Added auto-translate language feature (~atl and ~at)

src/NadekoBot/Modules/Searches/Commands/Translator.cs

@@ -6,11 +6,68 @@ using System;
 using System.Threading.Tasks;
 using NadekoBot.Services;
 using Discord.WebSocket;
+using System.Collections.Generic;
+using System.Collections.Concurrent;
+using System.Linq;
 
 namespace NadekoBot.Modules.Searches
 {
     public partial class Searches
     {
+        public struct UserChannelPair
+        {
+            public ulong UserId { get; set; }
+            public ulong ChannelId { get; set; }
+        }
+
+        [Group]
+        public class TranslateCommands
+        {
+            private static ConcurrentDictionary<ulong, bool> TranslatedChannels { get; }
+            private static ConcurrentDictionary<UserChannelPair, string> UserLanguages { get; }
+
+            static TranslateCommands()
+            {
+                TranslatedChannels = new ConcurrentDictionary<ulong, bool>();
+                UserLanguages = new ConcurrentDictionary<UserChannelPair, string>();
+
+                NadekoBot.Client.MessageReceived += (msg) =>
+                {
+                    var umsg = msg as IUserMessage;
+                    if(umsg == null)
+                        return Task.CompletedTask;
+
+                    bool autoDelete;
+                    if (!TranslatedChannels.TryGetValue(umsg.Channel.Id, out autoDelete))
+                        return Task.CompletedTask;
+
+                    var t = Task.Run(async () =>
+                    {
+                        var key = new UserChannelPair()
+                        {
+                            UserId = umsg.Author.Id,
+                            ChannelId = umsg.Channel.Id,
+                        };
+
+                        string langs;
+                        if (!UserLanguages.TryGetValue(key, out langs))
+                            return;
+
+                        try
+                        {
+                            var text = await TranslateInternal(umsg, langs, umsg.Resolve(UserMentionHandling.Ignore), true)
+                                                .ConfigureAwait(false);
+                            if (autoDelete)
+                                try { await umsg.DeleteAsync().ConfigureAwait(false); } catch { }
+                            await umsg.Channel.SendMessageAsync($"{umsg.Author.Mention} `said:` "+text.Replace("<@ ", "<@").Replace("<@! ", "<@!")).ConfigureAwait(false);
+                        }
+                        catch { }
+
+                    });
+                    return Task.CompletedTask;
+                };
+            }
+
             [NadekoCommand, Usage, Description, Aliases]
             [RequireContext(ContextType.Guild)]
             public async Task Translate(IUserMessage umsg, string langs, [Remainder] string text = null)
@@ -18,25 +75,97 @@ namespace NadekoBot.Modules.Searches
                 var channel = (ITextChannel)umsg.Channel;
 
                 try
+                {
+                    await umsg.Channel.TriggerTypingAsync().ConfigureAwait(false);
+                    var translation = await TranslateInternal(umsg, langs, text);
+                    await channel.SendMessageAsync(translation).ConfigureAwait(false);
+
+                }
+                catch
+                {
+                    await channel.SendMessageAsync("Bad input format, or something went wrong...").ConfigureAwait(false);
+                }
+            }
+
+            private static async Task<string> TranslateInternal(IUserMessage umsg, string langs, [Remainder] string text = null, bool silent = false)
             {
                 var langarr = langs.ToLowerInvariant().Split('>');
                 if (langarr.Length != 2)
-                    return;
+                    throw new ArgumentException();
                 string from = langarr[0];
                 string to = langarr[1];
                 text = text?.Trim();
                 if (string.IsNullOrWhiteSpace(text))
-                    return;
+                    throw new ArgumentException();
+                return await GoogleTranslator.Instance.Translate(text, from, to).ConfigureAwait(false);
+            }
 
