package birdfmt

import (
	_ "embed"
	"net/netip"
	"strings"
	"testing"
)

//go:embed testdata/golden/static_ipv4_small.golden
var goldenStaticIPv4Small string

func TestRenderStaticIPv4Protocol_Golden(t *testing.T) {
	p1 := netip.MustParsePrefix("203.0.113.0/24")
	p2 := netip.MustParsePrefix("198.51.100.0/24")
	// duplicate to assert dedup
	got := RenderStaticIPv4Protocol("evobgp_test", []netip.Prefix{p1, p2, p1})

	want := strings.TrimSuffix(goldenStaticIPv4Small, "\n")
	got = strings.TrimSuffix(got, "\n")
	if got != want {
		t.Fatalf("golden mismatch\n--- got ---\n%s\n--- want ---\n%s", got, want)
	}
}

func TestRenderStaticIPv4Protocol_Empty(t *testing.T) {
	got := RenderStaticIPv4Protocol("evobgp_empty", nil)
	if !strings.Contains(got, "protocol static evobgp_empty") {
		t.Fatal(got)
	}
	if !strings.Contains(got, "ipv4") {
		t.Fatal(got)
	}
}

func TestRenderStaticIPv6Protocol_Dedup(t *testing.T) {
	p := netip.MustParsePrefix("2001:db8::/32")
	got := RenderStaticIPv6Protocol("evobgp_v6", []netip.Prefix{p, p})
	if !strings.Contains(got, "2001:db8::/32") {
		t.Fatal(got)
	}
	if !strings.Contains(got, "ipv6") {
		t.Fatal(got)
	}
}