// Brent Shambaugh <brent.shambaugh@gmail.com>. 2021.

import * as varint from 'varint'
import * as mapper from '../drivers/secp521r1'
import * as u8a from 'uint8arrays'
import { base58btc } from 'multiformats/bases/base58'

describe('Secp521r1 mapper', () => {
  /*  const mf = await import('multiformats/bases/base58')
  const base58btc = mf.base58btc*/
  // testing the key from the did:key from the compressed public key
  it('successfully resolves the document from did', async () => {
    const id = 'z2J9gcGdb2nEyMDmzQYv2QZQcM1vXktvy1Pw4MduSWxGabLZ9XESSWLQgbuPhwnXN7zP7HpTzWqrMTzaY5zWe6hpzJ2jnw4f'
    const multiformatPubKey = base58btc.decode(id)
    varint.decode(multiformatPubKey) // decode is changing param multiformatPubKey as well
    const pubKeyBytes = multiformatPubKey.slice(varint.decode.bytes)
    const doc = await mapper.keyToDidDoc(pubKeyBytes, id)
    expect(doc).toMatchSnapshot()
  })

  // testing the key from the did:key from the compressed public key
  it('successfully resolves the document from did', async () => {
    const id = 'z2J9gaYxrKVpdoG9A4gRnmpnRCcxU6agDtFVVBVdn1JedouoZN7SzcyREXXzWgt3gGiwpoHq7K68X4m32D8HgzG8wv3sY5j7'
    const multiformatPubKey = base58btc.decode(id)
    varint.decode(multiformatPubKey) // decode is changing param multiformatPubKey as well
    const pubKeyBytes = multiformatPubKey.slice(varint.decode.bytes)
    const doc = await mapper.keyToDidDoc(pubKeyBytes, id)
    expect(doc).toMatchSnapshot()
  })

  // testing the key from the did:key from the compressed public key
  it('successfully resolves the document from did', async () => {
    const id = 'z2J9gaYaTUV4Ps5GYNNMm4nAyj4pGxd3Nh2zyeFjpEy631ZJ3dYfTDZ68GAhYbNuTn2eMAhKd6hhbzfxLn66vrQ6992jCSxX'
    const multiformatPubKey = base58btc.decode(id)
    varint.decode(multiformatPubKey) // decode is changing param multiformatPubKey as well
    const pubKeyBytes = multiformatPubKey.slice(varint.decode.bytes)
    const doc = await mapper.keyToDidDoc(pubKeyBytes, id)
    expect(doc).toMatchSnapshot()
  })

  // testing the key from the did:key from the compressed public key
  it('successfully resolves the document from did', async () => {
    const id = 'z2J9gcGTLNfNooB4Mvx7qeEBccSWARJ3y1xjwbMH9A7ra6oq71rD1daVSVm2YmjUZRWJms18QTZXTnhaH5ihiKiVaG52cuAs'
    const multiformatPubKey = base58btc.decode(id)
    varint.decode(multiformatPubKey) // decode is changing param multiformatPubKey as well
    const pubKeyBytes = multiformatPubKey.slice(varint.decode.bytes)
    const doc = await mapper.keyToDidDoc(pubKeyBytes, id)
    expect(doc).toMatchSnapshot()
  })

  // testing the key from the did:key from the compressed public key
  it('successfully resolves the document from did', async () => {
    const id = 'z2J9gaZDkUkcV4j5nMPp4dzks3vygMwKRSZWg9j7HNYcR5JLRu361LN6TwrBK3r19VisFYUZEGEXhqqffAprjgmVtCwfCUB1'
    const multiformatPubKey = base58btc.decode(id)
    varint.decode(multiformatPubKey) // decode is changing param multiformatPubKey as well
    const pubKeyBytes = multiformatPubKey.slice(varint.decode.bytes)
    const doc = await mapper.keyToDidDoc(pubKeyBytes, id)
    expect(doc).toMatchSnapshot()
  })

