part of '../wallet.dart';

/// Voucher di katalog yang bisa ditukar dengan EnakPoint sekarang (§9.1).
@freezed
abstract class Voucher with _$Voucher {
  const Voucher._();

  const factory Voucher({
    required String id,
    required String name,
    String? description,
    String? imageUrl,
    required VoucherType type,

    /// Nilai voucher dalam rupiah.
    required int faceValue,

    /// EnakPoint yang dipotong saat ditukar.
    required int pointCost,

    /// Batas tukar per customer; `null` berarti tanpa batas.
    int? maxPerCustomer,
    DateTime? validUntil,

    /// Sisa stok; `null` berarti stok tidak dihitung.
    int? available,
  }) = _Voucher;

  bool get isOutOfStock => available != null && available! <= 0;
}

/// Voucher hasil tukar milik customer (§9.3).
@freezed
abstract class VoucherRedemption with _$VoucherRedemption {
  const factory VoucherRedemption({
    required String id,
    required String voucherId,
    required String voucherName,
    String? voucherImageUrl,
    required VoucherType voucherType,
    required VoucherRedemptionStatus status,
    required int faceValue,
    required int pointCost,

    /// `null` bila voucher tidak memakai kode; customer menunjukkan layar
    /// voucher ke kasir.
    String? code,
    DateTime? codeExpiresAt,
    DateTime? completedAt,
    DateTime? createdAt,
  }) = _VoucherRedemption;
}

@freezed
abstract class VoucherRedemptionPage with _$VoucherRedemptionPage {
  const factory VoucherRedemptionPage({
    required List<VoucherRedemption> items,
    required int page,
    required int totalPages,
  }) = _VoucherRedemptionPage;
}

@freezed
abstract class VoucherRedeemResult with _$VoucherRedeemResult {
  const factory VoucherRedeemResult({
    required VoucherRedemption redemption,

    /// Saldo EnakPoint setelah ditukar.
    required int pointBalance,
    required bool replayed,
  }) = _VoucherRedeemResult;
}