Update

Rewritten back to Lua.

Using more beautiful classes.

Add Arabic (lol idk why).

.dockerignore

@@ -0,0 +1,4 @@
+.env
+.gitignore
+.git
+

.gitignore

@@ -2,3 +2,5 @@
 *~
 \#*#
 
+.env
+

.gitmodules

@@ -2,3 +2,6 @@
 	path = etc/api
 	url = https://gitdab.com/er2/tg-api-lua
 
+[submodule "etc/utf8"]
+	path = etc/utf8
+	url = https://github.com/Stepets/utf8.lua

Dockerfile

@@ -0,0 +1,21 @@
+FROM alpine AS build
+
+RUN apk add luarocks5.1 libressl-dev gcc musl-dev lua5.1-dev \
+  && luarocks-5.1 install luasec \
+  && mkdir -p /dist/usr/local \
+  && mkdir -p /dist/usr/local/lib/lua && cp -rpv /usr/local/lib/lua/* /dist/usr/local/lib/lua \
+  && mkdir -p /dist/usr/local/share/lua && cp -rpv /usr/local/share/lua/* /dist/usr/local/share/lua
+
+COPY run.sh /dist
+COPY . /dist/app
+
+FROM alpine
+VOLUME ["/app"]
+
+RUN apk add libressl luajit \
+  && ln -sf $(which luajit) /usr/bin/lua \
+  && adduser -D -h /app user
+
+COPY --from=build /dist /
+ENTRYPOINT ["/run.sh"]
+

config.lua

@@ -1,15 +1,19 @@
 return {
-  token = 'atokenyanedam',
-  owner = 935626920 , -- hehe
+  token = os.getenv 'TOKEN',
+  owner = tonumber(os.getenv 'OWNER'),
   cmds = {
     'eval',
+    'reload',
     'ping',
     'rub',
     'start',
+    'shell',
   },
   events = {
     'command',
     'ready',
+    'inlineQuery',
+    'message',
   },
   parts = {
     'locale',

etc/api

@@ -1 +1 @@
-Subproject commit 30f7203c5fe69e875dbd29a4da9fe0c5ab1ddc9b
+Subproject commit faab5a7e6d0dc684d04cf5121b9735b786716aca

etc/class.lua

@@ -0,0 +1,116 @@
+-- Class library
+-- (c) Er2 2022 <er2@dismail.de>
+-- Zlib License
+
+-- (Not) Virtual classes table
+local vtable = {}
+
+-- Metamethods
+local cls = {}
+cls.__index = cls
+
+-- :__tostring() - Calls when using Lua tostring() or error occurs.
+function cls:__tostring()
+  local str = 'Class <'.. self.__name ..'>'
+  while self.__super do
+    str = str.. ' inherits '.. self.__super.__name
+    self = self.__super
+  end
+  return str
+end
+
+-- :__call(table) - Calls when defining class body
+function cls:__call(t)
+  for k, v in pairs(t) do
+    self[k] = v
+  end
+  if self.__init
+  then self:__init()
+  end
+end
+
+-- :new(...) - Creates new instance of class. Please use new(...) function instead.
+-- Can throw error if no constructor defined in class or subclasses.
+function cls:new(...)
+  local cl = self
+  local cons
+  repeat cons = rawget(cl, 1) or rawget(cl, 'new')
+    cl = cl.__super
+  until cons or not cl
+  assert(cons, 'No constructor found in class')
+
+  --self.__index = self.__index or cls.__index
+  self = setmetatable({}, self)
+  cons(self, ...)
+
+  return self
+end
+
+-- :super(...) - Call parent constructor.
+function cls:super(...)
+  return cls.superM(self, 1, ...)
+  or cls.superM(self, 'new', ...)
+end
+
+-- :superM(method, ...) - Call method from parent class.
+-- Can throw error if class is not inherited.
+function cls:superM(meth, ...)
+  local cl = self.__super
+  local fn
+  while not fn and cl do
+    fn = cl[meth]
+    if cl.__sup then fn = nil end
+    cl = cl.__super
+  end
+  if not fn then return nil end
+
+  if cl then cl.__sup = true end
+  local v = {fn(self, ...)}
+  if cl then cl.__sup = nil end
+  return table.unpack(v)
+end
+
+-- :clone() - Make clone of class.
+function cls:clone()
+  local cl = {}
+  for k, v in pairs(cls)
+  do cl[k] = v end
+  for k, v in pairs(self)
+  do cl[k] = v end
+  cl.__index = cl
+  cl.__super = self
+  return setmetatable(cl, self)
+end
+
+-- :inherits(className) - Make this class inherits from another.
+-- Can throw error if class is already inherited.
+function cls:inherits(name)
+--  assert(self.__super, 'no')
+  local cl = vtable[name]
+  assert(cl, 'Class is not exists')
+  return setmetatable(self, cl:clone())
+end
+
+-- :extends(className) - Same as :inherits(className).
+cls.extends = cls.inherits
+
+-- class(className) - Make new class.
+-- Can throw error if class already exists with this name.
+function class(name)
+  assert(not vtable[name], 'Cannot override defined class')
+  local cl = setmetatable({__name = name, __tostring = cls.__tostring}, cls)
+  cl.__index = cl
+  vtable[name] = cl
+  return cl
+end
+
+-- new(className) - Make new instance of class. Use this instead of :new(class).
+-- Can throw error if class by name was not found.
+function new(name)
+  local cl = vtable[name]
+  assert(cl, 'No class found')
+  return function(...)
+    return cls.new(cl, ...)
+  end
+end
+

