AquaStream/app/src/main/java/com/lagradost/cloudstream3/MainActivity.kt

package com.lagradost.cloudstream3

import android.app.PictureInPictureParams
import android.content.pm.PackageManager
import android.os.Build
import android.os.Bundle
import com.google.android.material.bottomnavigation.BottomNavigationView
import androidx.appcompat.app.AppCompatActivity
import androidx.core.content.ContentProviderCompat.requireContext
import androidx.lifecycle.ViewModelStore
import androidx.lifecycle.ViewModelStoreOwner
import androidx.navigation.findNavController
import androidx.navigation.ui.AppBarConfiguration
import androidx.navigation.ui.setupWithNavController
import com.lagradost.cloudstream3.UIHelper.checkWrite
import com.lagradost.cloudstream3.UIHelper.hasPIPPermission
import com.lagradost.cloudstream3.UIHelper.requestRW
import com.lagradost.cloudstream3.UIHelper.shouldShowPIPMode

class MainActivity : AppCompatActivity() {
    /*, ViewModelStoreOwner {
        private val appViewModelStore: ViewModelStore by lazy {
            ViewModelStore()
        }

        override fun getViewModelStore(): ViewModelStore {
            return appViewModelStore
        }*/
    companion object {
        var isInPlayer: Boolean = false
        var canShowPipMode: Boolean = false
        var isInPIPMode: Boolean = false
    }

    private fun enterPIPMode() {
        if (!shouldShowPIPMode(isInPlayer) || !canShowPipMode) return
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            try {
                enterPictureInPictureMode(PictureInPictureParams.Builder().build())
            } catch (e: Exception) {
                enterPictureInPictureMode()
            }
        } else {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                enterPictureInPictureMode()
            }
        }
    }

    override fun onUserLeaveHint() {
        super.onUserLeaveHint()
        if (isInPlayer && canShowPipMode) {
            enterPIPMode()
        }
    }

    private fun AppCompatActivity.backPressed(): Boolean {
        val currentFragment = supportFragmentManager.fragments.last {
            it.isVisible
        }

        if (currentFragment != null && supportFragmentManager.fragments.size > 2) {
            //MainActivity.showNavbar()
            supportFragmentManager.beginTransaction()
                .setCustomAnimations(R.anim.enter_anim, R.anim.exit_anim, R.anim.pop_enter, R.anim.pop_exit)
                .remove(currentFragment)
                .commitAllowingStateLoss()
            return true
        }
        return false
    }

    override fun onBackPressed() {
        if (backPressed()) return
        super.onBackPressed()
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        val navView: BottomNavigationView = findViewById(R.id.nav_view)

        //https://stackoverflow.com/questions/52594181/how-to-know-if-user-has-disabled-picture-in-picture-feature-permission
        //https://developer.android.com/guide/topics/ui/picture-in-picture
        canShowPipMode =
            Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && // OS SUPPORT
                    packageManager.hasSystemFeature(PackageManager.FEATURE_PICTURE_IN_PICTURE) && // HAS FEATURE, MIGHT BE BLOCKED DUE TO POWER DRAIN
                    hasPIPPermission() // CHECK IF FEATURE IS ENABLED IN SETTINGS

        val navController = findNavController(R.id.nav_host_fragment)
        // Passing each menu ID as a set of Ids because each
        // menu should be considered as top level destinations.
        val appBarConfiguration = AppBarConfiguration(setOf(
            R.id.navigation_home, R.id.navigation_search, R.id.navigation_notifications))
        //setupActionBarWithNavController(navController, appBarConfiguration)
        navView.setupWithNavController(navController)

        if (!checkWrite()) {
            requestRW()
            if (checkWrite()) return
        }
    }
}