  // testing the key from the did:key from the compressed public key
  it('successfully resolves the document from did', async () => {
    const id = 'z2J9gaYd3MzVdZSQDj1zqsxv2tLD5Np3oD7G5F5dHbsF7Sbf1ovGkRfFcaUZMSSDKheREWxapez3vzVwkRYvrSMt4PM4Am1z'
    const multiformatPubKey = base58btc.decode(id)
    varint.decode(multiformatPubKey) // decode is changing param multiformatPubKey as well
    const pubKeyBytes = multiformatPubKey.slice(varint.decode.bytes)
    const doc = await mapper.keyToDidDoc(pubKeyBytes, id)
    expect(doc).toMatchSnapshot()
  })

  // testing the key from the did:key from the compressed public key
  it('successfully resolves the document from did', async () => {
    const id = 'z2J9gaYhkf4Ax2QA65KkcrSxr8JDSxUBwzFq3jmq5iBroY2tE7s1uohXVqEvALPxbvdzbWWQTtHvTprUdbNFha3HawyPcD9P'

    const multiformatPubKey = base58btc.decode(id)
    varint.decode(multiformatPubKey) // decode is changing param multiformatPubKey as well
    const pubKeyBytes = multiformatPubKey.slice(varint.decode.bytes)
    const doc = await mapper.keyToDidDoc(pubKeyBytes, id)
    expect(doc).toMatchSnapshot()
  })

  // testing the key from the did:key from the compressed public key
  it('successfully resolves the document from did', async () => {
    const id = 'z2J9gcGdbo8riFqfRzgo3gjJyFcbNJm75hrnpDrZTNqQQxgNVBTtKndBiKxzGXrAbyw5W88VDbR1B1FvRQNTnSezghqnJ7p6'

    const multiformatPubKey = base58btc.decode(id)
    varint.decode(multiformatPubKey) // decode is changing param multiformatPubKey as well
    const pubKeyBytes = multiformatPubKey.slice(varint.decode.bytes)
    const doc = await mapper.keyToDidDoc(pubKeyBytes, id)
    expect(doc).toMatchSnapshot()
  })

  // testing the key from the did:key from the compressed public key
  it('successfully resolves the document from did', async () => {
    const id = 'z2J9gcGTjd3NaNifwmaNZN27xioMAzHHCDBmkuQ552hm9kWrzhUepDCSAhiuRYBj1sSXR1LBxgqh6vasYzc8JhC12FpaNDhT'

    const multiformatPubKey = base58btc.decode(id)
    varint.decode(multiformatPubKey) // decode is changing param multiformatPubKey as well
    const pubKeyBytes = multiformatPubKey.slice(varint.decode.bytes)
    const doc = await mapper.keyToDidDoc(pubKeyBytes, id)
    expect(doc).toMatchSnapshot()
  })
})

test('expect publicKeyBytesToXY to throw an error for undefined', () => {
  expect(() => {
    mapper.pubKeyBytesToXY(undefined as never)
  }).toThrowError('input must be a Uint8Array')
})

test('expect publicKeyBytesToXY to throw an error for null', () => {
  expect(() => {
    mapper.pubKeyBytesToXY(null as never)
  }).toThrowError('input must be a Uint8Array')
})

test('expect publicKeyBytesToXY to throw an error for and integer input', () => {
  expect(() => {
    // @ts-ignore
    mapper.pubKeyBytesToXY(5)
  }).toThrowError('input must be a Uint8Array')
})

test('test a compressed public key in hex to an x,y point with x, and y url encoded with an unsupported prefixi: try2', () => {
  const inputPublicKeyHex =
    '050013673d87114741d183ee420e19472782c1c50a35794abad05d453246b5fd56c1bbb6baea58fa5a19e26586d4bc3db18ff91fac537cdf0913a204c5c6a9949cce8c'
  const publicKey_u8a = pubKeyHexToUint8Array(inputPublicKeyHex)
  expect(() => {
    mapper.pubKeyBytesToXY(publicKey_u8a)
  }).toThrowError('Unexpected pubKeyBytes')
})

