import { defineElement, Element } from "../src";

defineElement();

const fileElement = document.querySelector<HTMLInputElement>("input")!;
const iconElement = document.querySelector<Element>("lord-icon")!;

async function loadFile(file?: File) {
    if (!file) {
        iconElement.icon = null;
        return;
    }

    const data = new Promise((resolve, reject) => {
        const fileReader = new FileReader();

        fileReader.onload = () => {
            const result = fileReader.result;
            if (!result) {
                reject(null);
                return;
            }

            try {
                resolve(JSON.parse("" + result));
            } catch (e) {
                reject(e);
            }
        };

        fileReader.onerror = () => {
            reject(null);
        };

        fileReader.readAsText(file);
    });

    iconElement.icon = data;
}

fileElement.addEventListener("change", (e) => {
    const file = fileElement.files?.[0];
    loadFile(file);
});