Addons (#368)

* feat: (wip) torrent

credit to kuukiyomi

* fix: extensions -> addons

* fix: unified loader

* feat: (wip) modularity

* fix: addon ui

* feat: addon install/uninstall

---------

Co-authored-by: aayush262 <aayushthakur262006@gmail.com>

app/src/main/java/ani/dantotsu/addons/AddonDownloader.kt

@@ -0,0 +1,145 @@
+package ani.dantotsu.addons
+
+import android.annotation.SuppressLint
+import android.app.Activity
+import android.app.DownloadManager
+import android.app.NotificationManager
+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.Environment
+import androidx.core.content.ContextCompat
+import androidx.core.content.getSystemService
+import androidx.core.net.toUri
+import ani.dantotsu.BuildConfig
+import ani.dantotsu.Mapper
+import ani.dantotsu.R
+import ani.dantotsu.client
+import ani.dantotsu.logError
+import ani.dantotsu.media.MediaType
+import ani.dantotsu.openLinkInBrowser
+import ani.dantotsu.others.AppUpdater
+import ani.dantotsu.settings.InstallerSteps
+import ani.dantotsu.toast
+import ani.dantotsu.util.Logger
+import eu.kanade.tachiyomi.extension.InstallStep
+import eu.kanade.tachiyomi.extension.util.ExtensionInstaller
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.MainScope
+import kotlinx.coroutines.launch
+import kotlinx.serialization.json.JsonArray
+import kotlinx.serialization.json.decodeFromJsonElement
+import rx.Observable
+import rx.android.schedulers.AndroidSchedulers
+
+class AddonDownloader {
+    companion object {
+        private suspend fun check(repo: String): Pair<String, String> {
+            return try {
+                val res = client.get("https://api.github.com/repos/$repo/releases")
+                    .parsed<JsonArray>().map {
+                        Mapper.json.decodeFromJsonElement<AppUpdater.GithubResponse>(it)
+                    }
+                val r = res.maxByOrNull {
+                        it.timeStamp()
+                    } ?: throw Exception("No Pre Release Found")
+                val v = r.tagName.substringAfter("v", "")
+                val md = r.body ?: ""
+                val version = v.ifEmpty { throw Exception("Weird Version : ${r.tagName}") }
+
+                Logger.log("Git Version : $version")
+                Pair(md, version)
+            } catch (e: Exception) {
+                Logger.log("Error checking for update")
+                Logger.log(e)
+                Pair("", "")
+            }
+        }
+
+        suspend fun hasUpdate(repo: String, currentVersion: String): Boolean {
+            val (_, version) = check(repo)
+            return compareVersion(version, currentVersion)
+        }
+
+        suspend fun update(
+            activity: Activity,
+            manager: AddonManager<*>,
+            repo: String,
+            currentVersion: String
+        ) {
+            val (_, version) = check(repo)
+            if (!compareVersion(version, currentVersion)) {
+                toast(activity.getString(R.string.no_update_found))
+                return
+            }
+            MainScope().launch(Dispatchers.IO) {
+                try {
+                    val apks =
+                        client.get("https://api.github.com/repos/$repo/releases/tags/v$version")
+                            .parsed<AppUpdater.GithubResponse>().assets?.filter {
+                                it.browserDownloadURL.endsWith(
+                                    ".apk"
+                                )
+                            }
+                    val apkToDownload =
+                        apks?.find { it.browserDownloadURL.contains(getCurrentABI()) }
+                            ?: apks?.find { it.browserDownloadURL.contains("universal") }
+                            ?: apks?.first()
+                    apkToDownload?.browserDownloadURL.apply {
+                        if (this != null) {
+                            val notificationManager =
+                                activity.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+                            val installerSteps = InstallerSteps(notificationManager, activity)
+                            manager.install(this)
+                                .observeOn(AndroidSchedulers.mainThread())
+                                .observeOn(AndroidSchedulers.mainThread())
+                                .subscribe(
+                                    { installStep -> installerSteps.onInstallStep(installStep) {} },
+                                    { error -> installerSteps.onError(error) {} },
+                                    { installerSteps.onComplete {} }
+                                )
+                        }
+                        else openLinkInBrowser("https://github.com/repos/$repo/releases/tag/v$version")
+                    }
+                } catch (e: Exception) {
+                    logError(e)
+                }
+            }
+        }
+
+        /**
+         * Returns the ABI that the app is most likely running on.
+         * @return The primary ABI for the device.
+         */
+        private fun getCurrentABI(): String {
+            return if (Build.SUPPORTED_ABIS.isNotEmpty()) {
+                Build.SUPPORTED_ABIS[0]
+            } else "Unknown"
+        }
+
+        private fun compareVersion(newVersion: String, oldVersion: String): Boolean {
+            fun toDouble(list: List<String>): Double {
+                return try {
+                    list.mapIndexed { i: Int, s: String ->
+                        when (i) {
+                            0 -> s.toDouble() * 100
+                            1 -> s.toDouble() * 10
+                            2 -> s.toDouble()
+                            else -> s.toDoubleOrNull() ?: 0.0
+                        }
+                    }.sum()
+                } catch (e: NumberFormatException) {
+                    0.0
+                }
+            }
+
+            val new = toDouble(newVersion.split("."))
+            val curr = toDouble(oldVersion.split("."))
+            return new > curr
+        }
+
+    }
+}