/*
 * Copyright (c) Kuba Szczodrzyński 2019-11-26.
 */

package pl.szczodrzynski.edziennik

import android.content.Intent
import android.content.pm.PackageManager
import android.content.pm.ShortcutInfo
import android.content.pm.ShortcutManager
import android.graphics.drawable.Icon
import android.os.Build
import android.provider.Settings
import android.util.Log
import android.widget.Toast
import androidx.appcompat.app.AppCompatDelegate
import androidx.multidex.MultiDexApplication
import androidx.work.Configuration
import cat.ereza.customactivityoncrash.config.CaocConfig
import com.chuckerteam.chucker.api.ChuckerCollector
import com.chuckerteam.chucker.api.ChuckerInterceptor
import com.chuckerteam.chucker.api.RetentionManager
import com.google.firebase.FirebaseApp
import com.google.firebase.FirebaseOptions
import com.google.firebase.iid.FirebaseInstanceId
import com.google.firebase.messaging.FirebaseMessaging
import com.google.gson.Gson
import com.hypertrack.hyperlog.HyperLog
import com.mikepenz.iconics.Iconics
import im.wangchao.mhttp.MHttp
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.Job
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
import me.leolin.shortcutbadger.ShortcutBadger
import okhttp3.OkHttpClient
import org.greenrobot.eventbus.EventBus
import pl.szczodrzynski.edziennik.config.AppData
import pl.szczodrzynski.edziennik.config.Config
import pl.szczodrzynski.edziennik.data.api.events.ProfileListEmptyEvent
import pl.szczodrzynski.edziennik.data.api.szkolny.SzkolnyApi
import pl.szczodrzynski.edziennik.data.api.szkolny.interceptor.Signing
import pl.szczodrzynski.edziennik.data.db.AppDb
import pl.szczodrzynski.edziennik.data.db.entity.Profile
import pl.szczodrzynski.edziennik.data.db.enums.LoginType
import pl.szczodrzynski.edziennik.ext.DAY
import pl.szczodrzynski.edziennik.ext.MS
import pl.szczodrzynski.edziennik.ext.putExtras
import pl.szczodrzynski.edziennik.ext.setLanguage
import pl.szczodrzynski.edziennik.network.SSLProviderInstaller
import pl.szczodrzynski.edziennik.network.cookie.DumbCookieJar
import pl.szczodrzynski.edziennik.sync.SyncWorker
import pl.szczodrzynski.edziennik.sync.UpdateWorker
import pl.szczodrzynski.edziennik.ui.base.CrashActivity
import pl.szczodrzynski.edziennik.ui.base.enums.NavTarget
import pl.szczodrzynski.edziennik.utils.DebugLogFormat
import pl.szczodrzynski.edziennik.utils.PermissionChecker
import pl.szczodrzynski.edziennik.utils.Themes
import pl.szczodrzynski.edziennik.utils.Utils
import pl.szczodrzynski.edziennik.utils.Utils.d
import pl.szczodrzynski.edziennik.utils.managers.AttendanceManager
import pl.szczodrzynski.edziennik.utils.managers.AvailabilityManager
import pl.szczodrzynski.edziennik.utils.managers.BuildManager
import pl.szczodrzynski.edziennik.utils.managers.EventManager
import pl.szczodrzynski.edziennik.utils.managers.GradesManager
import pl.szczodrzynski.edziennik.utils.managers.MessageManager
import pl.szczodrzynski.edziennik.utils.managers.NoteManager
import pl.szczodrzynski.edziennik.utils.managers.NotificationChannelsManager
import pl.szczodrzynski.edziennik.utils.managers.PermissionManager
import pl.szczodrzynski.edziennik.utils.managers.TextStylingManager
import pl.szczodrzynski.edziennik.utils.managers.TimetableManager
import pl.szczodrzynski.edziennik.utils.managers.UpdateManager
import pl.szczodrzynski.edziennik.utils.managers.UserActionManager
import java.util.concurrent.TimeUnit
import kotlin.coroutines.CoroutineContext
import kotlin.system.exitProcess

