// Save as add-lti-tool.mjs. Run on your server, never in the browser.
function requiredEnv(name) {
  const value = process.env[name];
  if (!value) throw new Error(`Set ${name} before running this example.`);
  return value;
}

const authorization = "Basic " + Buffer.from(
  requiredEnv("SCORMBOX_API_KEY") + ":" + requiredEnv("SCORMBOX_API_SECRET")
).toString("base64");

async function requestJson(path, body) {
  const response = await fetch("https://scormbox.com/api/v1" + path, {
    method: "POST",
    headers: { Authorization: authorization, "Content-Type": "application/json" },
    body: JSON.stringify(body)
  });
  const result = await response.json();
  if (!response.ok) throw new Error(result.error || `HTTP ${response.status}`);
  return result;
}

const version = process.env.LTI_VERSION || "1.3";
if (!["1.1", "1.3"].includes(version)) throw new Error("Use LTI_VERSION 1.1 or 1.3.");
const connection_input = {
  name: process.env.LTI_TOOL_NAME || "My LTI tool",
  version,
  launch_url: requiredEnv("LTI_LAUNCH_URL")
};
if (version === "1.1") {
  connection_input.consumer_key = requiredEnv("LTI_CONSUMER_KEY");
  connection_input.shared_secret = requiredEnv("LTI_SHARED_SECRET");
} else {
  connection_input.login_url = requiredEnv("LTI_LOGIN_URL");
  connection_input.redirect_uris = [requiredEnv("LTI_REDIRECT_URI")];
  connection_input.jwks_url = requiredEnv("LTI_JWKS_URL");
}

const connection = await requestJson("/lti/connections", connection_input);
const course = await requestJson("/courses", {
  format: "lti",
  connection_id: connection.id,
  title: connection_input.name,
  shareable: false
});
console.log(JSON.stringify({
  connection_id: connection.id,
  course_id: course.course_id,
  management_url: course.management_url,
  ...(version === "1.3" ? { platform_settings: {
    issuer: connection.issuer,
    client_id: connection.client_id,
    deployment_id: connection.deployment_id,
    auth_url: connection.auth_url,
    token_url: connection.token_url,
    jwks_url: connection.jwks_url
  } } : {})
}, null, 2));