perform_transaction.rb

# frozen_string_literal: true

module BankAccounts
  class PerformTransaction < ApplicationService
    BASE_FEE = 5
    HIGHER_FEE = 7
    ADIOTIONAL_FEE = 10
    BUSINESS_HOURS = 9..18

    def initialize(transaction_params)
      params = OpenStruct.new(transaction_params)
      @amount = params.amount.to_f
      @transaction_type = params.transaction_type
      @bank_account_id = params.bank_account_id
      @account_sender = BankAccount.find_by(account_number: params.account_sender)
      @receiver_account = BankAccount.find_by(id: @bank_account_id)
    end

    def call
      ActiveRecord::Base.transaction do
        Transaction.create!(
          bank_account: @receiver_account,
          amount: @amount,
          transaction_type: @transaction_type,
          account_sender: @account_sender.account_number,
					fee: get_fee
        )

        case @transaction_type
        when 'withdraw'
          @account_sender.update!(balance: @account_sender.balance.to_f - @amount)
        when 'deposit'
          @account_sender.update!(balance: @account_sender.balance.to_f + @amount)
        when 'transfer'
          @account_sender.update!(balance: (@account_sender.balance.to_f - (@amount + get_fee)))
          @receiver_account.update!(balance: @receiver_account.balance.to_f + @amount)
        end
      end

      @account_sender
    end

    private

    def get_fee
			if @transaction_type == 'transfer'
        return generate_fee + ADIOTIONAL_FEE if @amount >= 1000
			
			  generate_fee
      else
        0
      end
		end

    def generate_fee
      return BASE_FEE if working_hour?(Time.current)
    
      HIGHER_FEE
    end
    
    def working hour?(time)
      time.weekday? && time.hour.in? BUSINESS_HOURS
    end
  end
end