package portal

import (
	"math"

	"github.com/perfect-panel/server/internal/model/coupon"
	"github.com/perfect-panel/server/internal/model/payment"
	"github.com/perfect-panel/server/internal/types"
)

func getDiscount(discounts []types.SubscribeDiscount, inputMonths int64) float64 {
	final := 1.0
	for _, d := range discounts {
		val := d.Discount
		if val > 1 && val <= 100 {
			val = val / 100.0
		}
		if val < 0 {
			val = 0
		}
		if inputMonths >= d.Quantity && val < final {
			final = val
		}
	}
	return final
}

func calculateCoupon(amount int64, couponInfo *coupon.Coupon) int64 {
	if couponInfo.Type == 1 {
		return int64(math.Round(float64(amount) * (float64(couponInfo.Discount) / float64(100))))
	} else {
		return min(couponInfo.Discount, amount)
	}
}

func calculateFee(amount int64, config *payment.Payment) int64 {
	var fee float64
	switch config.FeeMode {
	case 0:
		return 0
	case 1:
		fee = float64(amount) * (float64(config.FeePercent) / float64(100))
	case 2:
		if amount > 0 {
			fee = float64(config.FeeAmount)
		}
	case 3:
		fee = float64(amount)*(float64(config.FeePercent)/float64(100)) + float64(config.FeeAmount)
	}
	return int64(math.Round(fee))
}