import {describe, expect, test, } from '@jest/globals'
import { loadPlugins, Plugin, } from './plugin'
import { Config, } from '.'

const TEST_VALUE = {test: 'example',}
const FAKE_CONFIG = {} as Config

describe('Plugins test', () => {
  test('Test loading 0 plugins', async () => {
    const result = await loadPlugins(FAKE_CONFIG, [], {})
    expect(result).toEqual({})
  })
  test('Load 1 plugin with just its options', async () => {
    const plugin = jest.fn().mockResolvedValue(TEST_VALUE)
    const option = {test: 'option directly in the option object',}
    const result = await loadPlugins(FAKE_CONFIG, [plugin,], option)
    expect(result).toEqual(TEST_VALUE)
    expect(plugin.mock.calls).toHaveLength(1)
    expect(plugin.mock.calls[0][0]).toBe(FAKE_CONFIG)
    expect(plugin.mock.calls[0][1]).toBe(option)
  })
  test('Test loadPlugins', async () => {
    const plugin = '../examples/plugin.js' as Plugin
    const options = {}
    const result = await loadPlugins(FAKE_CONFIG, [plugin,], options)
    expect(result).toEqual(TEST_VALUE)
  })
  test('Add a function plugin', async () => {
    const option = {}
    const plugin = jest.fn().mockResolvedValue(TEST_VALUE)
    const result = await loadPlugins(FAKE_CONFIG, [plugin,], {[plugin.toString()]: option,})
    // Check that the config includes the plugin result
    expect(result).toEqual(TEST_VALUE)

    // Check the plugin calls
    // loadPlugins is called because of the mock
    expect(plugin.mock.calls).toHaveLength(1)
    expect(plugin.mock.calls[0][0]).toBe(FAKE_CONFIG)
    expect(plugin.mock.calls[0][1]).toBe(option)
  })
  test('Assync function support', async () => {
    const option = {}
    async function wait(ms = 100) {
      return new Promise(resolve => setTimeout(resolve, ms))
    }
    let done = false
    async function plugin() {
      await wait(100)
      done = true
      return TEST_VALUE
    }
    loadPlugins(FAKE_CONFIG, [plugin,], {[plugin.toString()]: option,})
    expect(done).toBe(false)
    await wait(200)
    expect(done).toBe(true)
  })
})