/*
 * Copyright (C) 2009 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.android.phone;

import android.app.Activity;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.os.SystemProperties;
import android.util.Log;

import com.android.internal.telephony.Phone;
import com.android.internal.telephony.TelephonyCapabilities;

/**
 * Invisible activity that handles the com.android.phone.PERFORM_CDMA_PROVISIONING intent.
 * This activity is protected by the android.permission.PERFORM_CDMA_PROVISIONING permission.
 *
 * We handle the PERFORM_CDMA_PROVISIONING action by launching an OTASP
 * call via one of the OtaUtils helper methods: startInteractiveOtasp() on
 * regular phones, or startNonInteractiveOtasp() on data-only devices.
 *
 * TODO: The class name InCallScreenShowActivation is misleading, since
 * this activity is totally unrelated to the InCallScreen (which
 * implements the in-call UI.)  Let's eventually rename this to something
 * like CdmaProvisioningLauncher or CdmaProvisioningHandler...
 */
public class InCallScreenShowActivation extends Activity {
    private static final String LOG_TAG = "InCallScreenShowActivation";
    private static final boolean DBG =
            (PhoneApp.DBG_LEVEL >= 1) && (SystemProperties.getInt("ro.debuggable", 0) == 1);

    @Override
    protected void onCreate(Bundle icicle) {
        super.onCreate(icicle);

        Intent intent = getIntent();
        if (DBG) Log.d(LOG_TAG, "onCreate: intent = " + intent);
        Bundle extras = intent.getExtras();
        if (DBG && (extras != null)) {
            Log.d(LOG_TAG, "      - has extras: size = " + extras.size()); // forces an unparcel()
            Log.d(LOG_TAG, "      - extras = " + extras);
        }

        PhoneApp app = PhoneApp.getInstance();
        Phone phone = app.getPhone();
        if (!TelephonyCapabilities.supportsOtasp(phone)) {
            Log.w(LOG_TAG, "CDMA Provisioning not supported on this device");
            setResult(RESULT_CANCELED);
            finish();
            return;
        }

        if (intent.getAction().equals(OtaUtils.ACTION_PERFORM_CDMA_PROVISIONING)) {

            // On voice-capable devices, we perform CDMA provisioning in
            // "interactive" mode by directly launching the InCallScreen.
            boolean interactiveMode = PhoneApp.sVoiceCapable;
            Log.d(LOG_TAG, "ACTION_PERFORM_CDMA_PROVISIONING (interactiveMode = "
                  + interactiveMode + ")...");

            // Testing: this intent extra allows test apps manually
            // enable/disable "interactive mode", regardless of whether
            // the current device is voice-capable.  This is allowed only
            // in userdebug or eng builds.
            if (intent.hasExtra(OtaUtils.EXTRA_OVERRIDE_INTERACTIVE_MODE)
                    && (SystemProperties.getInt("ro.debuggable", 0) == 1)) {
                interactiveMode =
                        intent.getBooleanExtra(OtaUtils.EXTRA_OVERRIDE_INTERACTIVE_MODE, false);
                Log.d(LOG_TAG, "===> MANUALLY OVERRIDING interactiveMode to " + interactiveMode);
            }

            // We allow the caller to pass a PendingIntent (as the
            // EXTRA_NONINTERACTIVE_OTASP_RESULT_PENDING_INTENT extra)
            // which we'll later use to notify them when the OTASP call
            // fails or succeeds.
            //
            // Stash that away here, and we'll fire it off later in
            // OtaUtils.sendOtaspResult().
            app.cdmaOtaScreenState.otaspResultCodePendingIntent =
                        (PendingIntent) intent.getParcelableExtra(
                                OtaUtils.EXTRA_OTASP_RESULT_CODE_PENDING_INTENT);

            if (interactiveMode) {
                // On voice-capable devices, launch an OTASP call and arrange
                // for the in-call UI to come up.  (The InCallScreen will
                // notice that an OTASP call is active, and display the
                // special OTASP UI instead of the usual in-call controls.)

                if (DBG) Log.d(LOG_TAG, "==> Starting interactive CDMA provisioning...");
                OtaUtils.startInteractiveOtasp(this);

                // The result we set here is actually irrelevant, since the
                // InCallScreen's "interactive" OTASP sequence never actually
                // finish()es; it ends by directly launching the Home
                // activity.  So our caller won't actually ever get an
                // onActivityResult() call in this case.
                setResult(OtaUtils.RESULT_INTERACTIVE_OTASP_STARTED);
            } else {
                // On data-only devices, manually launch the OTASP call
                // *without* displaying any UI.  (Our caller, presumably
                // SetupWizardActivity, is responsible for displaying some
                // sort of progress UI.)

                if (DBG) Log.d(LOG_TAG, "==> Starting non-interactive CDMA provisioning...");
                int callStatus = OtaUtils.startNonInteractiveOtasp(this);

                if (callStatus == PhoneUtils.CALL_STATUS_DIALED) {
                    if (DBG) Log.d(LOG_TAG, "  ==> successful result from startNonInteractiveOtasp(): "
                          + callStatus);
                    setResult(OtaUtils.RESULT_NONINTERACTIVE_OTASP_STARTED);
                } else {
                    Log.w(LOG_TAG, "Failure code from startNonInteractiveOtasp(): " + callStatus);
                    setResult(OtaUtils.RESULT_NONINTERACTIVE_OTASP_FAILED);
                }
            }
        } else {
            Log.e(LOG_TAG, "Unexpected intent action: " + intent);
            setResult(RESULT_CANCELED);
        }

        finish();
    }
}