content: /*
   * Copyright (C) 2018 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 androidx.test.core.content.pm;
  
  import static androidx.test.internal.util.Checks.checkNotNull;
  import static androidx.test.internal.util.Checks.checkState;
  
  import android.annotation.TargetApi;
  import android.content.pm.ApplicationInfo;
  import android.content.pm.PackageInfo;
  import android.os.Build;
  import androidx.annotation.Nullable;
  import java.util.HashMap;
  import java.util.Map;
  
  /** Builder for {@link PackageInfo}. */
  public final class PackageInfoBuilder {
    @Nullable private String packageName;
    @Nullable private ApplicationInfo applicationInfo;
    private long longVersionCode = 0L;
    @Nullable private String versionName;
    /** Map of a requested permission to its requested permission flag. */
    private final Map<String, Integer> requestedPermissionsMap = new HashMap<>();
  
    private PackageInfoBuilder() {}
  
    /**
     * Start building a new {@link PackageInfo}.
     *
     * @return a new instance of {@link PackageInfoBuilder}.
     */
    public static PackageInfoBuilder newBuilder() {
      return new PackageInfoBuilder();
    }
  
    /**
     * Sets the package name.
     *
     * <p>Default is {@code null}.
     *
     * @see PackageInfo#packageName
     */
    public PackageInfoBuilder setPackageName(String packageName) {
      this.packageName = packageName;
      return this;
    }
  
    /**
     * Sets the version code.
     *
     * <p>On SDK P+, this value will be returned for both {@link PackageInfo#getLongVersionCode()} and
     * {@link PackageInfo#versionCode}. Note that the value of {@link PackageInfo#versionCode} will be
     * truncated if a value larger than Integer.MAX_VALUE is provided.
     *
     * <p>Default is 0L.
     *
     * @see PackageInfo#setLongVersionCode(long)
     * @see PackageInfo#versionCode
     */
    @TargetApi(Build.VERSION_CODES.P)
    public PackageInfoBuilder setVersionCode(long longVersionCode) {
      this.longVersionCode = longVersionCode;
      return this;
    }
  
    /**
     * Sets the version name.
     *
     * <p>Default is {@code null}.
     *
     * @see PackageInfo#versionName
     */
    public PackageInfoBuilder setVersionName(String versionName) {
      this.versionName = versionName;
      return this;
    }
  
    /**
     * Adds a requested permission and its flag for the app.
     *
     * <p>This can be called several times to add multiple permissions.
     *
     * @see PackageInfo#requestedPermissions
     * @see PackageInfo#requestedPermissionsFlags
     */
    public PackageInfoBuilder addRequestedPermission(
        String requestedPermission, int requestedPermissionFlag) {
      requestedPermissionsMap.put(requestedPermission, requestedPermissionFlag);
      return this;
    }
  
    /**
     * Sets the application info.
     *
     * <p>Default is {@code null}
     *
     * @see PackageInfo#applicationInfo
     */
    public PackageInfoBuilder setApplicationInfo(ApplicationInfo applicationInfo) {
      this.applicationInfo = applicationInfo;
      return this;
    }
  
    /** Returns a {@link PackageInfo} with the provided data. */
    public PackageInfo build() {
      // Check mandatory fields and correctness.
      checkNotNull(packageName, "Mandatory field 'packageName' missing.");
  
      PackageInfo packageInfo = new PackageInfo();
      packageInfo.packageName = packageName;
      packageInfo.versionName = versionName;
  
      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
        // setLongVersionCode will automatically set the version code.
        packageInfo.setLongVersionCode(longVersionCode);
      } else {
        packageInfo.versionCode = (int) longVersionCode;
      }
  
      if (applicationInfo == null) {
        applicationInfo = ApplicationInfoBuilder.newBuilder().setPackageName(packageName).build();
      }
      packageInfo.applicationInfo = applicationInfo;
      packageInfo.requestedPermissions = requestedPermissionsMap.keySet().toArray(new String[0]);
  
      Integer[] requestedPermissionsFlags = requestedPermissionsMap.values().toArray(new Integer[0]);
      // Stream APIs such as `mapToInt` are not supported below API 24.
      int[] requestedPermissionsFlagsIntArray = new int[requestedPermissionsFlags.length];
      for (int i = 0; i < requestedPermissionsFlags.length; i++) {
        requestedPermissionsFlagsIntArray[i] = requestedPermissionsFlags[i];
      }
      packageInfo.requestedPermissionsFlags = requestedPermissionsFlagsIntArray;
  
      checkState(
          packageInfo.packageName.equals(packageInfo.applicationInfo.packageName),
          "Field 'packageName' must match field 'applicationInfo.packageName'");
  
      return packageInfo;
    }
  }
  