class TaskModel {
  final String assignmentDate;
  final String id;
  final WorkItem? workItem;
  final String workItemId;
  final int plannedTask;
  final int completedTask;
  final AssignedBy assignedBy;
  final List<TeamMember> teamMembers;
  final List<Comment> comments;

  int get plannedWork => workItem?.plannedWork ?? 0;
  int get completedWork => workItem?.completedWork ?? 0;

  TaskModel({
    required this.assignmentDate,
    required this.id,
    required this.workItem,
    required this.workItemId,
    required this.plannedTask,
    required this.completedTask,
    required this.assignedBy,
    required this.teamMembers,
    required this.comments,
  });

  factory TaskModel.fromJson(Map<String, dynamic> json) {
    final workItemJson = json['workItem'];
    final workItem =
        workItemJson != null ? WorkItem.fromJson(workItemJson) : null;

    return TaskModel(
      assignmentDate: json['assignmentDate'],
      id: json['id'] ?? '',
      workItemId: json['workItemId'],
      workItem: workItem,
      plannedTask: json['plannedTask'],
      completedTask: json['completedTask'],
      assignedBy: AssignedBy.fromJson(json['assignedBy']),
      teamMembers: (json['teamMembers'] as List)
          .map((e) => TeamMember.fromJson(e))
          .toList(),
      comments:
          (json['comments'] as List).map((e) => Comment.fromJson(e)).toList(),
    );
  }
}

class WorkItem {
  final ActivityMaster? activityMaster;
  final WorkArea? workArea;
  final int? plannedWork;
  final int? completedWork;

  WorkItem({
    this.activityMaster,
    this.workArea,
    this.plannedWork,
    this.completedWork,
  });

  factory WorkItem.fromJson(Map<String, dynamic> json) {
    return WorkItem(
      activityMaster: json['activityMaster'] != null
          ? ActivityMaster.fromJson(json['activityMaster'])
          : null,
      workArea:
          json['workArea'] != null ? WorkArea.fromJson(json['workArea']) : null,
      plannedWork: json['plannedWork'],
      completedWork: json['completedWork'],
    );
  }
}

class ActivityMaster {
  final String activityName;

  ActivityMaster({required this.activityName});

  factory ActivityMaster.fromJson(Map<String, dynamic> json) {
    return ActivityMaster(activityName: json['activityName']);
  }
}

class WorkArea {
  final String areaName;
  final Floor? floor;

  WorkArea({required this.areaName, this.floor});

  factory WorkArea.fromJson(Map<String, dynamic> json) {
    return WorkArea(
      areaName: json['areaName'],
      floor: json['floor'] != null ? Floor.fromJson(json['floor']) : null,
    );
  }
}

class Floor {
  final String floorName;
  final Building? building;

  Floor({required this.floorName, this.building});

  factory Floor.fromJson(Map<String, dynamic> json) {
    return Floor(
      floorName: json['floorName'],
      building:
          json['building'] != null ? Building.fromJson(json['building']) : null,
    );
  }
}

class Building {
  final String name;

  Building({required this.name});

  factory Building.fromJson(Map<String, dynamic> json) {
    return Building(name: json['name']);
  }
}

class AssignedBy {
  final String firstName;
  final String? lastName;

  AssignedBy({required this.firstName, this.lastName});

  factory AssignedBy.fromJson(Map<String, dynamic> json) {
    return AssignedBy(
      firstName: json['firstName'],
      lastName: json['lastName'],
    );
  }
}

class TeamMember {
  final String firstName;
  final String? lastName;

  TeamMember({required this.firstName, this.lastName});

  factory TeamMember.fromJson(Map<String, dynamic> json) {
    return TeamMember(
      firstName: json['firstName'],
      lastName: json['lastName'],
    );
  }
}

class Comment {
  final String comment;
  final TeamMember commentedBy;
  final String timestamp;

  Comment({
    required this.comment,
    required this.commentedBy,
    required this.timestamp,
  });

  factory Comment.fromJson(Map<String, dynamic> json) {
    return Comment(
      comment: json['comment'],
      commentedBy: TeamMember.fromJson(json['employee']),
      timestamp: json['commentDate'],
    );
  }
}