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package com.alibaba.weex.commons.util;

import android.content.res.TypedArray;
import android.graphics.Point;
import android.os.Build;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;

import java.lang.reflect.Field;
import java.lang.reflect.Method;

public class ScreenUtil {
    private static final String TAG = "WXTBUtil";

    private static boolean isSupportSmartBar = false;

    static {
        isSupportSmartBar = isSupportSmartBar();
    }
    public static int getDisplayWidth(AppCompatActivity activity){
        int width=0;
        if (activity != null && activity.getWindowManager() != null && activity.getWindowManager().getDefaultDisplay() != null) {
            Point point=new Point();
            activity.getWindowManager().getDefaultDisplay().getSize(point);
            width = point.x;
        }
        return width;
    }

    public static int getDisplayHeight(AppCompatActivity activity) {
        int height = 0;
        if (activity != null && activity.getWindowManager() != null && activity.getWindowManager().getDefaultDisplay() != null) {
            Point point=new Point();
            activity.getWindowManager().getDefaultDisplay().getSize(point);
            height=point.y;
        }

        Log.e(TAG, "isSupportSmartBar:" + isSupportSmartBar);

        if (isSupportSmartBar) {
            int smartBarHeight = getSmartBarHeight(activity);
            Log.e(TAG, "smartBarHeight:" + smartBarHeight);
            height -= smartBarHeight;
        }

        if (activity.getSupportActionBar() != null) {
          int actionbar= activity.getSupportActionBar().getHeight();
          if(actionbar==0){
            TypedArray actionbarSizeTypedArray=activity.obtainStyledAttributes(new int[]{android.R.attr.actionBarSize});
            actionbar= (int) actionbarSizeTypedArray.getDimension(0,0);
          }
          Log.d(TAG, "actionbar:" + actionbar);
          height -= actionbar;
        }

        int status = getStatusBarHeight(activity);
        Log.d(TAG, "status:" + status);

        height -= status;

        Log.d(TAG,"height:"+height);
        return height;
    }

    private static int getStatusBarHeight(AppCompatActivity activity) {
        Class<?> c;
        Object obj;
        Field field;
        int x;
        int statusBarHeight = 0;
        try {
            c = Class.forName("com.android.internal.R$dimen");
            obj = c.newInstance();
            field = c.getField("status_bar_height");
            x = Integer.parseInt(field.get(obj).toString());
            statusBarHeight = activity.getResources().getDimensionPixelSize(x);
        } catch (Exception e1) {
            e1.printStackTrace();
        }
        return statusBarHeight;
    }

    private static int getSmartBarHeight(AppCompatActivity activity) {
        ActionBar actionbar = activity.getSupportActionBar();
        if (actionbar != null)
            try {
                Class c = Class.forName("com.android.internal.R$dimen");
                Object obj = c.newInstance();
                Field field = c.getField("mz_action_button_min_height");
                int height = Integer.parseInt(field.get(obj).toString());
                return activity.getResources().getDimensionPixelSize(height);
            } catch (Exception e) {
                e.printStackTrace();
                actionbar.getHeight();
            }
        return 0;
    }

    private static boolean isSupportSmartBar() {
        try {
            final Method method = Build.class.getMethod("hasSmartBar");
            return method != null;
        } catch (final Exception e) {
            return false;
        }
    }
}