/*
 * Copyright (C) 2006 The Android Open Source Project
 * Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
 * Not a Contribution.
 *
 * 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.android.internal.telephony;

import android.os.RemoteException;
import android.os.ServiceManager;
import android.telephony.SubscriptionManager;
import android.telephony.Rlog;
import android.telephony.TelephonyManager;

import java.lang.NullPointerException;
import java.lang.ArrayIndexOutOfBoundsException;

import com.android.internal.telephony.IPhoneSubInfo;
import com.android.internal.telephony.Phone;
import com.android.internal.telephony.PhoneSubInfoProxy;

public class PhoneSubInfoController extends IPhoneSubInfo.Stub {
    private static final String TAG = "PhoneSubInfoController";
    private Phone[] mPhone;

    public PhoneSubInfoController(Phone[] phone) {
        mPhone = phone;
        if (ServiceManager.getService("iphonesubinfo") == null) {
            ServiceManager.addService("iphonesubinfo", this);
        }
    }


    public String getDeviceId() {
        return getDeviceIdForPhone(SubscriptionManager.getPhoneId(getDefaultSubscription()));
    }

    public String getDeviceIdForPhone(int phoneId) {
        Phone phone = getPhone(phoneId);
        if (phone != null) {
            phone.getContext().enforceCallingOrSelfPermission(
                    android.Manifest.permission.READ_PHONE_STATE,
                    "Requires READ_PHONE_STATE");
            return phone.getDeviceId();
        } else {
            Rlog.e(TAG,"getDeviceIdForPhone phone " + phoneId + " is null");
            return null;
        }
    }

    public String getNaiForSubscriber(int subId) {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(subId);
        if (phoneSubInfoProxy != null) {
            return phoneSubInfoProxy.getNai();
        } else {
            Rlog.e(TAG,"getNai phoneSubInfoProxy is null" +
                      " for Subscription:" + subId);
            return null;
        }
    }

    public String getImeiForSubscriber(int subId) {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(subId);
        if (phoneSubInfoProxy != null) {
            return phoneSubInfoProxy.getImei();
        } else {
            Rlog.e(TAG,"getDeviceId phoneSubInfoProxy is null" +
                    " for Subscription:" + subId);
            return null;
        }
    }

    public String getDeviceSvn() {
        return getDeviceSvnUsingSubId(getDefaultSubscription());
    }

    public String getDeviceSvnUsingSubId(int subId) {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(subId);
        if (phoneSubInfoProxy != null) {
            return phoneSubInfoProxy.getDeviceSvn();
        } else {
            Rlog.e(TAG,"getDeviceSvn phoneSubInfoProxy is null");
            return null;
        }
    }

    public String getSubscriberId() {
        return getSubscriberIdForSubscriber(getDefaultSubscription());
    }

    public String getSubscriberIdForSubscriber(int subId) {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(subId);
        if (phoneSubInfoProxy != null) {
            return phoneSubInfoProxy.getSubscriberId();
        } else {
            Rlog.e(TAG,"getSubscriberId phoneSubInfoProxy is" +
                      " null for Subscription:" + subId);
            return null;
        }
    }

    /**
     * Retrieves the serial number of the ICC, if applicable.
     */
    public String getIccSerialNumber() {
        return getIccSerialNumberForSubscriber(getDefaultSubscription());
    }

    public String getIccSerialNumberForSubscriber(int subId) {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(subId);
        if (phoneSubInfoProxy != null) {
            return phoneSubInfoProxy.getIccSerialNumber();
        } else {
            Rlog.e(TAG,"getIccSerialNumber phoneSubInfoProxy is" +
                      " null for Subscription:" + subId);
            return null;
        }
    }

    public String getLine1Number() {
        return getLine1NumberForSubscriber(getDefaultSubscription());
    }

    public String getLine1NumberForSubscriber(int subId) {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(subId);
        if (phoneSubInfoProxy != null) {
            return phoneSubInfoProxy.getLine1Number();
        } else {
            Rlog.e(TAG,"getLine1Number phoneSubInfoProxy is" +
                      " null for Subscription:" + subId);
            return null;
        }
    }

    public String getLine1AlphaTag() {
        return getLine1AlphaTagForSubscriber(getDefaultSubscription());
    }

    public String getLine1AlphaTagForSubscriber(int subId) {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(subId);
        if (phoneSubInfoProxy != null) {
            return phoneSubInfoProxy.getLine1AlphaTag();
        } else {
            Rlog.e(TAG,"getLine1AlphaTag phoneSubInfoProxy is" +
                      " null for Subscription:" + subId);
            return null;
        }
    }