etc/events.lua

@@ -1,43 +1,74 @@
---[[ Events library
-  -- (c) Er2 2021 <er2@dismail.de>
-  -- Zlib License
---]]
+-- Events library
+-- (c) Er2 2022 <er2@dismail.de>
+-- Zlib License
 
-local events = {}
-events.__index = events
+require 'class'
 
-function events:_add(t, n, f)
-  table.insert(self._ev_, {
-    type = t,
-    name = n,
-      fn = f,
-  })
-end
+class 'Events' {
+  function(this)
+    this._ev_ = {}
+  end,
 
-function events:on(n,f)   self:_add('on', n,f)   end
-function events:once(n,f) self:_add('once', n,f) end
+  _add = function(this, type, name, func)
+    table.insert(this._ev_, {
+      type = tostring(type),
+      name = tostring(name),
+      func = func,
+    })
+  end,
 
-function events:_ev(t, i, name, ...)
-  local v = t[i]
-  if v.name == name then
-    v.fn(...)
-    if v.type == 'once' then table.remove(t, i) end
-  end
-end
+  on = function(this, name, func)
+    this:_add('on', name, func)
+  end,
 
-function events:emit(name, ...)
-  local t = self._ev_
-  for i = 1, #t do
-    local v = t[i] or {}
-    if  type(v)      == 'table'
-    and type(v.name) == 'string'
-    and type(v.type) == 'string'
-    and type(v.fn)   == 'function'
-    then self:_ev(t, i, name, ...) end
-  end
-end
+  once = function(this, name, func)
+    this:_add('once', name, func)
+  end,
+
+  off = function(this, func)
+    for k, v in pairs(this._ev_) do
+      if v.func == func
+      then table.remove(this._ev_, k)
+      end
+    end
+  end,
+
+  _ev = function(this, t, i, name, ...)
+    local v = t[i]
+    if v.name == name then
+      v.func(...)
+      if v.type == 'once'
+      then table.remove(t, i)
+      end
+    end
+  end,
+
+  emit = function(this, name, ...)
+    local t = this._ev_
+    for i = 1, #t do
+      local v = t[i]
+      if  type(v)      == 'table'
+      and type(v.name) == 'string'
+      and type(v.type) == 'string'
+      and type(v.func) == 'function'
+      then this:_ev(t, i, name, ...)
+      else print 'Invalid event'
+        if v then print(v, v.name, v.type, v.func)
+        else print 'nil' end
+      end
+    end
+  end,
+}
+
+class 'EventsThis' : inherits 'Events' {
+  _ev = function(this, t, i, name, ...)
+    local v = t[i]
+    if v.name == name then
+      v.func(this, ...)
+      if v.type == 'once'
+      then table.remove(t, i)
+      end
+    end
+  end,
+}
 
-return function(t)
-  t._ev_ = {}
-  return setmetatable(t, events)
-end

etc/utf8

@@ -0,0 +1 @@
+Subproject commit 17f4e009a22fb2f2e6ad316a05b2cca8e071fc3b

example.env

@@ -0,0 +1,3 @@
+TOKEN= # insert bot token here
+OWNER= # insert owner ID here
+

init.lua

@@ -1,3 +1,3 @@
-package.path = 'etc/?.lua;etc/?/init.lua;' .. package.path
+package.path = 'etc/?.lua;etc/?/init.lua;?.lua;?/init.lua;' .. package.path
 
 require 'src.parts.core'

license

@@ -1,6 +1,6 @@
 Zlib License
 
-Copyright (c) 2021 Er2 <er2@dismail.de>
+Copyright (c) 2022 Er2 <er2@dismail.de>
 
 This software is provided 'as-is', without any express or implied
 warranty. In no event will the authors be held liable for any damages

readme.org

@@ -1,38 +1,33 @@
 * Computer bot
 
-Now, GitHub contains *mirror*, original is *[[https://gitdab.com/er2/comp-tg][here]]*.
+Original is *[[https://gitdab.com/er2/comp-tg][here]]* and [[https://git.er2.tech/er2/comp-tg][here]].
+Mirrors can update irregularly.
 
