desc "Application specific tasks"
namespace :saucy do
  desc "Background sync operations"
  task sync: :environment do
    SyncJob.perform_now
  end

  desc "Send daily email notifications"
  task notify: :environment do
    NotifyJob.perform_now
  end

  desc "Import data from CiviCRM XML files"
  task import: :environment do
    require 'nokogiri'
    require 'date'

    Notification.delete_all
    Contribution.delete_all
    Member.delete_all

    def sql_resultset_to_hashes(resultset_filename)
      Nokogiri::XML(File.read(resultset_filename))
        .xpath('resultset/row')
        .map do |row|
          row
            .xpath('field')
            .map { |field| [field["name"], field.children.size > 0 ? field.text : nil] }
            .to_h
        end
    end

    def ensure_one(list)
      raise if list.size > 1

      list[0]
    end

    dir = ENV.fetch('CIVICRM_DUMP_DIRECTORY')
    addresses = sql_resultset_to_hashes("#{dir}/address.xml").select { |a| a["is_primary"] == "1" }
    contacts = sql_resultset_to_hashes("#{dir}/contact.xml")
    contributions = sql_resultset_to_hashes("#{dir}/contribution.xml")
    emails = sql_resultset_to_hashes("#{dir}/email.xml").select { |a| a["is_primary"] == "1" }
    memberships = sql_resultset_to_hashes("#{dir}/membership.xml").select { |m| Date.parse(m['end_date']).year >= 2020 }
    payment_instruments = sql_resultset_to_hashes("#{dir}/payment_instrument.xml")
    statuses = sql_resultset_to_hashes("#{dir}/status.xml")
    types = sql_resultset_to_hashes("#{dir}/type.xml")


    members = contacts.map do |contact|
      contact.merge(
        "membership" => memberships.select { |m| m['contact_id'] == contact['id'] }.then { |ms| ensure_one(ms) },
        "address" => addresses.select { |a| a['contact_id'] == contact['id'] }.then { |ms| ensure_one(ms) },
        "email" => emails.select { |a| a['contact_id'] == contact['id'] }.then { |ms| ensure_one(ms) },
        "contributions" => contributions.select { |c| c['contact_id'] == contact['id'] },
      )
    end

    members = members.select { |m| !m['membership'].nil? }

    raise "we have duplicates" unless members.map { |m| m['display_name'] }.count == members.map { |m| m['display_name'] }.uniq.count

    members.each do |member|
      address = member['address']

      address = if address
        postal_code = [
          address['postal_code'],
          address['postal_code_suffix']
        ].reject(&:nil?).reject(&:empty?).join('-')

        [
          address['street_address'],
          address['supplemental_address_1'],
          address['supplemental_address_2'],
          address['supplemental_address_3'],
          "#{postal_code} #{address['city']}",
        ].reject(&:nil?).reject(&:empty?).join("\n")
      else
        nil
      end

      category = case member['membership']['membership_type_id']
        when "1" then 'student'
        when "2" then 'employed'
        when "3" then 'retired'
        when "4" then 'unemployed'
        else raise "derp membership type"
      end

      m = Member.new(
        number: member['membership']['id'],
        email: member['email']['email'],
        display_name: member['display_name'],
        identification_number: member['legal_identifier'],
        status: "", # must be reset
        category: category, # membership type id
        address: address,
        joined_on: member['membership']['join_date'],
        expires_on: member['membership']['end_date'],
        #t.string "regular_ifthenpay_link"
        #t.string "reduced_ifthenpay_link"
        excluded: false,
        wants_mailing_list: true,
        prefers_postal: false,
      )

      m.save!

      m.reset_status!

      member['contributions'].each do |contribution|
        c = Contribution.new(
          member: m,
          eurocents: contribution['total_amount'],
          payment_on: contribution['receive_date'] || m.joined_on,
          payment_method: payment_instruments.find { |i| i["value"] == contribution['payment_instrument_id'] }["name"],
          payment_reference: "",
        )

        c.save!
      end
    end
  end
end