class App : MultiDexApplication(), Configuration.Provider, CoroutineScope {
    companion object {
        @Volatile
        lateinit var db: AppDb
            private set
        lateinit var config: Config
            // private set // for LabFragment
        lateinit var profile: Profile
            private set
        lateinit var data: AppData
            private set
        val profileId
            get() = profile.id

        var enableChucker = false
        var debugMode = false
        var devMode = false
    }

    val api by lazy { SzkolnyApi(this) }
    val attendanceManager by lazy { AttendanceManager(this) }
    val availabilityManager by lazy { AvailabilityManager(this) }
    val buildManager by lazy { BuildManager(this) }
    val eventManager by lazy { EventManager(this) }
    val gradesManager by lazy { GradesManager(this) }
    val messageManager by lazy { MessageManager(this) }
    val noteManager by lazy { NoteManager(this) }
    val notificationChannelsManager by lazy { NotificationChannelsManager(this) }
    val permissionManager by lazy { PermissionManager(this) }
    val textStylingManager by lazy { TextStylingManager(this) }
    val timetableManager by lazy { TimetableManager(this) }
    val updateManager by lazy { UpdateManager(this) }
    val userActionManager by lazy { UserActionManager(this) }

    val db
        get() = App.db
    val config
        get() = App.config
    val profile
        get() = App.profile
    val profileId
        get() = App.profileId
    val data
        get() = App.data

    private val job = Job()
    override val coroutineContext: CoroutineContext
        get() = job + Dispatchers.Main
    override fun getWorkManagerConfiguration() = Configuration.Builder()
            .setMinimumLoggingLevel(Log.VERBOSE)
            .build()

    val permissionChecker by lazy { PermissionChecker(this) }
    val gson by lazy { Gson() }

    /*    _    _ _______ _______ _____
         | |  | |__   __|__   __|  __ \
         | |__| |  | |     | |  | |__) |
         |  __  |  | |     | |  |  ___/
         | |  | |  | |     | |  | |
         |_|  |_|  |_|     |_|  |*/
    lateinit var http: OkHttpClient
    lateinit var httpLazy: OkHttpClient

    private fun buildHttp() {
        val builder = OkHttpClient.Builder()
            .cache(null)
            .followRedirects(true)
            .followSslRedirects(true)
            .retryOnConnectionFailure(true)
            .cookieJar(cookieJar)
            .connectTimeout(15, TimeUnit.SECONDS)
            .writeTimeout(10, TimeUnit.SECONDS)
            .readTimeout(30, TimeUnit.SECONDS)

        SSLProviderInstaller.enableSupportedTls(builder, enableCleartext = true)

        if (devMode) {
            if (enableChucker) {
                val chuckerCollector = ChuckerCollector(this, true, RetentionManager.Period.ONE_HOUR)
                val chuckerInterceptor = ChuckerInterceptor(this, chuckerCollector)
                builder.addInterceptor(chuckerInterceptor)
            }
        }

        http = builder.build()

        httpLazy = http.newBuilder()
            .followRedirects(false)
            .followSslRedirects(false)
            .build()

        MHttp.instance().customOkHttpClient(http)
    }
    val cookieJar by lazy { DumbCookieJar(this) }

    /*     _____ _                   _
          / ____(_)                 | |
         | (___  _  __ _ _ __   __ _| |_ _   _ _ __ ___
          \___ \| |/ _` | '_ \ / _` | __| | | | '__/ _ \
          ____) | | (_| | | | | (_| | |_| |_| | | |  __/
         |_____/|_|\__, |_| |_|\__,_|\__|\__,_|_|  \___|
                    __/ |
                   |__*/
    val deviceId: String by lazy { Settings.Secure.getString(contentResolver, Settings.Secure.ANDROID_ID) ?: "" }
    private var unreadBadgesAvailable = true

