/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

package com.facebook.react.views.modal

import android.annotation.SuppressLint
import android.content.Context
import android.graphics.Point
import android.view.WindowManager

/** Helper class for Modals. */
@Deprecated("This class is no longer used and will be removed soon.")
internal object ModalHostHelper {
  private val MIN_POINT = Point()
  private val MAX_POINT = Point()
  private val SIZE_POINT = Point()

  /**
   * To get the size of the screen, we use information from the WindowManager and default Display.
   * We don't use DisplayMetricsHolder, or Display#getSize() because they return values that include
   * the status bar. We only want the values of what will actually be shown on screen. We use
   * Display#getSize() to determine if the screen is in portrait or landscape. We don't use
   * getRotation because the 'natural' rotation will be portrait on phones and landscape on tablets.
   * This should only be called on the native modules/shadow nodes thread.
   */
  @Suppress("DEPRECATION")
  @JvmStatic
  fun getModalHostSize(context: Context): Point {
    val wm = context.getSystemService(Context.WINDOW_SERVICE) as WindowManager
    val display = wm.defaultDisplay
    // getCurrentSizeRange will return the min and max width and height that the window can be
    display.getCurrentSizeRange(MIN_POINT, MAX_POINT)
    // getSize will return the dimensions of the screen in its current orientation
    display.getSize(SIZE_POINT)

    val attrs = intArrayOf(android.R.attr.windowFullscreen)
    val theme = context.theme
    val ta = theme.obtainStyledAttributes(attrs)
    val windowFullscreen = ta.getBoolean(0, false)

    // We need to add the status bar height to the height if we have a fullscreen window,
    // because Display.getCurrentSizeRange doesn't include it.
    val resources = context.resources
    @SuppressLint("DiscouragedApi", "InternalInsetResource")
    val statusBarId = resources.getIdentifier("status_bar_height", "dimen", "android")
    var statusBarHeight = 0
    if (windowFullscreen && statusBarId > 0) {
      statusBarHeight = resources.getDimension(statusBarId).toInt()
    }

    return if (SIZE_POINT.x < SIZE_POINT.y) {
      // If we are vertical the width value comes from min width and height comes from max height
      Point(MIN_POINT.x, MAX_POINT.y + statusBarHeight)
    } else {
      // If we are horizontal the width value comes from max width and height comes from min height
      Point(MAX_POINT.x, MIN_POINT.y + statusBarHeight)
    }
  }
}