# frozen_string_literal: true

# This worker perform various requests to the Stripe API (payment service)
class StripeWorker
  include Sidekiq::Worker
  sidekiq_options queue: :stripe

  def perform(action, *params)
    send(action, *params)
  end

  def create_stripe_customer(user_id)
    user = User.find(user_id)
    customer = Stripe::Customer.create(
      {
        description: user.profile.full_name,
        email: user.email
      },
      { api_key: Setting.get('stripe_secret_key') }
    )
    user.update_columns(stp_customer_id: customer.id)
  end

  def create_stripe_coupon(coupon_id)
    coupon = Coupon.find(coupon_id)
    stp_coupon = {
      id: coupon.code,
      duration: coupon.validity_per_user
    }
    if coupon.type == 'percent_off'
      stp_coupon[:percent_off] = coupon.percent_off
    elsif coupon.type == 'amount_off'
      stp_coupon[:amount_off] = coupon.amount_off
      stp_coupon[:currency] = Setting.get('stripe_currency')
    end

    stp_coupon[:redeem_by] = coupon.valid_until.to_i unless coupon.valid_until.nil?
    stp_coupon[:max_redemptions] = coupon.max_usages unless coupon.max_usages.nil?

    Stripe::Coupon.create(stp_coupon, api_key: Setting.get('stripe_secret_key'))
  end

  def delete_stripe_coupon(coupon_code)
    cpn = Stripe::Coupon.retrieve(coupon_code, api_key: Setting.get('stripe_secret_key'))
    cpn.delete
  end

  def create_or_update_stp_product(class_name, id)
    object = class_name.constantize.find(id)
    if !object.stp_product_id.nil?
      Stripe::Product.update(
        object.stp_product_id,
        { name: object.name },
        { api_key: Setting.get('stripe_secret_key') }
      )
      p.product
    else
      product = Stripe::Product.create(
        {
          name: object.name,
          metadata: {
            id: object.id,
            type: class_name
          }
        }, { api_key: Setting.get('stripe_secret_key') }
      )
      object.update_attributes(stp_product_id: product.id)
    end
  end

  def create_stripe_subscription(payment_schedule_id, reservable_stp_id)
    payment_schedule = PaymentSchedule.find(payment_schedule_id)

    first_item = payment_schedule.ordered_items.first
    second_item = payment_schedule.ordered_items[1]

    items = []
    if first_item.amount != second_item.amount
      unless first_item.details['adjustment']&.zero?
        # adjustment: when dividing the price of the plan / months, sometimes it forces us to round the amount per month.
        # The difference is invoiced here
        p1 = Stripe::Price.create({
                                    unit_amount: first_item.details['adjustment'],
                                    currency: Setting.get('stripe_currency'),
                                    product: payment_schedule.scheduled.plan.stp_product_id,
                                    nickname: "Price adjustment for payment schedule #{payment_schedule_id}"
                                  }, { api_key: Setting.get('stripe_secret_key') })
        items.push(price: p1[:id])
      end
      unless first_item.details['other_items']&.zero?
        # when taking a subscription at the same time of a reservation (space, machine or training), the amount of the
        # reservation is invoiced here.
        p2 = Stripe::Price.create({
                                    unit_amount: first_item.details['other_items'],
                                    currency: Setting.get('stripe_currency'),
                                    product: reservable_stp_id,
                                    nickname: "Reservations for payment schedule #{payment_schedule_id}"
                                  }, { api_key: Setting.get('stripe_secret_key') })
        items.push(price: p2[:id])
      end
    end

    # subscription (recurring price)
    price = Stripe::Price.create({
                                   unit_amount: first_item.details['recurring'],
                                   currency: Setting.get('stripe_currency'),
                                   recurring: { interval: 'month', interval_count: 1 },
                                   product: payment_schedule.scheduled.plan.stp_product_id
                                 },
                                 { api_key: Setting.get('stripe_secret_key') })

    stp_subscription = Stripe::Subscription.create({
                                                     customer: payment_schedule.invoicing_profile.user.stp_customer_id,
                                                     cancel_at: payment_schedule.scheduled.expiration_date.to_i,
                                                     promotion_code: payment_schedule.coupon&.code,
                                                     add_invoice_items: items,
                                                     items: [
                                                       { price: price[:id] }
                                                     ]
                                                   }, { api_key: Setting.get('stripe_secret_key') })
    payment_schedule.update_attributes(stp_subscription_id: stp_subscription.id)
  end
end