import { assert } from 'chai'
import { SHA256 } from 'crypto-js'
import {
  AmountsOutMaxFee,
  approve,
  Aquarius,
  balance,
  Config,
  Datatoken,
  downloadFile,
  Erc20CreateParams,
  getHash,
  Nft,
  NftCreateData,
  NftFactory,
  Pool,
  PoolCreationParams,
  ProviderFees,
  ProviderInstance,
  TokenInOutMarket,
  ZERO_ADDRESS
} from '../../src'
import { getTestConfig, web3 } from '../config'
import { Addresses, deployContracts } from '../TestContractHandler'

describe('Marketplace flow tests', async () => {
  let config: Config
  let aquarius: Aquarius
  let providerUrl: any
  let publisherAccount: string
  let consumerAccount: string
  let contracts: Addresses
  let erc721Address: string
  let datatokenAddress: string
  let poolAddress: string

  const NFT_NAME = 'Datatoken 1'
  const NFT_SYMBOL = 'DT1'
  const CAP_AMOUNT = '100000'

  const ASSET_URL = [
    {
      type: 'url',
      url: 'https://raw.githubusercontent.com/oceanprotocol/testdatasets/main/shs_dataset_test.txt',
      method: 'GET'
    }
  ]

  const DDO = {
    '@context': ['https://w3id.org/did/v1'],
    id: '',
    version: '4.0.0',
    chainId: 4,
    nftAddress: '0x0',
    metadata: {
      created: '2021-12-20T14:35:20Z',
      updated: '2021-12-20T14:35:20Z',
      type: 'dataset',
      name: 'dataset-name',
      description: 'Ocean protocol test dataset description',
      author: 'oceanprotocol-team',
      license: 'MIT'
    },
    services: [
      {
        id: 'testFakeId',
        type: 'access',
        files: '',
        datatokenAddress: '0x0',
        serviceEndpoint: 'https://providerv4.rinkeby.oceanprotocol.com',
        timeout: 0
      }
    ]
  }

  before(async () => {
    config = await getTestConfig(web3)
    aquarius = new Aquarius(config.metadataCacheUri)
    providerUrl = 'http://127.0.0.1:8030' // config.providerUri

    console.log(`Aquarius URL: ${config.metadataCacheUri}`)
    console.log(`Provider URL: ${providerUrl}`)
  })

  it('initialize accounts', async () => {
    const accounts = await web3.eth.getAccounts()
    publisherAccount = accounts[0]
    consumerAccount = accounts[1]

    console.log(`Publisher account address: ${publisherAccount}`)
    console.log(`Consumer account address: ${consumerAccount}`)
  })

  it('deploy contracts', async () => {
    contracts = await deployContracts(web3, publisherAccount)

    await approve(
      web3,
      publisherAccount,
      contracts.oceanAddress,
      contracts.erc721FactoryAddress,
      '10000'
    )
  })

  it('publish a dataset (create NFT + ERC20) with a liquidity pool', async () => {
    const factory = new NftFactory(contracts.erc721FactoryAddress, web3)

    const nftParams: NftCreateData = {
      name: NFT_NAME,
      symbol: NFT_SYMBOL,
      templateIndex: 1,
      tokenURI: '',
      transferable: true,
      owner: publisherAccount
    }

    const erc20Params: Erc20CreateParams = {
      templateIndex: 1,
      cap: CAP_AMOUNT,
      feeAmount: '0',
      paymentCollector: ZERO_ADDRESS,
      feeToken: ZERO_ADDRESS,
      minter: publisherAccount,
      mpFeeAddress: ZERO_ADDRESS
    }

    const poolParams: PoolCreationParams = {
      ssContract: contracts.sideStakingAddress,
      baseTokenAddress: contracts.oceanAddress,
      baseTokenSender: contracts.erc721FactoryAddress,
      publisherAddress: publisherAccount,
      marketFeeCollector: publisherAccount,
      poolTemplateAddress: contracts.poolTemplateAddress,
      rate: '1',
      baseTokenDecimals: 18,
      vestingAmount: '10000',
      vestedBlocks: 2500000,
      initialBaseTokenLiquidity: '2000',
      swapFeeLiquidityProvider: '0.001',
      swapFeeMarketRunner: '0.001'
    }

    const tx = await factory.createNftErc20WithPool(
      publisherAccount,
      nftParams,
      erc20Params,
      poolParams
    )

    erc721Address = tx.events.NFTCreated.returnValues[0]
    datatokenAddress = tx.events.TokenCreated.returnValues[0]
    poolAddress = tx.events.NewPool.returnValues[0]

    console.log(`NFT address: ${erc721Address}`)
    console.log(`Datatoken address: ${datatokenAddress}`)
    console.log(`Pool address: ${poolAddress}`)

