package info.nightscout.androidaps

import android.bluetooth.BluetoothDevice
import android.content.Intent
import android.content.IntentFilter
import android.net.ConnectivityManager
import android.net.wifi.WifiManager
import android.os.Build
import com.uber.rxdogtag.RxDogTag
import dagger.android.AndroidInjector
import dagger.android.DaggerApplication
import info.nightscout.androidaps.database.AppRepository
import info.nightscout.androidaps.database.entities.TherapyEvent
import info.nightscout.androidaps.database.entities.UserEntry
import info.nightscout.androidaps.database.transactions.InsertIfNewByTimestampTherapyEventTransaction
import info.nightscout.androidaps.database.transactions.VersionChangeTransaction
import info.nightscout.androidaps.db.CompatDBHelper
import info.nightscout.androidaps.dependencyInjection.DaggerAppComponent
import info.nightscout.androidaps.di.StaticInjector
import info.nightscout.androidaps.interfaces.Config
import info.nightscout.androidaps.interfaces.ConfigBuilder
import info.nightscout.androidaps.interfaces.PluginBase
import info.nightscout.androidaps.logging.AAPSLogger
import info.nightscout.androidaps.logging.LTag
import info.nightscout.androidaps.logging.UserEntryLogger
import info.nightscout.androidaps.plugins.configBuilder.PluginStore
import info.nightscout.androidaps.plugins.constraints.versionChecker.VersionCheckerUtils
import info.nightscout.androidaps.plugins.general.overview.notifications.Notification
import info.nightscout.androidaps.plugins.general.overview.notifications.NotificationStore
import info.nightscout.androidaps.receivers.BTReceiver
import info.nightscout.androidaps.receivers.ChargingStateReceiver
import info.nightscout.androidaps.receivers.KeepAliveReceiver.KeepAliveManager
import info.nightscout.androidaps.receivers.NetworkChangeReceiver
import info.nightscout.androidaps.receivers.TimeDateOrTZChangeReceiver
import info.nightscout.androidaps.services.AlarmSoundServiceHelper
import info.nightscout.androidaps.utils.ActivityMonitor
import info.nightscout.androidaps.utils.DateUtil
import info.nightscout.androidaps.utils.buildHelper.BuildHelper
import info.nightscout.androidaps.utils.locale.LocaleHelper
import info.nightscout.androidaps.utils.protection.PasswordCheck
import info.nightscout.androidaps.utils.sharedPreferences.SP
import io.reactivex.disposables.CompositeDisposable
import io.reactivex.exceptions.UndeliverableException
import io.reactivex.plugins.RxJavaPlugins
import io.reactivex.rxkotlin.plusAssign
import net.danlew.android.joda.JodaTimeAndroid
import java.io.IOException
import java.net.SocketException
import javax.inject.Inject

class MainApp : DaggerApplication() {

    private val disposable = CompositeDisposable()

    @Inject lateinit var pluginStore: PluginStore
    @Inject lateinit var aapsLogger: AAPSLogger
    @Inject lateinit var activityMonitor: ActivityMonitor
    @Inject lateinit var versionCheckersUtils: VersionCheckerUtils
    @Inject lateinit var sp: SP
    @Inject lateinit var config: Config
    @Inject lateinit var buildHelper: BuildHelper
    @Inject lateinit var configBuilder: ConfigBuilder
    @Inject lateinit var keepAliveManager: KeepAliveManager
    @Inject lateinit var plugins: List<@JvmSuppressWildcards PluginBase>
    @Inject lateinit var compatDBHelper: CompatDBHelper
    @Inject lateinit var repository: AppRepository
    @Inject lateinit var dateUtil: DateUtil
    @Inject lateinit var staticInjector: StaticInjector// TODO avoid , here fake only to initialize
    @Inject lateinit var uel: UserEntryLogger
    @Inject lateinit var passwordCheck: PasswordCheck
    @Inject lateinit var alarmSoundServiceHelper: AlarmSoundServiceHelper
    @Inject lateinit var notificationStore: NotificationStore

    override fun onCreate() {
        super.onCreate()
        aapsLogger.debug("onCreate")
        RxDogTag.install()
        setRxErrorHandler()
        LocaleHelper.update(this)

