Share into your Bolt app: links, text and photos from any other app

var inApp = navigator.userAgent.indexOf("YourAppToken") !== -1;

function classifyShared(raw) {
  var value = String(raw).trim();
  var b64 = value.replace(/^data:image\/[a-z+]+;base64,/i, "");
  if (/^https?:\/\//i.test(value)) return { kind: "link", url: value };
  if (b64.length > 1000 && /^[A-Za-z0-9+\/=\s]+$/.test(b64.slice(0, 4000))) {
    return { kind: "image", base64: b64, mime: b64.indexOf("iVBORw0KGgo") === 0 ? "image/png" : "image/jpeg" };
  }
  var link = value.match(/https?:\/\/\S+/);
  return { kind: "text", text: value, url: link ? link[0] : null };
}

function base64ToBlob(b64, mime) {
  var bin = atob(b64.replace(/\s/g, ""));
  var bytes = new Uint8Array(bin.length);
  for (var i = 0; i < bin.length; i++) bytes[i] = bin.charCodeAt(i);
  return new Blob([bytes], { type: mime });
}

function checkSharedContent() {
  if (!inApp || typeof sharedData === "undefined" || !sharedData) return false;
  var fingerprint = String(sharedData).length + ":" + String(sharedData).slice(0, 64);
  if (sessionStorage.getItem("lastShare") === fingerprint) return false;   // already handled
  sessionStorage.setItem("lastShare", fingerprint);
  sessionStorage.setItem("pendingShare", JSON.stringify(classifyShared(sharedData)));
  window.location.href = "/save";                                         // your prefilled save screen
  return true;
}

window.addEventListener("load", function () {
  if (!checkSharedContent()) setTimeout(checkSharedContent, 1000);
});