#!/usr/bin/env node
/* eslint-disable no-console */
const fs = require("node:fs");
const DEFAULT_URL = process.env.EXPRESS_SERVER_URL || "http://localhost:3000";
function usage() {
console.error(
[
"Usage:",
" node scripts/import-elements.cjs --in <file> [--mode batch|sync] [--url <canvasUrl>]",
"",
"Modes:",
" batch POST /api/elements/batch (append; creates elements)",
" sync POST /api/elements/sync (overwrite; clears then writes)",
].join("\n"),
);
process.exit(2);
}
function parseArgs(argv) {
const out = { url: DEFAULT_URL, inFile: null, mode: "batch" };
for (let i = 0; i < argv.length; i++) {
const a = argv[i];
if (a === "--url") out.url = argv[++i];
else if (a === "--in") out.inFile = argv[++i];
else if (a === "--mode") out.mode = argv[++i];
}
return out;
}
function readElementsFromFile(inFile) {
const raw = fs.readFileSync(inFile, "utf8");
const data = JSON.parse(raw);
if (Array.isArray(data)) return data;
if (data && Array.isArray(data.elements)) return data.elements;
throw new Error('Input file must be an array, or an object with an "elements" array');
}
async function main() {
if (typeof fetch !== "function") {
throw new Error("This script requires Node 18+ (global fetch).");
}
const { url, inFile, mode } = parseArgs(process.argv.slice(2));
if (!inFile) usage();
if (mode !== "batch" && mode !== "sync") usage();
const elements = readElementsFromFile(inFile);
const baseUrl = url.replace(/\/$/, "");
let endpoint;
let body;
if (mode === "batch") {
endpoint = `${baseUrl}/api/elements/batch`;
body = { elements };
} else {
endpoint = `${baseUrl}/api/elements/sync`;
body = { elements, timestamp: new Date().toISOString() };
}
const res = await fetch(endpoint, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify(body),
});
const json = await res.json().catch(() => null);
if (!res.ok || !json || json.success !== true) {
throw new Error(`Failed to import elements: ${res.status} ${res.statusText} ${json?.error ? `- ${json.error}` : ""}`);
}
const count = json.count ?? json.elements?.length ?? elements.length;
console.log(`Imported ${count} elements (${mode})`);
}
main().catch((err) => {
console.error(err?.stack || String(err));
process.exit(1);
});
