const urlSearchParams = new URLSearchParams(window.location.search);
const sourceURL = urlSearchParams.get('source');
// https://stackoverflow.com/a/8943487
const urlRegex = /(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig;

(function (global) {
	var apps;
	global.setApps = array => 
		apps = array;
	global.getAppWithBundleId = bundleId =>
		apps?.find(app => app.bundleIdentifier == bundleId) ?? undefined;

	setUpBackButton();
})(this);

const newsItemHTML = (news, minimal = false) => `
<div class="news-item-wrapper"> ${news.url ? 
	"<a href='" + news.url + "'>" : ""}
		<div class="item" style="background-color: #${news.tintColor};">
			<div class="text">
				<h3>${news.title}</h3>
				<p>${news.caption}</p>
			</div>${news.imageURL && !minimal ? 
			"<div class='image-wrapper'>" +
				"<img src='" + news.imageURL + "'>" +
			"</div>" : ""} 
		</div> ${news.url ? 
	"</a>" : ""} ${news.appID && !minimal ?  
	appHeaderHTML(getAppWithBundleId(news.appID)) ?? "" : ""}
</div>`;

const appHeaderHTML = app => app ? `
<div class="item">
	<div class="app-header">
		<div class="content">
			<img src="${app.iconURL}" alt="">
			<div class="right">
				<div class="text">
					<p class="title">${app.name}</p>
					<p class="subtitle">${app.developerName}</p>
				</div>
				<a href="app.html?source=${sourceURL}&id=${app.bundleIdentifier}">
					<button class="uibutton" style="background-color: #${app.tintColor};">View</button>
				</a>
			</div>
		</div>
		<div class="background" style="background-color: #${app.tintColor};"></div>
	</div>
</div>` : undefined;

function insertAddToAltStoreBanner() {
	document.getElementById("top")?.insertAdjacentHTML("afterbegin", `
	<div class="uibanner">
		<img src="https://user-images.githubusercontent.com/705880/65270980-1eb96f80-dad1-11e9-9367-78ccd25ceb02.png" alt="altstore-icon" class="icon">
		<div class="content">
			<div class="text-container">
				<p class="title-text">AltStore <span class="small beta badge"></span></p>
				<p class="detail-text">
					Add this source to AltStore to receive app updates (requires AltStore beta)
				</p>
			</div>
			<a href="altstore://source?url=${sourceURL}">
				<button>Add</button>
			</a>
		</div>
	</div>`);
}

function insertNavigationBar(title) {
	document.getElementById("top")?.insertAdjacentHTML("beforeend", `
	<div id="nav-bar">
		<button id="back" type="button">
			<i class="bi bi-chevron-left"></i>
			Back
		</button>
		<div id="title">
			<p>${title ?? ""}</p>
		</div>
		<button id="back" class="hidden">
			<i class="bi bi-chevron-left"></i>
			Back
		</button>
	</div>`);
	setUpBackButton();
}

// https://stackoverflow.com/a/43467144/19227228
function isValidHTTPURL(string) {
	var url;
	try {
		url = new URL(string);
	} catch (error) {
		console.error("An error occurred.", error);
		return false;
	}
	return url.protocol == "http:" || url.protocol == "https:";
}

function formatString(string) {
	if (!string) return undefined;

	// URLs
	const urlArray = string.match(urlRegex);
	// const urlSet = [...new Set(urlArray)]; // Converting to set to remove duplicates
	var result = "";
	urlArray.forEach(url => {
		string = string.replace(url, `<a href="${url}">${url}</a>`)
		// Remove formatted substring so it won't get formatted again (prevents <a> tag within the href attribute another <a> tag)
		let endIndexOfClosingTag = string.indexOf("</a>") + 4;
		let formattedSubstring = string.substring(0, endIndexOfClosingTag);
		result += formattedSubstring;
		string = string.replace(formattedSubstring, "");
	});

	// New lines
	return result.replaceAll("\n", "<br>");;
}

function setTintColor(color) {
	document.querySelector(':root')?.style.setProperty("--accent-color", `#${color}`);
}

function setUpBackButton() {
	document.getElementById("back")?.addEventListener("click", () => history.back(1));
}

function search() {
	window.location.replace("search.html");
}

const $ = selector => selector.startsWith("#") && !selector.includes(".") && !selector.includes(" ")
	? document.getElementById(selector.substring(1))
	: document.querySelectorAll(selector);