anti auto download

app/src/main/kotlin/me/rhunk/snapenhance/features/impl/downloader/AntiAutoDownload.kt

@@ -0,0 +1,55 @@
+package me.rhunk.snapenhance.features.impl.downloader
+
+import me.rhunk.snapenhance.bridge.common.impl.FileAccessRequest
+import me.rhunk.snapenhance.features.Feature
+import me.rhunk.snapenhance.features.FeatureLoadParams
+import java.io.BufferedReader
+import java.io.ByteArrayInputStream
+import java.io.InputStreamReader
+import java.nio.charset.StandardCharsets
+
+class AntiAutoDownload : Feature("AntiAutoDownload", loadParams = FeatureLoadParams.ACTIVITY_CREATE_SYNC) {
+    private val excludedUsers = mutableListOf<String>()
+
+    override fun onActivityCreate() {
+        readExclusionFile()
+    }
+
+    private fun readExclusionFile() {
+        val userIds = mutableListOf<String>()
+        val exclusionFileData: ByteArray = context.bridgeClient.createAndReadFile(FileAccessRequest.FileType.ANTI_AUTO_DOWNLOAD, ByteArray(0))
+        with(BufferedReader(InputStreamReader(ByteArrayInputStream(exclusionFileData), StandardCharsets.UTF_8))) {
+            var line = ""
+            while (readLine()?.also { line = it } != null) userIds.add(line)
+            close()
+        }
+        excludedUsers.clear()
+        excludedUsers.addAll(userIds)
+    }
+
+    private fun writeExclusionFile() {
+        val sb = StringBuilder()
+        excludedUsers.forEach {
+            sb.append(it).append("\n")
+        }
+        context.bridgeClient.writeFile(
+            FileAccessRequest.FileType.ANTI_AUTO_DOWNLOAD,
+            sb.toString().toByteArray(Charsets.UTF_8)
+        )
+    }
+
+    fun setUserIgnored(userId: String, state: Boolean) {
+        userId.hashCode().toLong().toString(16).let {
+            if (state) {
+                excludedUsers.add(it)
+            } else {
+                excludedUsers.remove(it)
+            }
+        }
+        writeExclusionFile()
+    }
+
+    fun isUserIgnored(userId: String): Boolean {
+        return excludedUsers.contains(userId.hashCode().toLong().toString(16))
+    }
+}