# Copyright 2023 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",
)

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

licenses(["notice"])

cc_library(
    name = "chunk",
    srcs = ["chunk.cc"],
    hdrs = ["public/pw_multibuf/chunk.h"],
    includes = ["public"],
    deps = [
        "//pw_assert",
        "//pw_bytes",
        "//pw_preprocessor",
        "//pw_span",
        "//pw_sync:interrupt_spin_lock",
    ],
)

cc_library(
    name = "header_chunk_region_tracker",
    hdrs = ["public/pw_multibuf/header_chunk_region_tracker.h"],
    includes = ["public"],
    deps = [
        ":chunk",
        "//pw_allocator:allocator",
        "//pw_bytes",
    ],
)

cc_library(
    name = "single_chunk_region_tracker",
    hdrs = ["public/pw_multibuf/single_chunk_region_tracker.h"],
    includes = ["public"],
    deps = [
        ":chunk",
        "//pw_assert",
        "//pw_bytes",
    ],
)

pw_cc_test(
    name = "chunk_test",
    srcs = ["chunk_test.cc"],
    deps = [
        ":chunk",
        ":header_chunk_region_tracker",
        "//pw_allocator:testing",
        "//pw_unit_test",
    ],
)

pw_cc_test(
    name = "header_chunk_region_tracker_test",
    srcs = ["header_chunk_region_tracker_test.cc"],
    deps = [
        ":chunk",
        ":header_chunk_region_tracker",
        "//pw_allocator:testing",
        "//pw_status",
    ],
)

pw_cc_test(
    name = "single_chunk_region_tracker_test",
    srcs = ["single_chunk_region_tracker_test.cc"],
    # TODO: b/260624583 - Fix this for rp2040
    target_compatible_with = select({
        "//pw_build/constraints/chipset:rp2040": ["@platforms//:incompatible"],
        "//conditions:default": [],
    }),
    deps = [
        ":chunk",
        ":single_chunk_region_tracker",
    ],
)

cc_library(
    name = "pw_multibuf",
    srcs = ["multibuf.cc"],
    hdrs = ["public/pw_multibuf/multibuf.h"],
    deps = [
        ":chunk",
        "//pw_preprocessor",
        "//pw_status",
    ],
)

pw_cc_test(
    name = "multibuf_test",
    srcs = ["multibuf_test.cc"],
    deps = [
        ":internal_test_utils",
        ":pw_multibuf",
        "//pw_bytes",
        "//pw_unit_test",
    ],
)

cc_library(
    name = "allocator",
    srcs = ["allocator.cc"],
    hdrs = ["public/pw_multibuf/allocator.h"],
    deps = [
        ":pw_multibuf",
        "//pw_async2:dispatcher",
        "//pw_async2:poll",
        "//pw_result",
    ],
)

pw_cc_test(
    name = "allocator_test",
    srcs = ["allocator_test.cc"],
    deps = [
        ":allocator",
        "//pw_async2:dispatcher",
        "//pw_async2:poll",
        "//pw_unit_test",
    ],
)

cc_library(
    name = "simple_allocator",
    srcs = ["simple_allocator.cc"],
    hdrs = ["public/pw_multibuf/simple_allocator.h"],
    deps = [
        ":allocator",
        ":pw_multibuf",
        "//pw_allocator:allocator",
        "//pw_containers:intrusive_list",
    ],
)

pw_cc_test(
    name = "simple_allocator_test",
    srcs = ["simple_allocator_test.cc"],
    deps = [
        ":simple_allocator",
        "//pw_allocator:null_allocator",
        "//pw_allocator:testing",
        "//pw_async2:dispatcher",
        "//pw_async2:poll",
        "//pw_unit_test",
    ],
)

cc_library(
    name = "stream",
    srcs = ["stream.cc"],
    hdrs = ["public/pw_multibuf/stream.h"],
    deps = [
        ":pw_multibuf",
        "//pw_status",
        "//pw_stream",
    ],
)

pw_cc_test(
    name = "stream_test",
    srcs = ["stream_test.cc"],
    deps = [
        ":internal_test_utils",
        ":pw_multibuf",
        ":stream",
        "//pw_unit_test",
    ],
)

cc_library(
    name = "testing",
    testonly = True,
    hdrs = ["public/pw_multibuf/simple_allocator_for_test.h"],
    includes = ["public"],
    deps = [
        ":simple_allocator",
        "//pw_allocator:testing",
        "//pw_assert",
    ],
)

cc_library(
    name = "internal_test_utils",
    testonly = True,
    hdrs = ["pw_multibuf_private/test_utils.h"],
    includes = ["pw_multibuf_private"],
    visibility = ["//visibility:private"],
    deps = [
        ":header_chunk_region_tracker",
        ":pw_multibuf",
        "//pw_allocator:testing",
        "//pw_assert",
        "//pw_bytes",
        "//pw_status",
    ],
)