photo.rb

# frozen_string_literal: true

#   Copyright (c) 2009, Diaspora Inc.  This file is
#   licensed under the Affero General Public License version 3 or later.  See
#   the COPYRIGHT file.

class Photo < ApplicationRecord
  include Diaspora::Federated::Base
  include Diaspora::Commentable
  include Diaspora::Shareable

  # NOTE API V1 to be extracted
  acts_as_api
  api_accessible :backbone do |t|
    t.add :id
    t.add :guid
    t.add :created_at
    t.add :author
    t.add lambda { |photo|
      {
        small:  photo.url(:thumb_small),
        medium: photo.url(:thumb_medium),
        large:  photo.url(:scaled_full),
        raw:    photo.url
      }
    }, :as => :sizes
    t.add lambda { |photo|
      {
        height: photo.height,
        width:  photo.width
      }
    }, as: :dimensions
    t.add lambda { |photo|
      {
        id: photo.status_message.id
      } if photo.status_message
    }, as: :status_message
  end

  mount_uploader :processed_image, ProcessedImage
  mount_uploader :unprocessed_image, UnprocessedImage

  belongs_to :status_message, foreign_key: :status_message_guid, primary_key: :guid, optional: true
  validates_associated :status_message
  delegate :author_name, to: :status_message, prefix: true

  validate :ownership_of_status_message

  before_destroy :ensure_user_picture
  after_destroy :clear_empty_status_message

  after_commit :on => :create do
    queue_processing_job if self.author.local?

  end

  scope :on_statuses, ->(post_guids) {
    where(:status_message_guid => post_guids)
  }

  def clear_empty_status_message
    if self.status_message && self.status_message.text_and_photos_blank?
      self.status_message.destroy
    else
      true
    end
  end

  def ownership_of_status_message
    message = StatusMessage.find_by_guid(self.status_message_guid)
    if self.status_message_guid && message
      self.diaspora_handle == message.diaspora_handle
    else
      true
    end
  end

  def self.diaspora_initialize(params={})
    photo = new(params.to_hash.stringify_keys.slice(*column_names, "author"))
    photo.random_string = SecureRandom.hex(10)

    photo.unprocessed_image.strip_exif = photo.author.owner.strip_exif

    if params[:user_file]
      image_file = params.delete(:user_file)
      photo.unprocessed_image.store! image_file
    elsif params[:image_url]
      photo.remote_unprocessed_image_url = params[:image_url]
      photo.unprocessed_image.store!
    end

    photo.update_remote_path

    photo
  end

  def processed?
    processed_image.path.present?
  end

  def update_remote_path
    unless self.unprocessed_image.url.match(/^https?:\/\//)
      remote_path = "#{AppConfig.pod_uri.to_s.chomp("/")}#{self.unprocessed_image.url}"
    else
      remote_path = self.unprocessed_image.url
    end

    name_start = remote_path.rindex '/'
    self.remote_photo_path = "#{remote_path.slice(0, name_start)}/"
    self.remote_photo_name = remote_path.slice(name_start + 1, remote_path.length)
  end

  def url(name = nil)
    if remote_photo_path
      name = name.to_s + '_' if name
      image_url = remote_photo_path + name.to_s + remote_photo_name
      if AppConfig.privacy.camo.proxy_remote_pod_images?
        Diaspora::Camo.image_url(image_url)
      else
        image_url
      end
    elsif processed?
      processed_image.url(name)
    else
      unprocessed_image.url(name)
    end
  end

  def ensure_user_picture
    profiles = Profile.where(:image_url => url(:thumb_large))
    profiles.each { |profile|
      profile.image_url = nil
      profile.save
    }
  end

  def queue_processing_job
    Workers::ProcessPhoto.perform_async(self.id)
  end

  def self.visible(current_user, person, limit=:all, max_time=nil)
    photos = if current_user
               current_user.photos_from(person, limit: limit, max_time: max_time)
             else
               Photo.where(author_id: person.id, public: true)
             end
    photos.where(pending: false).order("created_at DESC")
  end
end