class Yaz < Formula
  desc "Toolkit for Z39.50/SRW/SRU clients/servers"
  homepage "https://www.indexdata.com/yaz"
  url "http://ftp.indexdata.dk/pub/yaz/yaz-5.27.2.tar.gz"
  sha256 "09fdebc78ef169194f3d275ede5ef39087484c1395bf518484051bba81cb154e"

  bottle do
    cellar :any
    sha256 "dec79484e11ffb10ac51d1d902ac9860036af7bea924a0c3022b40d9f6df8c2f" => :catalina
    sha256 "765a114f35202bf28fd7a05011d7c8e388929a2c10a6c03f4b5a1348684296ea" => :mojave
    sha256 "047af6554ea6d94e46ca01d8c146a0ea8414fc5e2c0956e90e7a33cce8a133dc" => :high_sierra
  end

  head do
    url "https://github.com/indexdata/yaz.git"
    depends_on "autoconf" => :build
    depends_on "automake" => :build
    depends_on "libtool" => :build
  end

  depends_on "pkg-config" => :build
  depends_on "icu4c"
  uses_from_macos "libxml2"

  def install
    system "./buildconf.sh" if build.head?
    system "./configure", "--disable-dependency-tracking",
                          "--prefix=#{prefix}",
                          "--with-xml2"
    system "make", "install"
  end

  test do
    # This test converts between MARC8, an obscure mostly-obsolete library
    # text encoding supported by yaz-iconv, and UTF8.
    marc8file = testpath/"marc8.txt"
    marc8file.write "$1!0-!L,i$3i$si$Ki$Ai$O!+=(B"
    result = shell_output("#{bin}/yaz-iconv -f marc8 -t utf8 #{marc8file}")
    result.force_encoding(Encoding::UTF_8) if result.respond_to?(:force_encoding)
    assert_equal "世界こんにちは！", result

    # Test ICU support by running yaz-icu with the example icu_chain
    # from its man page.
    configfile = testpath/"icu-chain.xml"
    configfile.write <<~EOS
      <?xml version="1.0" encoding="UTF-8"?>
      <icu_chain locale="en">
        <transform rule="[:Control:] Any-Remove"/>
        <tokenize rule="w"/>
        <transform rule="[[:WhiteSpace:][:Punctuation:]] Remove"/>
        <transliterate rule="xy > z;"/>
        <display/>
        <casemap rule="l"/>
      </icu_chain>
    EOS

    inputfile = testpath/"icu-test.txt"
    inputfile.write "yaz-ICU	xy!"

    expectedresult = <<~EOS
      1 1 'yaz' 'yaz'
      2 1 '' ''
      3 1 'icuz' 'ICUz'
      4 1 '' ''
    EOS

    result = shell_output("#{bin}/yaz-icu -c #{configfile} #{inputfile}")
    assert_equal expectedresult, result
  end
end