextView
+    private lateinit var resetConfigurationRow: TableRow
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_settings)
+
+        config = ConfigurationProxy(applicationContext)
+        inflater = LayoutInflater.from(this)
+
+        deviceNameEntry = findViewById(R.id.deviceNameEntry)
+        publicKeyLabel = findViewById(R.id.publicKeyLabel)
+        resetConfigurationRow = findViewById(R.id.resetConfigurationRow)
+
+        deviceNameEntry.doOnTextChanged { text, _, _, _ ->
+            config.updateJSON { cfg ->
+                var nodeinfo = cfg.optJSONObject("NodeInfo")
+                if (nodeinfo == null) {
+                    cfg.put("NodeInfo", JSONObject("{}"))
+                }
+                cfg.getJSONObject("NodeInfo").put("name", text)
+            }
+        }
+
+        resetConfigurationRow.setOnClickListener {
+            var view = inflater.inflate(R.layout.dialog_resetconfig, null)
+            val builder: AlertDialog.Builder = AlertDialog.Builder(ContextThemeWrapper(this, R.style.Theme_MaterialComponents_DayNight_Dialog))
+            builder.setTitle("Warning")
+            builder.setView(view)
+            builder.setPositiveButton("Reset") { dialog, _ ->
+                config.resetJSON()
+                updateView()
+                dialog.dismiss()
+            }
+            builder.setNegativeButton("Cancel") { dialog, _ ->
+                dialog.cancel()
+            }
+            builder.show()
+        }
+
+        updateView()
+    }
+
+    fun updateView() {
+        val nodeinfo = config.getJSON().optJSONObject("NodeInfo")
+        if (nodeinfo != null) {
+            deviceNameEntry.setText(nodeinfo.getString("name"), TextView.BufferType.EDITABLE)
+        } else {
+            deviceNameEntry.setText("", TextView.BufferType.EDITABLE)
+        }
+
+        publicKeyLabel.text = config.getJSON().getString("PublicKey")
     }
 }