# frozen_string_literal: true

class ExportTemplate < ApplicationRecord
  include TagsSubstitutionConcern

  self.ignored_columns += ["content"]

  belongs_to :groupe_instructeur
  has_one :procedure, through: :groupe_instructeur
  has_many :exports, dependent: :nullify

  enum kind: { zip: 'zip', csv: 'csv', xlsx: 'xlsx', ods: 'ods' }, _prefix: :template

  attribute :dossier_folder, :export_item
  attribute :export_pdf, :export_item
  attribute :pjs, :export_item, array: true

  attribute :exported_columns, :exported_column, array: true

  before_validation :ensure_pjs_are_legit

  validates_with ExportTemplateValidator

  DOSSIER_STATE = Dossier.states.fetch(:en_construction)

  # when a pj has been added to a revision, it will not be present in the previous pjs
  # a default value is provided.
  def pj(tdc)
    pjs.find { _1.stable_id == tdc.stable_id } || ExportItem.default_pj(tdc)
  end

  def self.default(name: nil, kind: 'zip', groupe_instructeur:)
    # TODO: remove default values for tabular export
    dossier_folder = ExportItem.default(prefix: 'dossier')
    export_pdf = ExportItem.default(prefix: 'export')
    pjs = groupe_instructeur.procedure.exportables_pieces_jointes.map { |tdc| ExportItem.default_pj(tdc) }

    new(name:, kind:, groupe_instructeur:, dossier_folder:, export_pdf:, pjs:)
  end

  def tabular?
    kind != 'zip'
  end

  def tags
    tags_categorized.slice(:individual, :etablissement, :dossier).values.flatten
  end

  def pj_tags
    tags.push(
      libelle: 'nom original du fichier',
      id: 'original-filename'
    )
  end

  def attachment_path(dossier, attachment, index: 0, row_index: nil, champ: nil)
    file_path = if attachment.name == 'pdf_export_for_instructeur'
      export_pdf.path(dossier, attachment:)
    elsif attachment.record_type == 'Champ' && pj(champ.type_de_champ).enabled?
      pj(champ.type_de_champ).path(dossier, attachment:, index:, row_index:)
    else
      nil
    end

    File.join(dossier_folder.path(dossier), file_path) if file_path.present?
  end

  def dossier_exported_columns = exported_columns.filter { _1.column.dossier_column? }

  def columns_for_stable_id(stable_id)
    exported_columns
      .filter { _1.column.champ_column? }
      .filter { _1.column.stable_id == stable_id }
  end

  def in_export?(exported_column)
    @template_exported_columns ||= exported_columns.map(&:column)
    @template_exported_columns.include?(exported_column.column)
  end

  private

  def ensure_pjs_are_legit
    legitimate_pj_stable_ids = procedure.exportables_pieces_jointes_for_all_versions.map(&:stable_id)

    self.pjs = pjs.filter { _1.stable_id.in?(legitimate_pj_stable_ids) }
  end
end