import os

original_java_library = java_library
original_android_library = android_library

def _get_infer_bin():
  return read_config("infer", "infer_bin")

def _get_project_root():
  return read_config("infer", "project_root")

def _get_infer_deps():
  infer_out = read_config("infer", "infer_out")
  infer_deps = "{}/infer-deps.txt".format(infer_out)
  return infer_deps

def _infer_capture_genrule(
    name,
    srcs
  ):
	
  args = [
      "--jobs",
      "1",
      "--genrule-mode",
      "--quiet",
      "--no-progress-bar",
      "--results-dir",
      "$OUT",
      "--sourcepath",
      "$SRCDIR",
      "--project-root",
      _get_project_root(),
      "--classpath",
      "$(classpath :{})".format(name),
      "--generated-classes",
      "$(location :{})".format(name),
      "capture",
  ]
  
  args_file = os.path.join("$TMP", "args.txt")
  subcommands = [
    "echo {} >> {}".format(arg, args_file)
    for arg in args
  ] + [
    " ".join([_get_infer_bin(), "@" + args_file])
  ]
	
  genrule(
      name = name + "_infer",
      srcs = srcs,
      cmd = " && ".join(subcommands),
      out = "infer_out",
      labels = ["infer_genrule"],
  )  


def _make_infer_capture_genrule(name, kwargs):
  java_sources = [
    f
    for f in kwargs.get("srcs", [])
    if f.endswith(".java")
  ]

  if java_sources != []:
    _infer_capture_genrule(name, java_sources)
    kwargs["labels"] = kwargs.get("labels", []) + ["infer_enabled"]
  
  return kwargs


def java_library(name, **kwargs):
  new_kwargs = _make_infer_capture_genrule(name, kwargs)

  original_java_library(
    name=name,
    **new_kwargs
  )

def android_library(name, **kwargs):
  new_kwargs = _make_infer_capture_genrule(name, kwargs)

  original_android_library(
    name=name,
    **new_kwargs
  )