66 lines
1.8 KiB
TypeScript
66 lines
1.8 KiB
TypeScript
type CheckboxEl = HTMLInputElement & { checked: boolean; id: string };
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type Box = {
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id: number;
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value: boolean;
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};
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(() => {
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const socket = initSocket("/boxes/ws");
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const deserializeBox = (msg: string): Box => {
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msg = msg.replaceAll("b:", "");
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const parts = msg.split(":");
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return {
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id: Number(parts[0]),
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value: parts[1] === "+",
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};
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};
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const handleInstruction = (instruction: string) => {
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if (instruction.startsWith("b:")) {
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const items = instruction.split(";");
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items.forEach((i) => {
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const box = deserializeBox(i);
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const el = document.getElementById("box-" + box.id) as CheckboxEl;
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el.checked = box.value;
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});
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return;
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}
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if (instruction.startsWith("u:")) {
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const items = instruction.split(":");
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const el = document.getElementById("counter") as CheckboxEl;
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el.innerText = items[1];
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const el2 = document.getElementById("users") as CheckboxEl;
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el2.innerText = items[2].replaceAll(",,,", "\n");
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return;
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}
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};
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socket.addMessageListener((data) => {
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const instructions = data.split("\n");
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instructions.forEach(handleInstruction);
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});
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const handleBoxChange = (event: Event) => {
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const target = event.target as CheckboxEl;
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const id = target?.id.split("-")[1];
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const value = target.checked ? "+" : "-";
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socket.send("b:" + id + ":" + value);
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}
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document.querySelectorAll(".boxes input").forEach((input) => {
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input.addEventListener("change", handleBoxChange);
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});
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const container = document.querySelector(".boxes") as HTMLDivElement;
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const resizeObserver = new ResizeObserver((entries) => {
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const entry = entries.at(0);
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container.style.height = String(entry?.contentRect.width ?? 500) + "px";
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});
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resizeObserver.observe(container);
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})();
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