 -----
 
-This bot is a continue of [[https://github.com/Er2pkg/computer][my Discord bot]],
-but on Telegram.
+This is a bot for Telegram.
+It haven't got much possibilities,
+but this code can be used in other bots.
+
+Bot can use locale of Telegram client (unlike much bots)
+and use it or fallback to English.
 
 Bot uses an OOP-style of Lua
 as [[https://is.gd/f0Vadk][described on Wikipedia]].
 
-Also bot reads client language and automatically loads needing locale.
-
-Maybe I rewrite bot's core to C but there already so many Lua code.
+Maybe I will rewrite bot's core to C but here already so many Lua code.
 
 * Installation
 
-[[https://alpinelinux.org][Alpine linux]], root:
+Officially supported only [[https://docker.com][Docker]], but you can use it without Docker.
 
-  + Enable community repo (described in wiki)
+Docker installation:
 
-  + Install lua and tools: ~apk add sudo git lua5.3 luarocks openssl-dev~
++ Clone repository with submodules: ~git clone --recursive https://gitdab.com/er2/comp-tg~
 
-  + Install LuaSec for https requests: ~luarocks-5.3 install luasec~
+  and enter ~cd comp-tg~
 
-  + Create user: ~adduser user~
++ Build image: ~docker build -t comp-tg .~
 
-    and login to this user
-
-  + Clone repo: ~git clone --recursive https://gitdab.com/er2/comp-tg~
-
-    and enter ~cd comp-tg~
-
-  + Change token and owner in *config.lua*
-
-  + Run: ~lua5.3 init.lua~
++ Start it: ~docker run -d -e .env --name comp-tg --restart always comp-tg~
 

run.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+chown user:user -R /app 2> /dev/null
+
+cd /app
+su user -c "lua init.lua"
+

src/cmds/eval.lua

@@ -1,11 +1,12 @@
 local function prind(...)
-  local t = {...}
   local s = ''
-  for i = 1, #t do
-    if i > 1 then s = s..'\t' end
-    s = s .. tostring(t[i] or 'nil')
+  for _, v in pairs {...} do
+    if #s > 0
+    then s = s .. '\t'
+    end
+    s = s .. tostring(v) or 'nil'
   end
-  return s .. '\n'
+  return s ..'\n'
 end
 
 local env = {
@@ -19,11 +20,9 @@ local env = {
   type = type,
   pcall = pcall,
   xpcall = xpcall,
-
   math = math,
   string = string,
   table = table,
-
   dump = dump,
 }
 
@@ -33,17 +32,29 @@ return {
     local s = ''
     local t = {
       msg = msg,
-      print = function(...) s = s .. prind(...) end,
-
+      print = function(...)
+        s = s .. prind(...)
+      end,
       C = owner and C or nil,
-      api = owner and C.api or nil,
+      api = owner and C.api or nil
     }
-    for k,v in pairs(env) do t[k] = v end
-    local e, err = load(table.concat(msg.args, ' '), 'eval', 't', t)
-    xpcall(function()
-      if err then error(err) end
+
+    for k, v in pairs(env)
+    do t[k] = v
+    end
+
+    local e, err = load(C.api.unparseArgs(msg.args), 'eval', 'bt', t)
+    xpcall((function()
+      if err
+      then error(err)
+      end
       e = tostring(e() or '...')
-    end, function(err) e = err end)
-    C.api:send(msg, s .. '\n' .. e)
+    end), function(err)
+      e = err
+    end)
+    s = s ..'\n'.. e
+    s = s:gsub(C.api.token:escp(), '<TOKEN>')
+    C.api:reply(msg, s)
   end
-}
+}
+

src/cmds/ping.lua

@@ -1,5 +1,11 @@
 return {
   run = function(C, msg)
-    C.api:send(msg, msg.loc.pat:format(os.time() - msg.date))
+    local t = os.time()
+    local ps, ls = t - msg.date, t - C.loaded
+    local lm = ls / 60
+    local lh = lm / 60
+    local ld = lh / 24
+    C.api:send(msg, msg.loc.pat:format(ps, ld, lh, lm, ls))
   end
-}
+}
+

