module V1::Admin
  class CustomersController < ApplicationController
    include Rails::Pagination
    def index
      customers = if check_params
        current_user.customers.order("id ASC")
      else
        filtered_customers
      end
      customers = search_for_customers(customers) if params[:search_value].present?

      paginate json: customers, per_page: 25
        end

        private

    def search_for_customers(customers)
      if is_number?(ConvertFullWidth.call(params[:search_value]))
        customers.joins(:orders).joins(:customer_subscriptions).where('customer_subscriptions.id = :query or customers.shopify_customer_id = :query or orders.shopify_order_id = :query or orders.id = :query', query: "#{ConvertFullWidth.call(params[:search_value]).to_i}").group('customers.id')
      else
        customers.joins(:customer_subscriptions).joins(:orders).where("lower(customer_subscriptions.checkout_data -> 'shipping_address' ->> 'last_name') LIKE :query or lower(customer_subscriptions.checkout_data -> 'shipping_address' ->> 'first_name') LIKE :query or lower(customer_subscriptions.checkout_data ->> 'email') LIKE :query", query: "%#{params[:search_value].downcase}%").group('customers.id')
      end
    end

    def filtered_customers
      keys = params[:key].split('_')
      value = params[:value].split('_')
      keys.each_with_index do |key, index|
        if key == "paymentStatusFilter"
          if value[index] == 'Failed'
            Customer.failed_subscriptions_customers
          elsif value[index] == 'Active'
            Customer.active_subscriptions_customers
          end
        elsif key == 'orderCountFilter'
          Customer.customers_with_max_orders
        end
      end
    end

    def is_number? (string)
      true if Float(string) rescue false
    end

    def check_params
      params[:key].blank? && params[:value].blank?
    end
    end
end