# frozen_string_literal: true

class CorrectDedicationContacts < ActiveRecord::Migration[4.2]
  def up
    json_dedications = Qx.select('id', 'dedication').from(:donations)
                         .where("dedication IS NOT NULL AND dedication != ''")
                         .and_where('is_valid_json(dedication)').ex
    parsed_dedications = json_dedications.map { |i| { id: i['id'], dedication: JSON.parse(i['dedication']) } }
    with_contact_to_correct = parsed_dedications.select { |i| !i[:dedication]['contact'].blank? && i[:dedication]['contact'].is_a?(String) }
    really_icky_dedications, easy_to_split_strings = with_contact_to_correct.partition { |i| i[:dedication]['contact'].split(' - ').count > 3 }

    easy_to_split_strings.map do |i|
      split_contact = i[:dedication]['contact'].split(' - ')
      i[:dedication]['contact'] = {
        email: split_contact[0],
        phone: split_contact[1],
        address: split_contact[2]
      }
      puts i
      i
    end.each_with_index do |i, index|
      unless i[:id]
        raise Error("Item at index #{index} is invalid. Object:#{i}")
      end

      Qx.update(:donations).where('id = $id', id: i[:id]).set(dedication: JSON.generate(i[:dedication])).ex
    end

    puts "Corrected #{easy_to_split_strings.count} records."

    puts ''
    puts ''
    puts 'You must manually fix the following dedications: '
    really_icky_dedications.each do |i|
      puts i
    end
  end

  def down
    json_dedications = Qx.select('id', 'dedication').from(:donations)
                         .where("dedication IS NOT NULL AND dedication != ''")
                         .and_where('is_valid_json(dedication)').ex

    parsed_dedications = json_dedications.map { |i| { 'id' => i['id'], 'dedication' => JSON.parse(i['dedication']) } }

    with_contact_to_correct = parsed_dedications.select { |i| i['dedication']['contact'].is_a?(Hash) }

    puts "#{with_contact_to_correct.count} to revert"
    with_contact_to_correct.each do |i|
      contact_string = "#{i['dedication']['contact']['email']} - #{i['dedication']['contact']['phone']} - #{i['dedication']['contact']['address']}"
      i['dedication']['contact'] = contact_string
      Qx.update(:donations).where('id = $id', id: i['id']).set(dedication: JSON.generate(i['dedication'])).ex
    end
  end
end