// Copyright (C) 2008 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.gerrit.common.data;

import com.google.gerrit.reviewdb.client.Account;

/** Summary information about an {@link Account}, for simple tabular displays. */
public class AccountInfo {
  protected Account.Id id;
  protected String fullName;
  protected String preferredEmail;

  protected AccountInfo() {
  }

  /**
   * Create an 'Anonymous Coward' account info, when only the id is known.
   * <p>
   * This constructor should only be a last-ditch effort, when the usual account
   * lookup has failed and a stale account id has been discovered in the data
   * store.
   */
  public AccountInfo(final Account.Id id) {
    this.id = id;
  }

  /**
   * Create an account description from a real data store record.
   *
   * @param a the data store record holding the specific account details.
   */
  public AccountInfo(final Account a) {
    id = a.getId();
    fullName = a.getFullName();
    preferredEmail = a.getPreferredEmail();
  }

  /** @return the unique local id of the account */
  public Account.Id getId() {
    return id;
  }

  /** @return the full name of the account holder; null if not supplied */
  public String getFullName() {
    return fullName;
  }

  /** @return the email address of the account holder; null if not supplied */
  public String getPreferredEmail() {
    return preferredEmail;
  }

  public void setPreferredEmail(final String email) {
    preferredEmail = email;
  }

  /**
   * Formats an account name.
   * <p>
   * If the account has a full name, it returns only the full name. Otherwise it
   * returns a longer form that includes the email address.
   */
  public String getName(String anonymousCowardName) {
    if (getFullName() != null) {
      return getFullName();
    }
    if (getPreferredEmail() != null) {
      return getPreferredEmail();
    }
    return getNameEmail(anonymousCowardName);
  }

  /**
   * Formats an account as an name and an email address.
   * <p>
   * Example output:
   * <ul>
   * <li><code>A U. Thor &lt;author@example.com&gt;</code>: full populated</li>
   * <li><code>A U. Thor (12)</code>: missing email address</li>
   * <li><code>Anonymous Coward &lt;author@example.com&gt;</code>: missing name</li>
   * <li><code>Anonymous Coward (12)</code>: missing name and email address</li>
   * </ul>
   */
  public String getNameEmail(String anonymousCowardName) {
    String name = getFullName();
    if (name == null) {
      name = anonymousCowardName;
    }

    final StringBuilder b = new StringBuilder();
    b.append(name);
    if (getPreferredEmail() != null) {
      b.append(" <");
      b.append(getPreferredEmail());
      b.append(">");
    } else if (getId() != null) {
      b.append(" (");
      b.append(getId().get());
      b.append(")");
    }
    return b.toString();
  }
}