import { generate } from 'randomstring'
import * as msgpack from 'msgpackr'
import { read } from './messages'
import { createRequest } from './Server.fixtures'
import { BadRequest, UnsupportedMediaType } from './exceptions'

beforeEach(() => {
  jest.clearAllMocks()
})

describe('read', () => {
  it('should parse application/json', async () => {
    const path = generate()
    const headers = { 'content-type': 'application/json' }
    const input = { [generate()]: generate() }
    const json = JSON.stringify(input)
    const request = createRequest({ path, headers }, json)
    const output = await read(request)

    expect(output).toStrictEqual(input)
  })

  it('should parse application/yaml', async () => {
    const path = generate()
    const headers = { 'content-type': 'application/yaml' }
    const yaml = 'foo: 1'
    const request = createRequest({ path, headers }, yaml)
    const value = await read(request)

    expect(value).toStrictEqual({ foo: 1 })
  })

  it('should parse application/mskpack', async () => {
    const path = generate()
    const headers = { 'content-type': 'application/msgpack' }
    const input = { [generate()]: generate() }
    const msg = msgpack.encode(input)
    const request = createRequest({ path, headers }, msg)
    const output = await read(request)

    expect(output).toStrictEqual(input)
  })

  it('should parse text/plain', async () => {
    const path = generate()
    const headers = { 'content-type': 'text/plain' }
    const input = generate()
    const request = createRequest({ path, headers }, input)
    const output = await read(request)

    expect(output).toStrictEqual(input)
  })

  it('should throw on unsupported request media type', async () => {
    const path = generate()
    const headers = { 'content-type': 'wtf/' + generate() }
    const request = createRequest({ path, headers })

    await expect(read(request)).rejects.toThrow(UnsupportedMediaType)
  })

  it('should throw on malformed content', async () => {
    const path = generate()
    const text = '{ "foo": "val... oops '
    const headers = { 'content-type': 'application/json' }
    const request = createRequest({ path, headers }, text)

    await expect(read(request)).rejects.toThrow(BadRequest)
  })
})