async function req(method, path, body) {
	const opts = { method, headers: {} };
	if (body !== undefined) {
		opts.headers['Content-Type'] = 'application/json';
		opts.body = JSON.stringify(body);
	}
	const res = await fetch(path, opts);
	const data = await res.json();
	if (!data.ok) throw new Error(data.error ?? 'Request failed');
	return data;
}

// Fields
export const get_fields     = () => req('GET', '/api/fields');
export const create_field   = (body) => req('POST', '/api/fields', body);
export const update_field   = (id, body) => req('PUT', `/api/fields/${id}`, body);
export const delete_field   = (id) => req('DELETE', `/api/fields/${id}`);

// Components
export const get_components  = () => req('GET', '/api/components');
export const create_component = (body) => req('POST', '/api/components', body);
export const update_component = (id, body) => req('PUT', `/api/components/${id}`, body);
export const delete_component = (id) => req('DELETE', `/api/components/${id}`);

// Inventory
export const get_inventory      = () => req('GET', '/api/inventory');
export const create_inventory   = (body) => req('POST', '/api/inventory', body);
export const update_inventory   = (id, body) => req('PUT', `/api/inventory/${id}`, body);
export const delete_inventory   = (id) => req('DELETE', `/api/inventory/${id}`);