# frozen_string_literal: true

class PostSerializer < ActiveModel::Serializer
  def tags
    tags = {}
    TagCategory::REVERSE_MAPPING.each do |category_id, category_name|
      tags[category_name] = object.typed_tags(category_id)
    end
    tags
  end

  def file
    file_attributes = {
        width: object.image_width,
        height: object.image_height,
        ext: object.file_ext,
        size: object.file_size,
        md5: object.md5,
        url: nil
    }
    if object.visible?
      file_attributes[:url] = object.file_url
    end
    file_attributes
  end

  def preview
    dims = object.preview_dimensions
    preview_attributes = {
        width: dims[1],
        height: dims[0],
        url: nil
    }
    if object.visible?
      preview_attributes[:url] = object.preview_file_url
    end
    preview_attributes
  end

  def sample
    alternates = {}
    Danbooru.config.video_rescales.each do |k,v|
      next unless object.has_sample_size?(k)
      dims = object.scaled_sample_dimensions(v)
      alternates[k] = {
          type: 'video',
          height: dims[1],
          width: dims[0],
          urls: object.visible? ? [object.scaled_url_ext(k, 'webm'), object.scaled_url_ext(k, 'mp4')] : [nil, nil]
      }
    end
    if object.has_sample_size?('original')
      fixed_dims = object.scaled_sample_dimensions([object.image_width, object.image_height])
      alternates['original'] = {
          type: 'video',
          height: fixed_dims[1],
          width: fixed_dims[0],
          urls: object.visible? ? [nil, object.file_url_ext('mp4')] : [nil, nil]
      }
    end
    Danbooru.config.image_rescales.each do |k,v|
      next unless object.has_sample_size?(k)
      dims = object.scaled_sample_dimensions(v)
      alternates[k] = {
          type: 'image',
          height: dims[1],
          width: dims[0],
          url: object.visible? ? object.scaled_url_ext(k, 'jpg') : nil
      }
    end
    sample_attributes = {
        has: object.has_large?,
        height: object.large_image_height,
        width: object.large_image_width,
        url: nil,
        alternates: alternates
    }
    if object.visible?
      sample_attributes[:url] = object.large_file_url
    end
    sample_attributes
  end

  def score
    {
        up: object.up_score,
        down: object.down_score,
        total: object.score
    }
  end

  def flags
    {
        pending: object.is_pending,
        flagged: object.is_flagged,
        note_locked: object.is_note_locked,
        status_locked: object.is_status_locked,
        rating_locked: object.is_rating_locked,
        deleted: object.is_deleted
    }
  end

  def sources
    object.source.split("\n")
  end

  def pools
    object.pool_ids
  end

  def relationships
    {
        parent_id: object.parent_id,
        has_children: object.has_children,
        has_active_children: object.has_active_children,
        children: object.children_ids&.split&.map(&:to_i) || []
    }
  end

  def locked_tags
    object.locked_tags&.split || []
  end

  def is_favorited
    object.is_favorited?
  end

  def has_notes
    object.has_notes?
  end

  def duration
    object.duration ? object.duration.to_f : nil
  end

  def comment_count
    object.visible_comment_count(CurrentUser)
  end

  attributes :id, :created_at, :updated_at, :file, :preview, :sample, :score, :tags, :locked_tags, :change_seq, :flags,
             :rating, :fav_count, :sources, :pools, :relationships, :approver_id, :uploader_id, :title, :description,
             :transcript, :comment_count, :is_favorited, :has_notes, :duration
end