test('test a compressed public key in hex to an x,y point with x, and y url encoded with an unsupported prefixi: try3', () => {
  const inputPublicKeyHex =
    '040024fd2216f69ad8a84a8ec630fa4879f82639795a83fa07769d134544130f3af5cfd86ff5460ee7e88a21115cfb9c91898c8ca492feca1992b35c23690af58bd112'
  const publicKey_u8a = pubKeyHexToUint8Array(inputPublicKeyHex)
  expect(() => {
    mapper.pubKeyBytesToXY(publicKey_u8a)
  }).toThrowError('Unexpected pubKeyBytes')
})

test('test a compressed public key in hex to an x,y point with x, and y url encoded with an unsupported prefix', () => {
  const inputPublicKeyHex =
    '010024fd2216f69ad8a84a8ec630fa4879f82639795a83fa07769d134544130f3af5cfd86ff5460ee7e88a21115cfb9c91898c8ca492feca1992b35c23690af58bd112'
  const publicKey_u8a = pubKeyHexToUint8Array(inputPublicKeyHex)
  expect(() => {
    mapper.pubKeyBytesToXY(publicKey_u8a)
  }).toThrowError('Unexpected pubKeyBytes')
})

test('test a compressed public key in hex to an x,y point with x, and y url encoded with an unexpected length', () => {
  const inputPublicKeyHex = '030024fd2216f69ad8a84a8ec630fa4879f82639795a83fa07769d134544130f3af5cfd86ff5460ee7e88a21115cfb9c91898c8ca492feca19'
  const publicKey_u8a = pubKeyHexToUint8Array(inputPublicKeyHex)
  expect(() => {
    mapper.pubKeyBytesToXY(publicKey_u8a)
  }).toThrowError('Unexpected pubKeyBytes')
})

test('test a hex string longer than 67 bytes', () => {
  const inputPublicKeyHex =
    '010024fd2216f69ad8a84a8ec630fa4879f82639795a83fa07769d134544130f3af5cfd86ff5460ee7e88a21115cfb9c91898c8ca492feca1992b35c23690af58bd112000'
  const publicKey_u8a = pubKeyHexToUint8Array(inputPublicKeyHex)
  expect(() => {
    mapper.pubKeyBytesToXY(publicKey_u8a)
  }).toThrowError('Unexpected pubKeyBytes')
})

test('test a hex string longer than 67 bytes: try2', () => {
  const inputPublicKeyHex =
    '030024fd2216f69ad8a84a8ec630fa4879f82639795a83fa07769d134544130f3af5cfd86ff5460ee7e88a21115cfb9c91898c8ca492feca1992b35c23690af58bd11200'
  const publicKey_u8a = pubKeyHexToUint8Array(inputPublicKeyHex)
  expect(() => {
    mapper.pubKeyBytesToXY(publicKey_u8a)
  }).toThrowError('Unexpected pubKeyBytes')
})

test('test a compressed public key in hex to an x,y point with x, and y url encoded', () => {
  const inputPublicKeyHex =
    '0300978fcb87684ebbfb723e695fa6e46640e05624f3e3be9e01c23f713088aa542a8006c259b6a8152f5991bf3713eada06b9eb30c0fcc5c9f877143e51d0c960f8e4'
  const output = {
    xm: 'l4_Lh2hOu_tyPmlfpuRmQOBWJPPjvp4Bwj9xMIiqVCqABsJZtqgVL1mRvzcT6toGueswwPzFyfh3FD5R0Mlg-OQ',
    ym: 'iV1Wy8VO05NKYylHjeXy7RL5zM2gG5pP8PIqBjbFXdo9MPZ3MsyyIF54Ykz76jFp55cD3CrynsUTD41JCQyFrJs',
  }
  const publicKey_u8a = pubKeyHexToUint8Array(inputPublicKeyHex)
  const pubKeyBytesToXY = mapper.pubKeyBytesToXY(publicKey_u8a)
  expect(pubKeyBytesToXY).toEqual(output)
})

//**** end of tests

// Function for test. Eliminate this when key-did-resolver is written.

function pubKeyHexToUint8Array(publicKeyHex: string) {
  if (!publicKeyHex) {
    throw new TypeError('input cannot be null or undefined.')
  }
  if (publicKeyHex.length % 2 == 0) {
    return u8a.fromString(publicKeyHex, 'base16')
  } else {
    return u8a.fromString('0' + publicKeyHex, 'base16')
  }
}