src/cmds/reload.lua

@@ -0,0 +1,32 @@
+return {
+  private = true,
+  run = function(C, msg)
+    local cat, sub, arg = table.unpack(msg.args)
+
+    if not (cat and sub)
+    then return C.api:reply(msg, '/reload cmds ping')
+    end
+
+    local path = 'src.'.. cat ..'.'.. sub
+
+    C.api:off(package.loaded[path])
+    package.loaded[path] = nil
+
+    if arg == '-off'
+    then C.api:reply(msg, 'Turned off')
+    else
+      local suc, m = pcall(require, path)
+      if not suc
+      then return C.api:reply(msg, 'Reload failed. '.. m)
+      end
+      if cat == 'events'
+      then C.api:on(sub, m)
+      elseif cat == 'cmds'
+      then C.cmds[sub] = m
+      else m(C)
+      end
+      C.api:reply(msg, 'Reloaded. '.. tostring(m))
+    end
+  end
+}
+

src/cmds/rub.lua

@@ -1,61 +1,91 @@
--- It uses data from central bank of Russia
---- and external service to get json from xml
--- Privacy and security is unknown
+class 'Rub' {
+  url = 'https://api.factmaven.com/xml-to-json/?xml=https://www.cbr.ru/scripts/XML_daily.asp',
+  pat = '%d %s (%s) - %f ₽',
 
-local rub = {
-  url = 'https://api.factmaven.com/xml-to-json/?xml='
-    .. 'https://www.cbr.ru/scripts/XML_daily.asp',
+  function(this)
+    this.tools = require 'api.tools'
+  end,
 
-  tools = require 'etc.api.tools',
+  getPat = function(this, val)
+    return this.pat:format(val.Nominal, val.Name, val.CharCode, val.Value:gsub(',', '.'))
+  end,
+
+  course = function(this, wants)
+    local res, ok = this.tools._req(this.url, 'GET')
+    if not ok
+    then return 'err'
+    end
+    res = this.tools.json.decode(res or '{}')
+    res = res.ValCurs
+    if not res
+    then return 'err'
+    end
+
+    -- Pseudo-valutes
+    table.insert(res.Valute, {
+      ID = 'R01000',
+      NumCode = '001',
+      CharCode = 'RUB',
+      Nominal = 1,
+      Name = 'Российский рубль',
+      Value = '1',
+    })
+    local uah = table.findV(res.Valute, {CharCode = 'UAH'})
+    assert(uah, 'No UAH found')
+    table.insert(res.Valute, {
+      ID = 'R02000',
+      NumCode = '200',
+      CharCode = 'SHT',
+      Nominal = 1,
+      Name = 'Штаны',
+      Value = ('%f'):format(tonumber(uah.Value:gsub(',', '.'), nil) / uah.Nominal * 40), -- 40 UAH
+    })
+
+    local r, founds = {}, {}
+    if table.find(wants, 'ALL') then
+      for _, v in pairs(res.Valute)
+      do table.insert(r, this:getPat(v))
+      end
+      return r, res.Date, wants -- string, date, found
+    end
+
+    for _, v in pairs(res.Valute) do
+      if table.find(wants, v.CharCode) then
+        table.insert(founds, v.CharCode)
+	table.insert(r, this:getPat(v))
+      end
+    end
+    return r, res.Date, founds --
+  end,
 }
 
-function rub:course(wants)
-  local resp, succ = self.tools._req(self.url, 'GET')
-  if not succ then return 'err' end
-  resp = self.tools.json.decode(resp or '{}')
-
-  resp = resp.ValCurs
-  table.insert(resp.Valute, {
-    ID = 'R01000',
-    NumCode = '001',
-    CharCode = 'RUB',
-    Nominal = 1,
-    Name = 'Российский рубль',
-    Value = '1'
-  })
-
-  wants = type(wants) == 'table' and wants or {}
-  local r, founds = {}, {}
-
-  for i = 1, #resp.Valute do
-    local v = resp.Valute[i]
-    if table.find(wants, v.CharCode) then
-      table.insert(founds, v.CharCode)
-      table.insert(r, ('%d %s (%s) - %f ₽'):format(v.Nominal, v.Name, v.CharCode, v.Value:gsub(',', '.')))
-    end
-  end
-
-  return r, resp.Date, founds
-end
+local rub = new 'Rub' ()
 
