Twilight Sanctuary.js

// 2022-MAR-22
// For Foundry V9
const tokens = canvas.tokens.controlled;

if (tokens.length > 0)
{
	await tokens.forEach(UpdateTempHP);
}
else
{
	ui.notifications.warn("No Tokens are selected!");
}

async function UpdateTempHP(token)
{
	let current_tempHP = token.actor.data.data?.attributes?.hp?.temp;
	let cleric = game.actors.getName("ClericName");
	
	// Roll Twilight Sanctuary temporary hit points
	let healRoll = new Roll('1d6 + @classes.cleric.levels', cleric.getRollData()).evaluate({async: false});
	healRoll.toMessage({
		user: game.user._id,
		speaker: ChatMessage.getSpeaker(),
		flavor: `Twilight Sanctuary - Temporary Hit Points`
	});
	
	// Check if new roll is higher than old temp HP
	console.log(healRoll);
	let new_tempHP = parseInt(healRoll.total);
	if (current_tempHP > new_tempHP)
	{
		new_tempHP = current_tempHP;
	}
	
	await token.actor.update({'data.attributes.hp.temp': new_tempHP});
}