import { describe, it, expect } from 'vitest'
import { decodeMeal } from '@/domain/decoders'

describe('mealMapper', () => {
  it('maps individual meal date fields to Date instances', () => {
    const input = {
      id: 1,
      suggestedDate: '2025-01-01T00:00:00Z',
      purchaseDate: '2025-01-02T00:00:00Z',
      consumedDate: '2025-01-03T00:00:00Z',
    }
  const result = decodeMeal({ ...input })
    expect(result.suggestedDate).toBeInstanceOf(Date)
    expect(result.purchaseDate).toBeInstanceOf(Date)
    expect(result.consumedDate).toBeInstanceOf(Date)
  })

  it('maps lists of meals', () => {
    const input = [
      { id: 1, suggestedDate: '2025-01-01T00:00:00Z' },
      { id: 2, suggestedDate: '2025-01-02T00:00:00Z' },
    ]
  const result = input.map((m) => decodeMeal(m)).filter((m) => m)
    expect(result).toHaveLength(2)
    expect(result[0].suggestedDate).toBeInstanceOf(Date)
  })
})