// function to draw data we recieve from ajax requests
"use strict";
_lastData = [];
function drawcontents(data) {
	data = data || _lastData; //Cache data so we can drawcontents without waiting for the server, for the search box.
	_lastData = data;

	// allow searching for multiple criteria separated by space
	var searchArgs = document.querySelector("#search").value;
	searchArgs = searchArgs.trim();
	searchArgs = "(" + searchArgs.replace(/ +/g,")|(") + ")";
	const search = new RegExp(searchArgs, "i");
	data = data.filter(function(item) {
		return search.test(item.name);
	});

	sortByKey(data, "count");

	const table = document.querySelector("#contents tbody"); //tables have tbody inserted automatically
	const rows = table.children;

	//update existing rows or create new ones
	data.forEach(function(item, i) {
		// format count to have .s in it for large number readability (1,000,000)
		item.count = item.count.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");

		let row = rows[i];
		if(!row) {
			row = document.createElement("tr");
			row.innerHTML = "<td><div></div></td><td class=name></td><td class=count></td>";
			table.appendChild(row);
		}

		const itemIcon = row.querySelector("div");
		const iconClass = getItemIconClass(item.name);
		if (itemIcon.getAttribute("class") !== iconClass) {
			itemIcon.setAttribute("class", iconClass);
		}

		let localeName = item.name;
		let meta = factorioItemMetadata.get(item.name);
		if (meta && meta.localised_name) {
			// TODO implement the locale to name conversion.
			localeName = factorioLocale.get(meta.localised_name[0]);
		} else {
			for (let section of ["item-name", "entity-name", "fluid-name", "equipment-name"]) {
				let name = factorioLocale.get(`${section}.${item.name}`);
				if (name) {
					localeName = name;
					break;
				}
			}
		}

		const name = row.querySelector(".name");
		if(name.textContent !== localeName) {
			name.textContent = localeName;
		}

		const count = row.querySelector(".count");
		if(count.textContent !== String(item.count)) {
			count.textContent = item.count;
		}
	});

	//remove excess rows, for example, after filtering
	while (data.length < rows.length) {
		table.removeChild(rows[data.length]);
	}
}

// get cluster inventory from master
function updateInventory() {
	var xmlhttp = new XMLHttpRequest();
	xmlhttp.onreadystatechange = function() {
		if(xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			let data = JSON.parse(xmlhttp.responseText);
			drawcontents(data);
		}
	};
	xmlhttp.open("GET", `${root}api/inventory`, true);
	xmlhttp.send();
}
if(JSON.parse(localStorage.settings)["Periodically update storage screen"]) {
	setInterval(updateInventory, 500);
} else {
	updateInventory();
}

// function to sort arrays of objects after a keys value
function sortByKey(array, key) {
	array.sort(function(a, b) {
		return b[key] - a[key];
	});
}

document.querySelector("#search").addEventListener("input", function() {
	drawcontents();
});