Make bot check channel permissions before sending messages (#161)

src/helpers/embeds/ErrorEmbed.ts

@@ -1,4 +1,4 @@
-import { MessageEmbed } from "discord.js";
+import { MessageEmbed, Permissions, TextChannel } from "discord.js";
 import { ICommandContext } from "../../contracts/ICommandContext";
 
 export default class ErrorEmbed extends MessageEmbed {
@@ -13,7 +13,16 @@ export default class ErrorEmbed extends MessageEmbed {
         this.context = context;
     }
 
-    public SendToCurrentChannel() {
+    public async SendToCurrentChannel() {
+        const channel = this.context.message.channel as TextChannel;
+        const botMember = await this.context.message.guild?.members.fetch({ user: this.context.message.client.user! });
+
+        if (!botMember) return;
+
+        const permissions = channel.permissionsFor(botMember);
+
+        if (!permissions.has(Permissions.FLAGS.SEND_MESSAGES)) return;
+
         this.context.message.channel.send({ embeds: [ this ]});
     }
 }

src/helpers/embeds/EventEmbed.ts

@@ -1,17 +1,20 @@
-import { MessageEmbed, TextChannel, User, Guild } from "discord.js";
+import { MessageEmbed, TextChannel, User, Guild, Client, Permissions } from "discord.js";
 import { ICommandContext } from "../../contracts/ICommandContext";
 import SettingsHelper from "../SettingsHelper";
 
 export default class EventEmbed extends MessageEmbed {
     public guild: Guild;
 
-    constructor(guild: Guild, title: string) {
+    private client: Client;
+
+    constructor(client: Client, guild: Guild, title: string) {
         super();
         
         super.setColor(0x3050ba);
         super.setTitle(title);
 
         this.guild = guild;
+        this.client = client;
     }
 
     // Detail methods
@@ -28,7 +31,7 @@ export default class EventEmbed extends MessageEmbed {
     }
 
     // Send methods
-    public SendToChannel(name: string) {
+    public async SendToChannel(name: string) {
         const channel = this.guild.channels.cache
             .find(channel => channel.name == name) as TextChannel;
         
@@ -37,6 +40,14 @@ export default class EventEmbed extends MessageEmbed {
             return;
         }
 
+        const botMember = await this.guild.members.fetch({ user: this.client.user! });
+
+        if (!botMember) return;
+
+        const permissions = channel.permissionsFor(botMember);
+
+        if (!permissions.has(Permissions.FLAGS.SEND_MESSAGES)) return;
+
         channel.send({embeds: [ this ]});
     }
 

src/helpers/embeds/LogEmbed.ts

@@ -1,4 +1,4 @@
-import { MessageEmbed, TextChannel, User } from "discord.js";
+import { MessageEmbed, Permissions, TextChannel, User } from "discord.js";
 import ErrorMessages from "../../constants/ErrorMessages";
 import { ICommandContext } from "../../contracts/ICommandContext";
 import SettingsHelper from "../SettingsHelper";
@@ -30,7 +30,16 @@ export default class LogEmbed extends MessageEmbed {
     }
 
     // Send methods
-    public SendToCurrentChannel() {
+    public async SendToCurrentChannel() {
+        const channel = this.context.message.channel as TextChannel;
+        const botMember = await this.context.message.guild?.members.fetch({ user: this.context.message.client.user! });
+
+        if (!botMember) return;
+
+        const permissions = channel.permissionsFor(botMember);
+
+        if (!permissions.has(Permissions.FLAGS.SEND_MESSAGES)) return;
+
         this.context.message.channel.send({ embeds: [ this ]});
     }
 

src/helpers/embeds/PublicEmbed.ts

@@ -1,4 +1,4 @@
-import { MessageEmbed } from "discord.js";
+import { MessageEmbed, Permissions, TextChannel } from "discord.js";
 import { ICommandContext } from "../../contracts/ICommandContext";
 
 export default class PublicEmbed extends MessageEmbed {
@@ -20,7 +20,16 @@ export default class PublicEmbed extends MessageEmbed {
     }
 
     // Send methods
-    public SendToCurrentChannel() {
+    public async SendToCurrentChannel() {
+        const channel = this.context.message.channel as TextChannel;
+        const botMember = await this.context.message.guild?.members.fetch({ user: this.context.message.client.user! });
+
+        if (!botMember) return;
+
+        const permissions = channel.permissionsFor(botMember);
+
+        if (!permissions.has(Permissions.FLAGS.SEND_MESSAGES)) return;
+
         this.context.message.channel.send({ embeds: [ this ]});
     }
 }