feat: add availability screen individual components

packages/flutter_availability/lib/src/config/availability_translations.dart

@@ -18,6 +18,11 @@ class AvailabilityTranslations {
     required this.availabilityWithoutTemplateLabel,
     required this.overviewScreenTitle,
     required this.createTemplateButton,
+    required this.unavailableForDay,
+    required this.unavailableForMultipleDays,
+    required this.availabilityAddTemplateTitle,
+    required this.availabilityTimeTitle,
+    required this.availabilitiesTimeTitle,
     required this.templateScreenTitle,
     required this.dayTemplates,
     required this.weekTemplates,
@@ -41,6 +46,8 @@ class AvailabilityTranslations {
     required this.saveButton,
     required this.addButton,
     required this.timeFormatter,
+    required this.dayMonthFormatter,
+    required this.periodFormatter,
     required this.monthYearFormatter,
     required this.weekDayAbbreviatedFormatter,
   });
@@ -54,6 +61,11 @@ class AvailabilityTranslations {
     this.templateSelectionLabel = "Selected day(s)",
     this.availabilityWithoutTemplateLabel = "Availabilty without template",
     this.createTemplateButton = "Create a new template",
+    this.unavailableForDay = "I am not available this day",
+    this.unavailableForMultipleDays = "I am not available these days",
+    this.availabilityAddTemplateTitle = "Add template to availability",
+    this.availabilityTimeTitle = "Start and end time workday",
+    this.availabilitiesTimeTitle = "Start and end time workdays",
     this.overviewScreenTitle = "Availability",
     this.templateScreenTitle = "Templates",
     this.dayTemplates = "Day templates",
@@ -79,6 +91,8 @@ class AvailabilityTranslations {
         "Select between which times you want to take a break",
     this.saveButton = "Save",
     this.addButton = "Add",
+    this.dayMonthFormatter = _defaultDayMonthFormatter,
+    this.periodFormatter = _defaultPeriodFormatter,
     this.monthYearFormatter = _defaultMonthYearFormatter,
     this.weekDayAbbreviatedFormatter = _defaultWeekDayAbbreviatedFormatter,
     this.timeFormatter = _defaultTimeFormatter,
@@ -105,6 +119,21 @@ class AvailabilityTranslations {
   /// The label on the button to go to the template screen
   final String createTemplateButton;
 
+  /// The text shown to clear the availability for a day
+  final String unavailableForDay;
+
+  /// The text shown to clear the availability for multiple days
+  final String unavailableForMultipleDays;
+
+  /// The title on the template selection section for adding availabilities
+  final String availabilityAddTemplateTitle;
+
+  /// The title on the time selection section for adding a single availability
+  final String availabilityTimeTitle;
+
+  /// The title on the time selection section for adding multiple availabilities
+  final String availabilitiesTimeTitle;
+
   /// The title on the template screen
   final String templateScreenTitle;
 
@@ -172,6 +201,16 @@ class AvailabilityTranslations {
   /// The text on the add button
   final String addButton;
 
+  /// Gets the day and month formatted as a string
+  ///
+  /// The default implementation is `Dayname day monthname` in english
+  final String Function(BuildContext, DateTime) dayMonthFormatter;
+
+  /// Gets the period between two dates formatted as a string
+  ///
+  /// The default implementation is `day monthname to day monthname` in english
+  final String Function(BuildContext, DateTimeRange) periodFormatter;
+
   /// Gets the month and year formatted as a string
   ///
   /// The default implementation is `MonthName Year` in english
@@ -190,8 +229,15 @@ class AvailabilityTranslations {
 }
 
 String _defaultTimeFormatter(BuildContext context, DateTime date) =>
-    "${date.hour}:${date.minute}";
+    "${date.hour.toString().padLeft(2, '0')}:"
+    "${date.minute.toString().padLeft(2, '0')}";
 
+String _defaultDayMonthFormatter(BuildContext context, DateTime date) =>
+    "${_getDayName(date.weekday)} ${date.day} ${_getMonthName(date.month)}";
+
+String _defaultPeriodFormatter(BuildContext context, DateTimeRange range) =>
+    "${range.start.day} ${_getMonthName(range.start.month)} to "
+    "${range.end.day} ${_getMonthName(range.end.month)}";
 String _defaultWeekDayAbbreviatedFormatter(
   BuildContext context,
   DateTime date,
@@ -201,16 +247,8 @@ String _defaultWeekDayAbbreviatedFormatter(
 String _defaultMonthYearFormatter(BuildContext context, DateTime date) =>
     "${_getMonthName(date.month)} ${date.year}";
 
-String _getWeekDayAbbreviation(int weekday) => switch (weekday) {
-      1 => "Mo",
-      2 => "Tu",
-      3 => "We",
-      4 => "Th",
-      5 => "Fr",
-      6 => "Sa",
-      7 => "Su",
-      _ => "",
-    };
+String _getWeekDayAbbreviation(int weekday) =>
+    _getDayName(weekday).substring(0, 2);
 
