feat: Integrate ErrorService for improved error handling and add imageUrl field to Trip model

lib/models/trip.dart

@@ -2,49 +2,51 @@ import 'dart:convert';
 import 'package:cloud_firestore/cloud_firestore.dart';
 
 /// Model representing a travel trip in the application.
-/// 
+///
 /// This class encapsulates all trip-related information including dates,
 /// location, participants, and budget details. It provides serialization
 /// methods for Firebase operations and supports trip lifecycle management.
 class Trip {
   /// Unique identifier for the trip (usually Firestore document ID).
   final String? id;
-  
+
   /// Title or name of the trip.
   final String title;
-  
+
   /// Detailed description of the trip.
   final String description;
-  
+
   /// Trip destination or location.
   final String location;
-  
+
   /// Trip start date and time.
   final DateTime startDate;
-  
+
   /// Trip end date and time.
   final DateTime endDate;
-  
+
   /// Optional budget for the trip in the local currency.
   final double? budget;
-  
+
   /// List of participant user IDs.
   final List<String> participants;
-  
+
   /// User ID of the trip creator.
   final String createdBy;
-  
+
   /// Timestamp when the trip was created.
   final DateTime createdAt;
-  
+
   /// Timestamp when the trip was last updated.
   final DateTime updatedAt;
-  
+
   /// Current status of the trip (e.g., 'draft', 'active', 'completed').
   final String status;
 
+  final String? imageUrl;
+
   /// Creates a new [Trip] instance.
-  /// 
+  ///
   /// Most fields are required except [id] and [budget].
   /// [status] defaults to 'draft' for new trips.
   Trip({
@@ -60,32 +62,33 @@ class Trip {
     required this.createdAt,
     required this.updatedAt,
     this.status = 'draft',
+    this.imageUrl,
   });
 
   // NOUVELLE MÉTHODE HELPER pour convertir n'importe quel format de date
   static DateTime _parseDateTime(dynamic value) {
     if (value == null) return DateTime.now();
-    
+
     // Si c'est déjà un Timestamp Firebase
     if (value is Timestamp) {
       return value.toDate();
     }
-    
+
     // Si c'est un int (millisecondes depuis epoch)
     if (value is int) {
       return DateTime.fromMillisecondsSinceEpoch(value);
     }
-    
+
     // Si c'est un String (ISO 8601)
     if (value is String) {
       return DateTime.parse(value);
     }
-    
+
     // Si c'est déjà un DateTime
     if (value is DateTime) {
       return value;
     }
-    
+
     // Par défaut
     return DateTime.now();
   }
@@ -106,6 +109,7 @@ class Trip {
         createdAt: _parseDateTime(map['createdAt']),
         updatedAt: _parseDateTime(map['updatedAt']),
         status: map['status'] as String? ?? 'draft',
+        imageUrl: map['imageUrl'] as String?,
       );
     } catch (e) {
       rethrow;
@@ -126,6 +130,7 @@ class Trip {
       'createdAt': Timestamp.fromDate(createdAt),
       'updatedAt': Timestamp.fromDate(updatedAt),
       'status': status,
+      'imageUrl': imageUrl,
     };
   }
 
@@ -148,6 +153,7 @@ class Trip {
     DateTime? createdAt,
     DateTime? updatedAt,
     String? status,
+    String? imageUrl,
   }) {
     return Trip(
       id: id ?? this.id,
@@ -162,6 +168,7 @@ class Trip {
       createdAt: createdAt ?? this.createdAt,
       updatedAt: updatedAt ?? this.updatedAt,
       status: status ?? this.status,
+      imageUrl: imageUrl ?? this.imageUrl,
     );
   }
 
@@ -236,4 +243,4 @@ class Trip {
 
   @override
   int get hashCode => id.hashCode;
-}
+}