import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
import moment from 'moment'
import { globalGetDate } from '../../../script/moment'

describe('globalGetDate', () => {
  beforeEach(() => {
    vi.useFakeTimers()
    vi.setSystemTime(new Date('2024-01-10T08:00:00.000Z'))
  })

  afterEach(() => {
    vi.useRealTimers()
  })
  it('dur 返回 moment.duration 实例并保留毫秒值', () => {
    const duration = globalGetDate.dur(3600 * 1000)

    expect(duration.asHours()).toBe(1)
    expect(duration.asMilliseconds()).toBe(3600 * 1000)
  })

  it('timeInterval 在 AddDayCount 为正数时返回从明天到目标日期的区间', () => {
    const [start, end] = globalGetDate.timeInterval(2)

    expect([start, end]).toEqual(['2024-01-11', '2024-01-12'])
  })

  it('timeInterval 在 AddDayCount=-1 时返回昨天到今天的有序区间', () => {
    const [start, end] = globalGetDate.timeInterval(-1)

    expect([start, end]).toEqual(['2024-01-09', '2024-01-10'])
  })

  it('addDay 支持基于字符串日期偏移并格式化输出', () => {
    expect(globalGetDate.addDay('2024-01-01', 2)).toBe('2024-01-03')
    expect(globalGetDate.addDay('2024-01-01', -1)).toBe('2023-12-31')
  })

  it('addDay 支持自定义 format 和 type', () => {
    expect(globalGetDate.addDay('2024-01-01 12:00:00', 1, 'YYYY-MM-DD HH:mm:ss', 'M')).toBe('2024-02-01 12:00:00')
  })

  it('getStartOf 返回指定时间粒度的开始时间', () => {
    expect(globalGetDate.getStartOf('2024-03-15 10:20:30' as any, 'day', 'YYYY-MM-DD HH:mm:ss')).toBe('2024-03-15 00:00:00')
    expect(globalGetDate.getStartOf('2024-03-15 10:20:30' as any, 'month', 'YYYY-MM-DD')).toBe('2024-03-01')
  })

  it('intervalAllDates 返回起止区间内的全部日期', () => {
    expect(globalGetDate.intervalAllDates('2024-01-01', '2024-01-03', 'YYYY-MM-DD')).toEqual([
      '2024-01-01',
      '2024-01-02',
      '2024-01-03'
    ])
  })

  it('intervalAllDates 在 start=end 时返回单元素数组', () => {
    expect(globalGetDate.intervalAllDates('2024-01-01', '2024-01-01', 'YYYY-MM-DD')).toEqual(['2024-01-01'])
  })

  it('format 对 null 返回空字符串，其他值正常格式化', () => {
    expect(globalGetDate.format(null as any)).toBe('')
    expect(globalGetDate.format('2024-01-01 03:04:05', 'YYYY-MM-DD')).toBe('2024-01-01')
  })

  it('valueOf 返回时间戳数值', () => {
    expect(globalGetDate.valueOf('2024-01-01 00:00:00')).toBe(moment('2024-01-01 00:00:00').valueOf())
  })
})