    // update ddo and set the right did
    DDO.chainId = await web3.eth.getChainId()
    DDO.id =
      'did:op:' +
      SHA256(web3.utils.toChecksumAddress(erc721Address) + DDO.chainId.toString(10))
    DDO.nftAddress = erc721Address
    // encrypt file(s) using provider
    const encryptedFiles = await ProviderInstance.encrypt(ASSET_URL, providerUrl)
    DDO.services[0].files = await encryptedFiles
    DDO.services[0].datatokenAddress = datatokenAddress

    console.log(`DID: ${DDO.id}`)
  })

  it('set metadata in the NFT', async () => {
    const nft = new Nft(web3)
    const providerResponse = await ProviderInstance.encrypt(DDO, providerUrl)
    const encryptedDDO = await providerResponse
    const metadataHash = getHash(JSON.stringify(DDO))
    await nft.setMetadata(
      erc721Address,
      publisherAccount,
      0,
      providerUrl,
      '',
      '0x2',
      encryptedDDO,
      '0x' + metadataHash
    )
    // TODO: const resolvedDDO = await aquarius.waitForAqua(DDO.id)
    // TODO: assert(resolvedDDO, 'Cannot fetch DDO from Aquarius')
  })

  it('marketplace displays asset for sale', async () => {
    const pool = new Pool(web3)
    const prices = await pool.getAmountInExactOut(
      poolAddress,
      datatokenAddress,
      contracts.oceanAddress,
      '1',
      '0.01'
    )
    console.log(`Price of 1 ${NFT_SYMBOL} is ${prices.tokenAmount} OCEAN`)
  })

  it('consumer buys data asset, and downloads it', async () => {
    const datatoken = new Datatoken(web3)

    const consumerETHBalance = await web3.eth.getBalance(consumerAccount)
    console.log(`Consumer ETH balance: ${consumerETHBalance}`)
    let consumerOCEANBalance = await balance(
      web3,
      contracts.oceanAddress,
      publisherAccount
    )
    console.log(`Consumer OCEAN balance before swap: ${consumerOCEANBalance}`)
    let consumerDTBalance = await balance(web3, datatokenAddress, publisherAccount)
    console.log(`Consumer ${NFT_SYMBOL} balance before swap: ${consumerDTBalance}`)

    await approve(web3, publisherAccount, contracts.oceanAddress, poolAddress, '100')

    const pool = new Pool(web3)
    const tokenInOutMarket: TokenInOutMarket = {
      tokenIn: contracts.oceanAddress,
      tokenOut: datatokenAddress,
      marketFeeAddress: publisherAccount
    }
    const amountsInOutMaxFee: AmountsOutMaxFee = {
      maxAmountIn: '10',
      tokenAmountOut: '1',
      swapMarketFee: '0.1'
    }
    await pool.swapExactAmountOut(
      publisherAccount,
      poolAddress,
      tokenInOutMarket,
      amountsInOutMaxFee
    )

    consumerOCEANBalance = await balance(web3, contracts.oceanAddress, publisherAccount)
    console.log(`Consumer OCEAN balance after swap: ${consumerOCEANBalance}`)
    consumerDTBalance = await balance(web3, datatokenAddress, publisherAccount)
    console.log(`Consumer ${NFT_SYMBOL} balance after swap: ${consumerDTBalance}`)

    // initialize provider
    const initializeData = await ProviderInstance.initialize(
      DDO.id,
      DDO.services[0].id,
      0,
      consumerAccount,
      providerUrl
    )
    const providerFees: ProviderFees = {
      providerFeeAddress: initializeData.providerFee.providerFeeAddress,
      providerFeeToken: initializeData.providerFee.providerFeeToken,
      providerFeeAmount: initializeData.providerFee.providerFeeAmount,
      v: initializeData.providerFee.v,
      r: initializeData.providerFee.r,
      s: initializeData.providerFee.s,
      providerData: initializeData.providerFee.providerData,
      validUntil: initializeData.providerFee.validUntil
    }
    // make the payment
    const txid = await datatoken.startOrder(
      datatokenAddress,
      publisherAccount,
      publisherAccount,
      0,
      providerFees
    )
    // get the url
    const downloadURL = await ProviderInstance.getDownloadUrl(
      DDO.id,
      publisherAccount,
      DDO.services[0].id,
      0,
      txid.transactionHash,
      providerUrl,
      web3
    )

    console.log(`Download URL: ${downloadURL}`)

    consumerOCEANBalance = await balance(web3, contracts.oceanAddress, publisherAccount)
    console.log(`Consumer OCEAN balance after order: ${consumerOCEANBalance}`)
    consumerDTBalance = await balance(web3, datatokenAddress, publisherAccount)
    console.log(`Consumer ${NFT_SYMBOL} balance after order: ${consumerDTBalance}`)

    try {
      const fileData = await downloadFile(downloadURL)
      console.log(fileData)
    } catch (e) {
      assert.fail('Download failed')
    }
  })
})