mihon/app/src/main/java/eu/kanade/tachiyomi/App.kt

package eu.kanade.tachiyomi

import android.app.Application
import android.content.Context
import android.content.res.Configuration
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import android.graphics.Color
import android.os.Build
import android.os.Environment
import androidx.multidex.MultiDex
import com.elvishew.xlog.LogConfiguration
import com.elvishew.xlog.LogLevel
import com.elvishew.xlog.XLog
import com.elvishew.xlog.printer.AndroidPrinter
import com.elvishew.xlog.printer.Printer
import com.elvishew.xlog.printer.file.FilePrinter
import com.elvishew.xlog.printer.file.backup.NeverBackupStrategy
import com.elvishew.xlog.printer.file.clean.FileLastModifiedCleanStrategy
import com.elvishew.xlog.printer.file.naming.DateFileNameGenerator
import com.github.ajalt.reprint.core.Reprint
import com.google.android.gms.common.GooglePlayServicesNotAvailableException
import com.google.android.gms.common.GooglePlayServicesRepairableException
import com.google.android.gms.security.ProviderInstaller
import com.kizitonwose.time.days
import com.ms_square.debugoverlay.DebugOverlay
import com.ms_square.debugoverlay.modules.FpsModule
import eu.kanade.tachiyomi.data.backup.BackupCreatorJob
import eu.kanade.tachiyomi.data.library.LibraryUpdateJob
import eu.kanade.tachiyomi.data.notification.Notifications
import eu.kanade.tachiyomi.data.updater.UpdaterJob
import eu.kanade.tachiyomi.util.LocaleHelper
import exh.debug.DebugToggles
import exh.log.CrashlyticsPrinter
import exh.log.EHDebugModeOverlay
import exh.log.EHLogLevel
import io.realm.Realm
import io.realm.RealmConfiguration
import kotlinx.coroutines.GlobalScope
import kotlinx.coroutines.launch
import androidx.lifecycle.Lifecycle
import androidx.lifecycle.LifecycleObserver
import androidx.lifecycle.OnLifecycleEvent
import androidx.lifecycle.ProcessLifecycleOwner
import androidx.multidex.MultiDex
import eu.kanade.tachiyomi.data.notification.Notifications
import eu.kanade.tachiyomi.data.preference.PreferencesHelper
import eu.kanade.tachiyomi.ui.security.SecureActivityDelegate
import eu.kanade.tachiyomi.util.system.LocaleHelper
import timber.log.Timber
import uy.kohesive.injekt.Injekt
import uy.kohesive.injekt.api.InjektScope
import uy.kohesive.injekt.injectLazy
import uy.kohesive.injekt.registry.default.DefaultRegistrar
import java.io.File
import java.security.NoSuchAlgorithmException
import javax.net.ssl.SSLContext
import kotlin.concurrent.thread


open class App : Application(), LifecycleObserver {

    override fun onCreate() {
        super.onCreate()
        if (BuildConfig.DEBUG) Timber.plant(Timber.DebugTree())
        setupExhLogging() // EXH logging

        workaroundAndroid7BrokenSSL()

        Injekt = InjektScope(DefaultRegistrar())
        Injekt.importModule(AppModule(this))

        setupNotificationChannels()
        GlobalScope.launch { deleteOldMetadataRealm() } // Delete old metadata DB (EH)
        Reprint.initialize(this) //Setup fingerprint (EH)
        if((BuildConfig.DEBUG || BuildConfig.BUILD_TYPE == "releaseTest") && DebugToggles.ENABLE_DEBUG_OVERLAY.enabled) {
            setupDebugOverlay()
        }

        LocaleHelper.updateConfiguration(this, resources.configuration)

