// lib/models/report_transaction.dart

class ReportTransaction {
  final String id;
  DateTime date;
  String description;
  double amount;
  final String direction; // 'pemasukan' atau 'pengeluaran'
  final String counterpartyName; // Nama akun lawan atau keterangan
  List<String> tags;

  // Metadata Firefly III untuk keperluan sinkronisasi/edit
  String? transactionGroupId;
  String? transactionJournalId;

  // File attachments lokal untuk keperluan SPJ/Laporan
  String? fotoBarangPath;
  String? fotoBarangName;
  String? invoicePath;
  String? invoiceName;
  String? invoiceType; // 'pdf' atau 'image'
  String? invoiceSnapshotPath; // Path gambar PNG hasil render halaman PDF invoice

  ReportTransaction({
    required this.id,
    required this.date,
    required this.description,
    required this.amount,
    required this.direction,
    required this.counterpartyName,
    this.tags = const [],
    this.transactionGroupId,
    this.transactionJournalId,
    this.fotoBarangPath,
    this.fotoBarangName,
    this.invoicePath,
    this.invoiceName,
    this.invoiceType,
    this.invoiceSnapshotPath,
  });

  bool get isPengeluaran => direction == 'pengeluaran';
  bool get isPemasukan => direction == 'pemasukan';

  bool get hasFotoBarang => fotoBarangPath != null && fotoBarangPath!.isNotEmpty;
  bool get hasInvoice => invoicePath != null && invoicePath!.isNotEmpty;
  bool get hasInvoiceSnapshot =>
      invoiceSnapshotPath != null && invoiceSnapshotPath!.isNotEmpty;

  /// Pengeluaran wajib foto barang & invoice. Pemasukan selalu dianggap lengkap.
  bool get isComplete => !isPengeluaran || (hasFotoBarang && hasInvoice);

  /// Status badge attachment untuk pengeluaran: 'complete', 'partial', atau 'missing'
  String get attachmentStatus {
    if (!isPengeluaran) return 'not_required';
    if (hasFotoBarang && hasInvoice) return 'complete';
    if (hasFotoBarang || hasInvoice) return 'partial';
    return 'missing';
  }

  ReportTransaction copyWith({
    String? id,
    DateTime? date,
    String? description,
    double? amount,
    String? direction,
    String? counterpartyName,
    List<String>? tags,
    String? transactionGroupId,
    String? transactionJournalId,
    String? fotoBarangPath,
    String? fotoBarangName,
    String? invoicePath,
    String? invoiceName,
    String? invoiceType,
    String? invoiceSnapshotPath,
  }) {
    return ReportTransaction(
      id: id ?? this.id,
      date: date ?? this.date,
      description: description ?? this.description,
      amount: amount ?? this.amount,
      direction: direction ?? this.direction,
      counterpartyName: counterpartyName ?? this.counterpartyName,
      tags: tags ?? List<String>.from(this.tags),
      transactionGroupId: transactionGroupId ?? this.transactionGroupId,
      transactionJournalId: transactionJournalId ?? this.transactionJournalId,
      fotoBarangPath: fotoBarangPath ?? this.fotoBarangPath,
      fotoBarangName: fotoBarangName ?? this.fotoBarangName,
      invoicePath: invoicePath ?? this.invoicePath,
      invoiceName: invoiceName ?? this.invoiceName,
      invoiceType: invoiceType ?? this.invoiceType,
      invoiceSnapshotPath: invoiceSnapshotPath ?? this.invoiceSnapshotPath,
    );
  }

  factory ReportTransaction.fromJson(Map<String, dynamic> json) {
    List<String> parsedTags = [];
    if (json['tags'] is List) {
      parsedTags = (json['tags'] as List).map((e) => e.toString()).toList();
    }

    return ReportTransaction(
      id: json['id']?.toString() ?? '',
      date: DateTime.tryParse(json['date']?.toString() ?? '') ?? DateTime.now(),
      description: json['description']?.toString() ?? '-',
      amount: (json['amount'] is num)
          ? (json['amount'] as num).toDouble()
          : double.tryParse(json['amount']?.toString() ?? '0') ?? 0.0,
      direction: json['direction']?.toString() ?? 'pengeluaran',
      counterpartyName: json['counterpartyName']?.toString() ?? '-',
      tags: parsedTags,
      transactionGroupId: json['transactionGroupId']?.toString(),
      transactionJournalId: json['transactionJournalId']?.toString(),
      fotoBarangPath: json['fotoBarangPath']?.toString(),
      fotoBarangName: json['fotoBarangName']?.toString(),
      invoicePath: json['invoicePath']?.toString(),
      invoiceName: json['invoiceName']?.toString(),
      invoiceType: json['invoiceType']?.toString(),
      invoiceSnapshotPath: json['invoiceSnapshotPath']?.toString(),
    );
  }

  Map<String, dynamic> toJson() {
    return {
      'id': id,
      'date': date.toIso8601String(),
      'description': description,
      'amount': amount,
      'direction': direction,
      'counterpartyName': counterpartyName,
      'tags': tags,
      'transactionGroupId': transactionGroupId,
      'transactionJournalId': transactionJournalId,
      'fotoBarangPath': fotoBarangPath,
      'fotoBarangName': fotoBarangName,
      'invoicePath': invoicePath,
      'invoiceName': invoiceName,
      'invoiceType': invoiceType,
      'invoiceSnapshotPath': invoiceSnapshotPath,
    };
  }
}