--[[
  A minimal rTorrent configuration that provides the basic features
   you want to have in addition to the built-in defaults.

  See https://github.com/rakshasa/rtorrent/wiki/CONFIG-Template
   for an up-to-date version.

  How to use this file:

  1. Copy to destination, remove '-example' suffix
  2. Create rtorrent.rc, containing single command, which executes THIS file.
     For example:

     lua.execute = (cat, (system.env, HOME), "/.config/rtorrent/rtorrent.rc.lua")

]]--

--[[ Bootstrap START ]]--

local rtorrent = require('rtorrent')
rc = rtorrent.autocall

--[[ Helper functions ]]--

local function makeArgs(cmdline)
   return 'sh', '-c', "'"..table.concat(cmdline, "' '").."'"
end

-- Instance layout (base paths)
local home = os.getenv('HOME')

local cfg = {}
cfg.basedir = home..'/rtorrent/'
cfg.download = cfg.basedir..'download/'
cfg.logs = cfg.basedir..'log/'
cfg.logfile = cfg.logs..'rtorrent-'..rc.system.time()..'.log'
cfg.session = cfg.basedir..'.session/'
cfg.watch = cfg.basedir..'watch/'

rc.method.insert('cfg.download', 'private|const|string', cfg.download)
rc.method.insert('cfg.logs',     'private|const|string', cfg.logs)
rc.method.insert('cfg.logfile',  'private|const|string', cfg.logfile)
rc.method.insert('cfg.session',  'private|const|string', cfg.session)
rc.method.insert('cfg.watch',    'private|const|string', cfg.watch)

-- Create instance directories
rc.execute.throw(
   makeArgs({'mkdir', '-p',
             cfg.download,
             cfg.logs,
             cfg.session,
             cfg.watch..'/load',
             cfg.watch..'/start'}))

-- Listening port for incoming peer traffic (fixed; you can also randomize it)
rc.network.port_range = '50000-50000'
rc.network.port_random = false

-- Tracker-less torrent and UDP tracker support
-- (conservative settings for 'private' trackers, change for 'public')
rc.dht.mode = 'disable'
rc.protocol.pex = false
rc.trackers.use_udp = false

-- Peer settings
rc.throttle.max_uploads = 100
rc.throttle.max_uploads.global = 250

rc.throttle.min_peers.normal = 20
rc.throttle.max_peers.normal = 60
rc.throttle.min_peers.seed = 30
rc.throttle.max_peers.seed = 80
rc.trackers.numwant = 80

rc.protocol.encryption.set('allow_incoming', 'try_outgoing', 'enable_retry')

-- Limits for file handle resources, this is optimized for
-- an `ulimit` of 1024 (a common default). You MUST leave
-- a ceiling of handles reserved for rTorrent's internal needs!
rc.network.http.max_open = 50
rc.network.max_open_files = 600
rc.network.max_open_sockets = 300

-- Memory resource usage (increase if you have a large number of items loaded,
-- and/or the available resources to spend)
rc.pieces.memory.max = '1800M'
rc.network.xmlrpc.size_limit = '4M'

-- Basic operational settings (no need to change these)
rc.session.path = cfg.session
rc.directory.default = cfg.download
rc.log.execute(cfg.logs.."execute.log")
--rc.log.xmlrpc(cfg.logs.."xmlrpc.log")
rc.execute.nothrow(
   "sh", "-c", table.concat(
      {"echo >", rc.session.path(), "rtorrent.pid", " ", rc.system.pid()
}))

-- Other operational settings (check & adapt)
rc.encoding.add('utf8')
rc.system.umask = 0027
rc.system.cwd = rc.directory.default()
rc.network.http.dns_cache_timeout = 25
rc.schedule2('monitor_diskspace', '15', '60', 'close_low_diskspace=1000M')
--rc.pieces.hash.on_completion = false
--rc.view.sort_current('seeding', 'greater=d.ratio=')
--rc.keys.layout = 'qwerty'
--rc.network.http.capath = '/etc/ssl/certs'
--rc.network.http.ssl_verify_peer = 0
--rc.network.http.ssl_verify_host = 0
--rc.network.rpc.use_xmlrpc = true
--rc.network.rpc.use_jsonrpc = true

-- Some additional values and commands
-- NOTE: just common names, not commands
rc.method.insert('system.startup_time', 'value|const', rc.system.time())
rc.method.insert('d.data_path', 'simple',
	[[if=(d.is_multi_file),
	 (cat, (d.directory), /),
	 (cat, (d.directory), /, (d.name))]])
rc.method.insert('d.session_file', 'simple', 'cat=(session.path), (d.hash), .torrent')

-- Watch directories (add more as you like, but use unique schedule names)
rc.schedule2('watch_start', '10', '10', 'load.start_verbose=(cat, (cfg.watch), "start/*.torrent")')
rc.schedule2('watch_load', '11', '10', 'load.verbose=(cat, (cfg.watch), "load/*.torrent")')

-- Run the rTorrent process as a daemon in the background
-- (and control via XMLRPC sockets)
--rc.system.daemon = true
--rc.network.scgi.open_local(cfg.session..'rtorrent.sock')
--rc.execute.nothrow('chmod', '770', cfg.session..'rtorrent.sock')

-- Logging:
--   Levels = critical error warn notice info debug
--   Groups = connection_* dht_* peer_* rpc_* storage_* thread_* tracker_* torrent_*
rc.print('Logging to '..rc.cfg.logfile())
rc.log.open_file('log', rc.cfg.logfile())
rc.log.add_output('info', 'log')
--rc.log.add_output('tracker_events', 'log')
--rc.log.add_output('tracker_requests', 'log')

--[[ END of rtorrent.rc.lua ]]--