Attendance validation involving Location Detection + Facial Recoginition with Liveness Detection

lib/models/attendance_log.dart

@@ -11,6 +11,9 @@ class AttendanceLog {
     this.checkOutAt,
     this.checkOutLat,
     this.checkOutLng,
+    this.justification,
+    this.verificationStatus = 'pending',
+    this.verificationPhotoUrl,
   });
 
   final String id;
@@ -22,8 +25,14 @@ class AttendanceLog {
   final DateTime? checkOutAt;
   final double? checkOutLat;
   final double? checkOutLng;
+  final String? justification;
+  final String verificationStatus; // pending, verified, unverified, skipped
+  final String? verificationPhotoUrl;
 
   bool get isCheckedOut => checkOutAt != null;
+  bool get isVerified => verificationStatus == 'verified';
+  bool get isUnverified =>
+      verificationStatus == 'unverified' || verificationStatus == 'skipped';
 
   factory AttendanceLog.fromMap(Map<String, dynamic> map) {
     return AttendanceLog(
@@ -38,6 +47,9 @@ class AttendanceLog {
           : AppTime.parse(map['check_out_at'] as String),
       checkOutLat: (map['check_out_lat'] as num?)?.toDouble(),
       checkOutLng: (map['check_out_lng'] as num?)?.toDouble(),
+      justification: map['justification'] as String?,
+      verificationStatus: map['verification_status'] as String? ?? 'pending',
+      verificationPhotoUrl: map['verification_photo_url'] as String?,
     );
   }
 }

lib/models/leave_of_absence.dart

@@ -0,0 +1,54 @@
+import '../utils/app_time.dart';
+
+class LeaveOfAbsence {
+  LeaveOfAbsence({
+    required this.id,
+    required this.userId,
+    required this.leaveType,
+    required this.justification,
+    required this.startTime,
+    required this.endTime,
+    required this.status,
+    required this.filedBy,
+    required this.createdAt,
+  });
+
+  final String id;
+  final String userId;
+  final String leaveType;
+  final String justification;
+  final DateTime startTime;
+  final DateTime endTime;
+  final String status;
+  final String filedBy;
+  final DateTime createdAt;
+
+  factory LeaveOfAbsence.fromMap(Map<String, dynamic> map) {
+    return LeaveOfAbsence(
+      id: map['id'] as String,
+      userId: map['user_id'] as String,
+      leaveType: map['leave_type'] as String,
+      justification: map['justification'] as String,
+      startTime: AppTime.parse(map['start_time'] as String),
+      endTime: AppTime.parse(map['end_time'] as String),
+      status: map['status'] as String? ?? 'pending',
+      filedBy: map['filed_by'] as String,
+      createdAt: AppTime.parse(map['created_at'] as String),
+    );
+  }
+
+  String get leaveTypeLabel {
+    switch (leaveType) {
+      case 'emergency_leave':
+        return 'Emergency Leave';
+      case 'parental_leave':
+        return 'Parental Leave';
+      case 'sick_leave':
+        return 'Sick Leave';
+      case 'vacation_leave':
+        return 'Vacation Leave';
+      default:
+        return leaveType;
+    }
+  }
+}

lib/models/profile.dart

@@ -5,6 +5,9 @@ class Profile {
     required this.fullName,
     this.religion = 'catholic',
     this.allowTracking = false,
+    this.avatarUrl,
+    this.facePhotoUrl,
+    this.faceEnrolledAt,
   });
 
   final String id;
@@ -12,6 +15,11 @@ class Profile {
   final String fullName;
   final String religion;
   final bool allowTracking;
+  final String? avatarUrl;
+  final String? facePhotoUrl;
+  final DateTime? faceEnrolledAt;
+
+  bool get hasFaceEnrolled => facePhotoUrl != null && faceEnrolledAt != null;
 
   factory Profile.fromMap(Map<String, dynamic> map) {
     return Profile(
@@ -20,6 +28,11 @@ class Profile {
       fullName: map['full_name'] as String? ?? '',
       religion: map['religion'] as String? ?? 'catholic',
       allowTracking: map['allow_tracking'] as bool? ?? false,
+      avatarUrl: map['avatar_url'] as String?,
+      facePhotoUrl: map['face_photo_url'] as String?,
+      faceEnrolledAt: map['face_enrolled_at'] == null
+          ? null
+          : DateTime.tryParse(map['face_enrolled_at'] as String),
     );
   }
 }

lib/models/verification_session.dart

@@ -0,0 +1,54 @@
+import '../utils/app_time.dart';
+
+/// A cross-device face verification session.
+///
+/// Created on web when no camera is detected. The web client generates a QR
+/// code containing the session ID. The mobile client scans the QR, performs
+/// liveness detection, uploads the photo, and marks the session completed.
+class VerificationSession {
+  VerificationSession({
+    required this.id,
+    required this.userId,
+    required this.type,
+    this.contextId,
+    this.status = 'pending',
+    this.imageUrl,
+    required this.createdAt,
+    required this.expiresAt,
+  });
+
+  final String id;
+  final String userId;
+  final String type; // 'enrollment' or 'verification'
+  final String? contextId; // e.g. attendance_log_id
+  final String status; // 'pending', 'completed', 'expired'
+  final String? imageUrl;
+  final DateTime createdAt;
+  final DateTime expiresAt;
+
+  bool get isPending => status == 'pending';
+  bool get isCompleted => status == 'completed';
+  bool get isExpired =>
+      status == 'expired' || DateTime.now().toUtc().isAfter(expiresAt);
+
+  factory VerificationSession.fromMap(Map<String, dynamic> map) {
+    return VerificationSession(
+      id: map['id'] as String,
+      userId: map['user_id'] as String,
+      type: map['type'] as String,
+      contextId: map['context_id'] as String?,
+      status: (map['status'] as String?) ?? 'pending',
+      imageUrl: map['image_url'] as String?,
+      createdAt: AppTime.parse(map['created_at'] as String),
+      expiresAt: AppTime.parse(map['expires_at'] as String),
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'user_id': userId,
+      'type': type,
+      if (contextId != null) 'context_id': contextId,
+    };
+  }
+}