VancedManager/app/src/main/java/com/vanced/manager/core/downloader/VancedDownloadService.kt

package com.vanced.manager.core.downloader

import android.app.DownloadManager
import android.app.Service
import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.content.IntentFilter
import android.net.Uri
import android.os.Build
import android.os.IBinder
import androidx.localbroadcastmanager.content.LocalBroadcastManager
import androidx.preference.PreferenceManager
import com.downloader.Error
import com.downloader.OnDownloadListener
import com.downloader.OnStartOrResumeListener
import com.downloader.PRDownloader
import com.vanced.manager.R
import com.vanced.manager.core.installer.RootSplitInstallerService
import com.vanced.manager.core.installer.SplitInstaller
import com.vanced.manager.ui.fragments.HomeFragment
import com.vanced.manager.utils.InternetTools.baseUrl
import com.vanced.manager.utils.InternetTools.getFileNameFromUrl
import com.vanced.manager.utils.InternetTools.getObjectFromJson
import com.vanced.manager.utils.NotificationHelper.cancelNotif
import com.vanced.manager.utils.NotificationHelper.createBasicNotif
import com.vanced.manager.utils.NotificationHelper.displayDownloadNotif
import kotlinx.coroutines.launch
import kotlinx.coroutines.runBlocking
import java.io.File

class VancedDownloadService: Service() {

    private var downloadId: Long = 0
    private var apkType: String = "arch"

    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
        registerReceiver(receiver, IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE))
        downloadSplits()
        stopSelf()
        return START_NOT_STICKY
    }

    private fun downloadSplits(
        type: String = "arch"
    ) {
        val context = this
        runBlocking {
            launch {
                val defPrefs = PreferenceManager.getDefaultSharedPreferences(context)
                val baseUrl = defPrefs.getString("install_url", baseUrl)
                val vancedVer = getObjectFromJson("$baseUrl/vanced.json", "version")

                val prefs = getSharedPreferences("installPrefs", Context.MODE_PRIVATE)
                val variant = PreferenceManager.getDefaultSharedPreferences(context)
                    .getString("vanced_variant", "nonroot")
                val lang = prefs?.getString("lang", "en")
                val theme = prefs?.getString("theme", "dark")
                val arch =
                    when {
                        Build.SUPPORTED_ABIS.contains("x86") -> "x86"
                        Build.SUPPORTED_ABIS.contains("arm64-v8a") -> "arm64_v8a"
                        else -> "armeabi_v7a"
                    }
                val url =
                    when (type) {
                        "arch" -> "$baseUrl/apks/v$vancedVer/$variant/Arch/split_config.$arch.apk"
                        "theme" -> "$baseUrl/apks/v$vancedVer/$variant/Theme/$theme.apk"
                        "lang" -> "$baseUrl/apks/v$vancedVer/$variant/Language/split_config.$lang.apk"
                        "enlang" -> "$baseUrl/apks/v$vancedVer/$variant/Language/split_config.en.apk"
                        else -> throw NotImplementedError("This type of APK is NOT valid. What the hell did you even do?")
                    }

                apkType = type
                val request = DownloadManager.Request(Uri.parse(url))
                request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI)
                request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE)
                request.setTitle(getString(R.string.downloading_file, "MicroG"))
                request.setDestinationUri(
                    Uri.fromFile(
                        File(
                            "${filesDir.path}/${getFileNameFromUrl(
                                url
                            )}"
                        )
                    )
                )

                val downloadManager = getSystemService(Context.DOWNLOAD_SERVICE) as DownloadManager
                downloadId = downloadManager.enqueue(request)
            }
        }
        /*
        val channel = 69
        PRDownloader
            .download(url, cacheDir.path, getFileNameFromUrl(url))
            .build()
            .setOnStartOrResumeListener { OnStartOrResumeListener { prefs?.edit()?.putBoolean("isVancedDownloading", true)?.apply() } }
            .setOnProgressListener { progress ->
                val mProgress = progress.currentBytes * 100 / progress.totalBytes
                displayDownloadNotif(channel, mProgress.toInt(), getFileNameFromUrl(url), this)
            }
            .start(object : OnDownloadListener {
                override fun onDownloadComplete() {
                    when (type) {
                        "arch" -> downloadSplits("theme")
                        "theme" -> downloadSplits("lang")
                        "lang" -> {
                            if (lang == "en") {
                                prepareInstall(variant!!)
                                cancelNotif(channel, this@VancedDownloadService)
                            } else {
                                downloadSplits("enlang")
                            }
                        }
                        "enlang" -> {
                            prepareInstall(variant!!)
                            cancelNotif(channel, this@VancedDownloadService)
                        }
                    }
                }

                override fun onError(error: Error) {
                    createBasicNotif(getString(R.string.error_downloading, "Vanced"), channel, this@VancedDownloadService)
                }
            })
         */
    }

    private val receiver = object : BroadcastReceiver() {
        val prefs = getSharedPreferences("installPrefs", Context.MODE_PRIVATE)
        val variant = PreferenceManager.getDefaultSharedPreferences(this@VancedDownloadService).getString("vanced_variant", "nonroot")
        val lang = prefs?.getString("lang", "en")
        override fun onReceive(context: Context?, intent: Intent?) {
            if (intent?.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, -1) == downloadId) {
                when (apkType) {
                    "arch" -> downloadSplits("theme")
                    "theme" -> downloadSplits("lang")
                    "lang" -> {
                        if (lang == "en") {
                            prepareInstall(variant!!)
                            //cancelNotif(channel, this@VancedDownloadService)
                        } else {
                            downloadSplits("enlang")
                        }
                    }
                    "enlang" -> {
                        prepareInstall(variant!!)
                        //cancelNotif(channel, this@VancedDownloadService)
                    }
                }
            }
        }
    }

    private fun prepareInstall(variant: String) {
        val intent = Intent(HomeFragment.VANCED_DOWNLOADED)
        intent.action = HomeFragment.VANCED_DOWNLOADED
        LocalBroadcastManager.getInstance(this).sendBroadcast(intent)
        if (variant == "root")
            startService(Intent(this, RootSplitInstallerService::class.java))
        else
            startService(Intent(this, SplitInstaller::class.java))
    }

    override fun onDestroy() {
        super.onDestroy()
        cancelNotif(69, this)
        unregisterReceiver(receiver)
    }

    override fun onBind(intent: Intent?): IBinder? {
        return null
    }

}