import {RtcConfigurator} from "../types.js"

export const rtcPresets = {
	mixed: () => ({
		iceServers: [
			{urls: ["stun:stun.l.google.com:19302"]},
			{urls: ["stun:stun.services.mozilla.com:3478"]},
			{urls: ["stun:server2024.stunprotocol.org:3478"]},
		],
	}),

	google: () => ({
		iceServers: [
			{urls: ["stun:stun.l.google.com:19302", "stun:stun1.l.google.com:19302"]},
		],
	}),

	mozilla: () => ({
		iceServers: [
			{urls: ["stun:stun.services.mozilla.com:3478"]},
		],
	}),

	stunprotocol: () => ({
		iceServers: [
			{urls: ["stun:server2024.stunprotocol.org:3478"]},
		],
	}),
} satisfies Record<string, () => RTCConfiguration>

export const stdRtcConfigurator: RtcConfigurator = async() => rtcPresets.mixed()

export const turnRtcConfigurator: RtcConfigurator = async({signaller}) => {
	const result = await signaller.turn()

	if ("turn" in result) {
		return {
			iceServers: [
				{urls: ["stun:stun.l.google.com:19302"]},
				{urls: ["stun:stun.services.mozilla.com:3478"]},
				result.turn,
			],
		}
	}
	else {
		console.warn(`turn failed: ${result.no}`)
		return rtcPresets.mixed()
	}
}