        ProcessLifecycleOwner.get().lifecycle.addObserver(this)
    }

    override fun attachBaseContext(base: Context) {
        super.attachBaseContext(base)
        MultiDex.install(this)
    }

    override fun onConfigurationChanged(newConfig: Configuration) {
        super.onConfigurationChanged(newConfig)
        LocaleHelper.updateConfiguration(this, newConfig, true)
    }

    private fun workaroundAndroid7BrokenSSL() {
        if(Build.VERSION.SDK_INT == Build.VERSION_CODES.N
                || Build.VERSION.SDK_INT == Build.VERSION_CODES.N_MR1) {
            try {
                SSLContext.getInstance("TLSv1.2")
            } catch (e: NoSuchAlgorithmException) {
                XLog.e("Could not install Android 7 broken SSL workaround!", e)
            }

            try {
                ProviderInstaller.installIfNeeded(applicationContext)
            } catch (e: GooglePlayServicesRepairableException) {
                XLog.e("Could not install Android 7 broken SSL workaround!", e)
            } catch (e: GooglePlayServicesNotAvailableException) {
                XLog.e("Could not install Android 7 broken SSL workaround!", e)
            }
        }
    }

    @OnLifecycleEvent(Lifecycle.Event.ON_STOP)
    @Suppress("unused")
    fun onAppBackgrounded() {
        val preferences: PreferencesHelper by injectLazy()
        if (preferences.lockAppAfter().get() >= 0) {
            SecureActivityDelegate.locked = true
        }
    }

    protected open fun setupNotificationChannels() {
        Notifications.createChannels(this)
    }

    // EXH
    private fun deleteOldMetadataRealm() {
        Realm.init(this)
        val config = RealmConfiguration.Builder()
                .name("gallery-metadata.realm")
                .schemaVersion(3)
                .deleteRealmIfMigrationNeeded()
                .build()
        Realm.deleteRealm(config)

        //Delete old paper db files
        listOf(
                File(filesDir, "gallery-ex"),
                File(filesDir, "gallery-perveden"),
                File(filesDir, "gallery-nhentai")
        ).forEach {
            if(it.exists()) {
                thread {
                    it.deleteRecursively()
                }
            }
        }
    }

    // EXH
    private fun setupExhLogging() {
        EHLogLevel.init(this)

        val logLevel = if(EHLogLevel.shouldLog(EHLogLevel.EXTRA)) {
            LogLevel.ALL
        } else {
            LogLevel.WARN
        }

        val logConfig = LogConfiguration.Builder()
                .logLevel(logLevel)
                .t()
                .st(2)
                .nb()
                .build()

        val printers = mutableListOf<Printer>(AndroidPrinter())

        val logFolder = File(Environment.getExternalStorageDirectory().absolutePath + File.separator +
                getString(R.string.app_name), "logs")

        printers += FilePrinter
                .Builder(logFolder.absolutePath)
                .fileNameGenerator(object : DateFileNameGenerator() {
                    override fun generateFileName(logLevel: Int, timestamp: Long): String {
                        return super.generateFileName(logLevel, timestamp) + "-${BuildConfig.BUILD_TYPE}"
                    }
                })
                .cleanStrategy(FileLastModifiedCleanStrategy(7.days.inMilliseconds.longValue))
                .backupStrategy(NeverBackupStrategy())
                .build()

        // Install Crashlytics in prod
        if(!BuildConfig.DEBUG) {
            printers += CrashlyticsPrinter(LogLevel.ERROR)
        }

        XLog.init(
                logConfig,
                *printers.toTypedArray()
        )

        XLog.d("Application booting...")
    }

    // EXH
    private fun setupDebugOverlay() {
        try {
            DebugOverlay.Builder(this)
                    .modules(FpsModule(), EHDebugModeOverlay(this))
                    .bgColor(Color.parseColor("#7F000000"))
                    .notification(false)
                    .allowSystemLayer(false)
                    .build()
                    .install()
        } catch(e: IllegalStateException) {
            // Crashes if app is in background
            XLog.e("Failed to initialize debug overlay, app in background?", e)
        }
    }
}