# Homebrew formula for pdftract
# This file is a template - variables are replaced during release
class Pdftract < Formula
  release = "{{RELEASE}}"
  version = release[/(\d+\.\d+\.\d+)/, 1]

  desc "PDF text extraction library with C FFI"
  homepage "https://github.com/jedarden/pdftract"
  url "https://github.com/jedarden/pdftract/releases/download/v#{version}/libpdftract-v#{version}-x86_64-unknown-linux-gnu.tar.gz"
  sha256 "{{LINUX_SHA256}}"

  depends_on "pkg-config"

  def install
    lib.install "lib/libpdftract.so"
    lib.install "lib/libpdftract.a"
    include.install "include/pdftract.h"
    lib.install "lib/pkgconfig/pdftract.pc"

    # Set the correct prefix in the pkg-config file
    inreplace lib/"pkgconfig/pdftract.pc", "@PREFIX@", prefix
  end

  test do
    (testpath/"test.c").write <<~EOS
      #include <pdftract.h>
      #include <stdio.h>
      #include <assert.h>

      int main(void) {
        const char* version = pdftract_version();
        assert(version != NULL);
        printf("pdftract version: %s\\n", version);

        uint32_t abi = pdftract_abi_version();
        printf("ABI version: 0x%08x\\n", abi);

        pdftract_free(NULL);  // Should not crash
        return 0;
      }
    EOS

    system ENV.cc, "test.c", "-I#{include}", "-L#{lib}", "-lpdftract", "-o", "test"
    system "./test"
  end
end