package config

import (
	"crypto/md5"
	"fmt"
	"testing"
)

func TestDeriveCookieNameMatchesFallbackPrestashopRule(t *testing.T) {
	cfg := Config{PrestaShopVersion: "1.7.3"}

	got := cfg.DeriveCookieName("localhost")
	sum := md5.Sum([]byte("1.7.3" + "ps-s1"))
	want := fmt.Sprintf("PrestaShop-%x", sum)

	if got != want {
		t.Fatalf("DeriveCookieName() = %q, want %q", got, want)
	}
}

func TestDeriveCookieNameUsesDomainCookieOverride(t *testing.T) {
	cfg := Config{
		PrestaShopVersion: "1.7.3",
		DomainCookie:      ".example.com",
	}

	got := cfg.DeriveCookieName("localhost")
	sum := md5.Sum([]byte("1.7.3" + "ps-s1" + "example.com"))
	want := fmt.Sprintf("PrestaShop-%x", sum)

	if got != want {
		t.Fatalf("DeriveCookieName() = %q, want %q", got, want)
	}
}

func TestDeriveCookieNamePrefersExplicitCookieName(t *testing.T) {
	cfg := Config{
		PrestaShopVersion:    "1.7.3",
		DomainCookie:         ".example.com",
		PrestaShopCookieName: "PrestaShop-fixed",
	}

	got := cfg.DeriveCookieName("localhost")
	if got != "PrestaShop-fixed" {
		t.Fatalf("DeriveCookieName() = %q, want %q", got, "PrestaShop-fixed")
	}
}