mode = ScriptMode.Verbose

import std/os except commandLineParams
import std/strutils

### Helper functions
proc truthy(val: string): bool =
  const truthySwitches = @["yes", "1", "on", "true"]
  return val in truthySwitches

proc buildBinary(name: string, srcDir = "./", params = "", lang = "c") =
  if not dirExists "build":
    mkDir "build"

  # allow something like "nim nimbus --verbosity:0 --hints:off nimbus.nims"
  var extra_params = params
  when compiles(commandLineParams):
    for param in commandLineParams():
      extra_params &= " " & param
  else:
    for i in 2 ..< paramCount():
      extra_params &= " " & paramStr(i)

  let
    # Place build output in 'build' folder, even if name includes a longer path.
    outName = os.lastPathPart(name)
    cmd =
      "nim " & lang & " --out:build/" & outName & " " & extra_params & " " & srcDir &
      name & ".nim"

  exec(cmd)

proc test(name: string, srcDir = "tests/", params = "", lang = "c") =
  buildBinary name, srcDir, params
  exec "build/" & name

task codex, "build codex binary":
  buildBinary "codex",
    params = "-d:chronicles_runtime_filtering -d:chronicles_log_level=TRACE"

task toolsCirdl, "build tools/cirdl binary":
  buildBinary "tools/cirdl/cirdl"

task testCodex, "Build & run Codex tests":
  test "testCodex", params = "-d:codex_enable_proof_failures=true"

task testContracts, "Build & run Codex Contract tests":
  test "testContracts"

task testIntegration, "Run integration tests":
  buildBinary "codex",
    params =
      "-d:chronicles_runtime_filtering -d:chronicles_log_level=TRACE -d:codex_enable_proof_failures=true"
  var testParams = ""
  for i in 2 ..< paramCount():
    if "DebugTestHarness" in paramStr(i) and truthy paramStr(i).split('=')[1]:
      testParams = "-d:chronicles_log_level=TRACE -d:chronicles_sinks=textlines[stdout]"
  test "testIntegration", params = testParams
  # use params to enable logging from the integration test executable
  # test "testIntegration", params = "-d:chronicles_sinks=textlines[notimestamps,stdout],textlines[dynamic] " &
  #   "-d:chronicles_enabled_topics:integration:TRACE"  

task build, "build codex binary":
  codexTask()

task test, "Run tests":
  testCodexTask()

task testTools, "Run Tools tests":
  toolsCirdlTask()
  test "testTools"

task testAll, "Run all tests (except for Taiko L2 tests)":
  testCodexTask()
  testContractsTask()
  testIntegrationTask()
  testToolsTask()

task testTaiko, "Run Taiko L2 tests":
  codexTask()
  test "testTaiko"

import strutils
import os

task coverage, "generates code coverage report":
  var (output, exitCode) = gorgeEx("which lcov")
  if exitCode != 0:
    echo "  ************************** ⛔️ ERROR ⛔️ **************************"
    echo "  **   ERROR: lcov not found, it must be installed to run code   **"
    echo "  **   coverage locally                                          **"
    echo "  *****************************************************************"
    quit 1

  (output, exitCode) = gorgeEx("gcov --version")
  if output.contains("Apple LLVM"):
    echo "  ************************* ⚠️ WARNING ⚠️  *************************"
    echo "  **   WARNING: Using Apple's llvm-cov in place of gcov, which   **"
    echo "  **   emulates an old version of gcov (4.2.0) and therefore     **"
    echo "  **   coverage results will differ than those on CI (which      **"
    echo "  **   uses a much newer version of gcov).                       **"
    echo "  *****************************************************************"

  var nimSrcs = " "
  for f in walkDirRec("codex", {pcFile}):
    if f.endswith(".nim"):
      nimSrcs.add " " & f.absolutePath.quoteShell()

  echo "======== Running Tests ======== "
  test "coverage",
    srcDir = "tests/",
    params =
      " --nimcache:nimcache/coverage -d:release -d:codex_enable_proof_failures=true"
  exec("rm nimcache/coverage/*.c")
  rmDir("coverage")
  mkDir("coverage")
  echo " ======== Running LCOV ======== "
  exec(
    "lcov --capture --directory nimcache/coverage --output-file coverage/coverage.info"
  )
  exec(
    "lcov --extract coverage/coverage.info --output-file coverage/coverage.f.info " &
      nimSrcs
  )
  echo " ======== Generating HTML coverage report ======== "
  exec("genhtml coverage/coverage.f.info --output-directory coverage/report ")
  echo " ======== Coverage report Done ======== "

task showCoverage, "open coverage html":
  echo " ======== Opening HTML coverage report in browser... ======== "
  if findExe("open") != "":
    exec("open coverage/report/index.html")