package expo.modules.libvlcplayer.managers

import android.app.Activity
import android.view.WindowManager
import expo.modules.kotlin.AppContext
import expo.modules.kotlin.exception.Exceptions

class KeepAwakeManager(
  private val appContext: AppContext,
) {
  private val activity: Activity
    get() = appContext.currentActivity ?: throw Exceptions.MissingActivity()

  private val anyPlayingView: Boolean
    get() =
      MediaPlayerManager.expoViews.any { view ->
        view.mediaPlayer?.isPlaying() == true
      }

  private fun activateKeepAwake() {
    activity.let { activity ->
      activity.runOnUiThread {
        activity.window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
      }
    }
  }

  private fun deactivateKeepAwake() {
    activity.let { activity ->
      activity.runOnUiThread {
        activity.window.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
      }
    }
  }

  fun toggleKeepAwake() {
    if (anyPlayingView) {
      activateKeepAwake()
    } else {
      deactivateKeepAwake()
    }
  }
}