import { renderHook } from '@testing-library/react'
import { beforeEach, describe, expect, it, vi } from 'vitest'
import { useGitHubReleases, useGitHubUpload } from '../hooks'

const mockNotify = vi.fn()
vi.mock('@/app/components/base/toast', () => ({
  default: { notify: (...args: unknown[]) => mockNotify(...args) },
}))

vi.mock('@/config', () => ({
  GITHUB_ACCESS_TOKEN: '',
}))

const mockUploadGitHub = vi.fn()
vi.mock('@/service/plugins', () => ({
  uploadGitHub: (...args: unknown[]) => mockUploadGitHub(...args),
}))

vi.mock('@/utils/semver', () => ({
  compareVersion: (a: string, b: string) => {
    const parseVersion = (v: string) => v.replace(/^v/, '').split('.').map(Number)
    const va = parseVersion(a)
    const vb = parseVersion(b)
    for (let i = 0; i < Math.max(va.length, vb.length); i++) {
      const diff = (va[i] || 0) - (vb[i] || 0)
      if (diff > 0)
        return 1
      if (diff < 0)
        return -1
    }
    return 0
  },
  getLatestVersion: (versions: string[]) => {
    return versions.sort((a, b) => {
      const pa = a.replace(/^v/, '').split('.').map(Number)
      const pb = b.replace(/^v/, '').split('.').map(Number)
      for (let i = 0; i < Math.max(pa.length, pb.length); i++) {
        const diff = (pa[i] || 0) - (pb[i] || 0)
        if (diff !== 0)
          return diff
      }
      return 0
    }).pop()!
  },
}))

const mockFetch = vi.fn()
globalThis.fetch = mockFetch

describe('install-plugin/hooks', () => {
  beforeEach(() => {
    vi.clearAllMocks()
  })

  describe('useGitHubReleases', () => {
    describe('fetchReleases', () => {
      it('fetches releases from GitHub API and formats them', async () => {
        mockFetch.mockResolvedValue({
          ok: true,
          json: () => Promise.resolve([
            {
              tag_name: 'v1.0.0',
              assets: [{ browser_download_url: 'https://example.com/v1.zip', name: 'plugin.zip' }],
              body: 'Release notes',
            },
          ]),
        })

        const { result } = renderHook(() => useGitHubReleases())
        const releases = await result.current.fetchReleases('owner', 'repo')

        expect(releases).toHaveLength(1)
        expect(releases[0].tag_name).toBe('v1.0.0')
        expect(releases[0].assets[0].name).toBe('plugin.zip')
        expect(releases[0]).not.toHaveProperty('body')
      })

      it('returns empty array and shows toast on fetch error', async () => {
        mockFetch.mockResolvedValue({
          ok: false,
        })

        const { result } = renderHook(() => useGitHubReleases())
        const releases = await result.current.fetchReleases('owner', 'repo')

        expect(releases).toEqual([])
        expect(mockNotify).toHaveBeenCalledWith(
          expect.objectContaining({ type: 'error' }),
        )
      })
    })

    describe('checkForUpdates', () => {
      it('detects newer version available', () => {
        const { result } = renderHook(() => useGitHubReleases())
        const releases = [
          { tag_name: 'v1.0.0', assets: [] },
          { tag_name: 'v2.0.0', assets: [] },
        ]
        const { needUpdate, toastProps } = result.current.checkForUpdates(releases, 'v1.0.0')
        expect(needUpdate).toBe(true)
        expect(toastProps.message).toContain('v2.0.0')
      })

      it('returns no update when current is latest', () => {
        const { result } = renderHook(() => useGitHubReleases())
        const releases = [
          { tag_name: 'v1.0.0', assets: [] },
        ]
        const { needUpdate, toastProps } = result.current.checkForUpdates(releases, 'v1.0.0')
        expect(needUpdate).toBe(false)
        expect(toastProps.type).toBe('info')
      })

      it('returns error for empty releases', () => {
        const { result } = renderHook(() => useGitHubReleases())
        const { needUpdate, toastProps } = result.current.checkForUpdates([], 'v1.0.0')
        expect(needUpdate).toBe(false)
        expect(toastProps.type).toBe('error')
        expect(toastProps.message).toContain('empty')
      })
    })
  })

  describe('useGitHubUpload', () => {
    it('uploads successfully and calls onSuccess', async () => {
      const mockManifest = { name: 'test-plugin' }
      mockUploadGitHub.mockResolvedValue({
        manifest: mockManifest,
        unique_identifier: 'uid-123',
      })
      const onSuccess = vi.fn()

      const { result } = renderHook(() => useGitHubUpload())
      const pkg = await result.current.handleUpload(
        'https://github.com/owner/repo',
        'v1.0.0',
        'plugin.difypkg',
        onSuccess,
      )

      expect(mockUploadGitHub).toHaveBeenCalledWith(
        'https://github.com/owner/repo',
        'v1.0.0',
        'plugin.difypkg',
      )
      expect(onSuccess).toHaveBeenCalledWith({
        manifest: mockManifest,
        unique_identifier: 'uid-123',
      })
      expect(pkg.unique_identifier).toBe('uid-123')
    })

    it('shows toast on upload error', async () => {
      mockUploadGitHub.mockRejectedValue(new Error('Upload failed'))

      const { result } = renderHook(() => useGitHubUpload())
      await expect(
        result.current.handleUpload('url', 'v1', 'pkg'),
      ).rejects.toThrow('Upload failed')
      expect(mockNotify).toHaveBeenCalledWith(
        expect.objectContaining({ type: 'error', message: 'Error uploading package' }),
      )
    })
  })
})