-                await umsg.Channel.TriggerTypingAsync().ConfigureAwait(false);
-                string translation = await GoogleTranslator.Instance.Translate(text, from, to).ConfigureAwait(false);
-                await channel.SendMessageAsync(translation).ConfigureAwait(false);
-            }
-            catch (Exception ex)
+            public enum AutoDeleteAutoTranslate
             {
-                Console.WriteLine(ex);
-                await channel.SendMessageAsync("Bad input format, or something went wrong...").ConfigureAwait(false);
+                Del,
+                Nodel
             }
+
+            [NadekoCommand, Usage, Description, Aliases]
+            [RequireContext(ContextType.Guild)]
+            [RequirePermission(GuildPermission.Administrator)]
+            [OwnerOnly]
+            public async Task AutoTranslate(IUserMessage msg, AutoDeleteAutoTranslate autoDelete = AutoDeleteAutoTranslate.Nodel)
+            {
+                var channel = (ITextChannel)msg.Channel;
+
+                if (autoDelete == AutoDeleteAutoTranslate.Del)
+                {
+                    TranslatedChannels.AddOrUpdate(channel.Id, true, (key, val) => true);
+                    try { await channel.SendMessageAsync("`Started automatic translation of messages on this channel. User messages will be auto-deleted.`").ConfigureAwait(false); } catch { }
+                    return;
+                }
+
+                bool throwaway;
+                if (TranslatedChannels.TryRemove(channel.Id, out throwaway))
+                {
+                    try { await channel.SendMessageAsync("`Stopped automatic translation of messages on this channel.`").ConfigureAwait(false); } catch { }
+                    return;
+                }
+                else if (TranslatedChannels.TryAdd(channel.Id, autoDelete == AutoDeleteAutoTranslate.Del))
+                {
+                    try { await channel.SendMessageAsync("`Started automatic translation of messages on this channel.`").ConfigureAwait(false); } catch { }
+                }
+            }
+
+            [NadekoCommand, Usage, Description, Aliases]
+            [RequireContext(ContextType.Guild)]
+            public async Task AutoTransLang(IUserMessage msg, [Remainder] string langs = null)
+            {
+                var channel = (ITextChannel)msg.Channel;
+
+                var ucp = new UserChannelPair
+                {
+                    UserId = msg.Author.Id,
+                    ChannelId = msg.Channel.Id,
+                };
+
+                if (string.IsNullOrWhiteSpace(langs))
+                {
+                    if (UserLanguages.TryRemove(ucp, out langs))
+                        await channel.SendMessageAsync($"{msg.Author.Mention}'s auto-translate language has been removed.").ConfigureAwait(false);
+                    return;
+                }
+
+                var langarr = langs.ToLowerInvariant().Split('>');
+                if (langarr.Length != 2)
+                    return;
+                var from = langarr[0];
+                var to = langarr[1];
+
+                if (!GoogleTranslator.Instance.Languages.Contains(from) || !GoogleTranslator.Instance.Languages.Contains(to))
+                {
+                    try { await channel.SendMessageAsync("`Invalid source and/or target Language.`").ConfigureAwait(false); } catch { }
+                }
+
+                UserLanguages.AddOrUpdate(ucp, langs, (key, val) => langs);
+
+                await channel.SendMessageAsync(":ok:").ConfigureAwait(false);
             }
 
             [NadekoCommand, Usage, Description, Aliases]
@@ -50,3 +179,4 @@ namespace NadekoBot.Modules.Searches
 
         }
     }
+}

src/NadekoBot/Resources/CommandStrings.Designer.cs

@@ -519,7 +519,61 @@ namespace NadekoBot.Resources {
         }
         
         /// <summary>
-        ///    Looks up a localized string similar to av avatar.
+        ///    Looks up a localized string similar to autotranslang atl.
+        /// </summary>
+        public static string autotranslang_cmd {
+            get {
+                return ResourceManager.GetString("autotranslang_cmd", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to `{0}atl en&gt;fr`.
+        /// </summary>
+        public static string autotranslang_desc {
+            get {
+                return ResourceManager.GetString("autotranslang_desc", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Sets your source and target language to be used with `{0}at`. Specify no arguments to remove previously set value..
+        /// </summary>
+        public static string autotranslang_usage {
+            get {
+                return ResourceManager.GetString("autotranslang_usage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to autotrans at.
+        /// </summary>
+        public static string autotranslate_cmd {
+            get {
+                return ResourceManager.GetString("autotranslate_cmd", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Starts automatic translation of all messages by users who set their `{0}atl` in this channel. You can set &quot;del&quot; argument to automatically delete all translated user messages..
+        /// </summary>
+        public static string autotranslate_desc {
+            get {
+                return ResourceManager.GetString("autotranslate_desc", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to `{0}at` or `{0}at del`.
+        /// </summary>
+        public static string autotranslate_usage {
+            get {
+                return ResourceManager.GetString("autotranslate_usage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to avatar av.
         /// </summary>
         public static string avatar_cmd {
             get {

src/NadekoBot/Resources/CommandStrings.resx

@@ -2089,7 +2089,7 @@
     <value>`{0}videocall "@SomeGuy"`</value>
   </data>
   <data name="avatar_cmd" xml:space="preserve">
-    <value>av avatar</value>
+    <value>avatar av</value>
   </data>
   <data name="avatar_desc" xml:space="preserve">
     <value>Shows a mentioned person's avatar.</value>
@@ -2547,4 +2547,22 @@
   <data name="publicpoll_usage" xml:space="preserve">
     <value>`{0}ppoll Question?;Answer1;Answ 2;A_3`</value>
   </data>
+  <data name="autotranslang_cmd" xml:space="preserve">
+    <value>autotranslang atl</value>
+  </data>
+  <data name="autotranslang_desc" xml:space="preserve">
+    <value>`{0}atl en&gt;fr`</value>
+  </data>
+  <data name="autotranslang_usage" xml:space="preserve">
+    <value>Sets your source and target language to be used with `{0}at`. Specify no arguments to remove previously set value.</value>
+  </data>
+  <data name="autotranslate_cmd" xml:space="preserve">
+    <value>autotrans at</value>
+  </data>
+  <data name="autotranslate_desc" xml:space="preserve">
+    <value>Starts automatic translation of all messages by users who set their `{0}atl` in this channel. You can set "del" argument to automatically delete all translated user messages.</value>
+  </data>
+  <data name="autotranslate_usage" xml:space="preserve">
+    <value>`{0}at` or `{0}at del`</value>
+  </data>
 </root>