# frozen_string_literal: true

class DuplicateReportCreationValidator < ActiveModel::Validator
  def validate(record)
    is_image = record.post&.media_type == 'image'
    if record.post.nil?
      record.errors.add :base, I18n.t('duplicate_reports.errors.image_nil')
    elsif record.duplicate_of_post.nil?
      record.errors.add :base, I18n.t('duplicate_reports.errors.target_image_nil')
    elsif record.post_id == record.duplicate_of_post_id
      record.errors.add :base, I18n.t('duplicate_reports.errors.identical_images')
    elsif record.post.media_type != record.duplicate_of_post.media_type
      record.errors.add :base, I18n.t('duplicate_reports.errors.different_types')
    elsif is_image && (record.post.image.is_animated? != record.duplicate_of_post.image.is_animated?)
      record.errors.add :base, I18n.t('duplicate_reports.errors.animated_and_still_image')
    elsif is_image && [record.post.mime_type, record.duplicate_of_post.image.mime_type].include?('video/webm') && record.post.image.mime_type != record.duplicate_of_post.image.mime_type
      record.errors.add :base, I18n.t('duplicate_reports.errors.webm_and_other')
    elsif DuplicateReport.exists?(post_id: record.post_id, duplicate_of_post_id: record.duplicate_of_post_id)
      record.errors.add :base, I18n.t('duplicate_reports.errors.target_already_reported')
    end
  end
end