class PostImportRunner
  def initialize actor:, rows:
    @actor = actor
    @rows = rows
  end

  def run
    results = @rows.map { |row| run_row(row.to_h.stringify_keys) }
    { created: results.count { _1[:status] == 'created' }, skipped: results.count { _1[:status] == 'skipped' },
      failed: results.count { _1[:status] == 'failed' }, rows: results }
  end

  private

  def run_row row
    return row.slice('source_row').merge(status: 'skipped') if row['status'] == 'skipped' || row['existing']
    attributes = row.fetch('attributes', { }).to_h.transform_keys { _1.to_s.underscore }
    attributes['url'] = row['url']
    post = PostCreator.new(actor: @actor, attributes:).create!
    { source_row: row['source_row'], status: 'created', post: PostRepr.base(post) }
  rescue StandardError => e
    { source_row: row['source_row'], status: 'failed', errors: { base: [e.message] } }
  end
end