Add utility methods used by the call stats code

Change-Id: If000c0638af8b50654f2a3637e9a780759710502

1 files changed, 41 insertions, 0 deletions

diff --git a/src/com/android/contacts/common/CallUtil.java b/src/com/android/contacts/common/CallUtil.java
index 91f59938..9f3084da 100644
--- a/src/com/android/contacts/common/CallUtil.java
+++ b/src/com/android/contacts/common/CallUtil.java
@@ -24,6 +24,7 @@ import android.telecom.PhoneAccount;
 import android.telecom.PhoneAccountHandle;
 import android.telecom.TelecomManager;
 import android.telecom.VideoProfile;
+import android.telephony.PhoneNumberUtils;
 
 import com.android.contacts.common.util.PhoneNumberHelper;
 import com.android.phone.common.PhoneConstants;
@@ -160,6 +161,46 @@ public class CallUtil {
 
     /**
      * Return Uri with an appropriate scheme, accepting both SIP and usual phone call
+     * Checks whether two phone numbers resolve to the same phone.
+     */
+    public static boolean phoneNumbersEqual(String number1, String number2) {
+        if (PhoneNumberUtils.isUriNumber(number1) || PhoneNumberUtils.isUriNumber(number2)) {
+            return sipAddressesEqual(number1, number2);
+        } else {
+            return PhoneNumberUtils.compare(number1, number2);
+        }
+    }
+
+    private static boolean sipAddressesEqual(String number1, String number2) {
+        if (number1 == null || number2 == null) return number1 == number2;
+
+        int index1 = number1.indexOf('@');
+        final String userinfo1;
+        final String rest1;
+        if (index1 != -1) {
+            userinfo1 = number1.substring(0, index1);
+            rest1 = number1.substring(index1);
+        } else {
+            userinfo1 = number1;
+            rest1 = "";
+        }
+
+        int index2 = number2.indexOf('@');
+        final String userinfo2;
+        final String rest2;
+        if (index2 != -1) {
+            userinfo2 = number2.substring(0, index2);
+            rest2 = number2.substring(index2);
+        } else {
+            userinfo2 = number2;
+            rest2 = "";
+        }
+
+        return userinfo1.equals(userinfo2) && rest1.equalsIgnoreCase(rest2);
+    }
+
+    /**
+     * Return Uri with an appropriate scheme, accepting Voicemail, SIP, and usual phone call
      * numbers.
      */
     public static Uri getCallUri(String number) {