    /*                 _____                _
                      / ____|              | |
           ___  _ __ | |     _ __ ___  __ _| |_ ___
          / _ \| '_ \| |    | '__/ _ \/ _` | __/ _ \
         | (_) | | | | |____| | |  __/ (_| | ||  __/
          \___/|_| |_|\_____|_|  \___|\__,_|\__\__*/
    override fun onCreate() {
        super.onCreate()
        AppCompatDelegate.setCompatVectorFromResourcesEnabled(true)
        CaocConfig.Builder.create()
                .backgroundMode(CaocConfig.BACKGROUND_MODE_SHOW_CUSTOM)
                .enabled(true)
                .showErrorDetails(true)
                .showRestartButton(true)
                .logErrorOnRestart(true)
                .trackActivities(true)
                .minTimeBetweenCrashesMs(60*1000)
                .errorDrawable(R.drawable.ic_rip)
                .restartActivity(MainActivity::class.java)
                .errorActivity(CrashActivity::class.java)
                .apply()
        Iconics.init(applicationContext)
        Iconics.respectFontBoundsDefault = true

        // initialize companion object values
        AppData.read(this)
        App.db = AppDb(this)
        App.config = Config(App.db)
        debugMode = BuildConfig.DEBUG
        devMode = config.devMode ?: debugMode
        enableChucker = config.enableChucker ?: devMode

        if (devMode) {
            HyperLog.initialize(this)
            HyperLog.setLogLevel(Log.VERBOSE)
            HyperLog.setLogFormat(DebugLogFormat(this))
        }

        if (!profileLoadById(config.lastProfileId)) {
            val success = db.profileDao().firstId?.let { profileLoadById(it) }
            if (success != true)
                profileLoad(Profile(0, 0, LoginType.TEMPLATE, ""))
        }

        buildHttp()

        Themes.themeInt = config.ui.theme
        config.ui.language?.let {
            setLanguage(it)
        }

        Signing.getCert(this)

        launch {
            withContext(Dispatchers.Default) {
                config.migrate(this@App)

                SSLProviderInstaller.install(applicationContext, this@App::buildHttp)

                if (config.devModePassword != null)
                    checkDevModePassword()

                if (config.sync.enabled)
                    SyncWorker.scheduleNext(this@App, false)
                else
                    SyncWorker.cancelNext(this@App)

                if (config.sync.notifyAboutUpdates)
                    UpdateWorker.scheduleNext(this@App, false)
                else
                    UpdateWorker.cancelNext(this@App)

                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1) {
                    val shortcutManager = getSystemService(ShortcutManager::class.java)

                    val shortcutTimetable = ShortcutInfo.Builder(this@App, "item_timetable")
                            .setShortLabel(getString(R.string.shortcut_timetable)).setLongLabel(getString(R.string.shortcut_timetable))
                            .setIcon(Icon.createWithResource(this@App, R.mipmap.ic_shortcut_timetable))
                            .setIntent(Intent(Intent.ACTION_MAIN, null, this@App, MainActivity::class.java)
                                    .putExtras("fragmentId" to NavTarget.TIMETABLE))
                            .build()

                    val shortcutAgenda = ShortcutInfo.Builder(this@App, "item_agenda")
                            .setShortLabel(getString(R.string.shortcut_agenda)).setLongLabel(getString(R.string.shortcut_agenda))
                            .setIcon(Icon.createWithResource(this@App, R.mipmap.ic_shortcut_agenda))
                            .setIntent(Intent(Intent.ACTION_MAIN, null, this@App, MainActivity::class.java)
                                    .putExtras("fragmentId" to NavTarget.AGENDA))
                            .build()

                    val shortcutGrades = ShortcutInfo.Builder(this@App, "item_grades")
                            .setShortLabel(getString(R.string.shortcut_grades)).setLongLabel(getString(R.string.shortcut_grades))
                            .setIcon(Icon.createWithResource(this@App, R.mipmap.ic_shortcut_grades))
                            .setIntent(Intent(Intent.ACTION_MAIN, null, this@App, MainActivity::class.java)
                                    .putExtras("fragmentId" to NavTarget.GRADES))
                            .build()

