import { parseSeedsText } from '@/utils/indicatorSeeds'

describe('parseSeedsText', () => {
  test('empty/null/undefined → []', () => {
    expect(parseSeedsText('')).toEqual([])
    expect(parseSeedsText(null)).toEqual([])
    expect(parseSeedsText(undefined)).toEqual([])
  })

  test('JSON array with definitionId', () => {
    const input = '[{"rawName":"乳酸菌","definitionId":3},{"rawName":"双歧杆菌"}]'
    const res = parseSeedsText(input)
    expect(res).toHaveLength(2)
    expect(res[0]).toEqual({ rawName: '乳酸菌', definitionId: 3 })
    expect(res[1]).toEqual({ rawName: '双歧杆菌', definitionId: null })
  })

  test('CSV two columns', () => {
    const input = '乳酸菌,3\n双歧杆菌\n'
    const res = parseSeedsText(input)
    expect(res).toHaveLength(2)
    expect(res[0]).toEqual({ rawName: '乳酸菌', definitionId: 3 })
    expect(res[1]).toEqual({ rawName: '双歧杆菌', definitionId: null })
  })

  test('skip empty rawName', () => {
    const input = '乳酸菌,3\n ,\n双歧杆菌'
    const res = parseSeedsText(input)
    expect(res).toHaveLength(2)
    expect(res[0].rawName).toBe('乳酸菌')
    expect(res[1].rawName).toBe('双歧杆菌')
  })

  test('skip blank lines', () => {
    const input = '乳酸菌,3\n\n\n双歧杆菌\n'
    const res = parseSeedsText(input)
    expect(res).toHaveLength(2)
  })

  test('invalid JSON falls back to CSV row parsing', () => {
    const input = 'not json at all\n乳酸菌,3\n'
    const res = parseSeedsText(input)
    expect(res).toEqual([{ rawName: '乳酸菌', definitionId: 3 }])
  })

  test('non-numeric definitionId in CSV → null', () => {
    const input = '乳酸菌,abc\n'
    const res = parseSeedsText(input)
    expect(res).toEqual([{ rawName: '乳酸菌', definitionId: null }])
  })

  test('Chinese comma delimiter', () => {
    const input = '乳酸菌，3\n'
    const res = parseSeedsText(input)
    expect(res).toEqual([{ rawName: '乳酸菌', definitionId: 3 }])
  })
})