# Description:
#   abilità di asjon di usare la shell *nix
#
# Requires:
#   None
#
# Commands:
#   asjon run/esegui/shell git/npm args...
#
# Author:
#   Enrico Fasoli (fazo96)

cp = require 'child_process'

nope = ['BZBZ 400-BAD-REQUEST', 'BZBZ DOES-NOT-COMPUTE', 'BZBZ ADMIN-NOT-DETECTED', 'BZBZ IS-NOT-AUTHORIZED', 'BZBZ ACCESS-DENIED']

isFromAdmin = (res) ->
  res.message.user.room is process.env.ADMIN_ROOM?.replace(':','#') or res.robot.adapterName is 'shell'

runCmd = (cmd,res,cb) ->
  if res?.send? then res.send 'Operazione in corso: '+cmd
  if process.env.TESTING_ASJON
    # Fingi di eseguire l'operazione
    if res?.send? then res.send 'Operazione "completata": '+cmd
    if cb?.call? then cb null,'',''
  else cp.exec cmd, (err,stdout,stderr) ->
    if res?.send?
      if err
        res.send 'Operazione fallita:\n'+stdout+stderr
      else
        res.send 'Operazione completata:\n'+stdout
    if cb?.call? then cb err,stdout,stderr

module.exports = (robot) ->

  # Lancia i test all'avvio
  if process.env.AUTO_RUN_TESTS and process.env.ADMIN_ROOM
    dest = room: process.env.ADMIN_ROOM.replace(':','#')
    dest.send = (x) -> robot.send dest, x
    runCmd 'npm test', dest

  if process.env.AUTO_INFORM_ON_START
    r = room: process.env.AUTO_INFORM_ON_START.replace(':','#')
    robot.send r, 'asjon avviato e operativo!'

  robot.respond /aggiornati|scarica (?:gli )?aggiornamenti/i, (res) ->
    if !isFromAdmin(res) then return res.send res.random nope
    runCmd 'git pull && npm install', res

  robot.respond /(?:controlla gli )?aggiornamenti/i, (res) ->
    if !isFromAdmin(res) then return res.send res.random nope
    runCmd 'git fetch && git status', res

  robot.respond /(?:installa (?:le )?)?dipendenze/i, (res) ->
    if !isFromAdmin(res) then return res.send res.random nope
    runCmd 'npm install', res

  robot.respond /(?:esegui (?:i )?)?test/i, (res) ->
    if !isFromAdmin(res) then return res.send res.random nope
    runCmd 'npm test', res

  robot.on 'githubhook', (data,params) ->
    if data.ref is 'refs/heads/master' and process.env.AUTO_KILL_ON_UPDATE
      dest = name: params.name, room: params.room.replace(':','#')
      res = send: (x) -> robot.send dest, x
      runCmd 'git pull && npm install', res, ->
        robot.send dest, 'riavvio in 5 SECONDI'
        reboot = -> process.exit 0
        unless process.env.TESTING_ASJON
          # Non riavviare durante i test
          setTimeout reboot, 5000