                    val shortcutHomework = ShortcutInfo.Builder(this@App, "item_homeworks")
                            .setShortLabel(getString(R.string.shortcut_homework)).setLongLabel(getString(R.string.shortcut_homework))
                            .setIcon(Icon.createWithResource(this@App, R.mipmap.ic_shortcut_homework))
                            .setIntent(Intent(Intent.ACTION_MAIN, null, this@App, MainActivity::class.java)
                                    .putExtras("fragmentId" to NavTarget.HOMEWORK))
                            .build()

                    val shortcutMessages = ShortcutInfo.Builder(this@App, "item_messages")
                            .setShortLabel(getString(R.string.shortcut_messages)).setLongLabel(getString(R.string.shortcut_messages))
                            .setIcon(Icon.createWithResource(this@App, R.mipmap.ic_shortcut_messages))
                            .setIntent(Intent(Intent.ACTION_MAIN, null, this@App, MainActivity::class.java)
                                    .putExtras("fragmentId" to NavTarget.MESSAGES))
                            .build()

                    shortcutManager.dynamicShortcuts = listOf(
                            shortcutTimetable,
                            shortcutAgenda,
                            shortcutGrades,
                            shortcutHomework,
                            shortcutMessages
                    )
                } // shortcuts - end

                notificationChannelsManager.registerAllChannels()


                if (config.appInstalledTime == 0L)
                    try {
                        config.appInstalledTime = packageManager.getPackageInfo(packageName, 0).firstInstallTime
                        config.appRateSnackbarTime = config.appInstalledTime + 7 * DAY * MS
                    } catch (e: PackageManager.NameNotFoundException) {
                        e.printStackTrace()
                    }

                val pushMobidziennikApp = FirebaseApp.initializeApp(
                        this@App,
                        FirebaseOptions.Builder()
                                .setProjectId("mobidziennik")
                                .setStorageBucket("mobidziennik.appspot.com")
                                .setDatabaseUrl("https://mobidziennik.firebaseio.com")
                                .setGcmSenderId("747285019373")
                                .setApiKey("AIzaSyCi5LmsZ5BBCQnGtrdvWnp1bWLCNP8OWQE")
                                .setApplicationId("1:747285019373:android:f6341bf7b158621d")
                                .build(),
                        "Mobidziennik2"
                )

                val pushLibrusApp = FirebaseApp.initializeApp(
                        this@App,
                        FirebaseOptions.Builder()
                                .setProjectId("synergiadru")
                                .setStorageBucket("synergiadru.appspot.com")
                                .setDatabaseUrl("https://synergiadru.firebaseio.com")
                                .setGcmSenderId("513056078587")
                                .setApiKey("AIzaSyDfTuEoYPKdv4aceEws1CO3n0-HvTndz-o")
                                .setApplicationId("1:513056078587:android:1e29083b760af544")
                                .build(),
                        "Librus"
                )

                val pushVulcanApp = FirebaseApp.initializeApp(
                        this@App,
                        FirebaseOptions.Builder()
                                .setProjectId("dzienniczekplus")
                                .setStorageBucket("dzienniczekplus.appspot.com")
                                .setDatabaseUrl("https://dzienniczekplus.firebaseio.com")
                                .setGcmSenderId("987828170337")
                                .setApiKey("AIzaSyDW8MUtanHy64_I0oCpY6cOxB3jrvJd_iA")
                                .setApplicationId("1:987828170337:android:ac97431a0a4578c3")
                                .build(),
                        "Vulcan"
                )

                val pushVulcanHebeApp = FirebaseApp.initializeApp(
                    this@App,
                    FirebaseOptions.Builder()
                        .setProjectId("dzienniczekplus")
                        .setStorageBucket("dzienniczekplus.appspot.com")
                        .setDatabaseUrl("https://dzienniczekplus.firebaseio.com")
                        .setGcmSenderId("987828170337")
                        .setApiKey("AIzaSyDW8MUtanHy64_I0oCpY6cOxB3jrvJd_iA")
                        .setApplicationId("1:987828170337:android:7e16404b9e5deaaa")
                        .build(),
                    "VulcanHebe"
                )