        var gitRemote: String? = BuildConfig.REMOTE
        var commitHash: String? = BuildConfig.HEAD
        if (gitRemote?.contains("NoGitSystemAvailable") == true) {
            gitRemote = null
            commitHash = null
        }
        disposable += repository.runTransaction(VersionChangeTransaction(BuildConfig.VERSION_NAME, BuildConfig.VERSION_CODE, gitRemote, commitHash)).subscribe()
        if (sp.getBoolean(R.string.key_ns_logappstartedevent, config.APS))
            disposable += repository
                .runTransaction(
                    InsertIfNewByTimestampTherapyEventTransaction(
                        timestamp = dateUtil.now(),
                        type = TherapyEvent.Type.NOTE,
                        note = getString(info.nightscout.androidaps.core.R.string.androidaps_start) + " - " + Build.MANUFACTURER + " " + Build.MODEL,
                        glucoseUnit = TherapyEvent.GlucoseUnit.MGDL
                    )
                )
                .subscribe()
        disposable += compatDBHelper.dbChangeDisposable()
        registerActivityLifecycleCallbacks(activityMonitor)
        JodaTimeAndroid.init(this)
        aapsLogger.debug("Version: " + BuildConfig.VERSION_NAME)
        aapsLogger.debug("BuildVersion: " + BuildConfig.BUILDVERSION)
        aapsLogger.debug("Remote: " + BuildConfig.REMOTE)
        registerLocalBroadcastReceiver()

        // trigger here to see the new version on app start after an update
        versionCheckersUtils.triggerCheckVersion()
        // check if identification is set
        if (buildHelper.isDev() && sp.getStringOrNull(R.string.key_email_for_crash_report, null).isNullOrBlank())
            notificationStore.add(Notification(Notification.IDENTIFICATION_NOT_SET, getString(R.string.identification_not_set), Notification.INFO))

        // Register all tabs in app here
        pluginStore.plugins = plugins
        configBuilder.initialize()
        keepAliveManager.setAlarm(this)
        doMigrations()
        uel.log(UserEntry.Action.START_AAPS, UserEntry.Sources.Aaps)
        passwordCheck.passwordResetCheck(this)
    }

    private fun setRxErrorHandler() {
        RxJavaPlugins.setErrorHandler { t: Throwable ->
            var e = t
            if (e is UndeliverableException) {
                e = e.cause!!
            }
            if (e is IOException || e is SocketException) {
                // fine, irrelevant network problem or API that throws on cancellation
                return@setErrorHandler
            }
            if (e is InterruptedException) {
                // fine, some blocking code was interrupted by a dispose call
                return@setErrorHandler
            }
            if (e is NullPointerException || e is IllegalArgumentException) {
                // that's likely a bug in the application
                Thread.currentThread().uncaughtExceptionHandler?.uncaughtException(Thread.currentThread(), e)
                return@setErrorHandler
            }
            if (e is IllegalStateException) {
                // that's a bug in RxJava or in a custom operator
                Thread.currentThread().uncaughtExceptionHandler?.uncaughtException(Thread.currentThread(), e)
                return@setErrorHandler
            }
            aapsLogger.warn(LTag.CORE, "Undeliverable exception received, not sure what to do", e)
        }
    }

    private fun doMigrations() {
        // set values for different builds
        if (!sp.contains(R.string.key_ns_alarms)) sp.putBoolean(R.string.key_ns_alarms, config.NSCLIENT)
        if (!sp.contains(R.string.key_ns_announcements)) sp.putBoolean(R.string.key_ns_announcements, config.NSCLIENT)
        if (!sp.contains(R.string.key_language)) sp.putString(R.string.key_language, "default")
    }

    override fun applicationInjector(): AndroidInjector<out DaggerApplication> {
        return DaggerAppComponent
            .builder()
            .application(this)
            .build()
    }

    private fun registerLocalBroadcastReceiver() {
        var filter = IntentFilter()
        filter.addAction(Intent.ACTION_TIME_CHANGED)
        filter.addAction(Intent.ACTION_TIMEZONE_CHANGED)
        registerReceiver(TimeDateOrTZChangeReceiver(), filter)
        filter = IntentFilter()
        @Suppress("DEPRECATION")
        filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION)
        filter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION)
        filter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION)
        registerReceiver(NetworkChangeReceiver(), filter)
        filter = IntentFilter()
        filter.addAction(Intent.ACTION_POWER_CONNECTED)
        filter.addAction(Intent.ACTION_POWER_DISCONNECTED)
        filter.addAction(Intent.ACTION_BATTERY_CHANGED)
        registerReceiver(ChargingStateReceiver(), filter)
        filter = IntentFilter()
        filter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED)
        filter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED)
        registerReceiver(BTReceiver(), filter)
    }

    override fun onTerminate() {
        aapsLogger.debug(LTag.CORE, "onTerminate")
        unregisterActivityLifecycleCallbacks(activityMonitor)
        keepAliveManager.cancelAlarm(this)
        alarmSoundServiceHelper.stopService(this)
        super.onTerminate()
    }
}