class WhatsappBot

# File lib/whatsapp_bot.rb, line 6
def initialize
  @driver = Selenium::WebDriver.for :chrome
  @driver.get(URL)
  @driver.find_element(css: '[name="rememberMe"]').click
  @logged_in = false
end

# File lib/whatsapp_bot.rb, line 13
def logged_in?
  @logged_in
end

# File lib/whatsapp_bot.rb, line 25
def send_message(to:, text:)
  if (logged_in?)
    return send_text_message(to, text)
  else
    if (try_logging_in)
      return send_text_message(to, text)
    end
    puts "Not logged in"
    return false
  end
rescue Selenium::WebDriver::Error::NoSuchElementError => e
  puts "Couldnt find the user please check if name is correct or try again after some seconds"
  return false
end

# File lib/whatsapp_bot.rb, line 17
def try_logging_in
  @driver.find_element(class: "landing-title")
  @logged_in = false
  puts "Please log in with your phone in the chrome driver"
rescue Selenium::WebDriver::Error::NoSuchElementError => e
  @logged_in = true
end

# File lib/whatsapp_bot.rb, line 42
def send_text_message(to, text)
  @driver.find_element(css: "[title='#{to}']").click
  all_messages = text.split("\n")
  text_box = @driver.find_element(css: "[contenteditable='true']")
  all_messages.each do |message|
    begin
      text_box.send_keys(message)
    rescue Selenium::WebDriver::Error::UnknownError => e
      text_box.send_keys(message.encode("iso-8859-1", :invalid => :replace, :undef => :replace).encode("utf-8"))
    end
    text_box.send_keys [:shift, :enter]
  end
  @driver.find_element(css: 'span[data-icon="send"]').click
  return @driver.find_elements(css: ".message-out").last.text.include?(text)
end