feat(gui): remote duplicate servers

app/src/main/java/io/nekohasekai/sagernet/group/RawUpdater.kt

@@ -91,7 +91,7 @@ object RawUpdater : GroupUpdater() {
             val uniqueProxies = LinkedHashSet<Protocols.Deduplication>()
             val uniqueNames = HashMap<Protocols.Deduplication, String>()
             for (_proxy in proxies) {
-                val proxy = Protocols.Deduplication(_proxy)
+                val proxy = Protocols.Deduplication(_proxy, _proxy.javaClass.toString())
                 if (!uniqueProxies.add(proxy)) {
                     val index = uniqueProxies.indexOf(proxy)
                     if (uniqueNames.containsKey(proxy)) {

app/src/main/java/io/nekohasekai/sagernet/ui/ConfigurationFragment.kt

@@ -466,6 +466,57 @@ class ConfigurationFragment @JvmOverloads constructor(
                     }
                 }
             }
+            R.id.action_remove_duplicate -> {
+                runOnDefaultDispatcher {
+                    val profiles = SagerDatabase.proxyDao.getByGroup(DataStore.currentGroupId())
+                    val toClear = mutableListOf<ProxyEntity>()
+                    val uniqueProxies = LinkedHashSet<Protocols.Deduplication>()
+                    for (pf in profiles) {
+                        val proxy = Protocols.Deduplication(pf.requireBean(), pf.displayType())
+                        if (!uniqueProxies.add(proxy)) {
+                            toClear += pf
+                        }
+                    }
+                    if (toClear.isNotEmpty()) {
+                        onMainDispatcher {
+                            MaterialAlertDialogBuilder(requireContext()).setTitle(R.string.confirm)
+                                .setMessage(
+                                    getString(R.string.delete_confirm_prompt) + "\n" +
+                                            toClear.mapIndexedNotNull { index, proxyEntity ->
+                                                if (index < 20) {
+                                                    proxyEntity.displayName()
+                                                } else if (index == 20) {
+                                                    "......"
+                                                } else {
+                                                    null
+                                                }
+                                            }.joinToString("\n")
+                                )
+                                .setPositiveButton(R.string.yes) { _, _ ->
+                                    for (profile in toClear) {
+                                        adapter.groupFragments[DataStore.selectedGroup]?.adapter?.apply {
+                                            val index = configurationIdList.indexOf(profile.id)
+                                            if (index >= 0) {
+                                                configurationIdList.removeAt(index)
+                                                configurationList.remove(profile.id)
+                                                notifyItemRemoved(index)
+                                            }
+                                        }
+                                    }
+                                    runOnDefaultDispatcher {
+                                        for (profile in toClear) {
+                                            ProfileManager.deleteProfile2(
+                                                profile.groupId, profile.id
+                                            )
+                                        }
+                                    }
+                                }
+                                .setNegativeButton(R.string.no, null)
+                                .show()
+                        }
+                    }
+                }
+            }
             R.id.action_connection_icmp_ping -> {
                 pingTest(true)
             }

app/src/main/java/moe/matsuri/nb4a/Protocols.kt

@@ -34,11 +34,11 @@ object Protocols {
     // Deduplication
 
     class Deduplication(
-        val bean: AbstractBean
+        val bean: AbstractBean, val type: String
     ) {
 
         fun hash(): String {
-            return bean.serverAddress + bean.serverPort
+            return bean.serverAddress + bean.serverPort + type
         }
 
         override fun hashCode(): Int {

app/src/main/res/menu/add_profile_menu.xml

@@ -86,6 +86,9 @@
             <item
                 android:id="@+id/action_clear_traffic_statistics"
                 android:title="@string/clear_traffic_statistics" />
+            <item
+                android:id="@+id/action_remove_duplicate"
+                android:title="@string/remove_duplicate" />
             <item
                 android:id="@+id/action_connection_test"
                 android:title="@string/connection_test">

app/src/main/res/values-zh-rCN/strings.xml

@@ -469,4 +469,5 @@
     <string name="share_subscription">分享订阅</string>
     <string name="show_group_in_notification">在通知中显示组名</string>
     <string name="reset_connections">重置连接</string>
+    <string name="remove_duplicate">删除重复的服务器</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -510,5 +510,6 @@ Anyone can write advanced plugins, which can control NekoBox. please download an
     <string name="share_subscription">Share Subscription</string>
     <string name="show_group_in_notification">Show group name in in notification</string>
     <string name="reset_connections">Reset Connections</string>
+    <string name="remove_duplicate">Remove duplicate servers</string>
 
 </resources>