const reference = document.getElementById("reference");
const contributionsList = document.getElementById("contributions");
const trackList = document.getElementById("trackList");

const pagedjs = document.createElement("script");
pagedjs.src = "https://unpkg.com/pagedjs/dist/paged.polyfill.js";
pagedjs.id ="printview"

const printLib = document.getElementById("btn-print");

window.addEventListener("load", () => {
	fetchContents();
	atlasLink();
	//document.getElementsByTagName("head")[0].appendChild(pagedjs);
});

printLib.addEventListener("click", () =>{
	printViewToggle();
	console.log(btnPrint);
});

function fetchContents() {
	fetch("https://hub.xpub.nl/soupboat/atlas-api/contributions")
		.then((response) => response.json())
		.then((data) => populateContributions(data));
}

function populateContributions(contributions) {
	contributions.forEach((contribution) => {
		contributionsList.appendChild(createSection(contribution));
		createIndexSection(contribution);
	});
}

function createSection(contribution) {
	let section = reference.cloneNode(true);
	section.id = contribution.moment;
	section.querySelector(".moment").innerHTML = contribution.moment;
	section.querySelector(".title").innerHTML = contribution.title;
	section.querySelector(".author").innerHTML = contribution.author;
	section.querySelector(".description").innerHTML = contribution.description;
	section.querySelector(".content").innerHTML = contribution.content_html;
	return section;
}

function atlasLink() {
	let atlas = document.getElementById("atlas-map");
	let groups = atlas.querySelectorAll("g");
	for (const group of groups) {
		let link = document.createElementNS("http://www.w3.org/2000/svg", "a");
		link.setAttributeNS("http://www.w3.org/2000/svg", "href", "#" + group.id);
		link.innerHTML = group.innerHTML;
		group.innerHTML = "";
		group.appendChild(link);
	}
}

function createIndexSection(contribution) {
	let table = document.createElement("table"); 
	let title = document.createElement("h4");
	title.innerHTML = contribution.title;
	if (contribution.audio){
		let tracks = contribution.audio;
		tracks.forEach((track) => {
			let row = document.createElement("tr");
			let col1 = document.createElement("td");
			let col2 = document.createElement("td");
			col1.setAttribute("class", "symbol");
			col2.setAttribute("class", "filename");
			col2.innerHTML = track;
			row.appendChild(col1);
			row.appendChild(col2);
			table.appendChild(row);
		});
	}
	trackList.appendChild(title);
	trackList.appendChild(table);
}



function printViewToggle() {
	var printview = document.getElementById("printview")
	if (!printview) {
		
		document.getElementsByTagName("head")[0].appendChild(pagedjs);
		// sto provando sta porcata qui, ma non funzia uguale. quando la pagina si trasforma in pagedjs la variabile del btn non è più definita (????)
		var btnPrint = document.getElementById("btn-print");
		console.log(btnPrint);
		
	} else {
		//document.getElementsByTagName("head")[0].removeChild(printview);
		pagejs.remove();
		console.log("aooooo che cazzo");
	}
}