import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
import { createPinia, setActivePinia } from 'pinia'
import axios, { type AxiosRequestConfig } from 'axios'

import { useExperimentSamples } from '../../composables/useExperimentSamples'

let fakeResponse: unknown = null
let fakeError: Error | null = null
let recordedUrls: string[] = []

describe('useExperimentSamples', () => {
  beforeEach(() => {
    setActivePinia(createPinia())
    fakeResponse = {}
    fakeError = null
    recordedUrls = []
    vi.spyOn(axios.Axios.prototype, 'get').mockImplementation(async function (
      this: unknown,
      url: string,
      _config?: AxiosRequestConfig,
    ) {
      recordedUrls.push(url)
      if (fakeError) throw fakeError
      return { data: fakeResponse }
    })
  })

  afterEach(() => {
    vi.restoreAllMocks()
  })

  it('derives samples from pre-fetched MS Designer design_data', () => {
    const hook = useExperimentSamples({
      syncAppExperiment: false,
      designData: {
        samples: [
          { sample_name: 'S1', sample_type: 'sample', conditions: { group: 'A' } },
          { sample_name: 'QC1', sample_type: 'qc', conditions: { group: 'QC' } },
        ],
      },
    })

    expect(hook.samples.value).toEqual(['S1'])
    expect(hook.sampleOptions.value).toEqual([{ value: 'S1', label: 'S1' }])
    expect(recordedUrls).toEqual([])
  })

  it('loads and unwraps platform design_data for an experiment id', async () => {
    fakeResponse = {
      experiment_id: 7,
      plugin_id: 'ms-designer',
      data: {
        samples: [
          { sample_name: 'S1', sample_type: 'sample' },
          { sample_name: 'S2', sample_type: 'sample' },
        ],
      },
      schema_version: '1.0',
    }
    const hook = useExperimentSamples({ syncAppExperiment: false, immediate: false })

    await hook.fetch(7)

    expect(recordedUrls).toEqual(['/experiments/7/data'])
    expect(hook.samples.value).toEqual(['S1', 'S2'])
  })

  it('extracts options from template collection sample sheets', () => {
    const hook = useExperimentSamples({
      syncAppExperiment: false,
      designData: {
        templates: {
          'sample-sheet': {
            data: {
              samples: [
                { sampleId: 'ctrl', name: 'Control', group: 'baseline' },
                { sampleId: 'drug', name: 'Drug', group: 'treated' },
              ],
            },
          },
        },
      },
    })

    expect(hook.samples.value).toEqual(['ctrl', 'drug'])
    expect(hook.sampleOptions.value).toEqual([
      { value: 'ctrl', label: 'Control', description: 'baseline' },
      { value: 'drug', label: 'Drug', description: 'treated' },
    ])
  })
})