# frozen_string_literal: true

require 'open_food_network/permissions'

module Api
  module V1
    class CustomersController < Api::V1::BaseController
      skip_authorization_check only: :index

      before_action :set_customer, only: [:show, :update, :destroy]
      before_action :authorize_action, only: [:show, :update, :destroy]

      def index
        @pagy, customers = pagy(search_customers, pagy_options)

        render json: Api::V1::CustomerSerializer.new(customers, pagination_options)
      end

      def show
        render json: Api::V1::CustomerSerializer.new(@customer)
      end

      def create
        authorize! :update, Enterprise.find(customer_params[:enterprise_id])
        @customer = Customer.new(customer_params)

        if @customer.save
          render json: Api::V1::CustomerSerializer.new(@customer), status: :created
        else
          invalid_resource! @customer
        end
      end

      def update
        if @customer.update(customer_params)
          render json: Api::V1::CustomerSerializer.new(@customer)
        else
          invalid_resource! @customer
        end
      end

      def destroy
        if @customer.destroy
          render json: Api::V1::CustomerSerializer.new(@customer)
        else
          invalid_resource! @customer
        end
      end

      private

      def set_customer
        @customer = Customer.find(params[:id])
      end

      def authorize_action
        authorize! action_name.to_sym, @customer
      end

      def search_customers
        customers = visible_customers
        customers = customers.where(enterprise_id: params[:enterprise_id]) if params[:enterprise_id]
        customers.ransack(params[:q]).result
      end

      def visible_customers
        current_api_user.customers.or(
          Customer.where(enterprise_id: editable_enterprises)
        )
      end

      def customer_params
        params.require(:customer).permit(:email, :enterprise_id)
      end

      def editable_enterprises
        OpenFoodNetwork::Permissions.new(current_api_user).editable_enterprises.select(:id)
      end
    end
  end
end