module SlackMessage

# File lib/slack_message.rb, line 84
def self.build(profile_name = :default, &block)
  profile = Configuration.profile(profile_name)

  Dsl.new(block, profile).tap do |instance|
    instance.instance_eval(&block)
  end.send(:render)
end

# File lib/slack_message.rb, line 13
def self.configuration
  Configuration
end

# File lib/slack_message.rb, line 17
def self.configure(&block)
  configuration.configure(&block)
end

# File lib/slack_message.rb, line 71
def self.delete(message)
  unless message.is_a?(SlackMessage::Response)
    raise ArgumentError, "You must pass in a SlackMessage::Response to delete a message"
  end

  if message.sent_to_user?
    raise ArgumentError, "It's not possible to delete messages sent directly to users."
  end

  profile = Configuration.profile(message.profile_handle)
  Api.delete(message, profile)
end

# File lib/slack_message.rb, line 38
def self.post_as(profile_name, at: nil, &block)
  profile = Configuration.profile(profile_name)
  if profile[:default_channel].nil?
    raise ArgumentError, "Sorry, you need to specify a default_channel for profile #{profile_name} to use post_as"
  end

  target  = profile[:default_channel]
  payload = Dsl.new(block, profile).tap do |instance|
    instance.instance_eval(&block)
  end

  target  = Api::user_id_for(target, profile) if target =~ EMAIL_PATTERN

  Api.post(payload, target, profile, at)
end

# File lib/slack_message.rb, line 26
def self.post_to(target, as: :default, at: nil, &block)
  profile = Configuration.profile(as)

  payload = Dsl.new(block, profile).tap do |instance|
    instance.instance_eval(&block)
  end

  target  = Api::user_id_for(target, profile) if target =~ EMAIL_PATTERN

  Api.post(payload, target, profile, at)
end

# File lib/slack_message.rb, line 54
def self.update(message, &block)
  unless message.is_a?(SlackMessage::Response)
    raise ArgumentError, "You must pass in a SlackMessage::Response to update a message"
  end

  if message.scheduled?
    raise ArgumentError, "Sorry, scheduled messages cannot be updated. You will need to delete the message and schedule a new one."
  end

  profile = Configuration.profile(message.profile_handle)
  payload = Dsl.new(block, profile).tap do |instance|
    instance.instance_eval(&block)
  end

  Api.update(payload, message, profile)
end

# File lib/slack_message.rb, line 21
def self.user_id(email, profile_name = :default)
  profile = Configuration.profile(profile_name)
  Api.user_id_for(email, profile)
end