Class: SmartTodo::Dispatchers::Slack

Inherits:
Base
  • Object
show all
Defined in:
lib/smart_todo/dispatchers/slack.rb

Overview

Dispatcher that sends TODO reminders on Slack. Assignees can be either individual (using the associated slack email address) or a channel.

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

class_for, #initialize

Constructor Details

This class inherits a constructor from SmartTodo::Dispatchers::Base

Class Method Details

.validate_options!(options) ⇒ Object 



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# File 'lib/smart_todo/dispatchers/slack.rb', line 9

def validate_options!(options)
  options[:slack_token] ||= ENV.fetch("SMART_TODO_SLACK_TOKEN") { raise(ArgumentError, "Missing :slack_token") }

  options.fetch(:fallback_channel) { raise(ArgumentError, "Missing :fallback_channel") }
end

Instance Method Details

#dispatch ⇒ Array

Make a Slack API call to dispatch the message to each assignee

Returns:

  • (Array) —

    Slack response for each assignee a message was sent to

Raises:

  • (SlackClient::Error) —

    in case the Slack API returns an error other than ‘users_not_found`



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# File 'lib/smart_todo/dispatchers/slack.rb', line 22

def dispatch
  @assignees.each do |assignee|
    dispatch_one(assignee)
  end
end

#dispatch_one(assignee) ⇒ Hash

Make a Slack API call to dispatch the message to the user or channel

Parameters:

  • the (String) —

    assignee handle string

Returns:

  • (Hash) —

    the Slack response

Raises:

  • (SlackClient::Error) —

    in case the Slack API returns an error other than ‘users_not_found`



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# File 'lib/smart_todo/dispatchers/slack.rb', line 35

def dispatch_one(assignee)
  user = slack_user_or_channel(assignee)

  client.post_message(user.dig("user", "id"), slack_message(user, assignee))
rescue SlackClient::Error => error
  if ["users_not_found", "channel_not_found", "is_archived"].include?(error.error_code)
    user = { "user" => { "id" => @options[:fallback_channel] }, "fallback" => true }
  else
    raise(error)
  end

  client.post_message(user.dig("user", "id"), slack_message(user, assignee))
end