# frozen_string_literal: true

class StatusesIndex < Chewy::Index
  settings index: index_preset(refresh_interval: '30s', number_of_shards: 5), analysis: {
    filter: {
      english_stop: {
        type: 'stop',
        stopwords: '_english_',
      },

      english_stemmer: {
        type: 'stemmer',
        language: 'english',
      },

      english_possessive_stemmer: {
        type: 'stemmer',
        language: 'possessive_english',
      },
    },

    analyzer: {
      content: {
        tokenizer: 'uax_url_email',
        filter: %w(
          english_possessive_stemmer
          lowercase
          asciifolding
          cjk_width
          english_stop
          english_stemmer
        ),
      },
    },
  }

  # We do not use delete_if option here because it would call a method that we
  # expect to be called with crutches without crutches, causing n+1 queries
  index_scope ::Status.unscoped.kept.without_reblogs.includes(:media_attachments, :preloadable_poll, :preview_cards)

  crutch :mentions do |collection|
    data = ::Mention.where(status_id: collection.map(&:id)).where(account: Account.local, silent: false).pluck(:status_id, :account_id)
    data.each.with_object({}) { |(id, name), result| (result[id] ||= []).push(name) }
  end

  crutch :favourites do |collection|
    data = ::Favourite.where(status_id: collection.map(&:id)).where(account: Account.local).pluck(:status_id, :account_id)
    data.each.with_object({}) { |(id, name), result| (result[id] ||= []).push(name) }
  end

  crutch :reblogs do |collection|
    data = ::Status.where(reblog_of_id: collection.map(&:id)).where(account: Account.local).pluck(:reblog_of_id, :account_id)
    data.each.with_object({}) { |(id, name), result| (result[id] ||= []).push(name) }
  end

  crutch :bookmarks do |collection|
    data = ::Bookmark.where(status_id: collection.map(&:id)).where(account: Account.local).pluck(:status_id, :account_id)
    data.each.with_object({}) { |(id, name), result| (result[id] ||= []).push(name) }
  end

  crutch :votes do |collection|
    data = ::PollVote.joins(:poll).where(poll: { status_id: collection.map(&:id) }).where(account: Account.local).pluck(:status_id, :account_id)
    data.each.with_object({}) { |(id, name), result| (result[id] ||= []).push(name) }
  end

  root date_detection: false do
    field(:id, type: 'keyword')
    field(:account_id, type: 'long')
    field(:text, type: 'text', analyzer: 'whitespace', value: ->(status) { status.searchable_text }) { field(:stemmed, type: 'text', analyzer: 'content') }
    field(:searchable_by, type: 'long', value: ->(status, crutches) { status.searchable_by(crutches) })
    field(:language, type: 'keyword')
    field(:properties, type: 'keyword', value: ->(status) { status.searchable_properties })
    field(:created_at, type: 'date')
  end
end