/*
 *    Copyright 2015 Kaopiz Software Co., Ltd.
 *
 *    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.reactnative.hud;

import android.content.Context;
import android.os.Build;
import android.view.View;
import android.view.Window;
import android.view.WindowInsets;
import android.view.WindowManager;

import androidx.annotation.ColorInt;
import androidx.core.view.ViewCompat;

class Helper {

    private static float scale;

    public static int dpToPixel(float dp, Context context) {
        if (scale == 0) {
            scale = context.getResources().getDisplayMetrics().density;
        }
        return (int) (dp * scale);
    }

    public static void setStatusBarStyle(Window window, boolean dark) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            View decorView = window.getDecorView();
            decorView.setSystemUiVisibility(
                    dark ? View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR : 0);
        }
    }

    public static void setNavigationBarColor(Window window, @ColorInt int color) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            int curColor = window.getNavigationBarColor();
            if (curColor == color) {
                return;
            }
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setNavigationBarColor(color);
        }
    }

    public static void setNavigationBarStyle(Window window, boolean dark) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            View decorView = window.getDecorView();
            int systemUi = decorView.getSystemUiVisibility();
            if (dark) {
                systemUi |= View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR;
            } else {
                systemUi &= ~View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR;
            }
            decorView.setSystemUiVisibility(systemUi);
        }
    }

    public static void setStatusBarTranslucent(Window window, boolean translucent) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            View decorView = window.getDecorView();
            if (translucent) {
                decorView.setOnApplyWindowInsetsListener((v, insets) -> {
                    WindowInsets defaultInsets = v.onApplyWindowInsets(insets);
                    return defaultInsets.replaceSystemWindowInsets(
                            defaultInsets.getSystemWindowInsetLeft(),
                            0,
                            defaultInsets.getSystemWindowInsetRight(),
                            defaultInsets.getSystemWindowInsetBottom());
                });
            } else {
                decorView.setOnApplyWindowInsetsListener(null);
            }

            ViewCompat.requestApplyInsets(decorView);
        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            if (translucent) {
                window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            } else {
                window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            }
            ViewCompat.requestApplyInsets(window.getDecorView());
        }
    }
}