package birdfmt

import (
	"path"
	"slices"
	"strings"
	"testing"
)

func TestBirdScenarioPaths_Table(t *testing.T) {
	paths, err := BirdScenarioPaths()
	if err != nil {
		t.Fatal(err)
	}
	// Expected scenario leaf names — extend when adding directories under testdata/scenarios.
	wantNames := []string{
		"bgp_dual_peer",
		"bgp_ipv4_peer",
		"bgp_ipv6_peer",
		"domains_resolved",
		"dynamic_discovery",
		"empty_static",
		"filter_export",
		"large_prefix_list",
		"minimal",
		"mixed_static_bgp",
		"standard_layout",
		"static_ipv4",
		"with_include",
	}
	var gotNames []string
	for _, p := range paths {
		gotNames = append(gotNames, path.Base(p))
	}
	slices.Sort(gotNames)
	if !slices.Equal(gotNames, wantNames) {
		t.Fatalf("scenario set drift: got %v want %v", gotNames, wantNames)
	}

	for _, p := range paths {
		t.Run(path.Base(p), func(t *testing.T) {
			b, err := ReadScenarioBirdConf(p)
			if err != nil {
				t.Fatal(err)
			}
			if len(b) == 0 {
				t.Fatal("empty bird.conf")
			}
			if !strings.Contains(string(b), "router id") {
				t.Fatal("expected router id in scenario")
			}
		})
	}
}

func TestRepoRelativeBirdConf_Table(t *testing.T) {
	paths, err := BirdScenarioPaths()
	if err != nil {
		t.Fatal(err)
	}
	for _, p := range paths {
		rel := RepoRelativeBirdConf(p)
		if !strings.HasPrefix(rel, "internal/birdfmt/") {
			t.Fatalf("%s: bad prefix %q", p, rel)
		}
		if !strings.HasSuffix(rel, "/bird.conf") {
			t.Fatalf("%s: expected .../bird.conf, got %q", p, rel)
		}
	}
}