 String _getMonthName(int month) => switch (month) {
       1 => "January",
@@ -227,3 +265,14 @@ String _getMonthName(int month) => switch (month) {
       12 => "December",
       _ => "",
     };
+
+String _getDayName(int day) => switch (day) {
+      1 => "Monday",
+      2 => "Tuesday",
+      3 => "Wednesday",
+      4 => "Thursday",
+      5 => "Friday",
+      6 => "Saturday",
+      7 => "Sunday",
+      _ => "",
+    };

packages/flutter_availability/lib/src/ui/widgets/availability_clear.dart

@@ -0,0 +1,68 @@
+import "package:flutter/material.dart";
+import "package:flutter_availability/src/util/scope.dart";
+
+///
+class AvailabilityClearSection extends StatelessWidget {
+  ///
+  const AvailabilityClearSection({
+    required this.range,
+    required this.clearAvailable,
+    required this.onChanged,
+    super.key,
+  });
+
+  /// The date range for which the availabilities can be cleared
+  /// If the range is a single day, the range will be formatted as a single day
+  /// If the range is multiple days, the range will be formatted as a period
+  final DateTimeRange range;
+
+  /// Whether the clear available checkbox should be checked
+  final bool clearAvailable;
+
+  /// Callback for when the clear available checkbox is toggled
+  // ignore: avoid_positional_boolean_parameters
+  final void Function(bool isChecked) onChanged;
+
+  @override
+  Widget build(BuildContext context) {
+    var theme = Theme.of(context);
+    var textTheme = theme.textTheme;
+    var availabilityScope = AvailabilityScope.of(context);
+    var options = availabilityScope.options;
+    var translations = options.translations;
+
+    var isSingleDay = range.start.isAtSameMomentAs(range.end);
+
+    var titleText = isSingleDay
+        ? translations.dayMonthFormatter(context, range.start)
+        : translations.periodFormatter(context, range);
+    var unavailableText = isSingleDay
+        ? translations.unavailableForDay
+        : translations.unavailableForMultipleDays;
+
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          titleText,
+          style: textTheme.titleMedium,
+        ),
+        Row(
+          children: [
+            Checkbox(
+              value: clearAvailable,
+              onChanged: (value) {
+                if (value == null) return;
+                onChanged(value);
+              },
+            ),
+            Text(
+              unavailableText,
+              style: textTheme.bodyMedium,
+            ),
+          ],
+        ),
+      ],
+    );
+  }
+}

packages/flutter_availability/lib/src/ui/widgets/availability_template_selection.dart

@@ -0,0 +1,16 @@
+import "package:flutter/material.dart";
+
+/// Selection of the template to use for the availability
+/// 
+/// This can show multiple templates when the user selects a date range.
+/// When updating the templates for a date range where there are multiple 
+/// different templates used, the user first needs to remove the existing 
+/// templates.
+class AvailabilityTemplateSelection extends StatelessWidget {
+  /// Constructor
+  const AvailabilityTemplateSelection({super.key});
+
+  @override
+  Widget build(BuildContext context) =>
+      const SizedBox(height: 50, child: Placeholder());
+}

packages/flutter_availability/lib/src/ui/widgets/availabillity_time_selection.dart

@@ -0,0 +1,52 @@
+import "package:flutter/material.dart";
+import "package:flutter_availability/src/ui/widgets/generic_time_selection.dart";
+import "package:flutter_availability/src/util/scope.dart";
+
+///
+class AvailabilityTimeSelection extends StatelessWidget {
+  ///
+  const AvailabilityTimeSelection({
+    required this.startTime,
+    required this.endTime,
+    required this.onStartChanged,
+    required this.onEndChanged,
+    required this.dateRange,
+    super.key,
+  });
+
+  ///
+  final DateTime? startTime;
+
+  ///
+  final DateTime? endTime;
+
+  ///
+  final void Function(DateTime) onStartChanged;
+
+  ///
+  final void Function(DateTime) onEndChanged;
+
+  /// The date range for which the availabilities are being managed
+  final DateTimeRange dateRange;
+
+  @override
+  Widget build(BuildContext context) {
+    var availabilityScope = AvailabilityScope.of(context);
+    var options = availabilityScope.options;
+    var translations = options.translations;
+
+    var isSingleDay = dateRange.start.isAtSameMomentAs(dateRange.end);
+    var titleText = isSingleDay
+        ? translations.availabilityTimeTitle
+        : translations.availabilitiesTimeTitle;
+
+    return TimeSelection(
+      title: titleText,
+      description: null,
+      startTime: startTime,
+      endTime: endTime,
+      onStartChanged: onStartChanged,
+      onEndChanged: onEndChanged,
+    );
+  }
+}

packages/flutter_availability/lib/src/ui/widgets/generic_time_selection.dart

@@ -20,7 +20,7 @@ class TimeSelection extends StatelessWidget {
   final String title;
 
   /// The description of the time selection
-  final String description;
+  final String? description;
 
   /// the axis aligment for the column
   final CrossAxisAlignment crossAxisAlignment;
@@ -49,8 +49,10 @@ class TimeSelection extends StatelessWidget {
       crossAxisAlignment: crossAxisAlignment,
       children: [
         Text(title, style: textTheme.titleMedium),
-        const SizedBox(height: 4),
-        Text(description, style: textTheme.bodyMedium),
+        if (description != null) ...[
+          const SizedBox(height: 4),
+          Text(description!, style: textTheme.bodyMedium),
+        ],
         const SizedBox(height: 8),
         Row(
           children: [