import { Buffer } from 'node:buffer'

import { describe, expect, it, vi } from 'vitest'

vi.mock('electron', () => ({
  nativeImage: {
    createFromBuffer: () => ({
      isEmpty: () => false,
      getSize: () => ({ width: 1, height: 1 }),
      crop: () => ({
        isEmpty: () => false,
        getSize: () => ({ width: 1, height: 1 }),
        toPNG: () => Buffer.from([]),
      }),
      toPNG: () => Buffer.from([]),
    }),
  },
}))

vi.mock('../transport/api-client', () => ({
  fetchDesktopApiURL: vi.fn(),
  resolveDesktopApiURL: (path: string) => `http://127.0.0.1:8080${path}`,
}))

import { buildAssetURLCandidates, getCenteredCropRect } from './media-image'

describe('media image helpers', () => {
  it('resolves public asset URLs through public and authenticated desktop candidates', () => {
    expect(buildAssetURLCandidates('/api/public/assets/12')).toEqual([
      'http://127.0.0.1:8080/api/public/assets/12?format=png',
      'http://127.0.0.1:8080/api/desktop/content/assets/12?format=png',
      'http://127.0.0.1:8080/api/public/assets/12',
    ])
  })

  it('can prefer jpeg conversion for platforms that reject large png uploads', () => {
    expect(buildAssetURLCandidates('/api/public/assets/12', { preferredFormat: 'jpg' })).toEqual([
      'http://127.0.0.1:8080/api/public/assets/12?format=jpg',
      'http://127.0.0.1:8080/api/desktop/content/assets/12?format=jpg',
      'http://127.0.0.1:8080/api/public/assets/12',
    ])
  })

  it('centers crop rectangles at the requested ratio', () => {
    const rect = getCenteredCropRect(1600, 1000, 4 / 3)

    expect(rect.x).toBeCloseTo(133.333, 3)
    expect(rect.y).toBeCloseTo(0)
    expect(rect.width).toBeCloseTo(1333.333, 3)
    expect(rect.height).toBeCloseTo(1000)
  })
})