feat: Refactor code structure and optimize performance across multiple modules

mobile-apps/staff-app/lib/features/earning/data/models/earning_model.dart

@@ -0,0 +1,67 @@
+class EarningModel {
+  EarningModel({
+    required this.id,
+    required this.rate,
+    required this.businessName,
+    required this.businessAvatar,
+    required this.businessSkill,
+    required this.workHours,
+    required this.amount,
+    required this.status,
+    required this.paidAt,
+    required this.clockInAt,
+    required this.clockOutAt,
+    this.breakIn,
+    this.breakOut,
+    required this.eventName,
+    required this.eventDate,
+  });
+
+  factory EarningModel.fromJson(Map<String, dynamic> json) {
+    final assignment = json['assignment'] as Map<String, dynamic>;
+    final positionData = assignment['position'] as Map<String, dynamic>;
+    final eventData = positionData['shift']['event'] as Map<String, dynamic>;
+    final businessData = eventData['business'] as Map<String, dynamic>;
+
+    return EarningModel(
+      id: json['id'] as String? ?? '',
+      rate: (json['rate'] as num? ?? 0).toDouble(),
+      businessName: businessData['name'] as String? ?? '',
+      businessAvatar: businessData['avatar'] as String? ?? '',
+      businessSkill:
+          positionData['business_skill']['skill']['name'] as String? ?? '',
+      workHours: (json['work_hours'] as num? ?? 0).toDouble(),
+      amount: (json['amount'] as num? ?? 0).toDouble(),
+      status: json['status'] as String? ?? 'failed',
+      paidAt: DateTime.tryParse(
+        json['paid_at'] as String? ?? '',
+      ),
+      clockInAt: DateTime.parse(
+        assignment['clock_in'] ?? assignment['start_at'] as String,
+      ),
+      clockOutAt: DateTime.parse(
+        assignment['clock_out'] ?? assignment['end_at'] as String,
+      ),
+      breakIn: DateTime.tryParse(assignment['break_in'] ?? ''),
+      breakOut: DateTime.tryParse(assignment['break_out'] ?? ''),
+      eventName: eventData['name'] as String? ?? '',
+      eventDate: DateTime.parse(eventData['date'] as String? ?? ''),
+    );
+  }
+
+  final String id;
+  final double rate;
+  final String businessName;
+  final String businessAvatar;
+  final String businessSkill;
+  final double workHours;
+  final double amount;
+  final String status;
+  final DateTime? paidAt;
+  final DateTime clockInAt;
+  final DateTime clockOutAt;
+  final DateTime? breakIn;
+  final DateTime? breakOut;
+  final String eventName;
+  final DateTime eventDate;
+}

mobile-apps/staff-app/lib/features/earning/data/models/earnings_summary_model.dart

@@ -0,0 +1,70 @@
+class EarningsSummaryModel {
+  EarningsSummaryModel({
+    required this.totalEarningsByWeek,
+    required this.totalEarningsByMonth,
+    required this.totalWorkedHoursByWeek,
+    required this.totalWorkedHoursByMonth,
+    required this.payoutByWeek,
+    required this.payoutByMonth,
+    required this.startDatePeriod,
+    required this.endDatePeriod,
+    required this.maxEarningInPeriod,
+    required this.minEarningInPeriod,
+  });
+
+  //TODO: Additional fields that are used in the Earnings History screen are for now returning default values.
+  factory EarningsSummaryModel.fromJson(Map<String, dynamic> json) {
+    final time = DateTime.now();
+    return EarningsSummaryModel(
+      totalEarningsByWeek: (json['weekly_earnings'] as num?)?.toDouble() ?? 0,
+      totalEarningsByMonth: (json['monthly_earnings'] as num?)?.toDouble() ?? 0,
+      totalWorkedHoursByWeek: (json['weekly_hours'] as num?)?.toDouble() ?? 0,
+      totalWorkedHoursByMonth: (json['monthly_hours'] as num?)?.toDouble() ?? 0,
+      payoutByWeek: 0,
+      payoutByMonth: 0,
+      startDatePeriod: DateTime(time.year, time.month),
+      endDatePeriod: DateTime(time.year, time.month, 28),
+      maxEarningInPeriod: 0,
+      minEarningInPeriod: 0,
+    );
+  }
+
+  final double totalEarningsByWeek;
+  final double totalEarningsByMonth;
+  final double totalWorkedHoursByWeek;
+  final double totalWorkedHoursByMonth;
+  final double payoutByWeek;
+  final double payoutByMonth;
+  final DateTime? startDatePeriod;
+  final DateTime? endDatePeriod;
+  final int maxEarningInPeriod;
+  final int minEarningInPeriod;
+
+  EarningsSummaryModel copyWith({
+    double? totalEarningsByWeek,
+    double? totalEarningsByMonth,
+    double? totalWorkedHoursByWeek,
+    double? totalWorkedHoursByMonth,
+    double? payoutByWeek,
+    double? payoutByMonth,
+    DateTime? startDatePeriod,
+    DateTime? endDatePeriod,
+    int? maxEarningInPeriod,
+    int? minEarningInPeriod,
+  }) {
+    return EarningsSummaryModel(
+      totalEarningsByWeek: totalEarningsByWeek ?? this.totalEarningsByWeek,
+      totalEarningsByMonth: totalEarningsByMonth ?? this.totalEarningsByMonth,
+      totalWorkedHoursByWeek:
+          totalWorkedHoursByWeek ?? this.totalWorkedHoursByWeek,
+      totalWorkedHoursByMonth:
+          totalWorkedHoursByMonth ?? this.totalWorkedHoursByMonth,
+      payoutByWeek: payoutByWeek ?? this.payoutByWeek,
+      payoutByMonth: payoutByMonth ?? this.payoutByMonth,
+      startDatePeriod: startDatePeriod,
+      endDatePeriod: endDatePeriod,
+      maxEarningInPeriod: maxEarningInPeriod ?? this.maxEarningInPeriod,
+      minEarningInPeriod: minEarningInPeriod ?? this.minEarningInPeriod,
+    );
+  }
+}