 return {
-  run = function(C, msg)
-    local wants = {'USD', 'EUR', table.unpack(msg.args)}
-    for i = 1, #wants do wants[i] = wants[i]:upper() end -- uppercase
-
+  run = function(self, msg)
+    local wants = {
+      'USD',
+      'EUR',
+      table.unpack(msg.args)
+    }
+    for i = 1, #wants do
+      wants[i] = wants[i]:upper()
+    end
     local v, d, f = rub:course(wants)
-    if v == 'error' then
-      return C.api:reply(msg, C.locale:get('error', 'req_err', msg.l))
+    if v == 'err' then
+      return self.api:reply(msg, self.locale:get('error', 'req_err', msg.l))
     end
-
-    local nf = {}
+    local nf = { }
     for _, i in pairs(wants) do
-      if not table.find(f, i) then table.insert(nf, i) end
+      if not table.find(f, i) then
+        table.insert(nf, i)
+      end
     end
-
     local s = msg.loc.cur:format(d, table.concat(v, '\n'))
-    if #nf > 0 then s = s .. msg.loc.notf .. table.concat(nf, ',') end
-
-    C.api:reply(msg, s .. msg.loc.prov)
+    if #nf > 0 then
+      s = s .. msg.loc.notf .. table.concat(nf, ',')
+    end
+    self.api:reply(msg, s .. msg.loc.prov)
   end
 }
+

src/cmds/shell.lua

@@ -0,0 +1,16 @@
+return {
+  private = true,
+  run = function(C, msg)
+    local file = io.popen(C.api.unparseArgs(msg.args))
+    if file then
+      local r = file:read '*a'
+      file:close()
+      if #r == 0
+      then r = '...'
+      end
+      C.api:reply(msg, r)
+    else return C.api:reply(msg, 'error')
+    end
+  end
+}
+

src/cmds/start.lua

@@ -1,6 +1,7 @@
 return {
   hide = true,
   run = function(C, msg)
-    C.api:reply(msg, 'TODO!')
-  end
-}
+    C.api:reply(msg, msg.loc.msg)
+  end,
+}
+

src/events/command.lua

@@ -1,28 +1,29 @@
-return function(C, api, msg)
-  local cmd = C.cmds[msg.cmd]
-  local owner = msg.from.id == C.config.owner
+return function(C, api, msg)
   local l = msg.from.language_code
-
+  local owner = msg.from.id == C.config.owner
+  local cmd = C.cmds[msg.cmd]
   msg.l = l
 
-  if cmd == nil then
-    api:send(msg, C.locale:get('error', 'inv_cmd', l))
+  if not cmd
+  then api:send(msg, C.locale:get('error', 'inv_cmd', l))
 
-  elseif type(cmd.run) ~= 'function' then
-    api:send(msg, C.locale:get('error', 'cmd_run', l))
-
-  elseif cmd.private and not owner then
-    api:send(msg, C.locale:get('error', 'adm_cmd', l))
+  elseif type(cmd.run) ~= 'function'
+  then api:send(msg, C.locale:get('error', 'cmd_run', l))
 
+  elseif cmd.private and not owner
+  then api:send(msg, C.locale:get('error', 'adm_cmd', l))
   else
+    if cmd.useQArgs
+    then msg.args = api.parseArgs(api.unparseArgs(msg.args))
+    end
     msg.loc = C.locale:get('cmds', msg.cmd, l)
-    local succ, err = pcall(cmd.run, C, msg, owner)
-    if not succ then
+    local suc, err = pcall(cmd.run, C, msg, owner)
+    if not suc then
       print(err)
-      local cid = C.config.owner
-      api:forward(cid, msg.chat.id, msg.message_id, false)
-      api:send(cid, err)
+      api:forward(C.config.owner, msg, msg.message_id, false)
+      api:send(C.config.owner, err)
       api:reply(msg, C.locale:get('error', 'not_suc', l))
     end
   end
 end
+

src/events/inlineQuery.lua

@@ -1,3 +1,10 @@
 return function(C, api, q)
-   api.inline:answer(q.id, api.inline.result('photo', '1', 'https://cdn.discordapp.com/attachments/871474214270554124/876506659311202395/unknown.png'):thumb('https://cdn.discordapp.com/attachments/871474214270554124/876506659311202395/unknown.png'))
+  api.inline:answer(q.id, {
+    api.inline.result('photo', '1',
+      'https://cdn.discordapp.com/attachments/871474214270554124/876506659311202395/unknown.png'
+    ):thumb 'https://cdn.discordapp.com/attachments/871474214270554124/876506659311202395/unknown.png',
+    api.inline.result('photo', '2',
+      'https://cdn.discordapp.com/attachments/710425649449402408/1002915343116795914/unknown.png'
+    ):thumb 'https://cdn.discordapp.com/attachments/710425649449402408/1002915343116795914/unknown.png',
+  })
 end

