let qr;

// Change input fields based on QR type qrType.addEventListener("change", () => { let type = qrType.value; let html = "";

if (type === "url") { html = ``; } else if (type === "text") { html = ``; } else if (type === "whatsapp") { html = ` `; } else if (type === "email") { html = ` `; } else if (type === "phone") { html = ``; } else if (type === "wifi") { html = ` `; }

inputFields.innerHTML = html; });

generateBtn.addEventListener("click", () => { qrcodeDiv.innerHTML = ""; // clear old QR let type = qrType.value; let qrData = "";

if (type === "url") { qrData = document.getElementById("qrInput").value.trim(); } else if (type === "text") { qrData = document.getElementById("qrInput").value.trim(); } else if (type === "whatsapp") { let phone = document.getElementById("qrPhone").value.trim(); let msg = encodeURIComponent(document.getElementById("qrMsg").value.trim()); qrData = `https://wa.me/${phone}?text=${msg}`; } else if (type === "email") { let email = document.getElementById("qrEmail").value.trim(); let subject = encodeURIComponent(document.getElementById("qrSubject").value.trim()); let body = encodeURIComponent(document.getElementById("qrBody").value.trim()); qrData = `mailto:${email}?subject=${subject}&body=${body}`; } else if (type === "phone") { let phone = document.getElementById("qrInput").value.trim(); qrData = `tel:${phone}`; } else if (type === "wifi") { let ssid = document.getElementById("ssid").value.trim(); let pass = document.getElementById("password").value.trim(); let enc = document.getElementById("encryption").value; qrData = `WIFI:T:${enc};S:${ssid};P:${pass};;`; }

if (!qrData) { alert("Please fill in the required fields!"); return; }

qr = new QRCode(qrcodeDiv, { text: qrData, width: 220, height: 220, colorDark: "#000000", colorLight: "#ffffff", correctLevel: QRCode.CorrectLevel.H });

downloadBtn.style.display = "block"; });

// Download QR Code downloadBtn.addEventListener("click", () => { let qrCanvas = qrcodeDiv.querySelector("canvas"); let qrImg = qrcodeDiv.querySelector("img");

let dataUrl = ""; if (qrCanvas) { dataUrl = qrCanvas.toDataURL("image/png"); } else if (qrImg) { dataUrl = qrImg.src; }

let link = document.createElement("a"); link.href = dataUrl; link.download = "qrcode.png"; link.click(); });