                try {
                    FirebaseInstanceId.getInstance().instanceId.addOnSuccessListener { instanceIdResult ->
                        val token = instanceIdResult.token
                        d("Firebase", "Got App token: $token")
                        config.sync.tokenApp = token
                    }
                    FirebaseInstanceId.getInstance(pushMobidziennikApp).instanceId.addOnSuccessListener { instanceIdResult ->
                        val token = instanceIdResult.token
                        d("Firebase", "Got Mobidziennik2 token: $token")
                        if (token != config.sync.tokenMobidziennik) {
                            config.sync.tokenMobidziennik = token
                            config.sync.tokenMobidziennikList = listOf()
                        }
                    }
                    FirebaseInstanceId.getInstance(pushLibrusApp).instanceId.addOnSuccessListener { instanceIdResult ->
                        val token = instanceIdResult.token
                        d("Firebase", "Got Librus token: $token")
                        if (token != config.sync.tokenLibrus) {
                            config.sync.tokenLibrus = token
                            config.sync.tokenLibrusList = listOf()
                        }
                    }
                    FirebaseInstanceId.getInstance(pushVulcanApp).instanceId.addOnSuccessListener { instanceIdResult ->
                        val token = instanceIdResult.token
                        d("Firebase", "Got Vulcan token: $token")
                        if (token != config.sync.tokenVulcan) {
                            config.sync.tokenVulcan = token
                            config.sync.tokenVulcanList = listOf()
                        }
                    }
                    FirebaseInstanceId.getInstance(pushVulcanHebeApp).instanceId.addOnSuccessListener { instanceIdResult ->
                        val token = instanceIdResult.token
                        d("Firebase", "Got VulcanHebe token: $token")
                        if (token != config.sync.tokenVulcanHebe) {
                            config.sync.tokenVulcanHebe = token
                            config.sync.tokenVulcanHebeList = listOf()
                        }
                    }
                    FirebaseMessaging.getInstance().subscribeToTopic(packageName)
                } catch (e: IllegalStateException) {
                    e.printStackTrace()
                }
            }

            db.metadataDao().countUnseen().observeForever { count: Int ->
                if (unreadBadgesAvailable)
                    unreadBadgesAvailable = ShortcutBadger.applyCount(this@App, count)
            }
        }
    }

    fun profileLoad(profile: Profile) {
        App.profile = profile
        App.config.lastProfileId = profile.id
        try {
            App.data = AppData.get(profile.loginStoreType)
            d("App", "Loaded AppData: ${App.data}")
        } catch (e: Exception) {
            Log.e("App", "Cannot load AppData", e)
            Toast.makeText(this, R.string.app_cannot_load_data, Toast.LENGTH_LONG).show()
            exitProcess(0)
        }
    }

    private fun profileLoadById(profileId: Int): Boolean {
        db.profileDao().getByIdNow(profileId)?.also {
            profileLoad(it)
            return true
        }
        return false
    }
    fun profileLoad(profileId: Int, onSuccess: (profile: Profile) -> Unit) {
        launch {
            val success = withContext(Dispatchers.Default) {
                profileLoadById(profileId)
            }
            if (success)
                onSuccess(profile)
            else
                profileLoadLast(onSuccess)
        }
    }
    fun profileLoadLast(onSuccess: (profile: Profile) -> Unit) {
        launch {
            val success = withContext(Dispatchers.Default) {
                profileLoadById(db.profileDao().lastId ?: return@withContext false)
            }
            if (!success) {
                EventBus.getDefault().post(ProfileListEmptyEvent())
            }
            else {
                onSuccess(profile)
            }
        }
    }
    fun profileSave() = profileSave(profile)
    fun profileSave(profile: Profile) {
        launch(Dispatchers.Default) {
            App.db.profileDao().add(profile)
        }
    }

    fun checkDevModePassword() {
        devMode = try {
            Utils.AESCrypt.decrypt("nWFVxY65Pa8/aRrT7EylNAencmOD+IxUY2Gg/beiIWY=", config.devModePassword) == "ok here you go it's enabled now" || BuildConfig.DEBUG
        } catch (e: Exception) {
            e.printStackTrace()
            false
        }
    }
}