Added welcome message and system logs channel

src/commands/admin.ts

@@ -102,8 +102,18 @@ export default new Command({
                         }),
                         channel: new Command({
                             description: "Sets the welcome channel for your server. Type `#` to reference the channel.",
-                            usage: "<channel mention>",
-                            run: "You need to specify a channel.",
+                            usage: "(<channel mention>)",
+                            async run($) {
+                                if ($.guild) {
+                                    Storage.getGuild($.guild.id).welcomeChannel = $.channel.id;
+                                    Storage.save();
+                                    $.channel.send(
+                                        `Successfully set ${$.channel} as the welcome channel for this server.`
+                                    );
+                                } else {
+                                    $.channel.send("You must use this command in a server.");
+                                }
+                            },
                             // If/when channel types come out, this will be the perfect candidate to test it.
                             any: new Command({
                                 async run($) {
@@ -126,6 +136,32 @@ export default new Command({
                                     }
                                 }
                             })
+                        }),
+                        message: new Command({
+                            description:
+                                "Sets a custom welcome message for your server. Use `%user%` as the placeholder for the user.",
+                            usage: "(<message>)",
+                            async run($) {
+                                if ($.guild) {
+                                    Storage.getGuild($.guild.id).welcomeMessage = null;
+                                    Storage.save();
+                                    $.channel.send("Reset your server's welcome message to the default.");
+                                } else {
+                                    $.channel.send("You must use this command in a server.");
+                                }
+                            },
+                            any: new Command({
+                                async run($) {
+                                    if ($.guild) {
+                                        const message = $.args.join(" ");
+                                        Storage.getGuild($.guild.id).welcomeMessage = message;
+                                        Storage.save();
+                                        $.channel.send(`Set your server's welcome message to \`${message}\`.`);
+                                    } else {
+                                        $.channel.send("You must use this command in a server.");
+                                    }
+                                }
+                            })
                         })
                     }
                 })
@@ -275,6 +311,19 @@ export default new Command({
                         );
                 }
             })
+        }),
+        syslog: new Command({
+            description: "Sets up the current channel to receive system logs.",
+            permission: Command.PERMISSIONS.BOT_ADMIN,
+            async run($) {
+                if ($.guild) {
+                    Config.systemLogsChannel = $.channel.id;
+                    Config.save();
+                    $.channel.send(`Successfully set ${$.channel} as the system logs channel.`);
+                } else {
+                    $.channel.send("DM system log channels aren't supported.");
+                }
+            }
         })
     }
 });

src/core/structures.ts

@@ -3,12 +3,15 @@ import $, {select, GenericJSON, GenericStructure} from "./lib";
 import {watch} from "fs";
 import {Guild as DiscordGuild, Snowflake} from "discord.js";
 
+// Maybe use getters and setters to auto-save on set?
+
 class ConfigStructure extends GenericStructure {
     public token: string;
     public prefix: string;
     public owner: string;
     public admins: string[];
     public support: string[];
+    public systemLogsChannel: string | null;
 
     constructor(data: GenericJSON) {
         super("config");
@@ -17,6 +20,7 @@ class ConfigStructure extends GenericStructure {
         this.owner = select(data.owner, "", String);
         this.admins = select(data.admins, [], String, true);
         this.support = select(data.support, [], String, true);
+        this.systemLogsChannel = select(data.systemLogsChannel, null, String);
     }
 }
 
@@ -53,10 +57,12 @@ class Guild {
     public prefix: string | null;
     public welcomeType: "none" | "text" | "graphical";
     public welcomeChannel: string | null;
+    public welcomeMessage: string | null;
 
     constructor(data?: GenericJSON) {
         this.prefix = select(data?.prefix, null, String);
         this.welcomeChannel = select(data?.welcomeChannel, null, String);
+        this.welcomeMessage = select(data?.welcomeMessage, null, String);
 
         switch (data?.welcomeType) {
             case "text":

src/events/guildCreate.ts

@@ -1,6 +1,9 @@
 import Event from "../core/event";
 import $ from "../core/lib";
 import {updateGlobalEmoteRegistry} from "../core/lib";
+import {client} from "../index";
+import {Config} from "../core/structures";
+import {TextChannel} from "discord.js";
 
 export default new Event<"guildCreate">({
     on(guild) {
@@ -9,6 +12,21 @@ export default new Event<"guildCreate">({
                 guild.owner!.user.id
             }). Updated emote registry.`
         );
+
+        if (Config.systemLogsChannel) {
+            const channel = client.channels.cache.get(Config.systemLogsChannel);
+
+            if (channel && channel.type === "text") {
+                (channel as TextChannel).send(
+                    `TravBot joined: \`${guild.name}\`. The owner of this guild is: \`${guild.owner!.user.tag}\` (\`${
+                        guild.owner!.user.id
+                    }\`)`
+                );
+            } else {
+                console.warn(`${Config.systemLogsChannel} is not a valid text channel for system logs!`);
+            }
+        }
+
         updateGlobalEmoteRegistry();
     }
 });

src/events/guildDelete.ts

@@ -1,10 +1,24 @@
 import Event from "../core/event";
 import $ from "../core/lib";
 import {updateGlobalEmoteRegistry} from "../core/lib";
+import {client} from "../index";
+import {Config} from "../core/structures";
+import {TextChannel} from "discord.js";
 
 export default new Event<"guildDelete">({
     on(guild) {
         $.log(`[GUILD LEAVE] ${guild.name} (${guild.id}) removed the bot. Updated emote registry.`);
+
+        if (Config.systemLogsChannel) {
+            const channel = client.channels.cache.get(Config.systemLogsChannel);
+
+            if (channel && channel.type === "text") {
+                (channel as TextChannel).send(`\`${guild.name}\` (\`${guild.id}\`) removed the bot.`);
+            } else {
+                console.warn(`${Config.systemLogsChannel} is not a valid text channel for system logs!`);
+            }
+        }
+
         updateGlobalEmoteRegistry();
     }
 });

src/events/guildMemberAdd.ts

@@ -17,7 +17,7 @@ function applyText(canvas: Canvas, text: string) {
 
 export default new Event<"guildMemberAdd">({
     async on(member) {
-        const {welcomeType, welcomeChannel} = Storage.getGuild(member.guild.id);
+        const {welcomeType, welcomeChannel, welcomeMessage} = Storage.getGuild(member.guild.id);
 
         if (welcomeChannel) {
             const channel = member.guild.channels.cache.get(welcomeChannel);
@@ -60,9 +60,13 @@ export default new Event<"guildMemberAdd">({
                     (channel as TextChannel).send(`Welcome \`${member.user.tag}\`!`, attachment);
                 } else if (welcomeType === "text") {
                     (channel as TextChannel).send(
-                        parseVars("Say hello to `%user%`, everyone! We all need a warm welcome sometimes :D", {
-                            user: member.user.tag
-                        })
+                        parseVars(
+                            welcomeMessage ||
+                                "Say hello to `%user%`, everyone! We all need a warm welcome sometimes :D",
+                            {
+                                user: member.user.tag
+                            }
+                        )
                     );
                 }
             } else {