load("@protobuf//bazel:cc_proto_library.bzl", "cc_proto_library")
load("@protobuf//bazel:proto_library.bzl", "proto_library")
load("@rules_cc//cc:defs.bzl", "cc_library")
load("@rules_python//python:py_binary.bzl", "py_binary")

# ─── Proto generation from .in.proto templates ─────────────────────────────

py_binary(
    name = "gen_proto",
    srcs = ["onnx/gen_proto.py"],
    main = "onnx/gen_proto.py",
    data = [
        "onnx/onnx.in.proto",
        "onnx/onnx-operators.in.proto",
        "onnx/onnx-data.in.proto",
    ],
)

genrule(
    name = "gen_onnx_ml_proto",
    outs = ["onnx/onnx-ml.proto"],
    cmd = "$(location :gen_proto) -p onnx -o $(@D) onnx -m",
    tools = [":gen_proto"],
)

genrule(
    name = "gen_onnx_operators_ml_proto",
    outs = ["onnx/onnx-operators-ml.proto"],
    cmd = "$(location :gen_proto) -p onnx -o $(@D) onnx-operators -m",
    tools = [":gen_proto"],
)

genrule(
    name = "gen_onnx_data_proto",
    outs = ["onnx/onnx-data.proto"],
    cmd = "$(location :gen_proto) -p onnx -o $(@D) onnx-data -m",
    tools = [":gen_proto"],
)

# ─── Protobuf definitions ──────────────────────────────────────────────────

proto_library(
    name = "onnx_proto",
    srcs = [
        ":onnx/onnx-ml.proto",
        ":onnx/onnx-operators-ml.proto",
        ":onnx/onnx-data.proto",
    ],
)

cc_proto_library(
    name = "onnx_proto_cc",
    visibility = ["//visibility:public"],
    deps = [":onnx_proto"],
)

cc_library(
    name = "onnx_proto_headers",
    hdrs = glob([
        "onnx/*_pb.h",
    ]),
    visibility = ["//visibility:public"],
    deps = [
        ":onnx_proto_cc",
    ],
)

# ─── ONNX C++ library ──────────────────────────────────────────────────────

cc_library(
    name = "onnx",
    srcs = glob(
        [
            "onnx/*.cc",
            "onnx/common/*.cc",
            "onnx/defs/*.cc",
            "onnx/defs/controlflow/*.cc",
            "onnx/defs/generator/*.cc",
            "onnx/defs/logical/*.cc",
            "onnx/defs/math/*.cc",
            "onnx/defs/nn/*.cc",
            "onnx/defs/object_detection/*.cc",
            "onnx/defs/optional/*.cc",
            "onnx/defs/quantization/*.cc",
            "onnx/defs/reduction/*.cc",
            "onnx/defs/rnn/*.cc",
            "onnx/defs/sequence/*.cc",
            "onnx/defs/tensor/*.cc",
            "onnx/defs/traditionalml/*.cc",
            "onnx/defs/training/*.cc",
            "onnx/shape_inference/*.cc",
            "onnx/inliner/*.cc",
            "onnx/version_converter/*.cc",
        ],
        exclude = [
            "onnx/*_test.cc",
            "onnx/**/*_test.cc",
            "onnx/cpp2py_export.cc",
            "onnx/py_utils.cc",
        ],
    ),
    hdrs = glob([
        "onnx/*.h",
        "onnx/common/*.h",
        "onnx/defs/**/*.h",
        "onnx/inliner/**/*.h",
        "onnx/shape_inference/**/*.h",
        "onnx/version_converter/**/*.h",
    ]),
    defines = [
        "ONNX_ML=1",
        "ONNX_NAMESPACE=onnx",
    ],
    copts = select({
        "@rules_cc//cc/compiler:msvc-cl": ["/std:c++20"],
        "@platforms//os:macos": [
            "-UDEBUG",  
            "--std=c++20",
        ],
        "//conditions:default": [
            "--std=c++20",
        ],
    }),
    includes = ["onnx"],
    visibility = ["//visibility:public"],
    deps = [
        ":onnx_proto_cc",
    ],
)