package com.vanced.manager.ui

import android.content.Context
import android.content.Intent
import android.os.Bundle
import android.util.Log
import android.view.MenuItem
import androidx.appcompat.app.AppCompatActivity
import androidx.core.content.ContextCompat
import androidx.databinding.DataBindingUtil
import androidx.navigation.NavDestination
import androidx.navigation.findNavController
import androidx.navigation.ui.AppBarConfiguration
import androidx.navigation.ui.setupWithNavController
import androidx.preference.PreferenceManager.getDefaultSharedPreferences
import com.crowdin.platform.Crowdin
import com.crowdin.platform.LoadingStateListener
import com.google.firebase.messaging.FirebaseMessaging
import com.vanced.manager.R
import com.vanced.manager.databinding.ActivityMainBinding
import com.vanced.manager.ui.dialogs.DialogContainer
import com.vanced.manager.ui.fragments.HomeFragmentDirections
import com.vanced.manager.ui.fragments.SettingsFragmentDirections
import com.vanced.manager.ui.fragments.UpdateCheckFragment
import com.vanced.manager.utils.AppUtils.installing
import com.vanced.manager.utils.InternetTools
import com.vanced.manager.utils.LanguageContextWrapper
import com.vanced.manager.utils.PackageHelper
import com.vanced.manager.utils.ThemeHelper.setFinalTheme
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch

class MainActivity : AppCompatActivity() {

    lateinit var binding: ActivityMainBinding
    private val navHost by lazy { findNavController(R.id.nav_host) }

    private val loadingObserver = object : LoadingStateListener {
        val tag = "VMLocalisation"
        override fun onDataChanged() {
            Log.d(tag, "Loaded data")
        }

        override fun onFailure(throwable: Throwable) {
            Log.d(tag, "Failed to load data")
        }

    }

    override fun onCreate(savedInstanceState: Bundle?) {
        setFinalTheme(this)
        super.onCreate(savedInstanceState)
        binding = DataBindingUtil.setContentView(this, R.layout.activity_main)

        with(binding) {
            lifecycleOwner = this@MainActivity
            setSupportActionBar(homeToolbar)
            homeToolbar.setupWithNavController(this@MainActivity.navHost, AppBarConfiguration(this@MainActivity.navHost.graph))
        }
        navHost.addOnDestinationChangedListener { _, currFrag: NavDestination, _ ->
            setDisplayHomeAsUpEnabled(currFrag.id != R.id.home_fragment)
        }

        initDialogs()

    }

    override fun onBackPressed() {
        if (!navHost.popBackStack())
            finish()
    }

    private fun setDisplayHomeAsUpEnabled(isNeeded: Boolean) {
        binding.homeToolbar.navigationIcon = if (isNeeded) ContextCompat.getDrawable(this, R.drawable.ic_keyboard_backspace_black_24dp) else null
    }

    override fun onPause() {
        super.onPause()
        Crowdin.unregisterDataLoadingObserver(loadingObserver)
    }

    override fun onResume() {
        setFinalTheme(this)
        super.onResume()
        Crowdin.registerDataLoadingObserver(loadingObserver)
    }

    override fun onOptionsItemSelected(item: MenuItem): Boolean {
        if (installing.value!!)
            return false

        when (item.itemId) {
            android.R.id.home -> {
                onBackPressedDispatcher.onBackPressed()
                return true
            }
            R.id.toolbar_about -> {
                navHost.navigate(HomeFragmentDirections.toAboutFragment())
                return true
            }
            R.id.toolbar_settings -> {
                navHost.navigate(HomeFragmentDirections.toSettingsFragment())
                return true
            }
            R.id.dev_settings -> {
                navHost.navigate(SettingsFragmentDirections.toDevSettingsFragment())
                return true
            }
            else -> super.onOptionsItemSelected(item)
        }

        return false
    }

    override fun attachBaseContext(newBase: Context) {
        super.attachBaseContext(LanguageContextWrapper.wrap(newBase))
    }

    private fun initDialogs() {
        val prefs = getDefaultSharedPreferences(this)
        val variant = prefs.getString("vanced_variant", "nonroot")
        prefs.getBoolean("show_root_dialog", true)

        when {
            prefs.getBoolean("firstStart", true) -> {
                DialogContainer.showSecurityDialog(this)
                with(FirebaseMessaging.getInstance()) {
                    subscribeToTopic("Vanced-Update")
                    subscribeToTopic("MicroG-Update")
                }
            }
            !prefs.getBoolean("statement", true) -> DialogContainer.statementFalse(this)
            variant == "root" -> {
                if (PackageHelper.getPackageVersionName(
                        "com.google.android.youtube",
                        packageManager
                    ) == "14.21.54")
                    DialogContainer.basicDialog(
                        getString(R.string.hold_on),
                        getString(R.string.magisk_vanced),
                        this
                    )
            }
        }

        checkUpdates()
    }

    private fun checkUpdates() {
        CoroutineScope(Dispatchers.Main).launch {
            if (InternetTools.isUpdateAvailable()) {
                UpdateCheckFragment().show(supportFragmentManager, "UpdateCheck")
            }
        }
    }

}