package creds

import (
	"encoding/json"
	"testing"
)

func TestHostCreds_ActiveAccountRoundTrip(t *testing.T) {
	src := HostCreds{
		Token:             "tok",
		ActiveAccountID:   "acct-uuid",
		ActiveAccountSlug: "acme",
	}
	b, err := json.Marshal(src)
	if err != nil {
		t.Fatalf("Marshal: %v", err)
	}
	var got HostCreds
	if err := json.Unmarshal(b, &got); err != nil {
		t.Fatalf("Unmarshal: %v", err)
	}
	if got.ActiveAccountID != "acct-uuid" {
		t.Errorf("ActiveAccountID = %q, want acct-uuid", got.ActiveAccountID)
	}
	if got.ActiveAccountSlug != "acme" {
		t.Errorf("ActiveAccountSlug = %q, want acme", got.ActiveAccountSlug)
	}
}

func TestHostCreds_LegacyFileLoadsWithoutAccount(t *testing.T) {
	// A creds.json from before the active-account fields existed must still
	// unmarshal cleanly; the new fields should be zero-valued.
	legacy := `{"token":"tok","user":"alice","default_scope":"@themes"}`
	var got HostCreds
	if err := json.Unmarshal([]byte(legacy), &got); err != nil {
		t.Fatalf("Unmarshal legacy: %v", err)
	}
	if got.Token != "tok" {
		t.Errorf("Token = %q", got.Token)
	}
	if got.ActiveAccountID != "" || got.ActiveAccountSlug != "" {
		t.Errorf("ActiveAccount* should be empty for legacy file, got id=%q slug=%q",
			got.ActiveAccountID, got.ActiveAccountSlug)
	}
}