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package org.mozc.android.inputmethod.japanese;

import com.google.common.base.Preconditions;

import android.content.res.Configuration;

/**
 * Name of keyboard (or keyboard-like-view).
 *
 * The formatted name is sent to the usage stats server.
 *
 */
public class KeyboardSpecificationName {

  public final String baseName;
  public final int major;
  public final int minor;
  public final int revision;
  public KeyboardSpecificationName(String baseName, int major, int minor, int revision) {
    this.baseName = Preconditions.checkNotNull(baseName);
    this.major = major;
    this.minor = minor;
    this.revision = revision;
  }

  /**
   * Get formatted keyboard name based on given parameters.
   *
   * The main purpose of the formatted name is collecting usage stats.
   */
  public String formattedKeyboardName(Configuration configuration) {
    Preconditions.checkNotNull(configuration);
    return new StringBuilder(baseName).append('-')
                                      .append(major)
                                      .append('.')
                                      .append(minor)
                                      .append('.')
                                      .append(revision)
                                      .append('-')
                                      .append(getDeviceOrientationString(configuration))
                                      .toString();
  }

  /**
   * Returns *Canonical* orientation string, which is used as a part of keyboard name.
   */
  @SuppressWarnings("deprecation")
  public static String getDeviceOrientationString(Configuration configuration) {
    Preconditions.checkNotNull(configuration);
    switch (configuration.orientation) {
      case Configuration.ORIENTATION_PORTRAIT:
        return "PORTRAIT";
      case Configuration.ORIENTATION_LANDSCAPE:
        return "LANDSCAPE";
      case Configuration.ORIENTATION_SQUARE:
        return "SQUARE";
      case Configuration.ORIENTATION_UNDEFINED:
        return "UNDEFINED";
    }
    // If none of above is matched to the orientation, we return "UNKNOWN".
    return "UNKNOWN";
  }
}
