refactor: streamline address validation in EuiccConfiguredAddresses by consolidating checks into a single function

libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/EuiccConfiguredAddresses.kt

@@ -2,30 +2,20 @@ package net.typeblog.lpac_jni
 
 import android.util.Patterns
 
-// example address in GSMA SGP.26, some chips use addresses like this
-@Suppress("SpellCheckingInspection")
-private val invalidDPAddresses = setOf(
-    "testrootsmds.gsma.com",
-    "testrootsmds.example.com",
-)
-
 data class EuiccConfiguredAddresses(
     val defaultDPAddress: String,
     val rootDSAddress: String
 ) {
-    val discoverable: Boolean
-        get() = isValidDefaultDPAddress || isValidRootDSAddress
-
     val isValidDefaultDPAddress: Boolean
-        get() {
+        get() = isValid(defaultDPAddress)
-            if (defaultDPAddress.isBlank()) return false
-            return Patterns.DOMAIN_NAME.matcher(defaultDPAddress).matches()
-        }
 
     val isValidRootDSAddress: Boolean
-        get() {
+        get() = isValid(rootDSAddress) || rootDSAddress == "lpa.ds.gsma.com"
-            if (rootDSAddress.isBlank()) return false
+}
-            if (rootDSAddress in invalidDPAddresses) return false
+
-            return Patterns.DOMAIN_NAME.matcher(rootDSAddress).matches()
+private fun isValid(address: String): Boolean {
-        }
+    if (address.isBlank()) return false
+    if (address.endsWith(".gsma.com")) return false
+    if (address.endsWith(".example.com")) return false
+    return Patterns.DOMAIN_NAME.matcher(address).matches()
 }