"use strict";

const $ = require("jquery");
const settings = $("#settings");
const userStyles = $("#user-specified-css");
const storage = require("./localStorage");
const tz = require("./libs/handlebars/tz");

const windows = $("#windows");
const chat = $("#chat");

// Default options
const options = {
	autocomplete: true,
	coloredNicks: true,
	desktopNotifications: false,
	highlights: [],
	links: true,
	motd: true,
	notification: true,
	notifyAllMessages: false,
	showSeconds: false,
	statusMessages: "condensed",
	theme: $("#theme").attr("href").replace(/^themes\/(.*).css$/, "$1"), // Extracts default theme name, set on the server configuration
	thumbnails: true,
	userStyles: userStyles.text(),
};
const userOptions = JSON.parse(storage.get("settings")) || {};

for (const key in options) {
	if (userOptions[key]) {
		options[key] = userOptions[key];
	}
}

module.exports = options;

module.exports.shouldOpenMessagePreview = function(type) {
	return (options.links && type === "link") || (options.thumbnails && type === "image");
};

for (var i in options) {
	if (i === "userStyles") {
		if (!/[?&]nocss/.test(window.location.search)) {
			$(document.head).find("#user-specified-css").html(options[i]);
		}
		settings.find("#user-specified-css-input").val(options[i]);
	} else if (i === "highlights") {
		settings.find("input[name=" + i + "]").val(options[i]);
	} else if (i === "statusMessages") {
		settings.find(`input[name=${i}][value=${options[i]}]`)
			.prop("checked", true);
	} else if (i === "theme") {
		$("#theme").attr("href", "themes/" + options[i] + ".css");
		settings.find("select[name=" + i + "]").val(options[i]);
	} else if (options[i]) {
		settings.find("input[name=" + i + "]").prop("checked", true);
	}
}

settings.on("change", "input, select, textarea", function() {
	const self = $(this);
	const type = self.attr("type");
	const name = self.attr("name");

	if (type === "password") {
		return;
	} else if (type === "radio") {
		if (self.prop("checked")) {
			options[name] = self.val();
		}
	} else if (type === "checkbox") {
		options[name] = self.prop("checked");
	} else {
		options[name] = self.val();
	}

	storage.set("settings", JSON.stringify(options));

	if (name === "motd") {
		chat.toggleClass("hide-" + name, !self.prop("checked"));
	} else if (name === "statusMessages") {
		chat.toggleClass("hide-status-messages", options[name] === "hidden");
	} else if (name === "coloredNicks") {
		chat.toggleClass("colored-nicks", self.prop("checked"));
	} else if (name === "theme") {
		$("#theme").attr("href", "themes/" + options[name] + ".css");
	} else if (name === "userStyles") {
		userStyles.html(options[name]);
	} else if (name === "highlights") {
		var highlightString = options[name];
		options.highlights = highlightString.split(",").map(function(h) {
			return h.trim();
		}).filter(function(h) {
			// Ensure we don't have empty string in the list of highlights
			// otherwise, users get notifications for everything
			return h !== "";
		});
	} else if (name === "showSeconds") {
		chat.find(".msg > .time").each(function() {
			$(this).text(tz($(this).parent().data("time")));
		});
	} else if (name === "autocomplete") {
		if (self.prop("checked")) {
			$("#input").trigger("autocomplete:on");
		} else {
			$("#input").textcomplete("destroy");
		}
	}
}).find("input")
	.trigger("change");

$("#desktopNotifications").on("change", function() {
	if ($(this).prop("checked") && Notification.permission !== "granted") {
		Notification.requestPermission(updateDesktopNotificationStatus);
	}
});

// Updates the checkbox and warning in settings when the Settings page is
// opened or when the checkbox state is changed.
// When notifications are not supported, this is never called (because
// checkbox state can not be changed).
var updateDesktopNotificationStatus = function() {
	if (Notification.permission === "denied") {
		desktopNotificationsCheckbox.attr("disabled", true);
		desktopNotificationsCheckbox.attr("checked", false);
		warningBlocked.show();
	} else {
		if (Notification.permission === "default" && desktopNotificationsCheckbox.prop("checked")) {
			desktopNotificationsCheckbox.attr("checked", false);
		}
		desktopNotificationsCheckbox.attr("disabled", false);
		warningBlocked.hide();
	}
};

// If browser does not support notifications, override existing settings and
// display proper message in settings.
var desktopNotificationsCheckbox = $("#desktopNotifications");
var warningUnsupported = $("#warnUnsupportedDesktopNotifications");
var warningBlocked = $("#warnBlockedDesktopNotifications");
warningBlocked.hide();
if (("Notification" in window)) {
	warningUnsupported.hide();
	windows.on("show", "#settings", updateDesktopNotificationStatus);
} else {
	options.desktopNotifications = false;
	desktopNotificationsCheckbox.attr("disabled", true);
	desktopNotificationsCheckbox.attr("checked", false);
}