package order

import (
    "testing"
    "github.com/perfect-panel/server/internal/model/payment"
)

func TestCalculateFee_Percent(t *testing.T) {
    p := &payment.Payment{FeeMode: 1, FeePercent: 5}
    if calculateFee(1000, p) != 50 {
        t.Fatal("fee percent 5% of 1000 should be 50")
    }
}

func TestCalculateFee_PercentRounding(t *testing.T) {
    p := &payment.Payment{FeeMode: 1, FeePercent: 5}
    if calculateFee(999, p) != 50 { // 999*5% = 49.95 → round to 50
        t.Fatal("fee percent 5% of 999 should round to 50")
    }
}

func TestCalculateFee_Fixed(t *testing.T) {
    p := &payment.Payment{FeeMode: 2, FeeAmount: 300}
    if calculateFee(1000, p) != 300 {
        t.Fatal("fixed fee 300 should be 300")
    }
}

func TestCalculateFee_Mixed(t *testing.T) {
    p := &payment.Payment{FeeMode: 3, FeePercent: 10, FeeAmount: 100}
    if calculateFee(1000, p) != 200 {
        t.Fatal("mixed fee 10% + 100 of 1000 should be 200")
    }
}