src/events/message.lua

@@ -0,0 +1,22 @@
+local stick = {
+  {
+    'AgADwAADcpO1DQ',
+    'редебало',
+    'CAACAgIAAx0CUY2umQACFItiHHUg6w_MPu6Vs8k76cwn4OIHNQACwAADcpO1DVbNTDlmHOWMIwQ'
+  }
+}
+return function(C, api, msg)
+  if msg.from.is_premium then
+    api:reply(msg, 'Премак юзер, надо бы забанить. TODO БЛЯТЬ')
+  end
+  if msg.sticker then
+    for k, v in pairs(stick) do
+      if msg.sticker.file_unique_id == v[1] then
+        if math.random() <= 0.5
+        then api:reply(msg, v[2])
+        else api:sendSticker(msg, v[3])
+        end
+      end
+    end
+  end
+end

src/events/ready.lua

@@ -1,46 +1,78 @@
-function table.indexOf(t, w)
+-- Standard Library in bot
+
+-- table.indexOf(table, value) - Get value of inverter value-key table.
+function table.indexOf(t, val)
   local i = {}
-  for k,v in pairs(t) do i[v] = k end
-  return i[w]
+  for k, v in pairs(t) do
+    i[v] = k
+  end
+  return i[val]
 end
 
-function table.find(t, w)
-  local i
-  for k,v in pairs(t) do
-    if v == w then
-      i = k
-      break
+-- table.find(table, value) - Return index if value matches.
+function table.find(t, val)
+  for k, v in pairs(t) do
+    if v == val then
+      return k
     end
   end
-  return i
 end
 
+-- table.findV(table, value) - return value in table matching value table
+function table.findV(t, val)
+  local b = nil
+  for _, v in pairs(t) do
+    for k, x in pairs(val) do
+      if x ~= v[k] then
+        b = 1
+        break
+      end
+    end
+    if b then
+      b = nil
+    else
+      return v
+    end
+  end
+end
+
+-- string.escp(string) - Escape reserved regex values
+function string.escp(s)
+  return s:gsub('[%^%$%%%(%)%.%[%]%*%+%-%?]', '%%%0')
+end
+
+-- dump(table, depth?) - Return string that shows table contents.
 function dump(t, d)
-  if not tonumber(d) or d < 0 then d = 0 end
+  if not tonumber(d) or d < 0 then
+    d = 0
+  end
   local c = ''
-  for k,v in pairs(t) do
-    if type(v) == 'table' then v = '\n' .. dump(v, d + 1) end
-    c = c .. string.format('%s%s = %s\n', (' '):rep(d), k, v)
+  for k, v in pairs(t) do
+    if type(v) == 'table' then
+      v = '\n' .. dump(v, d + 1)
+    elseif type(v) == 'userdata' then
+      v = '<USERDATA>'
+    end
+    c = c .. ('%s%s = %s\n'):format((' '):rep(d), k, v)
   end
   return c
 end
 
 return function(C, api)
   C:load 'cmds'
-  local a = {}
-  for k, v in pairs(C.cmds) do
-    if not (v.private or v.hide) then
-      local cmd = C.locale:get('cmds', k) or {}
-      table.insert(a, {
-        command = k,
-        description = (cmd.args and cmd.args .. ' - ' or '') .. (cmd.desc or C.locale:get('cmds', 'not_des'))
-      })
-    end
-  end
-  api:setMyCommands(a)
 
-  a = {'levels', }
-  for i = 1, #a do
-    if not C.db[a[i]] then C.db[a[i]] = {} end
+  for _, lang in pairs(C.locale.list) do
+    local a = {}
+    for k, v in pairs(C.cmds) do
+      if not (v.private or v.hide) then
+        local cmd = C.locale:get('cmds', k, lang or {})
+        table.insert(a, {
+          command = k,
+          description = (cmd.args and cmd.args .. ' - ' or '') .. (cmd.desc or C.locale:get('cmds', 'not_des'))
+        })
+      end
+    end
+    api:setMyCommands(a, lang)
   end
-end
+end
+

