import { describe, expect, it } from 'vitest'
import { projectWarehouseArrival } from './warehouseArrival'

describe('shared warehouse arrival projection', () => {
  it.each([
    ['2026-10-21T15:49:00', '2026-10-23'],
    ['2026-10-30T23:30:00-07:00', '2026-11-01'],
    ['2026-12-31T23:30:00', '2027-01-02'],
    ['2026-03-07T23:30:00-08:00', '2026-03-09'],
  ])('displays the authoritative local date for %s without manufacturing a time', (arrivalAt, date) => {
    expect(projectWarehouseArrival({ plannedAt: null, version: 0, planCount: 0, plannedDate: date, isDefault: true })).toEqual({ date, time: '', isDefault: true })
  })
  it('keeps manually maintained and frozen dates instead of following port arrival', () => {
    for (const plan of [{ plannedAt: '2026-10-28T09:30:00', version: 1, planCount: 0 }, { plannedAt: '2026-10-28T09:30:00', version: 0, planCount: 1 }]) {
      expect(projectWarehouseArrival(plan)).toEqual({ date: '2026-10-28', time: '09:30', isDefault: false })
    }
  })
  it('does not replace inconsistent or frozen missing dates with defaults', () => {
    for (const plan of [{ plannedAt: null, version: -1, planCount: 0 }, { plannedAt: null, version: 0, planCount: 1 }, { plannedAt: null, version: 1, planCount: 0 }]) {
      expect(projectWarehouseArrival(plan).date).toBeNull()
    }
    expect(projectWarehouseArrival(undefined).date).toBeNull()
  })
  it('keeps the frozen server date without recalculating after a port date changes', () => {
    expect(projectWarehouseArrival({ plannedAt: null, version: 0, planCount: 1, plannedDate: '2026-11-02', isDefault: false }))
      .toEqual({ date: '2026-11-02', time: '', isDefault: false })
  })
})