const path = require('path')
const fs = require('fs')
const file = require('pull-file')
const ssbKeys = require('ssb-keys')
const stringify = require('pull-stringify')
const open = require('open')
const home = require('os-homedir')()
const nonPrivate = require('non-private-ip')
const muxrpcli = require('muxrpcli')
const {pull, values, once} = require('pull-stream')
const toPull = require('stream-to-pull-stream')
const webresolve = require('ssb-web-resolver')

var SEC = 1e3
var MIN = 60*SEC

var network = process.env.ssb_appname || 'ssb'
var config = require('./config/inject')(network)

var urlIdRegex = /^(?:\/(([%&@]|%25|%26|%40)(?:[A-Za-z0-9\/+]|%2[Ff]|%2[Bb]){43}(?:=|%3[Dd])\.(?:sha256|ed25519))(?:\.([^?]*))?|(\/.*?))(?:\?(.*))?$/

config.keys = ssbKeys.loadOrCreateSync(path.join(config.path, 'secret'))

var favicon = fs.readFileSync(path.join('./public/favicon.ico'))

var manifestFile = path.join(config.path, 'manifest.json')

var argv = process.argv.slice(2)
var i = argv.indexOf('--')
var conf = argv.slice(i+1)
argv = ~i ? argv.slice(0, i) : argv

if (argv[0] == 'start') {

  var createSbot = require('./')

  createSbot
    .use(require('./plugins/master'))
    .use(require('./plugins/local'))
    .use(require('ssb-replicate'))
    .use(require('ssb-invite'))
    .use(require('ssb-friends'))
    .use(require('ssb-gossip'))
    .use(require('ssb-blobs'))
    .use(require('ssb-backlinks'))
    .use(require('ssb-query'))
    .use(require('ssb-links'))
    .use(require('ssb-ebt'))
    .use(require('ssb-search'))
    .use(require('ssb-ws'))
    .use({
      name: 'serve',
      version: '1.0.0',
      init: function (sbot) {
        sbot.ws.use(function (req, res, next) {
          var send = config

          delete send.keys // very important to keep this, as it removes the server keys from the config before broadcast

          send.address = 'ws://100.115.92.2:8989~shs:VelntasZy86CuIihzSpkzPvIOYgyu3FO3NZww/UOirk='

          var m = urlIdRegex.exec(req.url)

          function onError(err) { if (err) console.error('[viewer]', err) }

          if(req.url == '/') {
            var filePath = path.join(__dirname, 'localhost/build/index.html')

            return pull(file(filePath), toPull(res, onError))
          }
          if(req.url == '/mvd') {
            var filePath = path.join(__dirname, 'build/index.html')

            return pull(file(filePath), toPull(res, onError))
          }
          if(req.url.startsWith('/web/')) {
            return serveWeb(req, res, m[4])
          }
          if(req.url == '/get-config') {
            return res.end(JSON.stringify(send))
          }
          if(req.url == '/favicon.ico') {
            return res.end(favicon)
          } else next()

          function respond(res, status, message) {
            res.writeHead(status)
            res.end(message)
          }

          function serveWeb (req, res, url) {
            var self = this
            var id = decodeURIComponent(url.substr(1))

            var components = url.split('/')
            if (components[0] === '') components.shift()
            if (components[0] === 'web') components.shift()
            components[0] = decodeURIComponent(components[0])

            webresolve(sbot, components, function (err, data) {
              if (err) return respond(res, 404, 'ERROR: ' + err)


              return pull(once(data), toPull(res))
            })
          }
        })
      }
    })

    open('http://100.115.92.2:' + config.ws.port, {wait: false})

    // start server
    var server = createSbot(config)

    fs.writeFileSync(manifestFile, JSON.stringify(server.getManifest(), null, 2))
} else {

  var manifest
  try {
    manifest = JSON.parse(fs.readFileSync(manifestFile))
  } catch (err) {
    throw explain(err,
      'no manifest file'
      + '- should be generated first time server is run'
    )
  }

  // connect
  require('ssb-client')(config.keys, {
    manifest: manifest,
    port: config.port,
    host: config.host||'localhost',
    caps: config.caps,
    key: config.key || config.keys.id
  }, function (err, rpc) {
    if(err) {
      if (/could not connect/.test(err.message)) {
        console.log('Error: Could not connect to the scuttlebot server.')
        console.log('Use the "server" command to start it.')
        if(config.verbose) throw err
        process.exit(1)
      }
      throw err
    }

    // add some extra commands
    manifest.version = 'async'
    manifest.config = 'sync'
    rpc.version = function (cb) {
      console.log(require('./package.json').version)
      cb()
    }
    rpc.config = function (cb) {
      console.log(JSON.stringify(config, null, 2))
      cb()
    }

    // run commandline flow
    muxrpcli(argv, manifest, rpc, config.verbose)
  })
}