#!/bin/sh
set -eu

cd "$(dirname "$0")/../.."

output_dir=target/mojo-spike
mkdir -p "$output_dir"

uv sync --frozen

version=$(uv run --frozen --no-sync mojo --version)
test "$version" = "Mojo 1.0.0 (ed45d567)"

uv run --frozen --no-sync mojo build --emit object \
    -o "$output_dir/abi.o" tools/mojo-spike/abi.mojo
uv run --frozen --no-sync mojo build --emit shared-lib \
    -o "$output_dir/libds4_mojo_probe.dylib" tools/mojo-spike/abi.mojo

otool -L "$output_dir/libds4_mojo_probe.dylib" \
    > "$output_dir/abi-closure.txt"
nm -u "$output_dir/libds4_mojo_probe.dylib" \
    > "$output_dir/abi-undefined.txt"

grep -F '@rpath/libKGENCompilerRTShared.dylib' \
    "$output_dir/abi-closure.txt" >/dev/null

if uv run --frozen --no-sync mojo build \
    -o "$output_dir/gpu-host" tools/mojo-spike/gpu_host.mojo \
    > "$output_dir/gpu-host-build.txt" 2>&1; then
    echo "unexpectedly found a GPU host runtime in the compiler-only environment" >&2
    exit 1
fi

grep -F "unable to locate module 'max'" \
    "$output_dir/gpu-host-build.txt" >/dev/null

printf '%s\n' \
    "Mojo 1.0 compiler and C ABI: verified" \
    "Open Metal GPU host path: unavailable" \
    "Shared-library runtime closure: @rpath/libKGENCompilerRTShared.dylib" \
    "Decision: STOP until the runtime closure is explicitly redistributable"