src/locales/ar.json

@@ -0,0 +1,40 @@
+{
+  "error": {
+    "inv_cmd": "تم تحديد أمر غير معروف.",
+    "adm_cmd": "لا يمكنك تنفيذ أوامر المسؤول!",
+    "cmd_run": "لا يمكن تنفيذ هذا الأمر الآن.",
+    "not_suc": "حدث خطأ وتم إرساله إلى المنشئ.",
+    "unk_err": "خطأ غير معروف.",
+    "req_err": "فشل الطلب."
+  },
+  "cmds": {
+    "not_des": "بدون وصف",
+
+    "eval": {
+      "args": "<الرمز>",
+      "desc": "ينفذ الكود"
+    },
+    "shell": {
+      "args": "<الرمز>",
+      "desc": "ينفذ التعليمات البرمجية في غلاف يونكس"
+    },
+    "ping": {
+      "desc": "بينج بونج",
+
+      "pat": "بونغ! %d ثانية. الجهوزية: %.1f يوم (%.1f ساعة ، %.1f دقيقة)"
+    },
+    "rub": {
+      "args": "[عملة]...",
+      "desc": "سعر صرف الروبل",
+
+      "cur": "متوجها %s:\n%s",
+      "notf": "\n لا يوجد لا تجد: ",
+      "prov": "\n البيانات مقدمة من البنك المركزي لروسيا."
+    },
+    "start": {
+      "desc": "بداية العمل",
+
+      "msg": "يا! أنا Computer - بوت مفتوح المصدر.\n إذا كنت تبحث عن مصادر: https://gitdab.com/er2/comp-tg"
+    }
+  }
+}

src/locales/en.json

@@ -14,10 +14,14 @@
       "args": "<code>",
       "desc": "executes code"
     },
+    "shell": {
+      "args": "<code>",
+      "desc": "executes code in Unix shell"
+    },
     "ping": {
       "desc": "ping pong",
 
-      "pat": "Pong! %ds"
+      "pat": "Pong! %ds. Uptime: %.1f days (%.1fh, %.1fm.)"
     },
     "rub": {
       "args": "[valute]...",
@@ -26,6 +30,11 @@
       "cur": "Currency at %s:\n%s",
       "notf": "\nNot found: ",
       "prov": "\nData provided from central bank of Russia."
+    },
+    "start": {
+      "desc": "getting started",
+
+      "msg": "Hi! I'm Computer - an open-source bot.\nIf you looking for source code: https://gitdab.com/er2/comp-tg"
     }
   }
 }

src/locales/ru.json

@@ -14,10 +14,14 @@
       "args": "<код>",
       "desc": "исполняет код"
     },
+    "shell": {
+      "args": "<код>",
+      "desc": "исполняет код в Unix shell"
+    },
     "ping": {
       "desc": "пинг-понг",
 
-      "pat": "Понг! %d секунд"
+      "pat": "Понг! %dс. В сети: %.1f дней (%.1fч, %.1fм.)"
     },
     "rub": {
       "args": "[валюта]...",
@@ -26,6 +30,11 @@
       "cur": "Курс на %s:\n%s",
       "notf": "\nНе нашлось: ",
       "prov": "\nДанные предоставлены центральным банком России."
+    },
+    "start": {
+      "desc": "начало работы",
+
+      "msg": "Привет! Я Computer - бот с открытым исходным кодом.\nЕсли ты ищешь исходники: https://gitdab.com/er2/comp-tg"
     }
   }
 }

src/parts/client.lua

@@ -1,35 +1,29 @@
-local tg = require 'etc.api'
-
-return function(Core)
-  local self = Core
-  
-  self.api = tg { norun = true }
-  self.cmds = {}
+require 'etc.api'
 
+return function(C)
+  C.api = new 'API' {
+    norun = true,
+  }
   print 'Client initialization...'
-
-  function Core._ev(ev, ...) self:ev(...) end
-  function self.api._ev(_, t, i, n, ...)
-    self._ev(_, t, i, n, self.api, ...)
+  C.api._ev = function(_, t, i, name, ...)
+    return C:_ev(t, i, name, C.api, ...)
   end
 
-  self:load 'events'
+  C:load 'events'
 
-  self.api:login(self.config.token, function()
-    print('Logged on as @' .. self.api.info.username)
-    self.config.token = nil
-    self.api:emit 'ready'
+  C.api:login(C.config.token, function()
+    print('Logged on as @'.. C.api.info.username)
+    C.config.token = nil
+    C.api:emit 'ready'
   end)
 
-  local offs, o = 0
-  self.api.runs = true
-  self:on('ready', function()
-    while self.api.runs do
-      self:emit 'tick'
-
-      o = self.api:_getUpd(1, offs, 0)
-      offs = o and o or offs
+  local offset = 0
+  C.api.runs = true
+  C:on('ready', function()
+    while C.api.runs do
+      C:emit 'tick'
+      offset = C.api:recvUpdate(1, offset, 0)
     end
-    self.api:getUpdates(1, offs, 0)
   end)
 end
+

src/parts/core.lua

@@ -1,47 +1,62 @@
-local config = require 'config'
+local config = require 'config'
+require 'etc.events'
+require 'class'
 
