genrule(
    name = "generate_tts_client_rb",
    srcs = [
        "tts-client.rb.tpl",
        "//experimental/users/acmcarther/llm/tts_grpc:tts_client_go",
    ],
    outs = ["tts-client.rb"],
    cmd = """
        # Identify the binary. It's the file that doesn't end in .tpl
        for f in $(locations //experimental/users/acmcarther/llm/tts_grpc:tts_client_go); do
            BINARY=$$f
            break
        done
        
        # Calculate SHA256
        if command -v sha256sum >/dev/null 2>&1; then
            HASH=$$(sha256sum $$BINARY | cut -d' ' -f1)
        else
            HASH=$$(shasum -a 256 $$BINARY | cut -d' ' -f1)
        fi
        
        # Substitute into template
        sed "s/{SHA256}/$$HASH/g" $(location tts-client.rb.tpl) > $@
    """,
    visibility = ["//visibility:public"],
)