import { DB } from "./database-ENV.ts";
import { fetchStudents } from "./student-ENV.ts";

let outputNode;
function output(msg) {
	if (outputNode.style.display === "none") {
		outputNode.style.display = "block";
	}
	const line = document.createElement("div");
	line.innerHTML = msg;
	line.classList.add("admin-tools-output-line");
	outputNode.appendChild(line);
}

const studentsPromise = fetchStudents();

async function createGraduationDbs() {
	const students = await studentsPromise;

	for (const student of students) {
		if (!DB.getStudentDbs(student)) {
		}
	}
}

async function init() {
	outputNode = document.getElementById("admin-tools-output");
	const students = await studentsPromise;

	output("Suche nach Datenbanken ...");
	let missing = 0;
	for (const student of students) {
		const dbs = await DB.getStudentDbs(student);
		if (!dbs) {
			output(`\t${student.name}: Datenbanken fehlen`);
			missing += 3;
			continue;
		}
		for (const type of ["shadow", "public", "submit"]) {
			if (!dbs[type]) {
				output(`\t${student.name} ${student.group}: ${type} Datenbank fehlt`);
				missing++;
			}
		}
	}
	if (missing) {
		output(`${missing} von ${students.length * 3} Datenbanken fehlen!`);
	} else {
		output("Alle Datenbanken vorhanden!");
	}
}

if (document.readyState === "loading") {
	document.addEventListener("DOMContentLoaded", init);
} else {
	init();
}