package identity

import (
	"os"
	"path/filepath"
	"testing"
)

func TestOpenMissingFileEmpty(t *testing.T) {
	r, err := Open(filepath.Join(t.TempDir(), "nope.json"))
	if err != nil {
		t.Fatal(err)
	}
	if len(r.AgentIDs()) != 0 {
		t.Errorf("expected empty registry")
	}
}

func TestSetSaveReload(t *testing.T) {
	path := filepath.Join(t.TempDir(), "id.json")
	r, _ := Open(path)
	r.Set("alice", &Entry{FabricAPIKey: "fak_alice", FabricEmail: "a@x", Enabled: true})
	r.Set("bob", &Entry{FabricAPIKey: "fak_bob", Enabled: false})
	if err := r.Save(); err != nil {
		t.Fatal(err)
	}

	r2, err := Open(path)
	if err != nil {
		t.Fatal(err)
	}
	a := r2.Lookup("alice")
	if a == nil || a.FabricAPIKey != "fak_alice" || !a.Enabled {
		t.Errorf("alice = %+v", a)
	}
	b := r2.Lookup("bob")
	if b == nil || b.Enabled {
		t.Errorf("bob = %+v", b)
	}

	st, err := os.Stat(path)
	if err != nil {
		t.Fatal(err)
	}
	if st.Mode().Perm() != 0o600 {
		t.Errorf("perms = %o, want 0600", st.Mode().Perm())
	}
}

func TestEnabledEntriesFiltersDisabled(t *testing.T) {
	path := filepath.Join(t.TempDir(), "id.json")
	r, _ := Open(path)
	r.Set("a", &Entry{FabricAPIKey: "x", Enabled: true})
	r.Set("b", &Entry{FabricAPIKey: "y", Enabled: false})
	r.Set("c", &Entry{FabricAPIKey: "z", Enabled: true})
	out := r.EnabledEntries()
	if len(out) != 2 || out["a"] == nil || out["c"] == nil {
		t.Errorf("EnabledEntries = %+v", out)
	}
	if out["b"] != nil {
		t.Errorf("disabled should be filtered")
	}
}

func TestDelete(t *testing.T) {
	r, _ := Open(filepath.Join(t.TempDir(), "id.json"))
	r.Set("a", &Entry{FabricAPIKey: "x", Enabled: true})
	if !r.Delete("a") {
		t.Errorf("delete present should return true")
	}
	if r.Delete("a") {
		t.Errorf("delete missing should return false")
	}
}

func TestAgentIDsSorted(t *testing.T) {
	r, _ := Open(filepath.Join(t.TempDir(), "id.json"))
	for _, k := range []string{"z", "a", "m"} {
		r.Set(k, &Entry{FabricAPIKey: "x", Enabled: true})
	}
	ids := r.AgentIDs()
	want := []string{"a", "m", "z"}
	for i := range want {
		if ids[i] != want[i] {
			t.Errorf("ids[%d] = %q, want %q", i, ids[i], want[i])
		}
	}
}