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bot/event_modules/interactionCreate/interactionHandler.js

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+class MessageHandler {
+    constructor (client) {
+        this.client = client;
+    }
+
+    async handle (message) {
+        // Ignore messages from bots, and messages in DM's
+        if (message.author.bot) return;
+        if (!message.guild) return;
+
+        // Request all the data we need from the database
+        const data = {};
+        data.user = await this.client.db.getUser(message.author.id);
+        data.guild = await this.client.db.getGuild(message.guild.id);
+        data.member = await this.client.db.getMember(message.guild.id, message.author.id);
+        
+        // Ignore users on the guild blocklist
+        if (data.guild.blocklist.includes(message.author.id)) return;
+
+        // If a user pings Woomy, respond to them with the prefixes they can use
+        if (message.content === `<@${this.client.user.id}>` || message.content === `<@!${this.client.user.id}>`) {
+            return message.channel.send(
+                `Hi! The prefix for this server is \`${data.guild.prefix}\`, and your personal prefix is \`${data.user.prefix}\`. You can also ping me ^-^`
+            );
+        }
+
+        // All the prefixes Woomy will respond to
+        const prefixes = [
+            data.user.prefix,
+            data.guild.prefix,
+            `<@${this.client.user.id}> `,
+            `<@!${this.client.user.id}> `
+        ];
+
+        let prefix;
+
+        // Check the message content to see if it starts with one of our prefixes
+        for (const thisPrefix of prefixes) {
+            if (message.content.startsWith(thisPrefix)) {
+                prefix = thisPrefix;
+                break;
+            }
+        }
+
+        // Ignore the message if it doesn't start with a valid prefix
+        if (!prefix) return;
+
+        // Save prefix so we can use it later (mostly for help command)
+        if (prefix === `<@${this.client.user.id}> ` || prefix === `<@!${this.client.user.id}> `) {
+            message.prefix = '@Woomy ';
+        } else (message.prefix = prefix);
+
+        // Turn the message content into an array (excluding the prefix)
+        const args = message.content.slice(prefix.length).trim().split(/ +/g);
+
+        // Find the command
+        const commandName = args.shift().toLowerCase();
+        const command = this.client.commands.get(commandName) || this.client.commands.get(this.client.aliases.get(commandName));
+    
+        // Return if a command (or its aliases) are not found
+        if (!command) return;
+
+        // Both of these blocks check if the command is disabled/in a disabled category
+        if (data.guild.disabledcommands.includes(command.name)) return message.channel.send(
+            this.client.config.emojis.permError + ' This command has been disabled by a server administrator.'
+        );
+
+        if (data.guild.disabledcategories.includes(command.category)) return message.channel.send(
+            this.client.config.emojis.permError + ' The category this command is apart of has been disabled by a server administrator.'
+        );
+
+        // Both of these blocks check the permissions of the user, and reply with missing perms if any are found
+        const missingUserPerms = this.client.functions.checkPermissions(message.channel, message.author.id, command.userPerms);
+        if (missingUserPerms) return message.channel.send(
+            `${this.client.config.emojis.permError} You can't use this command because you lack these permissions: \`${missingUserPerms.join('`, `')}\``
+        );
+
+        const missingBotPerms = this.client.functions.checkPermissions(message.channel, this.client.user.id, command.botPerms);
+        if (missingBotPerms) return message.channel.send(
+            `${this.client.config.emojis.permError} I can't run this command because I lack these permissions: \`${missingBotPerms.join('`, `')}\``
+        );
+
+        // Return if the command is disabled globally
+        if (command.enabled === false) return message.channel.send(
+            this.client.config.emojis.permError + ' This command has been disabled by my developers.'
+        );
+        
+        // Return if the command is restricted to developers (and the user is not a developer)
+        if (command.devOnly === true && this.client.config.ownerIDs.includes(message.author.id) !== true) {
+            return message.channel.send(
+                `${this.client.config.emojis.permError} ${message.author.username} is not in the sudoers file. This incident will be reported.`
+            );
+        } 
+
+        // Cooldown
+        if (this.client.cooldowns.get(command.name).has(message.author.id)) {
+            const timestamp = this.client.cooldowns.get(command.name).get(message.author.id);
+            const currentTime = Date.now();
+            const cooldown = command.cooldown / 1000;
+            const timePassed = Math.floor((currentTime - timestamp) / 1000);
+            return message.channel.send(
+                `${this.client.config.emojis.wait} ${message.author.mention}, you need to wait ${cooldown - timePassed} seconds before using this command again.`
+            );
+        } else {
+            this.client.cooldowns.get(command.name).set(message.author.id, new Date());
+            setTimeout(() => {
+                this.client.cooldowns.get(command.name).delete(message.author.id);
+            }, this.client.commands.get(command.name).cooldown);
+        }
+
+        try {
+            command.run(this.client, message, args, data);
+            this.client.logger.command(`Ran ${command.name}`);
+        } catch (error) {
+            this.client.logger.error('COMMAND_EXECUTION_ERROR', `${command.name}: ${error.stack}`);
+            message.channel.send(`${this.client.config.emojis.botError} An error occured when I was trying to run this command. I've sent through the details of the error to my developers.`);
+        }
+    }
+}
+
+module.exports = MessageHandler;