# Copyright 2021 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.

load(
    "//pw_build:pigweed.bzl",
    "pw_cc_test",
    "pw_facade",
)

package(default_visibility = ["//visibility:public"])

licenses(["notice"])

pw_facade(
    name = "sha256",
    hdrs = [
        "public/pw_crypto/sha256.h",
    ],
    backend = ":sha256_backend",
    includes = ["public"],
    deps = [
        "//pw_assert",
        "//pw_bytes",
        "//pw_log",
        "//pw_status",
        "//pw_stream",
    ],
)

label_flag(
    name = "sha256_backend",
    build_setting_default = ":sha256_backend_multiplexer",
)

constraint_setting(
    name = "sha256_backend_constraint_setting",
)

constraint_value(
    name = "sha256_mbedtls_backend",
    constraint_setting = ":sha256_backend_constraint_setting",
)

alias(
    name = "sha256_backend_multiplexer",
    actual = select({
        ":sha256_mbedtls_backend": ":sha256_mbedtls",
        "//conditions:default": ":sha256_mbedtls",
    }),
)

cc_library(
    name = "sha256_mbedtls",
    srcs = ["sha256_mbedtls.cc"],
    hdrs = [
        "public/pw_crypto/sha256_mbedtls.h",
        "public_overrides/mbedtls/pw_crypto/sha256_backend.h",
    ],
    includes = ["public_overrides/mbedtls"],
    deps = [
        ":sha256_facade",
        "@mbedtls",
    ],
)

pw_cc_test(
    name = "sha256_test",
    srcs = ["sha256_test.cc"],
    deps = [
        ":sha256",
        "//pw_unit_test",
    ],
)

cc_library(
    name = "sha256_mock",
    srcs = ["sha256_mock.cc"],
    hdrs = [
        "public/pw_crypto/sha256_mock.h",
        "public_overrides/mock/pw_crypto/sha256_backend.h",
    ],
    includes = [
        "public",
        "public_overrides/mock",
    ],
    deps = [":sha256_facade"],
)

pw_cc_test(
    name = "sha256_mock_test",
    srcs = ["sha256_mock_test.cc"],
    deps = [
        ":sha256_mock",
        "//pw_unit_test",
    ],
)

pw_facade(
    name = "ecdsa",
    hdrs = [
        "public/pw_crypto/ecdsa.h",
    ],
    backend = ":ecdsa_backend",
    includes = ["public"],
    deps = [
        "//pw_bytes",
        "//pw_status",
    ],
)

label_flag(
    name = "ecdsa_backend",
    build_setting_default = ":ecdsa_backend_multiplexer",
)

constraint_setting(
    name = "ecdsa_backend_constraint_setting",
)

constraint_value(
    name = "ecdsa_mbedtls_backend",
    constraint_setting = ":ecdsa_backend_constraint_setting",
)

constraint_value(
    name = "ecdsa_uecc_backend",
    constraint_setting = ":ecdsa_backend_constraint_setting",
)

alias(
    name = "ecdsa_backend_multiplexer",
    actual = select({
        ":ecdsa_mbedtls_backend": ":ecdsa_mbedtls",
        ":ecdsa_uecc_backend": ":ecdsa_uecc",
        "//conditions:default": ":ecdsa_mbedtls",
    }),
)

cc_library(
    name = "ecdsa_mbedtls",
    srcs = ["ecdsa_mbedtls.cc"],
    deps = [
        ":ecdsa_facade",
        "//pw_function",
        "//pw_log",
        "@mbedtls",
    ],
)

cc_library(
    name = "ecdsa_uecc",
    srcs = [
        "ecdsa_uecc.cc",
    ],
    deps = [
        ":ecdsa_facade",
        "//pw_log",
        "@micro_ecc//:uecc",
    ],
)

pw_cc_test(
    name = "ecdsa_test",
    srcs = ["ecdsa_test.cc"],
    deps = [
        ":ecdsa",
        "//pw_unit_test",
    ],
)