from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals
rocksdb_target_header = """REPO_PATH = "internal_repo_rocksdb/repo/"
BUCK_BINS = "buck-out/gen/" + REPO_PATH
TEST_RUNNER = REPO_PATH + "buckifier/rocks_test_runner.sh"
rocksdb_compiler_flags = [
  "-msse",
  "-msse4.2",
  "-fno-builtin-memcmp",
  "-DROCKSDB_PLATFORM_POSIX",
  "-DROCKSDB_LIB_IO_POSIX",
  "-DROCKSDB_FALLOCATE_PRESENT",
  "-DROCKSDB_MALLOC_USABLE_SIZE",
  "-DOS_LINUX",
  # Flags to enable libs we include
  "-DSNAPPY",
  "-DZLIB",
  "-DBZIP2",
  "-DLZ4",
  "-DZSTD",
  "-DGFLAGS=gflags",
  "-DNUMA",
  "-DTBB",
  # Needed to compile in fbcode
  "-Wno-expansion-to-defined",
]

rocksdb_external_deps = [
  ('bzip2', None, 'bz2'),
  ('snappy', None, "snappy"),
  ('zlib', None, 'z'),
  ('gflags', None, 'gflags'),
  ('lz4', None, 'lz4'),
  ('zstd', None),
  ('tbb', None),
  ("numa", "2.0.8", "numa"),
  ("googletest", None, "gtest"),
]

rocksdb_preprocessor_flags = [
  # Directories with files for #include
  "-I" + REPO_PATH + "include/",
  "-I" + REPO_PATH,
]
"""


library_template = """
cpp_library(
    name = "%s",
    headers = %s,
    srcs = [%s],
    deps = [%s],
    preprocessor_flags = rocksdb_preprocessor_flags,
    compiler_flags = rocksdb_compiler_flags,
    external_deps = rocksdb_external_deps,
)
"""

binary_template = """
cpp_binary(
  name = "%s",
  srcs = [%s],
  deps = [%s],
  preprocessor_flags = rocksdb_preprocessor_flags,
  compiler_flags = rocksdb_compiler_flags,
  external_deps = rocksdb_external_deps,
)
"""

unittests_template = """
# [test_name, test_src, test_type]
ROCKS_TESTS = %s


# Generate a test rule for each entry in ROCKS_TESTS
for test_cfg in ROCKS_TESTS:
    test_name = test_cfg[0]
    test_cc = test_cfg[1]
    ttype = "gtest" if test_cfg[2] == "parallel" else "simple"
    test_bin = test_name + "_bin"

    cpp_binary (
      name = test_bin,
      srcs = [test_cc],
      deps = [":rocksdb_test_lib"],
      preprocessor_flags = rocksdb_preprocessor_flags,
      compiler_flags = rocksdb_compiler_flags,
      external_deps = rocksdb_external_deps,
    )

    custom_unittest(
      name = test_name,
      type = ttype,
      deps = [":" + test_bin],
      command = [TEST_RUNNER, BUCK_BINS + test_bin]
    )
"""