import 'package:get/get.dart';
import 'package:miler/data/miler_api.dart';

/// The rider's reward-points balance.
///
/// ── Two things this used to do and no longer does ──
///
/// It called a second, legacy backend (the retired `.../
/// getuserbonussummary`) when the new-API flag was off, and it filled an empty
/// balance with seeded demo points in debug builds. Both are gone: there is one
/// backend now, and a points balance is a number about somebody's pay — the
/// only honest answer to "the server said zero" is zero.
///
/// ── Why the number is expected to be zero ──
///
/// `bonuspoints` is not written by anything server-side yet. `total_bonus` on
/// the earnings response is therefore always 0, and that is the backend's
/// answer rather than a bug here. See [MilerApi.missingFromBackend].
class RewardsController extends GetxController {
  final RxInt totalPoints = 0.obs;
  final RxBool isLoading = true.obs;
  final RxString error = ''.obs;

  Future<void> fetchBonusSummary(int userId) async {
    isLoading.value = true;
    error.value = '';
    try {
      // No dedicated bonus-summary endpoint exists; the figure rides on
      // earnings.
      final res = await MilerApi.earnings(period: 'monthly');
      if (res.ok) {
        totalPoints.value = int.tryParse('${res.map['total_bonus'] ?? 0}') ?? 0;
      } else {
        error.value = res.message.isEmpty
            ? "Couldn't load your points"
            : res.message;
      }
    } catch (e) {
      error.value = "Couldn't load your points";
    } finally {
      isLoading.value = false;
    }
  }
}