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import { GraduationChange, submitGraduationChange } from "./graduation-ENV.ts";
import { fetchStudents } from "./student-ENV.ts";
import { getName } from "./utils-ENV.js";
let name;
function toggle(btn, others) {
if (btn.innerHTML === "X") {
btn.innerHTML = "o";
} else {
btn.innerHTML = "X";
for (const o of others) {
o.innerHTML = "o";
}
}
const submitBtn = document.getElementById("submit-mass-graduation");
submitBtn.style.display = "inline";
submitBtn.disabled = false;
document.getElementById("submit-mass-graduation-state").innerHTML = "";
}
// https://stackoverflow.com/questions/2450954/how-to-randomize-shuffle-a-javascript-array
function shuffleArray(array) {
for (let i = array.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
[array[i], array[j]] = [array[j], array[i]];
}
return array;
}
function chooseMandatory(graduations) {
graduations.sort((g1, g2) => g1.mandatory - g2.mandatory);
// Group the graduations according to the amount of mandatory changes
const mandatoryCandidateGroups = [];
let curGroup = [];
let mandatory = graduations[0].mandatory;
for (const g of graduations) {
if (g.mandatory === mandatory) {
curGroup.push(g);
} else {
// Start a new group
mandatoryCandidateGroups.push(curGroup);
curGroup = [g];
mandatory = g.mandatory;
}
}
// push the last group
mandatoryCandidateGroups.push(curGroup);
// Choose from the group with the smallest amount of mandatory changes
const chosen = [];
for (const candidateGroup of mandatoryCandidateGroups) {
if (chosen.length === 5) break;
// Get a random list of possible indexes
const candidatesIdxs = shuffleArray([...Array(candidateGroup.length).keys()]);
chosen.push(...candidatesIdxs.slice(0, 5 - chosen.length).map((i) => candidateGroup[i]));
}
return chosen;
}
async function loadGroup() {
const students = await fetchStudents();
const graduationPromises = [];
document.getElementById("group-content").style.display = "block";
const mul = document.getElementById("group-mandatory-members");
const ul = document.getElementById("group-members");
mul.innerHTML = "";
ul.innerHTML = "";
const listEntries = [];
for (const student of students) {
const graduationPromise = student.getGraduation();
graduationPromises.push(graduationPromise);
const li = document.createElement("li");
li.student = student;
listEntries.push(li);
const i = document.createElement("img");
i.classList.add("group-member-icon");
graduationPromise.then((graduation) => {
i.src = graduation.getIcon();
});
li.appendChild(i);
}
const graduations = await Promise.all(graduationPromises);
const chosen = chooseMandatory(graduations);
for (const li of listEntries) {
const student = li.student;
const n = document.createElement("span");
n.classList.add("group-member-name");
n.innerHTML = `${student.name}`;
li.appendChild(n);
const btns = [];
for (const col of ["green", "orange", "red"]) {
const b = document.createElement("button");
btns.push(b);
b.classList.add(`group-member-${col}`);
b.innerHTML = "o";
li.appendChild(b);
}
for (const b of btns) {
b.addEventListener("click", () =>
toggle(
b,
btns.filter((o) => o !== b),
),
);
}
if (chosen.includes(student.graduation)) {
li.classList.add("group-mandatory-member");
mul.appendChild(li);
} else {
li.classList.add("group-member");
ul.appendChild(li);
}
}
}
function submitMassGraduation() {
const state = document.getElementById("submit-mass-graduation-state");
state.innerHTML = "";
state.classList.add("submit-mass-graduation-inprogress");
state.style.display = "unset";
// TODO(muhq): await graduation promises
const promises = [];
for (const li of document.querySelectorAll("li.group-member, li.group-mandatory-member")) {
const student = li.student;
const mandatory = li.classList.contains("group-mandatory-member");
if (li.querySelector(".group-member-green").innerHTML === "X") {
promises.push(
submitGraduationChange(
GraduationChange.newGreenPointChange(mandatory, "", name),
student.graduation,
),
);
}
if (li.querySelector(".group-member-orange").innerHTML === "X") {
promises.push(
submitGraduationChange(
GraduationChange.newOrangePointChange(mandatory, "", name),
student.graduation,
),
);
}
if (li.querySelector(".group-member-red").innerHTML === "X") {
promises.push(
submitGraduationChange(
GraduationChange.newRedPointChange(mandatory, "", name),
student.graduation,
),
);
}
}
Promise.all(promises)
.then(() => {
state.style.display = "inline";
state.innerHTML = "✓";
state.style.color = "green";
})
.catch((error) => {
state.style.display = "inline";
state.innerHTML = "X";
state.style.color = "red";
// re-enable submit button
document.getElementById("submit-mass-graduation").disabled = false;
console.log(error);
})
.finally(() => {
state.classList.remove("submit-mass-graduation-inprogress");
});
}
async function init() {
document.getElementById("submit-mass-graduation").addEventListener("click", submitMassGraduation);
name = getName();
loadGroup();
}
if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", init);
} else {
init();
}
|
