/*
 * 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 com.android.settings.biometrics.face;

import android.content.Intent;
import android.hardware.face.FaceManager;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.view.animation.AnimationUtils;
import android.view.animation.Interpolator;
import android.widget.Button;
import android.widget.TextView;

import com.android.internal.logging.nano.MetricsProto;
import com.android.settings.R;
import com.android.settings.Utils;
import com.android.settings.biometrics.BiometricEnrollSidecar;
import com.android.settings.biometrics.BiometricsEnrollEnrolling;
import com.android.settings.biometrics.BiometricErrorDialog;
import com.android.settings.password.ChooseLockSettingsHelper;


public class FaceEnrollEnrolling extends BiometricsEnrollEnrolling {

    private static final String TAG = "FaceEnrollEnrolling";
    private static final boolean DEBUG = true;

    private TextView mErrorText;
    private Interpolator mLinearOutSlowInInterpolator;
    private boolean mShouldFinishOnStop = true;

    public static class FaceErrorDialog extends BiometricErrorDialog {
        static FaceErrorDialog newInstance(CharSequence msg, int msgId) {
            FaceErrorDialog dialog = new FaceErrorDialog();
            Bundle args = new Bundle();
            args.putCharSequence(KEY_ERROR_MSG, msg);
            args.putInt(KEY_ERROR_ID, msgId);
            dialog.setArguments(args);
            return dialog;
        }

        @Override
        public int getMetricsCategory() {
            return MetricsProto.MetricsEvent.DIALOG_FACE_ERROR;
        }

        @Override
        public int getTitleResId() {
            return R.string.security_settings_face_enroll_error_dialog_title;
        }

        @Override
        public int getOkButtonTextResId() {
            return R.string.security_settings_face_enroll_dialog_ok;
        }
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.face_enroll_enrolling);
        setHeaderText(R.string.security_settings_face_enroll_repeat_title);
        mErrorText = findViewById(R.id.error_text);
        mLinearOutSlowInInterpolator = AnimationUtils.loadInterpolator(
                this, android.R.interpolator.linear_out_slow_in);

        Button skipButton = findViewById(R.id.skip_button);
        skipButton.setOnClickListener(this);

        if (shouldLaunchConfirmLock()) {
            launchConfirmLock(R.string.security_settings_face_preference_title,
                    Utils.getFaceManagerOrNull(this).preEnroll());
            mShouldFinishOnStop = false;
        } else {
            startEnrollment();
        }
    }

    @Override
    protected Intent getFinishIntent() {
        return new Intent(this, FaceEnrollFinish.class);
    }

    @Override
    protected BiometricEnrollSidecar getSidecar() {
        return new FaceEnrollSidecar();
    }

    @Override
    protected boolean shouldStartAutomatically() {
        return false;
    }

    @Override
    protected boolean shouldFinishOnStop() {
        return mShouldFinishOnStop;
    }

    @Override
    public int getMetricsCategory() {
        return MetricsProto.MetricsEvent.FACE_ENROLL_ENROLLING;
    }

    @Override
    public void onEnrollmentHelp(CharSequence helpString) {
        if (!TextUtils.isEmpty(helpString)) {
            showError(helpString);
        }
    }

    @Override
    public void onEnrollmentError(int errMsgId, CharSequence errString) {
        int msgId;
        switch (errMsgId) {
            case FaceManager.FACE_ERROR_TIMEOUT:
                msgId = R.string.security_settings_face_enroll_error_timeout_dialog_message;
                break;
            default:
                msgId = R.string.security_settings_face_enroll_error_generic_dialog_message;
                break;
        }
        showErrorDialog(getText(msgId), errMsgId);
    }

    @Override
    public void onEnrollmentProgressChange(int steps, int remaining) {
        if (DEBUG) {
            Log.v(TAG, "Steps: " + steps + " Remaining: " + remaining);
        }
        // TODO: Update the actual animation
        showError("Steps: " + steps + " Remaining: " + remaining);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == CONFIRM_REQUEST) {
            if (resultCode == RESULT_OK && data != null) {
                mShouldFinishOnStop = true;
                mToken = data.getByteArrayExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
                overridePendingTransition(R.anim.suw_slide_next_in, R.anim.suw_slide_next_out);
                getIntent().putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, mToken);
                startEnrollment();
            } else {
                finish();
            }
        } else {
            super.onActivityResult(requestCode, resultCode, data);
        }
    }

    private void showErrorDialog(CharSequence msg, int msgId) {
        BiometricErrorDialog dialog = FaceErrorDialog.newInstance(msg, msgId);
        dialog.show(getFragmentManager(), FaceErrorDialog.class.getName());
    }

    private void showError(CharSequence error) {
        mErrorText.setText(error);
        if (mErrorText.getVisibility() == View.INVISIBLE) {
            mErrorText.setVisibility(View.VISIBLE);
            mErrorText.setTranslationY(getResources().getDimensionPixelSize(
                    R.dimen.fingerprint_error_text_appear_distance));
            mErrorText.setAlpha(0f);
            mErrorText.animate()
                    .alpha(1f)
                    .translationY(0f)
                    .setDuration(200)
                    .setInterpolator(mLinearOutSlowInInterpolator)
                    .start();
        } else {
            mErrorText.animate().cancel();
            mErrorText.setAlpha(1f);
            mErrorText.setTranslationY(0f);
        }
    }
}