let AI comment everything because well... yeah...

lib/screens/sharedWidgets/datum.dart

@@ -1,8 +1,21 @@
+// * Shared widget for date selection across the application
+// * Features:
+// * - Date picker dialog interface
+// * - Formatted date display
+// * - Customizable button label
+// * - Date range validation
+// * - Callback for date changes
+
 import 'package:flutter/material.dart';
 
+/// Widget for managing date selection
+/// Provides a button to open date picker and displays selected date
 class Datum extends StatefulWidget {
+  /// Initial date value
   final DateTime? initDatum;
+  /// Callback function when date changes
   final Function(DateTime) onDateChanged;
+  /// Label for the date picker button
   final String name;
 
   const Datum(
@@ -12,7 +25,9 @@ class Datum extends StatefulWidget {
   State<Datum> createState() => _DatumState();
 }
 
+/// State class for the date selection widget
 class _DatumState extends State<Datum> {
+  /// Currently selected date
   DateTime? datum;
 
   @override
@@ -26,6 +41,7 @@ class _DatumState extends State<Datum> {
     return Row(
       children: [
         Row(children: [
+          // Date picker button
           SizedBox(
             width: 140,
             child: ElevatedButton(
@@ -40,6 +56,7 @@ class _DatumState extends State<Datum> {
           const SizedBox(
             width: 10,
           ),
+          // Formatted date display
           Text(
             '${datum?.day}. ${datum?.month}. ${datum?.year}',
           ),
@@ -48,6 +65,8 @@ class _DatumState extends State<Datum> {
     );
   }
 
+  /// Shows date picker dialog and returns selected date
+  /// @return Future<DateTime?> Selected date or null if cancelled
   Future<DateTime?> pickDate() async {
     final date = await showDatePicker(
         context: context,

lib/screens/sharedWidgets/var_text_field.dart

@@ -1,15 +1,32 @@
+// * Shared widget for text input fields with database integration
+// * Features:
+// * - Customizable text input field
+// * - Database value suggestions
+// * - Required field validation
+// * - Default value support
+// * - Visual feedback for validation state
+// * - Dropdown for previous entries
+
 import 'package:fforte/enums/databases.dart';
 import 'package:fforte/methods/excursion_db_helper.dart';
 import 'package:fforte/methods/place_db_helper.dart';
 import 'package:flutter/material.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
+/// Widget for managing text input with database integration
+/// Provides suggestions from previous entries and validation
 class VarTextField extends StatefulWidget {
+  /// Controller for the text input
   final TextEditingController textController;
+  /// Localized label/hint text
   final String localization;
+  /// Database type (place or excursion)
   final DatabasesEnum dbDesignation;
+  /// Database field name
   final String dbName;
+  /// Default value key for preferences
   final String? defaultValue;
+  /// Whether the field is required
   final bool required;
 
   const VarTextField({
@@ -26,24 +43,31 @@ class VarTextField extends StatefulWidget {
   State<VarTextField> createState() => _VarTextFieldState();
 }
 
+/// State class for the variable text field widget
 class _VarTextFieldState extends State<VarTextField> {
+  /// List of previous values from database
   List<String> dbVar = [];
 
   @override
   void initState() {
     super.initState();
 
+    // Load default value if field is empty
     if (widget.textController.text == "" && widget.defaultValue != null) {
       _loadPref();
     }
 
+    // Load previous values from database
     _loadData().then((e) => dbVar = e);
   }
 
+  /// Load previous values from the appropriate database
+  /// @return Future<List<String>> List of previous values
   Future<List<String>> _loadData() async {
     List<Map<String, dynamic>> entries = [];
     List<Map<String, dynamic>> templatesEntries = [];
 
+    // Get entries from appropriate database
     if (widget.dbDesignation == DatabasesEnum.place) {
       entries = await PlaceDBHelper().getAllMainEntries();
       templatesEntries = await PlaceDBHelper().getAllTemplates();
@@ -54,6 +78,7 @@ class _VarTextFieldState extends State<VarTextField> {
 
     List<String> erg = [];
 
+    // Extract values for this field from entries
     for (var element in entries) {
       for (var key in element.keys) {
         if (key == widget.dbName && element[key].toString() != "") {
@@ -62,6 +87,7 @@ class _VarTextFieldState extends State<VarTextField> {
       }
     }
 
+    // Extract values from templates
     for (var element in templatesEntries) {
       for (var key in element.keys) {
         if (key == widget.dbName && element[key].toString() != "") {
@@ -73,6 +99,7 @@ class _VarTextFieldState extends State<VarTextField> {
     return erg;
   }
 
+  /// Load default value from preferences
   void _loadPref() {
     Future.delayed(Duration.zero, () async {
       SharedPreferences prefs = await SharedPreferences.getInstance();
@@ -87,6 +114,7 @@ class _VarTextFieldState extends State<VarTextField> {
   Widget build(BuildContext context) {
     return Row(
       children: [
+        // Text input field
         Expanded(
           flex: 5,
           child: TextField(
@@ -100,6 +128,7 @@ class _VarTextFieldState extends State<VarTextField> {
             },
             decoration: InputDecoration(
               hintText: widget.localization,
+              // Border color based on required status and value
               enabledBorder:
                   widget.required
                       ? (widget.textController.text.isEmpty
@@ -128,6 +157,7 @@ class _VarTextFieldState extends State<VarTextField> {
           ),
         ),
         const Expanded(child: SizedBox(width: 15)),
+        // Dropdown for previous values
         Expanded(
           flex: 1,
           child: Align(