// AO shadowchat feature menu including bootstrap network server list browser, chatroom list on each server, and chatroom interface
// Called shadowchat because no record is kept of the chat messages, and all connections happen E2E over tor
// As this feature gets build, sensible standards must be developed around when tor addresses change hands, when users authenticate, etc 
import { aoEnv } from '../ao-lib/settings.js'
import { isLoggedIn } from './session.js'
import { startPublicBootstrap } from './bootstrap.js'
import { headerStyle } from './styles.js'
import { askQuestionText, promptMenu } from './welcome.js'
import { AO_DEFAULT_HOSTNAME, startSocketListeners, socketStatus, socket, shadowchat } from '../ao-lib/api.js'
import { execSync } from 'child_process'

import { fileURLToPath } from 'url'
import path from 'path'
const __filename = fileURLToPath(import.meta.url)
const __dirname = path.dirname(__filename)

const sleep = (ms = 550) => { return new Promise((r) => setTimeout(r, ms)) }

// Prints a menu that allows you to join the global AO chatrooms
export default async function chatMenu() {
  let answers = {}
  const PUBLIC_BOOTSTRAP_ENABLED = aoEnv('PUBLIC_BOOTSTRAP_ENABLED')
  if(PUBLIC_BOOTSTRAP_ENABLED) {
    // They previously enabled public bootstrapping, so check to make sure it is working and then hide the option
    // todo: start and then verify functioning of p2p boostrap method here
    // if it's already started don't start it again
    //if(!publicBootstrapStarted) {
      console.log("\nBootstrapping public AO swarm...")
      startPublicBootstrap()
      console.log("Bootstrapped (just kidding)")
    //}
    //answers['chat_menu'] = 'Enable p2p bootstrap'
  }
  const chatChoices = [
    { title: 'Join public chatroom', value: 'browse_chatrooms', short: 'public chatrooms' },
    { title: 'Join chatroom', value: 'join_chat', short: 'join chat' },
    'Address Book',
    'Back to AO Menu',
  ]
  const answer = await promptMenu(chatChoices, 'AO Public Chatrooms')
  switch(answer) {
    case 'browse_chatrooms':
      const loggedIn = isLoggedIn()
      if(!isLoggedIn) {
        console.log('Please start AO server and log in first.')
        return true
      }
      console.log('Logged in as:', aoEnv('AO_CLI_SESSION_USERNAME'))
      
      const onAuthenticated = () => {
        //console.log('Websocket connected and authenticated.')
      }
      const onEvent = (event) => {
        console.log('\nEvent received on websocket:', event) // todo: still receiving excess task-resets every 5 minutes
      }
      if(socketStatus !== 'authenticationSuccess') {
        await startSocketListeners(onAuthenticated, onEvent)
        await sleep(400)
      }
      console.log('socketStatus is', socketStatus)
      if(socketStatus !== 'authenticationSuccess') {
        console.log('Failed to connect to websocket. Make sure your AO server is running, and if you have a custom config set your target server in ao-cli.')
        return true
      }
      console.log('Websocket successfully connected to listen for events.')
      while(await browseChatrooms()) {}
      break
    case 'join_chat':
      console.log('Launching Simplex Chat...')
      execSync('bash simplex-chat')
      break
    case 'Address Book':
      console.log('The point of this address book is to make it possible to type short, one-word names and have them resolve to tor addresses.')
      console.log('Name a piece of data by saying name=data. For example, doge=5uc41o1...onion. Then \'doge\' will return the .onion address.')
      console.log('Querying with any synonym in a chain will return the final meanings they all point to.')
      console.log('Keys can have multiple values.')
      break
    default:
      return false
  }
  return true
}

async function getLocalRooms() {
  return new Promise((resolve, reject) => {
    socket.on('rooms_list', event => {
      socket.off('rooms_list')
      resolve(event)
    })
    socket.emit('get_rooms')
  })
}

async function browseChatrooms() {
  if(socketStatus !== 'authenticationSuccess') {
    console.log('Websocket is not connected, going back.')
    return false
  }
  console.log('Getting list of chatrooms...')
  const chatrooms = await getLocalRooms() 
  // Get list of all servers and display
  // todo: check if websocket can work without authentication
  
  // For each server, request its list of channels
  console.log('Chatrooms on this server:', chatrooms)

  //await chatInRoom('HUB')
  return await chatroomScreen('HUB')
  
  // Display the list as a menu with a heading for each server
}

async function chatInRoom(room) {
  console.log('Joining room...')
  socket.emit('join_room', room)
  return new Promise(async (resolve, reject) => {
    const leaveChatroom = () => {
      console.log('Leaving room...')
      socket.emit('leave_room', room)
      socket.off('chat')
      resolve()
    }
     
    socket.on('chat', event => {
      const chatLine = event.name ? event.name + ': ' + event.message : 'Anon:' + event.message
      console.log(/*new Date().toLocaleTimeString(), */'\n' + chatLine)
    })
    
    const username = aoEnv('AO_CLI_SESSION_USERNAME')
    let message
    do {
      message = await askQuestionText('> ')
      switch(message.toLowerCase()) {
        case 'exit':
        case 'leave':
        case 'back':
        case 'quit':
        case false:
          resolve(false)
        default:
          //socket.emit('chat', room, message, username || undefined)
          shadowchat(room, message, username || undefined)
      }
    } while(message !== 'exit')
  })
}

/*async function chatroomScreen(room) {
  var ui = new inquirer.ui.BottomBar()
  ui.render()
  console.log(ui)
  // pipe a Stream to the log zone
  //outputStream.pipe(ui.log)
  
  // Or simply write output
  ui.log.write('something just happened.');
  ui.log.write('Almost over, standby!');
  
  // During processing, update the bottom bar content to display a loader
  // or output a progress bar, etc
  ui.updateBottomBar('new bottom bar content');
}*/

import blessed from 'blessed'
export async function chatroomScreen(room) {
  const screen = blessed.screen({
    smartCSR: true,
    ignoreLocked: ['C-c'],
    dockBorders: true,
    title: room
  })
   
  const chatlog = blessed.log({
    top: 0,
    left: 0,
    bottom: 2,
    width: '100%',
    content: '{bold}' + room + '{/bold}',
    tags: true,
    scrollable: true,
    border: {
      type: 'line'
    },
    style: {
      fg: 'white',
      bg: 'black',
      border: {
        fg: '#f0f0f0'
      },
    }
  })
  screen.append(chatlog);
   
  const input = blessed.textbox({
    bottom: 0,
    left: 0,
    right: 0,
    height: 3,
    content: 'Type message here',
    inputOnFocus: true,
    border: {
      type: 'line'
    },
    style: {
      fg: 'white',
      bg: 'blue',
      border: {
        fg: '#f0f0f0'
      },
    }
  })
  input.on('submit', (event) => {
    chatlog.log('new submission:', event)
    input.clearValue()
    input.focus()
  })
  input.on('keypress', (event) => {
    chatlog.add('got keypress:', event)
  })
  screen.append(input)
  //screen.focusPop()
  chatlog.add('screen.focus:', screen.focus)
  input.focus()
   
  screen.render()
  
  return new Promise(async (resolve, reject) => {
    //screen.key(['C-c'], () => process.exit(0))
    screen.key(['escape', 'C-c'], function(ch, key) {
      chatlog.log('Exiting chatroom...')
      screen.destroy()
      resolve(false)
    })
  })
}