const Command = require("../../base/Command.js"),
	Discord = require("discord.js");

class Help extends Command {
	constructor (client) {
		super(client, {
			name: "help",
			dirname: __dirname,
			enabled: true,
			guildOnly: false,
			aliases: [ "aide", "h", "commands" ],
			memberPermissions: [],
			botPermissions: [ "SEND_MESSAGES", "EMBED_LINKS" ],
			nsfw: false,
			ownerOnly: false,
			cooldown: 2000
		});
	}

	async run (message, args, data) {
		// if a command is provided
		if (args[0]) {
			const isCustom = (message.guild && data.guild.customCommands ? data.guild.customCommands.find((c) => c.name === args[0]) : false);

			// if the command doesn't exist, error message
			const cmd = this.client.commands.get(args[0]) || this.client.commands.get(this.client.aliases.get(args[0]));
			if (!cmd && isCustom) {
				return message.error("general/help:CUSTOM", { cmd: args[0] });
			} else if (!cmd) {
				return message.error("general/help:NOT_FOUND", { search: args[0] });
			};

			const description = message.translate(`${cmd.help.category.toLowerCase()}/${cmd.help.name}:DESCRIPTION`);
			const usage = message.translate(`${cmd.help.category.toLowerCase()}/${cmd.help.name}:USAGE`, { prefix: message.guild ? data.guild.prefix : "" });
			const examples = message.translate(`${cmd.help.category.toLowerCase()}/${cmd.help.name}:EXAMPLES`, { prefix: message.guild ? data.guild.prefix : "" });

			// Creates the help embed
			const groupEmbed = new Discord.MessageEmbed()
				.setAuthor(message.translate("general/help:CMD_TITLE", { prefix: message.guild ? data.guild.prefix : "", cmd: cmd.help.name }))
				.addField(message.translate("general/help:FIELD_DESCRIPTION"), description)
				.addField(message.translate("general/help:FIELD_USAGE"), usage)
				.addField(message.translate("general/help:FIELD_EXAMPLES"), examples)
				.addField(message.translate("general/help:FIELD_ALIASES"), cmd.help.aliases.length > 0 ? cmd.help.aliases.map(a => "`" + a + "`").join("\n") : message.translate("general/help:NO_ALIAS"))
				.addField(message.translate("general/help:FIELD_PERMISSIONS"), cmd.conf.memberPermissions.length > 0 ? cmd.conf.memberPermissions.map((p) => `\`${p}\``).join("\n") : message.translate("general/help:NO_REQUIRED_PERMISSION"))
				.setColor(this.client.config.embed.color)
				.setFooter(this.client.config.embed.footer);

			// and send the embed in the current channel
			return message.channel.send(groupEmbed);
		};

		const categories = [];
		const commands = this.client.commands;

		commands.forEach((command) => {
			if (!categories.includes(command.help.category)) {
				if (command.help.category === "Owner" && message.author.id !== this.client.config.owner.id) return;
				categories.push(command.help.category);
			};
		});

		const emojis = this.client.customEmojis;

		const embed = new Discord.MessageEmbed()
			.setDescription(message.translate("general/help:INFO", { prefix: message.guild ? data.guild.prefix : "" }))
			.setColor(data.config.embed.color)
			.setFooter(data.config.embed.footer);
		categories.sort().forEach((cat) => {
			const tCommands = commands.filter((cmd) => cmd.help.category === cat);
			embed.addField(`${emojis.categories[cat.toLowerCase()]} ${cat} - (${tCommands.size})`, `${tCommands.map((cmd) => `${cmd.help.name}`).join(", ")}`);
		});
		if (message.guild) {
			if (data.guild.customCommands.length > 0) embed.addField(`${emojis.categories.custom} ${message.guild.name} | ${message.translate("general/help:CUSTOM_COMMANDS")} - (${data.guild.customCommands.length})`, data.guild.customCommands.map((cmd) => `\`${cmd.name}\``).join(", "));
		};

		embed.addField("\u200B", message.translate("misc:STATS_FOOTER", {
			dashboardLink: "https://jaba.pp.ua",
			donateLink: "https://qiwi.com/n/JONNYBRO",
			owner: this.client.config.owner.id
		}));
		embed.setAuthor(message.translate("general/help:TITLE", { name: this.client.user.username }), this.client.user.displayAvatarURL({ size: 512, dynamic: true, format: "png" }));
		return message.channel.send(embed);
	}
};

module.exports = Help;