[Payments] Dedupe subsets in contact detail suggestions.

chrome/android/java/src/org/chromium/chrome/browser/payments/AutofillContact.java

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/AutofillContact.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/payments/AutofillContact.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/AutofillContact.java
index 667d2585e1162d0a0dc9f0b6c70fd61904141227..8a913994ce9b717b89c29abf2df7a0fdf74a8ff3 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/payments/AutofillContact.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/AutofillContact.java
@@ -19,6 +19,10 @@ import javax.annotation.Nullable;
 public class AutofillContact extends PaymentOption {
     private final AutofillProfile mProfile;
     private final Context mContext;
+    private int mCompletionStatus;
+    private boolean mRequestName;
+    private boolean mRequestPhone;
+    private boolean mRequestEmail;
     @Nullable private String mPayerName;
     @Nullable private String mPayerPhone;
     @Nullable private String mPayerEmail;
@@ -33,13 +37,20 @@ public class AutofillContact extends PaymentOption {
      * @param email            The email address. If name and phone are empty, this will be the
      *                         primary label.
      * @param completionStatus The completion status of this contact.
+     * @param requestName      Whether the merchant requests a payer name.
+     * @param requestPhone     Whether the merchant requests a payer phone number.
+     * @param requestEmail     Whether the merchant requests a payer email address.
      */
     public AutofillContact(Context context, AutofillProfile profile, @Nullable String name,
             @Nullable String phone, @Nullable String email,
-            @ContactEditor.CompletionStatus int completionStatus) {
+            @ContactEditor.CompletionStatus int completionStatus, boolean requestName,
+            boolean requestPhone, boolean requestEmail) {
         super(profile.getGUID(), null, null, null, null);
         mContext = context;
         mProfile = profile;
+        mRequestName = requestName;
+        mRequestPhone = requestPhone;
+        mRequestEmail = requestEmail;
         mIsEditable = true;
         setContactInfo(profile.getGUID(), name, phone, email);
         updateCompletionStatus(completionStatus);
@@ -50,16 +61,17 @@ public class AutofillContact extends PaymentOption {
         return mPayerName;
     }
 
-    /** @return Email address. Null if the merchant did not request it or data is incomplete. */
-    @Nullable public String getPayerEmail() {
-        return mPayerEmail;
-    }
-
     /** @return Phone number. Null if the merchant did not request it or data is incomplete. */
     @Nullable public String getPayerPhone() {
         return mPayerPhone;
     }
 
+    /** @return Email address. Null if the merchant did not request it or data is incomplete. */
+    @Nullable
+    public String getPayerEmail() {
+        return mPayerEmail;
+    }
+
     /** @return The autofill profile where this contact data lives. */
     public AutofillProfile getProfile() {
         return mProfile;
@@ -87,6 +99,60 @@ public class AutofillContact extends PaymentOption {
         updateCompletionStatus(ContactEditor.COMPLETE);
     }
 
+    /**
+     * Returns whether this contact is equal or a superset of the specified contact considering the
+     * information requested by the merchant.
+     *
+     * @param contact The contact to compare to.
+     * @return Whether this contact is equal to or a superset of the other.
+     */
+    public boolean isEqualOrSupersetOf(AutofillContact contact) {
+        assert contact != null;
+
+        // This contact is not equal to or a superset of the other if for a requested field:
+        // 1- This contact's field is null and the other's is not.
+        // 2- The field values are not equal.
+        if (mRequestName) {
+            if (mPayerName == null && contact.mPayerName != null) return false;
+            if (mPayerName != null && contact.mPayerName != null
+                    && !mPayerName.equalsIgnoreCase(contact.mPayerName)) {
+                return false;
+            }
+        }
+
+        if (mRequestPhone) {
+            if (mPayerPhone == null && contact.mPayerPhone != null) return false;
+            if (mPayerPhone != null && contact.mPayerPhone != null
+                    && !TextUtils.equals(mPayerPhone, contact.mPayerPhone)) {
+                return false;
+            }
+        }
+
+        if (mRequestEmail) {
+            if (mPayerEmail == null && contact.mPayerEmail != null) return false;
+            if (mPayerEmail != null && contact.mPayerEmail != null
+                    && !mPayerEmail.equalsIgnoreCase(contact.mPayerEmail)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * @return Returns the relevance score of this contact, based on the validity of the information
+     * requested by the merchant.
+     */
+    public int getRelevanceScore() {
+        int score = 0;
+
+        if (mRequestName && (mCompletionStatus & ContactEditor.INVALID_NAME) == 0) ++score;
+        if (mRequestPhone && (mCompletionStatus & ContactEditor.INVALID_PHONE_NUMBER) == 0) ++score;
+        if (mRequestEmail && (mCompletionStatus & ContactEditor.INVALID_EMAIL) == 0) ++score;
+
+        return score;
+    }
+
     private void setContactInfo(String guid, @Nullable String name,
             @Nullable String phone, @Nullable String email) {
         mPayerName = TextUtils.isEmpty(name) ? null : name;
@@ -104,6 +170,7 @@ public class AutofillContact extends PaymentOption {
     }
 
     private void updateCompletionStatus(int completionStatus) {
+        mCompletionStatus = completionStatus;
         mIsComplete = completionStatus == ContactEditor.COMPLETE;
 
         switch (completionStatus) {
@@ -123,12 +190,11 @@ public class AutofillContact extends PaymentOption {
                 mEditMessage = mContext.getString(R.string.payments_phone_number_required);
                 mEditTitle = mContext.getString(R.string.payments_add_phone_number);
                 break;
-            case ContactEditor.INVALID_MULTIPLE_FIELDS:
+            default:
+                // Multiple invalid fields.
                 mEditMessage = mContext.getString(R.string.payments_more_information_required);
                 mEditTitle = mContext.getString(R.string.payments_add_more_information);
                 break;
-            default:
-                assert false : "Invalid completion status code";
         }
     }
 }