module Slack::Web::Api::Endpoints::Chat

def chat_command(options = {})
  throw ArgumentError.new('Required arguments :channel missing') if options[:channel].nil?
  throw ArgumentError.new('Required arguments :command missing') if options[:command].nil?
  options = options.merge(channel: channels_id(options)['channel']['id']) if options[:channel]
  logger.warn('The chat.command method is undocumented.')
  post('chat.command', options)
end

def chat_delete(options = {})
  throw ArgumentError.new('Required arguments :channel missing') if options[:channel].nil?
  throw ArgumentError.new('Required arguments :ts missing') if options[:ts].nil?
  options = options.merge(channel: channels_id(options)['channel']['id']) if options[:channel]
  post('chat.delete', options)
end

def chat_deleteScheduledMessage(options = {})
  throw ArgumentError.new('Required arguments :channel missing') if options[:channel].nil?
  throw ArgumentError.new('Required arguments :scheduled_message_id missing') if options[:scheduled_message_id].nil?
  options = options.merge(channel: channels_id(options)['channel']['id']) if options[:channel]
  post('chat.deleteScheduledMessage', options)
end

def chat_getPermalink(options = {})
  throw ArgumentError.new('Required arguments :channel missing') if options[:channel].nil?
  throw ArgumentError.new('Required arguments :message_ts missing') if options[:message_ts].nil?
  options = options.merge(channel: channels_id(options)['channel']['id']) if options[:channel]
  post('chat.getPermalink', options)
end

def chat_meMessage(options = {})
  throw ArgumentError.new('Required arguments :channel missing') if options[:channel].nil?
  throw ArgumentError.new('Required arguments :text missing') if options[:text].nil?
  post('chat.meMessage', options)
end

def chat_postEphemeral(options = {})
  throw ArgumentError.new('Required arguments :channel missing') if options[:channel].nil?
  throw ArgumentError.new('Required arguments :text, :attachments or :blocks missing') if options[:text].nil? && options[:attachments].nil? && options[:blocks].nil?
  throw ArgumentError.new('Required arguments :user missing') if options[:user].nil?
  options = options.merge(user: users_id(options)['user']['id']) if options[:user]
  # attachments must be passed as an encoded JSON string
  if options.key?(:attachments)
    attachments = options[:attachments]
    attachments = JSON.dump(attachments) unless attachments.is_a?(String)
    options = options.merge(attachments: attachments)
  end
  # blocks must be passed as an encoded JSON string
  if options.key?(:blocks)
    blocks = options[:blocks]
    blocks = JSON.dump(blocks) unless blocks.is_a?(String)
    options = options.merge(blocks: blocks)
  end
  post('chat.postEphemeral', options)
end

def chat_postMessage(options = {})
  throw ArgumentError.new('Required arguments :channel missing') if options[:channel].nil?
  throw ArgumentError.new('Required arguments :text, :attachments or :blocks missing') if options[:text].nil? && options[:attachments].nil? && options[:blocks].nil?
  # attachments must be passed as an encoded JSON string
  if options.key?(:attachments)
    attachments = options[:attachments]
    attachments = JSON.dump(attachments) unless attachments.is_a?(String)
    options = options.merge(attachments: attachments)
  end
  # blocks must be passed as an encoded JSON string
  if options.key?(:blocks)
    blocks = options[:blocks]
    blocks = JSON.dump(blocks) unless blocks.is_a?(String)
    options = options.merge(blocks: blocks)
  end
  post('chat.postMessage', options)
end

def chat_scheduleMessage(options = {})
  throw ArgumentError.new('Required arguments :channel missing') if options[:channel].nil?
  throw ArgumentError.new('Required arguments :post_at missing') if options[:post_at].nil?
  throw ArgumentError.new('Required arguments :text missing') if options[:text].nil?
  post('chat.scheduleMessage', options)
end

def chat_unfurl(options = {})
  throw ArgumentError.new('Required arguments :channel missing') if options[:channel].nil?
  throw ArgumentError.new('Required arguments :ts missing') if options[:ts].nil?
  throw ArgumentError.new('Required arguments :unfurls missing') if options[:unfurls].nil?
  options = options.merge(channel: channels_id(options)['channel']['id']) if options[:channel]
  post('chat.unfurl', options)
end

def chat_update(options = {})
  throw ArgumentError.new('Required arguments :channel missing') if options[:channel].nil?
  throw ArgumentError.new('Required arguments :text, :attachments or :blocks missing') if options[:text].nil? && options[:attachments].nil? && options[:blocks].nil?
  throw ArgumentError.new('Required arguments :ts missing') if options[:ts].nil?
  options = options.merge(channel: channels_id(options)['channel']['id']) if options[:channel]
  # attachments must be passed as an encoded JSON string
  if options.key?(:attachments)
    attachments = options[:attachments]
    attachments = JSON.dump(attachments) unless attachments.is_a?(String)
    options = options.merge(attachments: attachments)
  end
  # blocks must be passed as an encoded JSON string
  if options.key?(:blocks)
    blocks = options[:blocks]
    blocks = JSON.dump(blocks) unless blocks.is_a?(String)
    options = options.merge(blocks: blocks)
  end
  post('chat.update', options)
end