-local Core = {
+class 'Core' : inherits 'EventsThis' {
   config = config,
-}
-(require 'etc.events')(Core) -- add events
+  loaded = 0,
+  cmds = {},
 
-function Core:load(what)
-  local c = config[what]
-  local s = #c
-  for i = 1, s do
-    local v = c[i]
+  function(this)
+    this:super()
+    this:load 'parts'
+    utf8 = require 'etc.utf8'
+    require 'etc.utf8data'
+    utf8.config = {
+      conversion = {
+        uc_lc = utf8_uc_lc,
+        lc_uc = utf8_lc_uc
+      }
+    }
+    utf8:init()
+    print 'Done!'
+    this:emit 'ready'
+  end,
 
-    print(('Loading %s (%d / %d) %s...'):format(what:sub(0, -2), i, s, v))
-    -- Lint
-    if true then 
-    --pcall(require, 'src.'.. what ..'.'.. v) then
-      local a=require('src.'.. what ..'.'.. v)
-      if     what == 'events' then self.api:on(v, a)
-      elseif what == 'cmds'   then self.cmds[v] = a
-      elseif what == 'parts'  then a(self)
+  stop = function(this)
+    this.api:destroy()
+    print 'Stopped'
+    print('Uptime: ' .. (os.time() - self.loaded) .. ' seconds')
+  end,
+
+  load = function(this, what)
+    local c = config[what]
+    for i = 1, #c do
+      local v = c[i]
+      print('Loading ' .. what:sub(0, -2) ..' (' .. i ..' / '.. #c ..') ' .. v ..'...')
+
+      -- Lint?
+      local e, a = pcall(require, 'src.' .. what ..'.'.. v)
+      print(e, a)
+
+      if e then
+        if what == 'events'
+        then this.api:on(v, a)
+
+        elseif what == 'cmds'
+        then this.cmds[v] = a
+
+        elseif what == 'parts'
+        then a(this)
+        end
+
+      else print 'fail'
       end
-    else print 'fail' end
-  end
-  print(('Loaded %d %s'):format(s, what))
-end
-
-function Core:ev(t, i, name, ...)
-  local v = t[i]
-  if v.name == name then
-    local succ, err = pcall(v.fn, self, ...)
-    if not succ then
-      print('event "' .. name .. '" was failed')
-      print(err)
     end
-    if v.type == 'once' then table.remove(t, i) end
-  end
-end
+    print('Loaded '.. #c ..' '.. what)
+    this.loaded = os.time()
+  end,
+}
 
-function Core:init()
-  self:load 'parts'
+local core = new 'Core' ()
 
-  print 'Done!'
-  self:emit 'ready'
-end
-
-Core:init()

src/parts/db.lua

@@ -1,16 +0,0 @@
-return function(Core)
-local path = 'etc/db' -- from root
-local time = 60 * 5   -- 5min
-
-Core.db = require 'etc.db' (path)
-
-local t = os.time()
-Core:on('tick', function()
-  if os.time() - t >= time then
-    t = os.time()
-    print 'saving...'
-    Core.db:save()
-  end
-end)
-
-end

src/parts/locale.lua

@@ -1,33 +1,36 @@
-local Locale = {
+class 'Locale' {
+  __newindex = function() end,
   list = {
     'en',
-    'ru'
+    'ru',
+    'ar',
   },
   main = 'en',
 
-  __newindex = function()end -- ro
+  __init = function(this)
+    local json = require 'etc.json'
+    for i = 1, #this.list do
+      local n = this.list[i]
+      local f = io.open('src/locales/'.. n ..'.json')
+      this[n] = json.decode(f:read 'a')
+    end
+  end,
+
+  function(this, C)
+    C.locale = this
+  end,
+
+  get = function(this, category, key, lang)
+    assert(category, 'Category not provided')
+    assert(key, 'Key not provided')
+    lang = lang or this.main
+    local v = (this[lang] or {})[category]
+    if not v
+    then return this[this.main][category][key] or ''
+    else return v[key] or ''
+    end
+  end,
 }
-Locale.__index = Locale
 
-function Locale:get(cat, k, lang)
-  assert(cat, 'Give category')
-  assert(k,   'Give key')
-  lang = lang or self.main
+return new 'Locale'
 
-  local v = (self[lang] or {})[cat]
-  if not v then
-    return self[self.main][cat][k]
-  else return v[k] end
-end
-
-return function(C)
-  local json = require 'etc.json'
-
-  for i = 1, #Locale.list do
-    local n = Locale.list[i]
-    local f = io.open(('src/locales/%s.json'):format(n))
-    Locale[n] = json.decode(f:read 'a')
-  end
-
-  C.locale = setmetatable({}, Locale)
-end