package notes

import (
	"context"
	"git.zb-server.de/Sebi/ssh-netbox-wrapper/internal/netbox"
	"os"
	"testing"
)

func TestLocalNotesPersistAndStayIsolated(t *testing.T) {
	ctx := context.Background()
	s := &Service{Dir: t.TempDir(), Namespace: "https://netbox.example"}
	host := netbox.HostEntry{Name: "web01", Kind: "device"}
	n := Note{Host: host, Text: "Maintenance\nReady 🔧"}
	if err := s.Write(ctx, n, false); err != nil {
		t.Fatal(err)
	}
	reloaded := &Service{Dir: s.Dir, Namespace: s.Namespace}
	got, err := reloaded.Read(ctx, host, false)
	if err != nil || got.Text != n.Text {
		t.Fatalf("round trip: %+v, %v", got, err)
	}
	info, err := os.Stat(s.path(host))
	if err != nil {
		t.Fatal(err)
	}
	if info.Mode().Perm() != 0o600 {
		t.Fatalf("permissions: %v", info.Mode())
	}
	host.Kind = "vm"
	got, err = s.Read(ctx, host, false)
	if err != nil || got.Text != "" {
		t.Fatalf("kind isolation: %+v, %v", got, err)
	}
	host.Kind = "device"
	reloaded.Namespace = "https://other.example"
	got, err = reloaded.Read(ctx, host, false)
	if err != nil || got.Text != "" {
		t.Fatalf("instance isolation: %+v, %v", got, err)
	}
}

func TestUnreadableNoteIsNotTreatedAsEmpty(t *testing.T) {
	s := &Service{Dir: t.TempDir()}
	host := netbox.HostEntry{Name: "web01", Kind: "vm"}
	if err := os.Mkdir(s.path(host), 0o700); err != nil {
		t.Fatal(err)
	}
	if _, err := s.Read(context.Background(), host, false); err == nil {
		t.Fatal("expected read error")
	}
}

func TestLocalNotesSeparateInstancesAndSurviveRename(t *testing.T) {
	ctx := context.Background()
	client := netbox.NewMultiClient([]netbox.Source{{Name: "office", URL: "https://office.example"}, {Name: "lab", URL: "https://lab.example"}})
	service := &Service{Dir: t.TempDir(), Client: client}
	for _, source := range []string{"office", "lab"} {
		note := Note{Host: netbox.HostEntry{Name: source + "/web", Kind: "device"}, Text: source + " private note"}
		if err := service.Write(ctx, note, false); err != nil {
			t.Fatal(err)
		}
	}
	for _, source := range []string{"office", "lab"} {
		note, err := service.Read(ctx, netbox.HostEntry{Name: source + "/web", Kind: "device"}, false)
		if err != nil || note.Text != source+" private note" {
			t.Fatalf("notes crossed instances: %+v, %v", note, err)
		}
	}
	service.Client = netbox.NewMultiClient([]netbox.Source{{Name: "renamed", URL: "https://office.example"}})
	note, err := service.Read(ctx, netbox.HostEntry{Name: "renamed/web", Kind: "device"}, false)
	if err != nil || note.Text != "office private note" {
		t.Fatalf("renaming source lost note: %+v, %v", note, err)
	}
	// This is also the namespace used before migrating a legacy single NetBox.
	legacy := &Service{Dir: service.Dir, Namespace: "https://office.example"}
	note, err = legacy.Read(ctx, netbox.HostEntry{Name: "web", Kind: "device"}, false)
	if err != nil || note.Text != "office private note" {
		t.Fatalf("legacy note namespace changed: %+v, %v", note, err)
	}
	if err := service.Write(ctx, Note{Host: netbox.HostEntry{Name: "web", Kind: "device"}}, false); err == nil {
		t.Fatal("unqualified notes accepted for multiple sources")
	}
}