"use strict";

const Chan = require("../../models/chan");
const Msg = require("../../models/msg");
const Helper = require("../../helper");

exports.commands = ["ignore", "unignore", "ignorelist"];

exports.input = function(network, chan, cmd, args) {
	const client = this;
	let target;
	let hostmask;

	if (cmd !== "ignorelist" && (args.length === 0 || args[0].trim().length === 0)) {
		chan.pushMessage(
			client,
			new Msg({
				type: Msg.Type.ERROR,
				text: `Usage: /${cmd} <nick>[!ident][@host]`,
			})
		);

		return;
	}

	if (cmd !== "ignorelist") {
		// Trim to remove any spaces from the hostmask
		target = args[0].trim();
		hostmask = Helper.parseHostmask(target);
	}

	switch (cmd) {
		case "ignore": {
			// IRC nicks are case insensitive
			if (hostmask.nick.toLowerCase() === network.nick.toLowerCase()) {
				chan.pushMessage(
					client,
					new Msg({
						type: Msg.Type.ERROR,
						text: "You can't ignore yourself",
					})
				);
			} else if (
				!network.ignoreList.some(function(entry) {
					return Helper.compareHostmask(entry, hostmask);
				})
			) {
				hostmask.when = Date.now();
				network.ignoreList.push(hostmask);

				client.save();
				chan.pushMessage(
					client,
					new Msg({
						type: Msg.Type.ERROR,
						text: `\u0002${hostmask.nick}!${hostmask.ident}@${hostmask.hostname}\u000f added to ignorelist`,
					})
				);
			} else {
				chan.pushMessage(
					client,
					new Msg({
						type: Msg.Type.ERROR,
						text: "The specified user/hostmask is already ignored",
					})
				);
			}

			break;
		}

		case "unignore": {
			const idx = network.ignoreList.findIndex(function(entry) {
				return Helper.compareHostmask(entry, hostmask);
			});

			// Check if the entry exists before removing it, otherwise
			// let the user know.
			if (idx !== -1) {
				network.ignoreList.splice(idx, 1);
				client.save();

				chan.pushMessage(
					client,
					new Msg({
						type: Msg.Type.ERROR,
						text: `Successfully removed \u0002${hostmask.nick}!${hostmask.ident}@${hostmask.hostname}\u000f from ignorelist`,
					})
				);
			} else {
				chan.pushMessage(
					client,
					new Msg({
						type: Msg.Type.ERROR,
						text: "The specified user/hostmask is not ignored",
					})
				);
			}

			break;
		}

		case "ignorelist":
			if (network.ignoreList.length === 0) {
				chan.pushMessage(
					client,
					new Msg({
						type: Msg.Type.ERROR,
						text: "Ignorelist is empty",
					})
				);
			} else {
				const chanName = "Ignored users";
				const ignored = network.ignoreList.map((data) => ({
					hostmask: `${data.nick}!${data.ident}@${data.hostname}`,
					when: data.when,
				}));
				let newChan = network.getChannel(chanName);

				if (typeof newChan === "undefined") {
					newChan = client.createChannel({
						type: Chan.Type.SPECIAL,
						special: Chan.SpecialType.IGNORELIST,
						name: chanName,
						data: ignored,
					});
					client.emit("join", {
						network: network.uuid,
						chan: newChan.getFilteredClone(true),
						index: network.addChannel(newChan),
					});
				} else {
					newChan.data = ignored;

					client.emit("msg:special", {
						chan: newChan.id,
						data: ignored,
					});
				}
			}

			break;
	}
};