load("@io_bazel_stardoc//stardoc:stardoc.bzl", "stardoc")
load("@bazel_skylib//rules:build_test.bzl", "build_test")

genrule(
    name = "flatten_header_vm",
    srcs = [
        "gen_header.sh",
        "docs.bzl",
    ],
    outs = ["flatten_header.vm"],
    cmd = "$(location gen_header.sh) $(location docs.bzl) $@",
    output_to_bindir = True,
)

stardoc(
    name = "docs",
    out = "docs.md",
    header_template = ":flatten_header_vm",
    input = "docs.bzl",
    deps = ["@rules_foreign_cc//:bzl_srcs"],
)

build_test(
    name = "docs_build_test",
    targets = [
        ":docs",
    ],
    visibility = ["//visibility:public"],
)

genrule(
    name = "generate_docs_src",
    srcs = [":docs"],
    outs = ["generate_docs.sh"],
    cmd = """cat << EOF > $@
#!/bin/bash
set -e
cat \\$${BUILD_WORKSPACE_DIRECTORY}/$(location //:docs) > \\$${BUILD_WORKSPACE_DIRECTORY}/README.md
""",
)

sh_binary(
    name = "generate_docs",
    srcs = [":generate_docs_src"],
    data = [":docs"],
)