# Nimbus
# Copyright (c) 2018 Status Research & Development GmbH
# Licensed under either of
#  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
#  * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed except according to those terms.

import
  std/[json, os, tables, strutils],
  unittest2,
  stew/byteutils,
  ./test_helpers,
  ../nimbus/vm_types,
  ../nimbus/tracer,
  ../nimbus/common/common

proc testFixture(node: JsonNode, testStatusIMPL: var TestStatus)

proc tracerJsonMain*() =
  suite "tracer json tests":
    jsonTest("TracerTests", testFixture)

# use tracerTestGen.nim to generate additional test data
proc testFixture(node: JsonNode, testStatusIMPL: var TestStatus) =
  var
    blockNumber = UInt256.fromHex(node["blockNumber"].getStr())
    memoryDB = newMemoryDB()
    com = CommonRef.new(memoryDB, chainConfigForNetwork(MainNet))
    state = node["state"]
    receipts = node["receipts"]

  # disable POS/post Merge feature
  com.setTTD none(DifficultyInt)

  for k, v in state:
    let key = hexToSeqByte(k)
    let value = hexToSeqByte(v.getStr())
    memoryDB.put(key, value)

  var header = com.db.getBlockHeader(blockNumber)
  var headerHash = header.blockHash
  var blockBody = com.db.getBlockBody(headerHash)

  let txTraces = traceTransactions(com, header, blockBody)
  let stateDump = dumpBlockState(com, header, blockBody)
  let blockTrace = traceBlock(com, header, blockBody, {DisableState})

  check node["txTraces"] == txTraces
  check node["stateDump"] == stateDump
  check node["blockTrace"] == blockTrace
  for i in 0 ..< receipts.len:
    let receipt = receipts[i]
    let stateDiff = txTraces[i]["stateDiff"]
    check receipt["root"].getStr().toLowerAscii() == stateDiff["afterRoot"].getStr().toLowerAscii()

when isMainModule:
  tracerJsonMain()