From d32ec679a811ed8ed59a288fb777e1167e2df267 Mon Sep 17 00:00:00 2001
From: Colin Maier - MBA <colin.maier@studium.uni-hamburg.de>
Date: Thu, 6 Jul 2023 09:40:34 +0200
Subject: [PATCH] Transform DateTimes in YustDatabaseServiceMocked

---
 .../yust_database_service_mocked.dart         | 43 +++++++++++++------
 1 file changed, 31 insertions(+), 12 deletions(-)

diff --git a/lib/src/services/yust_database_service_mocked.dart b/lib/src/services/yust_database_service_mocked.dart
index 653d4353..f86b302d 100644
--- a/lib/src/services/yust_database_service_mocked.dart
+++ b/lib/src/services/yust_database_service_mocked.dart
@@ -177,7 +177,8 @@ class YustDatabaseServiceMocked extends YustDatabaseService {
     await doc.onSave();
     final jsonDocs = _getJSONCollection(docSetup.collectionName);
     final index = jsonDocs.indexWhere((d) => d['id'] == doc.id);
-    final docJsonClone = jsonDecode(jsonEncode(doc.toJson()));
+    final docJsonClone =
+        jsonDecode(jsonEncode(doc.toJson()), reviver: _decodeDateTime);
     if (index == -1 && !doNotCreate) {
       jsonDocs.add(docJsonClone);
       await onChange?.call(
@@ -186,7 +187,8 @@ class YustDatabaseServiceMocked extends YustDatabaseService {
         docJsonClone,
       );
     } else {
-      final oldDoc = jsonDecode(jsonEncode(jsonDocs[index]));
+      final oldDoc =
+          jsonDecode(jsonEncode(jsonDocs[index]), reviver: _decodeDateTime);
       if (updateMask == null) {
         jsonDocs[index] = docJsonClone;
         await onChange?.call(
@@ -221,8 +223,10 @@ class YustDatabaseServiceMocked extends YustDatabaseService {
   }) async {
     final jsonDocs = _getJSONCollection(docSetup.collectionName);
     final index = jsonDocs.indexWhere((doc) => doc['id'] == id);
-    final jsonDocClone = jsonDecode(jsonEncode(jsonDocs[index]));
-    final oldDoc = jsonDecode(jsonEncode(jsonDocs[index]));
+    final jsonDocClone =
+        jsonDecode(jsonEncode(jsonDocs[index]), reviver: _decodeDateTime);
+    final oldDoc =
+        jsonDecode(jsonEncode(jsonDocs[index]), reviver: _decodeDateTime);
 
     for (final t in fieldTransforms) {
       final unescapedPath = t.fieldPath.replaceAll('`', '');
@@ -287,7 +291,8 @@ class YustDatabaseServiceMocked extends YustDatabaseService {
       List<Map<String, dynamic>> collection, YustDocSetup<T> docSetup) {
     return collection
         // We clone the maps here by using jsonDecode/jsonEncode
-        .map<T>((e) => docSetup.fromJson(jsonDecode(jsonEncode(e))))
+        .map<T>((e) => docSetup
+            .fromJson(jsonDecode(jsonEncode(e), reviver: _decodeDateTime)))
         .toList();
   }
 
@@ -305,13 +310,13 @@ class YustDatabaseServiceMocked extends YustDatabaseService {
 
   List<Map<String, dynamic>> _orderBy(
     List<Map<String, dynamic>> collection,
-    List<YustOrderBy>? orderBy,
+    List<YustOrderBy>? orderBys,
   ) {
-    for (final o in (orderBy ?? []).reversed) {
-      collection.sort((a, b) {
-        final compare = (_readValueInJsonDoc(a, o.field) as Comparable)
-            .compareTo(_readValueInJsonDoc(b, o.field) as Comparable);
-        final order = o.descending ? -1 : 1;
+    for (final orderBy in (orderBys ?? []).reversed) {
+      collection.sort((docA, docB) {
+        final compare = (_readValueInJsonDoc(docA, orderBy.field) as Comparable)
+            .compareTo(_readValueInJsonDoc(docB, orderBy.field) as Comparable);
+        final order = orderBy.descending ? -1 : 1;
         return order * compare;
       });
     }
@@ -337,7 +342,9 @@ class YustDatabaseServiceMocked extends YustDatabaseService {
     for (final segment in segments.sublist(0, segments.length - 1)) {
       subDoc = subDoc[segment];
     }
-    return subDoc[segments.last];
+    final value = subDoc[segments.last];
+    final decoded = jsonDecode(value, reviver: _decodeDateTime);
+    return decoded;
   }
 
   String _createDocumentId() {
@@ -352,4 +359,16 @@ class YustDatabaseServiceMocked extends YustDatabaseService {
 
     return '$parentPath/${docSetup.collectionName}/${doc?.id ?? id ?? ''}';
   }
+
+  dynamic _decodeDateTime(dynamic key, dynamic item) {
+    if (item is String) {
+      if (RegExp(r'^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}').hasMatch(item)) {
+        final dateTime = DateTime.tryParse(item);
+        if (dateTime != null) {
+          return dateTime;
+        }
+      }
+    }
+    return item;
+  }
 }