load(
    "@nix_config//:config.bzl",
    "CLANG",
    "CLANG_LIB",
    "CLANG_LIB_VERSION",
    "LIBCLANG_RT_WASM32",
    "LLVM",
)
load("@rules_cc//cc:defs.bzl", "cc_toolchain")
load("//bazel/toolchain_rules:llvm_cc_toolchain_config.bzl", "llvm_cc_toolchain_config")

llvm_cc_toolchain_config(
    name = "cc_toolchain_config",
    archive_flags = [],
    builtin_executable_objects = [],
    builtin_include_directories = [
        "{}/lib/clang/{}/include".format(CLANG_LIB, CLANG_LIB_VERSION),
    ],
    builtin_libraries = [],
    builtin_library_directories = [],
    clang = CLANG,
    compile_flags = [
        "-fno-exceptions",
        "-Werror",
        "-Wall",
        "-Wthread-safety",
        "-Wself-assign",
    ],
    dbg_compile_flags = [],
    dbg_link_flags = [],
    fastbuild_compile_flags = [],
    fastbuild_link_flags = [],
    link_flags = [
        "--fatal-warnings",
        # `wasm-ld` doesn't respect the verbatim `-l:<name>` syntax.
        "{}/lib/wasi/libclang_rt.builtins-wasm32.a".format(LIBCLANG_RT_WASM32),
    ],
    llvm = LLVM,
    opt_compile_flags = [],
    opt_link_flags = [
        "--gc-sections",
    ],
    supports_start_end_lib = False,
    tags = ["manual"],
    target = "wasm32-unknown-unknown",
)

cc_toolchain(
    name = "cc_toolchain",
    all_files = "@nix_config//:config.bzl",
    ar_files = "@nix_config//:config.bzl",
    as_files = "@nix_config//:config.bzl",
    compiler_files = "@nix_config//:config.bzl",
    coverage_files = "@nix_config//:config.bzl",
    dwp_files = "@nix_config//:config.bzl",
    linker_files = "@nix_config//:config.bzl",
    objcopy_files = "@nix_config//:config.bzl",
    strip_files = "@nix_config//:config.bzl",
    tags = ["manual"],
    toolchain_config = "cc_toolchain_config",
)

toolchain(
    name = "toolchain",
    exec_compatible_with = [
        "@platforms//cpu:x86_64",
        "@platforms//os:nixos",
    ],
    target_compatible_with = [
        "@platforms//cpu:wasm32",
        "@platforms//os:none",
    ],
    toolchain = ":cc_toolchain",
    toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
)