117 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			117 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
# frozen_string_literal: true
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# == Schema Information
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#
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# Table name: account_conversations
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#
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#  id                      :bigint(8)        not null, primary key
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#  account_id              :bigint(8)
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#  conversation_id         :bigint(8)
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#  participant_account_ids :bigint(8)        default([]), not null, is an Array
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#  status_ids              :bigint(8)        default([]), not null, is an Array
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#  last_status_id          :bigint(8)
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#  lock_version            :integer          default(0), not null
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#  unread                  :boolean          default(FALSE), not null
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#
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class AccountConversation < ApplicationRecord
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  after_commit :push_to_streaming_api
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  belongs_to :account
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  belongs_to :conversation
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  belongs_to :last_status, class_name: 'Status'
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  before_validation :set_last_status
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  def participant_account_ids=(arr)
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    self[:participant_account_ids] = arr.sort
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  end
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  def participant_accounts
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    if participant_account_ids.empty?
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      [account]
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    else
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      Account.where(id: participant_account_ids)
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    end
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  end
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  class << self
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    def paginate_by_id(limit, options = {})
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      if options[:min_id]
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        paginate_by_min_id(limit, options[:min_id]).reverse
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      else
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        paginate_by_max_id(limit, options[:max_id], options[:since_id])
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      end
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    end
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    def paginate_by_min_id(limit, min_id = nil)
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      query = order(arel_table[:last_status_id].asc).limit(limit)
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      query = query.where(arel_table[:last_status_id].gt(min_id)) if min_id.present?
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      query
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    end
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    def paginate_by_max_id(limit, max_id = nil, since_id = nil)
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      query = order(arel_table[:last_status_id].desc).limit(limit)
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      query = query.where(arel_table[:last_status_id].lt(max_id)) if max_id.present?
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      query = query.where(arel_table[:last_status_id].gt(since_id)) if since_id.present?
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      query
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    end
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    def add_status(recipient, status)
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      conversation = find_or_initialize_by(account: recipient, conversation_id: status.conversation_id, participant_account_ids: participants_from_status(recipient, status))
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      return conversation if conversation.status_ids.include?(status.id)
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      conversation.status_ids << status.id
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      conversation.unread = status.account_id != recipient.id
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      conversation.save
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      conversation
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    rescue ActiveRecord::StaleObjectError
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      retry
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    end
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    def remove_status(recipient, status)
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      conversation = find_by(account: recipient, conversation_id: status.conversation_id, participant_account_ids: participants_from_status(recipient, status))
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      return if conversation.nil?
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      conversation.status_ids.delete(status.id)
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      if conversation.status_ids.empty?
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        conversation.destroy
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      else
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        conversation.save
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      end
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      conversation
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    rescue ActiveRecord::StaleObjectError
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      retry
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    end
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    private
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    def participants_from_status(recipient, status)
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      ((status.active_mentions.pluck(:account_id) + [status.account_id]).uniq - [recipient.id]).sort
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    end
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  end
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  private
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  def set_last_status
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    self.status_ids     = status_ids.sort
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    self.last_status_id = status_ids.last
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  end
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  def push_to_streaming_api
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    return if destroyed? || !subscribed_to_timeline?
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    PushConversationWorker.perform_async(id)
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  end
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  def subscribed_to_timeline?
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    Redis.current.exists("subscribed:#{streaming_channel}")
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  end
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  def streaming_channel
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    "timeline:direct:#{account_id}"
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  end
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end
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