Class: Tgbot

Inherits:
Object
  • Object
show all
Defined in:
lib/tgbot.rb,
lib/tgbot/version.rb

Defined Under Namespace

Classes: Update

Constant Summary collapse

APIDOC = 
Psych.load_file File.join __dir__, 'api.yaml'
VERSION = 
'0.4.6'.freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(token, proxy: nil, debug: false) ⇒ Tgbot

Returns a new instance of Tgbot.



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# File 'lib/tgbot.rb', line 20

def initialize(token, proxy: nil, debug: false)
  @prefix = "/bot#{token}"
  @client = HTTP.persistent "https://api.telegram.org"
  if proxy
    addr, port = *proxy.split(':')
    @client = @client.via(addr, port.to_i)
  end
  @debug = debug
  @commands = []
  @start = @finish = nil
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(meth, *args, &blk) ⇒ Object (private) 



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# File 'lib/tgbot.rb', line 187

def method_missing meth, *args, &blk
  meth = meth.to_s.split('_').map.
    with_index { |x, i| i.zero? ? x : (x[0].upcase + x[1..-1]) }.join
  payload = make_payload meth, *args
  debug "/#{meth} #{payload}"
  result = @client.post("#@prefix/#{meth}", form: payload).to_s
  result = json_to_ostruct(result)
  debug "=> #{result}"
  blk ? blk.call(result) : result
end

Instance Attribute Details

#debug(msg) ⇒ Object

Returns the value of attribute debug.



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# File 'lib/tgbot.rb', line 18

def debug
  @debug
end

Class Method Details

.run(*args, &blk) ⇒ Object 



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# File 'lib/tgbot.rb', line 12

def self.run(*args, &blk)
  bot = new(*args)
  bot.instance_exec(bot, &blk) if blk
  bot.run
end

Instance Method Details

#api_version ⇒ Object 



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# File 'lib/tgbot.rb', line 181

def api_version
  search_in_doc(/changes/i, '')[0].desc[0].content[/\d+\.\d+/]
end

#finish(&blk) ⇒ Object 



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# File 'lib/tgbot.rb', line 36

def finish &blk
  @finish = blk
end

#on(pattern = nil, name: nil, before_all: false, after_all: false, &blk) ⇒ Object 



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# File 'lib/tgbot.rb', line 40

def on pattern=nil, name: nil, before_all: false, after_all: false, &blk
  if before_all && after_all
    raise ArgumentError, 'before_all and after_all can\'t both be true'
  end
  @commands << [pattern, name, before_all, after_all, blk]
end

#run(&blk) ⇒ Object 



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# File 'lib/tgbot.rb', line 148

def run &blk
  @offset = 0
  @timeout = 2
  @updates = []
  instance_exec(self, &@start) if @start
  loop do
    while x = @updates.shift
      u = Update === x ? x : Update.new(self, x)
      @offset = u.update_id if u.update_id && @offset < u.update_id
      @tasks = @commands.select { |pattern, *| u.match? pattern }
        .group_by { |e| e[2] ? :before : e[3] ? :after : nil }
        .values_at(:before, nil, :after).compact.flatten(1)
      while t = @tasks.shift
        debug ">> #{t[1] || t[0]}"
        u.instance_exec(u.match(t[0]), u, t, &t[4])
      end
    end
    res = get_updates offset: @offset + 1, limit: 7, timeout: 15
    if res.ok
      @updates.push *res.result
    else
      debug "#{res.error_code}: #{res.description}"
    end
  end
rescue HTTP::ConnectionError
  debug "connect failed, check proxy?"
  retry
rescue Interrupt
  instance_exec(self, &@finish) if @finish
ensure
  @client.close
end

#start(&blk) ⇒ Object 



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# File 'lib/tgbot.rb', line 32

def start &blk
  @start = blk
end