const kairos = require('@oxog/kairos');

// Current date/time
const now = kairos();

// Parse dates
const date = kairos('2024-06-15');

// Format dates
console.log(date.format('MMMM D, YYYY')); // June 15, 2024

// Date arithmetic
const tomorrow = date.add(1, 'day');
const lastWeek = date.subtract(1, 'week');

// Comparisons
console.log(date.isBefore(tomorrow)); // true
console.log(date.isAfter(lastWeek)); // true

kairos()                           // Current date/time
kairos('2024-06-15')              // ISO string
kairos(1718460600000)             // Unix timestamp (ms)
kairos([2024, 5, 15])             // Array [year, month, day]
kairos({ year: 2024, month: 6 })  // Object

const date = kairos('2024-06-15');

date.add(1, 'day')        // Add time
date.subtract(2, 'hours') // Subtract time
date.startOf('month')     // Beginning of month
date.endOf('year')        // End of year
date.clone()              // Create copy

const date1 = kairos('2024-06-15');
const date2 = kairos('2024-06-20');

date1.isBefore(date2)              // true
date1.isAfter(date2)               // false
date1.isSame(date2, 'month')       // true
date1.isBetween(start, end)        // Check if between
date1.diff(date2, 'days')          // -5

const date = kairos('2024-06-15 14:30:00');

date.format('YYYY-MM-DD')          // 2024-06-15
date.format('MMM D, YYYY h:mm A')  // Jun 15, 2024 2:30 PM
date.toISOString()                  // 2024-06-15T14:30:00.000Z
date.valueOf()                      // Unix timestamp (ms)
date.toDate()                       // JavaScript Date object

const businessPlugin = require('@oxog/kairos/plugins/business/workday');
kairos.use(businessPlugin);

const date = kairos('2024-06-14');
date.isBusinessDay()               // true/false
date.nextBusinessDay()              // Next working day
date.addBusinessDays(5)             // Add 5 working days
date.businessDaysBetween(end)      // Count working days

const durationPlugin = require('@oxog/kairos/plugins/duration/duration');
kairos.use(durationPlugin);

const duration = kairos.duration({ hours: 2, minutes: 30 });
duration.asMinutes()                // 150
duration.humanize()                  // "3 hours"
duration.toISOString()               // "PT2H30M"

const rangePlugin = require('@oxog/kairos/plugins/range/range');
kairos.use(rangePlugin);

const range = kairos.range(start, end);
range.contains(date)                // Check if date in range
range.overlaps(otherRange)          // Check overlap
range.duration()                     // Get duration

const relativePlugin = require('@oxog/kairos/plugins/relative/relative');
kairos.use(relativePlugin);

const past = kairos().subtract(2, 'hours');
past.fromNow()                      // "2 hours ago"
past.from(reference)                // Relative to reference
past.calendar()                     // "Today at 2:30 PM"

const timezonePlugin = require('@oxog/kairos/plugins/timezone/timezone');
kairos.use(timezonePlugin);

const local = kairos();
const utc = local.utc();            // Convert to UTC
utc.local()                         // Back to local
local.utcOffset()                   // Offset in minutes

const enUS = require('@oxog/kairos/plugins/locale/en-US');
const deDE = require('@oxog/kairos/plugins/locale/de-DE');

kairos.locale('en-US', enUS);
kairos.locale('de-DE', deDE);

kairos.setLocale('de-DE');
const date = kairos('2024-06-15');
date.format('LLLL');                // Localized format