/*
 * Copyright (C) 2017 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 android.service.euicc;

import android.annotation.Nullable;
import android.annotation.SystemApi;
import android.os.Parcel;
import android.os.Parcelable;

import java.util.Arrays;
import java.util.List;

/**
 * Result of a {@link EuiccService#onGetEuiccProfileInfoList} operation.
 * @hide
 */
@SystemApi
public final class GetEuiccProfileInfoListResult implements Parcelable {

    public static final @android.annotation.NonNull Creator<GetEuiccProfileInfoListResult> CREATOR =
            new Creator<GetEuiccProfileInfoListResult>() {
                @Override
                public GetEuiccProfileInfoListResult createFromParcel(Parcel in) {
                    return new GetEuiccProfileInfoListResult(in);
                }

                @Override
                public GetEuiccProfileInfoListResult[] newArray(int size) {
                    return new GetEuiccProfileInfoListResult[size];
                }
            };

    /**
     * @hide
     * @deprecated - Do no use. Use getResult() instead.
     */
    @Deprecated
    public final int result;

    @Nullable
    private final EuiccProfileInfo[] mProfiles;

    private final boolean mIsRemovable;

    /**
     * Gets the result of the operation.
     *
     * <p>May be one of the predefined {@code RESULT_} constants in EuiccService or any
     * implementation-specific code starting with {@link EuiccService#RESULT_FIRST_USER}.
     */
    public int getResult() {
        return result;
    }

    /** Gets the profile list (only upon success). */
    @Nullable
    public List<EuiccProfileInfo> getProfiles() {
        if (mProfiles == null) return null;
        return Arrays.asList(mProfiles);
    }

    /** Gets whether the eUICC is removable. */
    public boolean getIsRemovable() {
        return mIsRemovable;
    }

    /**
     * Construct a new {@link GetEuiccProfileInfoListResult}.
     *
     * @param result Result of the operation. May be one of the predefined {@code RESULT_} constants
     *     in EuiccService or any implementation-specific code starting with
     *     {@link EuiccService#RESULT_FIRST_USER}.
     * @param profiles the list of profiles. Should only be provided if the result is
     *     {@link EuiccService#RESULT_OK}.
     * @param isRemovable whether the eUICC in this slot is removable. If true, the profiles
     *     returned here will only be considered accessible as long as this eUICC is present.
     *     Otherwise, they will remain accessible until the next time a response with isRemovable
     *     set to false is returned.
     */
    public GetEuiccProfileInfoListResult(
            int result, @Nullable EuiccProfileInfo[] profiles, boolean isRemovable) {
        this.result = result;
        this.mIsRemovable = isRemovable;
        if (this.result == EuiccService.RESULT_OK) {
            this.mProfiles = profiles;
        } else {
            // For error case, profiles is either null or 0 size.
            if (profiles != null && profiles.length > 0) {
                throw new IllegalArgumentException(
                        "Error result with non-empty profiles: " + result);
            }
            this.mProfiles = null;
        }
    }

    private GetEuiccProfileInfoListResult(Parcel in) {
        this.result = in.readInt();
        this.mProfiles = in.createTypedArray(EuiccProfileInfo.CREATOR);
        this.mIsRemovable = in.readBoolean();
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeInt(result);
        dest.writeTypedArray(mProfiles, flags);
        dest.writeBoolean(mIsRemovable);
    }

    @Override
    public int describeContents() {
        return 0;
    }

    /**
     * @hide
     *
     * @return String representation of {@link GetEuiccProfileInfoListResult}
     */
    @Override
    public String toString() {
        return "[GetEuiccProfileInfoListResult: result=" + EuiccService.resultToString(result)
                + ", isRemovable=" + mIsRemovable + ", mProfiles=" + Arrays.toString(mProfiles)
                + "]";
    }
}