    public String getMsisdn() {
        return getMsisdnForSubscriber(getDefaultSubscription());
    }

    public String getMsisdnForSubscriber(int subId) {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(subId);
        if (phoneSubInfoProxy != null) {
            return phoneSubInfoProxy.getMsisdn();
        } else {
            Rlog.e(TAG,"getMsisdn phoneSubInfoProxy is" +
                      " null for Subscription:" + subId);
            return null;
        }
    }

    public String getVoiceMailNumber() {
        return getVoiceMailNumberForSubscriber(getDefaultSubscription());
    }

    public String getVoiceMailNumberForSubscriber(int subId) {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(subId);
        if (phoneSubInfoProxy != null) {
            return phoneSubInfoProxy.getVoiceMailNumber();
        } else {
            Rlog.e(TAG,"getVoiceMailNumber phoneSubInfoProxy is" +
                      " null for Subscription:" + subId);
            return null;
        }
    }

    public String getCompleteVoiceMailNumber() {
        return getCompleteVoiceMailNumberForSubscriber(getDefaultSubscription());
    }

    public String getCompleteVoiceMailNumberForSubscriber(int subId) {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(subId);
        if (phoneSubInfoProxy != null) {
            return phoneSubInfoProxy.getCompleteVoiceMailNumber();
        } else {
            Rlog.e(TAG,"getCompleteVoiceMailNumber phoneSubInfoProxy" +
                      " is null for Subscription:" + subId);
            return null;
        }
    }

    public String getVoiceMailAlphaTag() {
        return getVoiceMailAlphaTagForSubscriber(getDefaultSubscription());
    }

    public String getVoiceMailAlphaTagForSubscriber(int subId) {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(subId);
        if (phoneSubInfoProxy != null) {
            return phoneSubInfoProxy.getVoiceMailAlphaTag();
        } else {
            Rlog.e(TAG,"getVoiceMailAlphaTag phoneSubInfoProxy is" +
                      " null for Subscription:" + subId);
            return null;
        }
    }

    /**
     * get Phone sub info proxy object based on subId.
     **/
    private PhoneSubInfoProxy getPhoneSubInfoProxy(int subId) {

        int phoneId = SubscriptionManager.getPhoneId(subId);

        try {
            return getPhone(phoneId).getPhoneSubInfoProxy();
        } catch (NullPointerException e) {
            Rlog.e(TAG, "Exception is :" + e.toString() + " For subId :" + subId);
            e.printStackTrace();
            return null;
        }
    }

    private PhoneProxy getPhone(int phoneId) {
        if (phoneId < 0 || phoneId >= TelephonyManager.getDefault().getPhoneCount()) {
            phoneId = 0;
        }
        return (PhoneProxy) mPhone[phoneId];
    }

    private int getDefaultSubscription() {
        return  PhoneFactory.getDefaultSubscription();
    }


    public String getIsimImpi() {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(getDefaultSubscription());
        return phoneSubInfoProxy.getIsimImpi();
    }

    public String getIsimDomain() {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(getDefaultSubscription());
        return phoneSubInfoProxy.getIsimDomain();
    }

    public String[] getIsimImpu() {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(getDefaultSubscription());
        return phoneSubInfoProxy.getIsimImpu();
    }

    public String getIsimIst() throws RemoteException {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(getDefaultSubscription());
        return phoneSubInfoProxy.getIsimIst();
    }

    public String[] getIsimPcscf() throws RemoteException {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(getDefaultSubscription());
        return phoneSubInfoProxy.getIsimPcscf();
    }

    public String getIsimChallengeResponse(String nonce) throws RemoteException {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(getDefaultSubscription());
        return phoneSubInfoProxy.getIsimChallengeResponse(nonce);
    }

    public String getIccSimChallengeResponse(int subId, int appType, String data)
            throws RemoteException {
        PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(subId);
        return phoneSubInfoProxy.getIccSimChallengeResponse(subId, appType, data);
    }

     public String getGroupIdLevel1() {
         return getGroupIdLevel1ForSubscriber(getDefaultSubscription());
     }

     public String getGroupIdLevel1ForSubscriber(int subId) {
         PhoneSubInfoProxy phoneSubInfoProxy = getPhoneSubInfoProxy(subId);
         if (phoneSubInfoProxy != null) {
             return phoneSubInfoProxy.getGroupIdLevel1();
         } else {
             Rlog.e(TAG,"getGroupIdLevel1 phoneSubInfoProxy is" +
                       " null for Subscription:" + subId);
             return null;
         }
     }
}