Holiday calendar

Example/HorizonCalendarExample/HorizonCalendarExample/Demo View Controllers/HolidayCalendarViewController.swift

@@ -0,0 +1,128 @@
+// Created by Bryan Keller on 8/23/22.
+// Copyright © 2022 Airbnb Inc. All rights reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import HorizonCalendar
+import UIKit
+
+final class HolidayCalendarViewController: BaseDemoViewController {
+
+    // MARK: Lifecycle
+
+    required init(monthsLayout: MonthsLayout) {
+        super.init(monthsLayout: monthsLayout)
+        selectedDate = calendar.date(from: DateComponents(year: 2020, month: 01, day: 19))!
+    }
+
+    required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    // MARK: Internal
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        title = "Holiday Calendar"
+
+        calendarView.daySelectionHandler = { [weak self] day in
+            guard let self = self else { return }
+
+            self.selectedDate = self.calendar.date(from: day.components)
+            self.calendarView.setContent(self.makeContent())
+        }
+    }
+
+    override func makeContent() -> CalendarViewContent {
+        let startDate = calendar.date(from: DateComponents(year: 2023, month: 01, day: 01))!
+        let endDate = calendar.date(from: DateComponents(year: 2023, month: 12, day: 31))!
+
+        let holidays = loadHolidays()
+
+        return CalendarViewContent(
+            calendar: calendar,
+            visibleDateRange: startDate...endDate,
+            monthsLayout: monthsLayout)
+            .interMonthSpacing(24)
+            .verticalDayMargin(8)
+            .horizontalDayMargin(8)
+            .dayItemProvider { [calendar] day in
+                let date = calendar.date(from: day.components)
+                var invariantViewProperties = DayView.InvariantViewProperties.baseInteractive
+
+                if let holidayName = holidays[date ?? Date()] {
+                    invariantViewProperties.backgroundShapeDrawingConfig.borderColor = .red
+                    invariantViewProperties.backgroundShapeDrawingConfig.fillColor = .red.withAlphaComponent(0.15)
+
+                    return DayView.calendarItemModel(
+                        invariantViewProperties: invariantViewProperties,
+                        content: .init(
+                            dayText: "\(day.day)\n\(holidayName)",
+                            accessibilityLabel: date.map { DateFormatter.localizedString(from: $0, dateStyle: .medium, timeStyle: .none) },
+                            accessibilityHint: nil))
+                } else {
+                    return DayView.calendarItemModel(
+                        invariantViewProperties: invariantViewProperties,
+                        content: .init(
+                            dayText: "\(day.day)",
+                            accessibilityLabel: date.map { DateFormatter.localizedString(from: $0, dateStyle: .medium, timeStyle: .none) },
+                            accessibilityHint: nil))
+                }
+            }
+    }
+
+    // MARK: Private
+
+    private var selectedDate: Date?
+
+    private func loadHolidays() -> [Date: String] {
+        // Example static holidays; replace with your data source logic
+        var holidays: [Date: String] = [:]
+        let formatter = DateFormatter()
+        formatter.dateFormat = "yyyy/MM/dd"
+        // Common International Holidays
+            holidays[formatter.date(from: "2023/01/01")!] = "New Year's Day"
+            holidays[formatter.date(from: "2023/02/14")!] = "Valentine's Day"
+            holidays[formatter.date(from: "2023/03/17")!] = "St. Patrick's Day"
+            holidays[formatter.date(from: "2023/04/01")!] = "April Fool's Day"
+            holidays[formatter.date(from: "2023/10/31")!] = "Halloween"
+            holidays[formatter.date(from: "2023/12/25")!] = "Christmas Day"
+            holidays[formatter.date(from: "2023/12/31")!] = "New Year's Eve"
+
+            // USA Specific Holidays
+            holidays[formatter.date(from: "2023/07/04")!] = "Independence Day"
+            holidays[formatter.date(from: "2023/11/24")!] = "Thanksgiving Day"
+
+            // Other Significant Dates
+            holidays[formatter.date(from: "2023/05/05")!] = "Cinco de Mayo"
+            holidays[formatter.date(from: "2023/07/14")!] = "Bastille Day"
+            holidays[formatter.date(from: "2023/10/03")!] = "German Unity Day"
+
+            // Religious Holidays
+            holidays[formatter.date(from: "2023/04/09")!] = "Easter Sunday"
+            holidays[formatter.date(from: "2023/12/12")!] = "Hanukkah Starts"   
+            holidays[formatter.date(from: "2023/07/28")!] = "Eid al-Adha"
+            holidays[formatter.date(from: "2023/11/12")!] = "Diwali"
+
+            // Additional Holidays
+            holidays[formatter.date(from: "2023/03/08")!] = "International Women's Day"
+            holidays[formatter.date(from: "2023/05/01")!] = "International Workers' Day"
+            holidays[formatter.date(from: "2023/06/19")!] = "Juneteenth"
+            holidays[formatter.date(from: "2023/08/09")!] = "International Day of the World's Indigenous Peoples"
+            holidays[formatter.date(from: "2023/09/21")!] = "International Day of Peace"
+            holidays[formatter.date(from: "2023/11/20")!] = "Universal Children's Day"
+        return holidays
+    }
+
+}

Example/HorizonCalendarExample/HorizonCalendarExample/DemoPickerViewController.swift

@@ -68,6 +68,7 @@ final class DemoPickerViewController: UIViewController {
       ("Month Grid Background", MonthBackgroundDemoViewController.self),
       ("SwiftUI Day and Month View", SwiftUIItemModelsDemoViewController.self),
       ("SwiftUI Screen", SwiftUIScreenDemoViewController.self),
+      ("Holidays", HolidayCalendarViewController.self),
     ]
 
   private let horizontalDemoDestinations: [(name: String, destinationType: DemoViewController.Type)] =
@@ -80,6 +81,7 @@ final class DemoPickerViewController: UIViewController {
       ("Month Grid Background", MonthBackgroundDemoViewController.self),
       ("SwiftUI Day and Month View", SwiftUIItemModelsDemoViewController.self),
       ("SwiftUI Screen", SwiftUIScreenDemoViewController.self),
+      ("Holidays", HolidayCalendarViewController.self),
     ]
 
   private lazy var tableView: UITableView = {