require 'sinatra'
require 'sinatra/cors'
require 'livekit'
require './env.rb'

SERVER_PORT = ENV['SERVER_PORT'] || 6080
LIVEKIT_API_KEY = ENV['LIVEKIT_API_KEY'] || 'devkey'
LIVEKIT_API_SECRET = ENV['LIVEKIT_API_SECRET'] || 'secret'

set :port, SERVER_PORT

register Sinatra::Cors
set :allow_origin, "*"
set :allow_methods, "POST,OPTIONS"
set :allow_headers, "content-type"

post '/token' do
  content_type :json

  body = JSON.parse(request.body.read)
  room_name = body['roomName']
  participant_name = body['participantName']

  if room_name.nil? || participant_name.nil?
    status 400
    return 'roomName and participantName are required'
  end

  token = LiveKit::AccessToken.new(api_key: LIVEKIT_API_KEY, api_secret: LIVEKIT_API_SECRET)
  token.identity = participant_name
  token.name = participant_name
  token.add_grant(roomJoin: true, room: room_name)

  return token.to_jwt
end