class SalePayment < ApplicationRecord
  self.primary_key = "sale_payment_id"

  #primary key - need to be unique generated for multiple shops
  before_create :generate_custom_id

  belongs_to :sale

  attr_accessor :received_amount, :card_payment_reference, :voucher_no, :giftcard_no, :customer_id, :external_payment_status

  def process_payment(invoice, action_by, cash_amount,payment_method)

    self.sale = invoice
    self.received_amount = cash_amount
    amount_due = invoice.grand_total

    #get all payment for this invoices
    invoice.sale_payments.each do |payment|
      if (payment.payment_status == "paid" )
        amount_due = amount_due - payment.payment_amount
      end
    end

    if (amount_due > 0)
      payment_status = false
      #route to payment type
      case payment_method
        when "cash"
          payment_status = cash_payment
        when "creditnote"
          if !self.customer_id.nil?
            payment_status = creditnote_payment(self.customer_id)
          end
        when "visa"
           payment_status = external_terminal_card_payment(:visa)
        when "master"
           payment_status = external_terminal_card_payment(:master)
        when "jcb"
           payment_status = external_terminal_card_payment(:jcb)
        when "mpu"
           payment_status = external_terminal_card_payment(:mpu)
        when "unionpay"
           payment_status = external_terminal_card_payment(:unionpay)
        when "vochure"
           payment_status = vochure_payment
        when "giftcard"
           payment_status = giftcard_payment
        when "paypar"
          payment_status = paypar_payment
      else
         puts "it was something else"
      end

      #record an payment in sale-audit
      remark = "Payment #{payment_method}- for Invoice #{invoice.receipt_no} Due [#{amount_due}]| pay amount -> #{cash_amount} | Payment Status ->#{payment_status}"
      sale_audit = SaleAudit.record_payment(invoice.id, remark, action_by)

      return true, self.sale
    else
      #record an payment in sale-audit
      remark = "No outstanding Amount - Grand Total [#{invoice.grand_total}] | Due [#{amount_due}] | Paid [#{invoice.amount_received}]"
      sale_audit = SaleAudit.record_payment(invoice.id, remark,action_by)

      return false, "No outstanding Amount"
    end

  end

   def self.get_paypar_account(url,token,membership_id,campaign_type_id)
      response = HTTParty.get(url,
                :body => { app_token: token,membership_id:membership_id,campaign_type_id:campaign_type_id}.to_json,
                :headers => {
                          'Content-Type' => 'application/json',
                          'Accept' => 'application/json'
                }
          )
        return response;
      
  end

  def self.redeem(paypar_url,token,membership_id,received_amount,sale_id,campaign_type_id)
      membership_actions_data = MembershipAction.find_by_membership_type("redeem");
      if !membership_actions_data.nil?
        url = paypar_url.to_s + membership_actions_data.gateway_url.to_s
        campaign_type_id = 1
        response = HTTParty.post(url,
                :body => { generic_customer_id:membership_id,total_amount:received_amount,receipet_no:sale_id,campaign_type_id:campaign_type_id,account_no:""}.to_json,
                :headers => {
                          'Content-Type' => 'application/json',
                          'Accept' => 'application/json'
                }
          )
      else
        response =false;
      end
      
      return response;
      
  end

  private
  def cash_payment
    payment_status = false
    self.payment_method = "cash"
    self.payment_amount = self.received_amount
    self.outstanding_amount = self.sale.grand_total - self.received_amount
    self.payment_status = "paid"
    payment_method = self.save!

    sale_update_payment_status(self.received_amount)

    return payment_status
  end

  def creditnote_payment(customer_id)

    payment_status = false

    self.payment_method = "creditnote"
    self.payment_amount = self.received_amount
    self.customer_id  = self.customer_id
    self.outstanding_amount = 0 - self.received_amount
    self.payment_status = "outstanding"
    payment_method = self.save!

    sale_update_payment_status(self.received_amount)

    return payment_status
  end

  def external_terminal_card_payment(method)
    payment_status = false

    self.payment_method = method
    self.payment_amount = self.received_amount
    self.payment_reference  = self.card_payment_reference
    self.outstanding_amount = self.sale.grand_total- self.received_amount
    self.payment_status = "paid"
    payment_method = self.save!

    sale_update_payment_status(self.received_amount)

    return payment_status
  end

  def voucher_payment
    payment_status = false

    #Next time - validate if the vochure number is valid - within
    self.payment_method = "voucher"
    self.payment_amount = self.received_amount
    self.payment_reference  = self.voucher_no
    self.outstanding_amount = self.sale.grand_total- self.received_amount
    self.payment_status = "paid"
    payment_method = self.save!

    sale_update_payment_status(self.received_amount)

    return payment_status

  end

  def giftcard_payment
    payment_status = false

    #Next time - validate if the vochure number is valid - within
    self.payment_method = "giftcard"
    self.payment_amount = self.received_amount
    self.payment_reference  = self.giftcard_no
    self.outstanding_amount = self.sale.grand_total- self.received_amount
    self.payment_status = "paid"
    payment_method = self.save!

    sale_update_payment_status(self.received_amount)

    return payment_status

  end

  def paypar_payment
    payment_status = false

    #Next time - validate if the vochure number is valid - within
    self.payment_method = "paypar"
    self.payment_amount = self.received_amount
    self.payment_reference  = self.voucher_no
    self.outstanding_amount = self.sale.grand_total.to_f - self.received_amount.to_f
    self.payment_status = "pending"
    payment_method = self.save!

    campaign_type_id =1;
    customer_data = Customer.find_by_customer_id(self.sale.customer_id)
    membership_setting = MembershipSetting.find_by_membership_type("paypar_url")
    membership_data = SalePayment.redeem(membership_setting.gateway_url,membership_setting.auth_token,customer_data.membership_id,self.received_amount,self.sale.sale_id,campaign_type_id)
    if membership_data["status"]==true
      SalePayment.where(:sale_payment_id => self.sale_payment_id).update_all(:payment_status => 'paid')
      sale_update_payment_status(self.received_amount.to_f)
      
    else
      sale_update_payment_status(0)
    end
    

    return payment_status

  end

  def sale_update_payment_status(paid_amount)
    #update amount_outstanding
    self.sale.amount_received =   self.sale.amount_received + paid_amount
    self.sale.amount_changed = paid_amount - self.sale.amount_received
    if (self.sale.grand_total <=   self.sale.amount_received && self.sale.amount_changed > 0)
      self.sale.payment_status = "paid"
      self.sale.sale_status = "completed"
      self.sale.save!
    end

  end

  private
  def generate_custom_id
    self.sale_payment_id = SeedGenerator.generate_id(self.class.name, "SPI")
  end
end