import
  .. / src / [utils / hexadecimal, utils / address, chain, constants, db, db / chain, vm / forks / frontier]

# This block is a child of the genesis defined in the chain fixture above and contains a single tx
# that transfers 10 wei from 0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b to
# 0x095e7baea6a6c7c4c2dfeb977efac326af552d87.
var validBlockRlp = decodeHex(
    "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")  # noqa: E501

type
  PrivateKey = object # TODO
    publicKey*: cstring

proc testChain*: Chain =
  # Return a Chain object containing just the genesis block.
  #
  # This Chain does not perform any validation when importing new blocks.
  #
  # The Chain's state includes one funded account and a private key for it, which can be found in
  # the funded_address and private_keys variables in the chain itself.
  # Disable block validation so that we don't need to construct finalized blocks.
 
  var klass = configureChain(
    "TestChainWithoutBlockValidation",
    constants.GENESIS_BLOCK_NUMBER,
    FrontierVM,
    importBlock=false,
    validateBlock=false)

  var privateKey = PrivateKey(publicKey: cstring"0x45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8") # TODO
  var fundedAddress = privateKey.publicKey.toCanonicalAddress()
  var initialBalance = 100_000_000
  var genesisParams = GenesisParams(
    blockNumber: constants.GENESIS_BLOCK_NUMBER,
    difficulty: constants.GENESIS_DIFFICULTY,
    gasLimit: constants.GENESIS_GAS_LIMIT,
    parentHash: constants.GENESIS_PARENT_HASH,
    coinbase: constants.GENESIS_COINBASE,
    nonce: constants.GENESIS_NONCE,
    mixHash: constants.GENESIS_MIX_HASH,
    extraData: constants.GENESIS_EXTRA_DATA,
    timestamp: 1501851927,
    stateRoot: decodeHex("0x9d354f9b5ba851a35eced279ef377111387197581429cfcc7f744ef89a30b5d4"))

  var genesisState = GenesisState(
    fundedAddress: FundedAddress(
      balance: initialBalance,
      nonce: 0,
      code: cstring""))

  result = klass.fromGenesis(newBaseChainDB(getDbBackend()), genesisParams, genesisState)
  result.fundedAddress = fundedAddress
  result.fundedAddressInitialBalance = initialBalance
  result.fundedAddressPrivateKey = privateKey