extract-fields-from-collection.ts
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extract-fields-from-collection.ts
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	import _locreq from "locreq";
	import { curryImportPath, exec } from "./utils.js";
	const target_locreq = _locreq(process.cwd());
	import { promises as fs } from "fs";

	export default async function extract_fields_from_collection(
	collection_name: string
	): Promise<{ name: string; type: string }[]> {
	const rel = curryImportPath(target_locreq.resolve("dist/back"));
	const extractor_code = `import {default as Collection} from "${rel(
	`./back/collections/${collection_name}.js`
	)}";
	const c = new Collection();
	const fields = [];
	for (const field_name in c.fields){
	const field = c.fields[field_name];
	let type = field.typeName;
	if(["derived-value", "cached-value"].includes(type)){
	type = field.virtual_field.typeName
	}
	fields.push({name: field_name, type})
	}
	console.log(JSON.stringify(fields));
	`;
	const extractor_code_path = target_locreq.resolve(
	"dist/back/___extract_fields.js"
	);
	await fs.writeFile(extractor_code_path, extractor_code);
	const { stdout } = await exec("node", [extractor_code_path]);
	await fs.unlink(extractor_code_path);
	return JSON.parse(stdout);
	}