class Pmd < Formula
  desc "Source code analyzer for Java, JavaScript, and more"
  homepage "https://pmd.github.io"
  url "https://github.com/pmd/pmd/releases/download/pmd_releases/6.0.1/pmd-src-6.0.1.zip"
  sha256 "39f45da832ca3db010c13b78db80016f3f76674e6d99981e874e3298cd77ae12"

  bottle do
    cellar :any_skip_relocation
    sha256 "1acf1d3b9cda8f41c7baa166bf2ff0121d15da2b94facf2ed8b3af87001c30b6" => :high_sierra
    sha256 "797b80c5f9f682868f6b9b85fc08630c4f204b271608832c5be5ec1c7bad4683" => :sierra
    sha256 "88130d906c84e55c188881258e93af4a1f1ca4a57f943cba86fdbb5db1084644" => :el_capitan
  end

  depends_on :java => "1.8+"
  depends_on "maven" => :build

  def install
    java_user_home = buildpath/"java_user_home"
    ENV["_JAVA_OPTIONS"] = "-Duser.home=#{buildpath}/java_user_home"
    java_cache_repo = HOMEBREW_CACHE/"java_cache/.m2/repository"
    java_cache_repo.mkpath
    (java_user_home/".m2").install_symlink java_cache_repo

    (java_user_home/".m2/toolchains.xml").write <<~EOS
      <?xml version="1.0" encoding="UTF8"?>
      <toolchains>
        <toolchain>
          <type>jdk</type>
          <provides>
            <version>#{ENV["JAVA_HOME"][/((\d\.?)+)\.\d/, 1]}</version>
          </provides>
          <configuration>
            <jdkHome>#{ENV["JAVA_HOME"]}</jdkHome>
          </configuration>
        </toolchain>
        <toolchain>
          <type>jdk</type>
          <provides>
            <version>1.7</version>
          </provides>
          <configuration>
            <jdkHome>#{ENV["JAVA_HOME"]}</jdkHome>
          </configuration>
        </toolchain>
      </toolchains>
    EOS

    system "mvn", "clean", "package"

    doc.install "LICENSE", "NOTICE", "README.md"

    # The mvn package target produces a .zip with all the jars needed for PMD
    safe_system "unzip", buildpath/"pmd-dist/target/pmd-bin-#{version}.zip"
    libexec.install "pmd-bin-#{version}/bin", "pmd-bin-#{version}/lib"

    bin.install_symlink "#{libexec}/bin/run.sh" => "pmd"
    inreplace "#{libexec}/bin/run.sh", "${script_dir}/../lib", "#{libexec}/lib"
  end

  def caveats; <<~EOS
    Run with `pmd` (instead of `run.sh` as described in the documentation).
    EOS
  end

  test do
    (testpath/"java/testClass.java").write <<~EOS
      public class BrewTestClass {
        // dummy constant
        public String SOME_CONST = "foo";

        public boolean doTest () {
          return true;
        }
      }
    EOS

    system "#{bin}/pmd", "pmd", "-d", "#{testpath}/java", "-R",
      "rulesets/java/basic.xml", "-f", "textcolor", "-l", "java"
  end
end