Persist per-event Google calendar assignments

lib/data.dart

@@ -310,6 +310,7 @@ class GoogleCalendarConnection {
     required this.accountEmail,
     required this.enabledCalendarIds,
     this.calendarPersonIds = const {},
+    this.eventPersonIds = const {},
     required this.lastSync,
   });
 
@@ -317,12 +318,14 @@ class GoogleCalendarConnection {
   final String accountEmail;
   final List<String> enabledCalendarIds;
   final Map<String, String> calendarPersonIds;
+  final Map<String, String> eventPersonIds;
   final DateTime? lastSync;
 
   GoogleCalendarConnection copyWith({
     String? accountEmail,
     List<String>? enabledCalendarIds,
     Map<String, String>? calendarPersonIds,
+    Map<String, String>? eventPersonIds,
     DateTime? lastSync,
   }) {
     return GoogleCalendarConnection(
@@ -330,6 +333,7 @@ class GoogleCalendarConnection {
       accountEmail: accountEmail ?? this.accountEmail,
       enabledCalendarIds: enabledCalendarIds ?? this.enabledCalendarIds,
       calendarPersonIds: calendarPersonIds ?? this.calendarPersonIds,
+      eventPersonIds: eventPersonIds ?? this.eventPersonIds,
       lastSync: lastSync ?? this.lastSync,
     );
   }
@@ -337,6 +341,7 @@ class GoogleCalendarConnection {
   factory GoogleCalendarConnection.fromJson(Map<String, dynamic> json) {
     final rawCalendarIds = json['enabledCalendarIds'];
     final rawCalendarPersonIds = json['calendarPersonIds'];
+    final rawEventPersonIds = json['eventPersonIds'];
     return GoogleCalendarConnection(
       id: json['id'] as String? ?? uniqueId(),
       accountEmail: json['accountEmail'] as String? ?? '',
@@ -348,6 +353,11 @@ class GoogleCalendarConnection {
               (key, value) => MapEntry(key.toString(), value.toString()),
             )
           : const {},
+      eventPersonIds: rawEventPersonIds is Map
+          ? rawEventPersonIds.map(
+              (key, value) => MapEntry(key.toString(), value.toString()),
+            )
+          : const {},
       lastSync: DateTime.tryParse(json['lastSync'] as String? ?? ''),
     );
   }
@@ -357,6 +367,7 @@ class GoogleCalendarConnection {
     'accountEmail': accountEmail,
     'enabledCalendarIds': enabledCalendarIds,
     'calendarPersonIds': calendarPersonIds,
+    'eventPersonIds': eventPersonIds,
     'lastSync': lastSync?.toIso8601String(),
   };
 }
@@ -380,16 +391,15 @@ class GoogleCalendarInfo {
     final backgroundColor = json['backgroundColor'] as String?;
     return GoogleCalendarInfo(
       id: json['id'] as String? ?? 'primary',
-      name: json['summaryOverride'] as String? ??
+      name:
+          json['summaryOverride'] as String? ??
           json['summary'] as String? ??
           'N\u00e9vtelen Google napt\u00e1r',
-      description: [
-        json['description'] as String?,
-        json['accessRole'] as String?,
-      ]
-          .whereType<String>()
-          .where((part) => part.trim().isNotEmpty)
-          .join(' \u00b7 '),
+      description:
+          [json['description'] as String?, json['accessRole'] as String?]
+              .whereType<String>()
+              .where((part) => part.trim().isNotEmpty)
+              .join(' \u00b7 '),
       color: parseGoogleColor(backgroundColor),
       primary: json['primary'] == true,
     );