country_holiday 0.0.2

country_holiday: ^0.0.2 copied to clipboard

example/example.dart

import 'dart:io';
import 'package:country_holiday/country_holiday.dart';
import 'package:dotenv/dotenv.dart';

/// Example demonstrating the Country Holiday library usage.
///
/// SETUP:
/// 1. Copy .env.example to .env
/// 2. Add your Google Calendar API key to .env
/// 3. Run: dart run example/example.dart
void main() async {
  // Load environment variables
  final env = DotEnv()..load();

  // Get API key from environment
  final apiKey = env['GOOGLE_CALENDAR_API_KEY'];

  if (apiKey == null || apiKey.isEmpty || apiKey == 'your_api_key_here') {
    print('❌ Error: Google Calendar API key not configured!');
    print('');
    print('Please follow these steps:');
    print('1. Copy .env.example to .env');
    print('2. Get your API key from: https://console.cloud.google.com/');
    print('3. Add your API key to the .env file');
    print('4. Run this example again');
    exit(1);
  }

  final countryHolidays = CountryHolidays(apiKey: apiKey);

  print('=== Country Holiday Library - Global Coverage Demo ===\n');

  // Example 1: Get all available countries
  print('1. Available Countries:');
  final countries = await countryHolidays.getAllCountries();
  print('   Total countries: ${countries.length}');
  print('   First 10 countries:');
  for (var country in countries.take(10)) {
    print('   - ${country.code}: ${country.name}');
  }
  print('   ... and ${countries.length - 10} more\n');

  // Example 2: Test multiple countries from different regions
  print('2. Testing Holiday Retrieval Across Regions:\n');

  final testCountries = {
    'Americas': ['US', 'AR', 'BR', 'MX'],
    'Europe': ['ES', 'DE', 'FR', 'GB'],
    'Asia': ['JP', 'CN', 'IN', 'SG'],
    'Middle East': ['SA', 'AE', 'IL'],
    'Africa': ['ZA', 'EG', 'KE'],
    'Oceania': ['AU', 'NZ'],
  };

  for (var region in testCountries.entries) {
    print('   ${region.key}:');
    for (var countryCode in region.value) {
      try {
        final holidays = await countryHolidays.getHolidaysByCountry(
          countryCode,
        );
        print('   ✅ $countryCode: ${holidays.length} holidays found');
      } catch (e) {
        print('   ❌ $countryCode: Error - $e');
      }
    }
    print('');
  }

  // Example 3: Get detailed holidays for specific countries
  print('3. Detailed Holiday Information:\n');

  print('   United States Holidays:');
  final usHolidays = await countryHolidays.getHolidaysByCountry('US');
  for (var holiday in usHolidays.take(5)) {
    print('   - ${holiday.date.month}/${holiday.date.day}: ${holiday.name}');
  }
  print('   ... and ${usHolidays.length - 5} more\n');

  // Example 4: Check if a specific date is a holiday
  print('4. Checking Specific Dates:\n');

  final testDates = {
    'US': DateTime(2025, 7, 4), // Independence Day
    'AR': DateTime(2025, 7, 9), // Independence Day
    'BR': DateTime(2025, 9, 7), // Independence Day
    'MX': DateTime(2025, 9, 16), // Independence Day
  };

  for (var entry in testDates.entries) {
    final isHoliday = await countryHolidays.isHoliday(entry.key, entry.value);
    final date = '${entry.value.month}/${entry.value.day}/${entry.value.year}';
    print(
      '   ${entry.key} - $date: ${isHoliday ? "✅ Holiday" : "❌ Not a holiday"}',
    );
  }
  print('');

  // Example 5: Get holidays on a specific date across countries
  print('5. Christmas Across Different Countries:\n');
  final christmas = DateTime(2025, 12, 25);

  for (var countryCode in ['US', 'AR', 'BR', 'ES', 'JP']) {
    final holidays = await countryHolidays.getHolidaysByDate(
      countryCode,
      christmas,
    );
    if (holidays.isNotEmpty) {
      print('   $countryCode: ${holidays.first.name}');
    } else {
      print('   $countryCode: No holiday on this date');
    }
  }

  print('\n=== Demo Complete ===');
  print('Total countries available: ${countries.length}');
  print('API: Google Calendar API v3');
}