module Csv
  class MissingAddressesCsvService
    def initialize(organisation)
      @organisation = organisation
    end

    def create_missing_lettings_addresses_csv
      logs_with_missing_addresses = @organisation.managed_lettings_logs
      .imported
      .filter_by_year(2023)
      .where(needstype: 1, address_line1: nil, town_or_city: nil, uprn_known: [0, nil])
      .where.not(old_form_id: nil)

      logs_with_missing_town_or_city = @organisation.managed_lettings_logs
      .imported
      .filter_by_year(2023)
      .where(needstype: 1, town_or_city: nil, uprn_known: [0, nil])
      .where.not(old_form_id: nil)
      .where.not(address_line1: nil)

      logs_with_wrong_uprn = @organisation.managed_lettings_logs
      .imported
      .filter_by_year(2023)
      .where(needstype: 1)
      .where.not(uprn: nil)
      .where("uprn = propcode OR uprn = tenancycode or town_or_city = 'Bristol'")

      return if logs_with_missing_addresses.empty? && logs_with_missing_town_or_city.empty? && logs_with_wrong_uprn.empty?

      CSV.generate(headers: true) do |csv|
        csv << ["Issue type", "Lettings log ID", "Tenancy start date", "Tenant code", "Property code", "Log owner", "Owning organisation name", "Managing organisation name", "UPRN", "Address line 1", "Address line 2", "Town or City", "County", "Postcode", "Local authority"]

        logs_with_missing_addresses.each do |log|
          csv << ["Full address required",
                  log.id,
                  log.startdate&.to_date,
                  log.tenancycode,
                  log.propcode,
                  log.created_by&.email,
                  log.owning_organisation&.name,
                  log.managing_organisation&.name,
                  log.uprn,
                  log.address_line1,
                  log.address_line2,
                  log.town_or_city,
                  log.county,
                  log.postcode_full,
                  log.la]
        end

        logs_with_missing_town_or_city.each do |log|
          csv << ["Missing town or city",
                  log.id,
                  log.startdate&.to_date,
                  log.tenancycode,
                  log.propcode,
                  log.created_by&.email,
                  log.owning_organisation&.name,
                  log.managing_organisation&.name,
                  log.uprn,
                  log.address_line1,
                  log.address_line2,
                  log.town_or_city,
                  log.county,
                  log.postcode_full,
                  log.la]
        end

        logs_with_wrong_uprn.each do |log|
          csv << ["UPRN issues",
                  log.id,
                  log.startdate&.to_date,
                  log.tenancycode,
                  log.propcode,
                  log.created_by&.email,
                  log.owning_organisation&.name,
                  log.managing_organisation&.name,
                  log.uprn,
                  log.address_line1,
                  log.address_line2,
                  log.town_or_city,
                  log.county,
                  log.postcode_full,
                  log.la]
        end
      end
    end

    def create_missing_sales_addresses_csv
      logs_with_missing_addresses = @organisation.sales_logs
      .imported
      .filter_by_year(2023)
      .where(address_line1: nil, town_or_city: nil, uprn_known: [0, nil])
      .where.not(old_form_id: nil)

      logs_with_missing_town_or_city = @organisation.sales_logs
      .imported
      .filter_by_year(2023)
      .where(town_or_city: nil, uprn_known: [0, nil])
      .where.not(old_form_id: nil)
      .where.not(address_line1: nil)

      logs_with_wrong_uprn = @organisation.sales_logs
      .imported
      .filter_by_year(2023)
      .where.not(uprn: nil)
      .where("uprn = purchid or town_or_city = 'Bristol'")

      return if logs_with_missing_addresses.empty? && logs_with_missing_town_or_city.empty? && logs_with_wrong_uprn.empty?

      CSV.generate(headers: true) do |csv|
        csv << ["Issue type", "Sales log ID", "Sale completion date", "Purchaser code", "Log owner", "Owning organisation name", "UPRN", "Address line 1", "Address line 2", "Town or City", "County", "Postcode", "Local authority"]

        logs_with_missing_addresses.each do |log|
          csv << ["Full address required",
                  log.id,
                  log.saledate&.to_date,
                  log.purchid,
                  log.created_by&.email,
                  log.owning_organisation&.name,
                  log.uprn,
                  log.address_line1,
                  log.address_line2,
                  log.town_or_city,
                  log.county,
                  log.postcode_full,
                  log.la]
        end

        logs_with_missing_town_or_city.each do |log|
          csv << ["Missing town or city",
                  log.id,
                  log.saledate&.to_date,
                  log.purchid,
                  log.created_by&.email,
                  log.owning_organisation&.name,
                  log.uprn,
                  log.address_line1,
                  log.address_line2,
                  log.town_or_city,
                  log.county,
                  log.postcode_full,
                  log.la]
        end

        logs_with_wrong_uprn.each do |log|
          csv << ["UPRN issues",
                  log.id,
                  log.saledate&.to_date,
                  log.purchid,
                  log.created_by&.email,
                  log.owning_organisation&.name,
                  log.uprn,
                  log.address_line1,
                  log.address_line2,
                  log.town_or_city,
                  log.county,
                  log.postcode_full,
                  log.la]
        end
      end
    end
  end
end