package com.fireworksdk.bridge.utils

import androidx.fragment.app.Fragment
import androidx.fragment.app.FragmentActivity

object FWFragmentUtil {

  fun removeFragmentsFromActivity(fragmentActivity: FragmentActivity?) {
    fragmentActivity ?: return
    val fragments = fragmentActivity.supportFragmentManager.fragments
    for (f in fragments) {
      removeFragment(fragmentActivity, f)
    }
  }

  fun removeFragment(fragmentActivity: FragmentActivity?, fragment: Fragment?, includeChildren: Boolean = true) {
    fragmentActivity ?: return

    fragment ?: return
    if (!fragment.isAdded || fragment.isDetached || fragment.isRemoving || fragmentActivity.isFinishing) {
      return
    }

    if (includeChildren) {
      removeChildFragment(fragment)
    }

    fragmentActivity.supportFragmentManager.beginTransaction().remove(fragment).commitAllowingStateLoss()
  }

  private fun removeChildFragment(fragment: Fragment?) {
    fragment ?: return
    if (!fragment.isAdded || fragment.isDetached || fragment.isRemoving) {
      return
    }

    val cfm = fragment.childFragmentManager
    val fragments = cfm.fragments
    if (fragments.isEmpty()) {
      return
    }

    for (f in fragments) {
      removeChildFragment(f)
      if (!fragment.isAdded || fragment.isDetached || fragment.isRemoving) {
        continue
      }
      cfm.beginTransaction().remove(f).commitAllowingStateLoss()
    }
  }
}