const input = document.createElement("input");
input.type = "file";
input.accept = ".txt";
input.style.display = "none";

const button = document.createElement("button");
button.textContent = "Choose .txt file";
button.style.position = "fixed";
button.style.top = "10px";
button.style.left = "10px";
button.style.zIndex = "999999";

document.body.appendChild(input);
document.body.appendChild(button);

button.onclick = () => input.click();

input.onchange = async () => {
    const file = input.files[0];
    if (!file) return;

    const text = await file.text();

    for (const char of text) {
        const noNewline = char !== "\n";

        w.typeChar(char, false, 255, noNewline);

        if (char === "\n")
            await new Promise(resolve => setTimeout(resolve, 50));
    }
};