class PostgresqlAT12 < Formula
  desc "Object-relational database system"
  homepage "https://www.postgresql.org/"
  url "https://ftp.postgresql.org/pub/source/v12.22/postgresql-12.22.tar.bz2"
  sha256 "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"
  license "PostgreSQL"
  revision 2

  bottle do
    sha256 arm64_tahoe:   "7eebc44b6f6fdd3655951ab6b671c3fcafd134dba397657e444fdf8deeca66bf"
    sha256 arm64_sequoia: "a298c1ffaca071ca5c61293b253109bd6f9145e3992c8fdb1814b8efeae18a65"
    sha256 arm64_sonoma:  "c01dcad85dd0159afdb19a31bc0ef7311a17743290151fea742763e59fa418f5"
    sha256 sonoma:        "127c10f4b874c14e5ebdec658b592e8e4cca59d206c474d518a9ee055cc11b3e"
    sha256 arm64_linux:   "e111736fed680690c6f4a8702a946588045db4c52ac0c284d3b238a03efca183"
    sha256 x86_64_linux:  "43dee3defb61a85fa962fa71f6a3d09ebf49128ed46a8575a828141b817dff19"
  end

  keg_only :versioned_formula

  # https://www.postgresql.org/support/versioning/
  deprecate! date: "2024-11-14", because: :unsupported
  disable! date: "2025-11-14", because: :unsupported

  depends_on "pkgconf" => :build
  depends_on "icu4c@77"

  # GSSAPI provided by Kerberos.framework crashes when forked.
  # See https://github.com/Homebrew/homebrew-core/issues/47494.
  depends_on "krb5"

  depends_on "openssl@3"
  depends_on "readline"

  uses_from_macos "libxml2"
  uses_from_macos "libxslt"
  uses_from_macos "openldap"
  uses_from_macos "perl"
  uses_from_macos "zlib"

  on_linux do
    depends_on "linux-pam"
    depends_on "util-linux"
  end

  def install
    ENV.runtime_cpu_detection
    ENV.delete "PKG_CONFIG_LIBDIR" if OS.mac? && MacOS.version == :catalina
    ENV.prepend "LDFLAGS", "-L#{Formula["openssl@3"].opt_lib} -L#{Formula["readline"].opt_lib}"
    ENV.prepend "CPPFLAGS", "-I#{Formula["openssl@3"].opt_include} -I#{Formula["readline"].opt_include}"

    args = %W[
      --disable-debug
      --prefix=#{prefix}
      --datadir=#{opt_pkgshare}
      --libdir=#{opt_lib}
      --includedir=#{opt_include}
      --sysconfdir=#{etc}
      --docdir=#{doc}
      --enable-thread-safety
      --with-gssapi
      --with-icu
      --with-ldap
      --with-libxml
      --with-libxslt
      --with-openssl
      --with-pam
      --with-perl
      --with-uuid=e2fs
    ]
    args += %w[--with-bonjour --with-tcl] if OS.mac?

    # PostgreSQL by default uses xcodebuild internally to determine this,
    # which does not work on CLT-only installs.
    args << "PG_SYSROOT=#{MacOS.sdk_path}" if OS.mac?

    system "./configure", *args

    # Work around busted path magic in Makefile.global.in. This can't be specified
    # in ./configure, but needs to be set here otherwise install prefixes containing
    # the string "postgres" will get an incorrect pkglibdir.
    # See https://github.com/Homebrew/homebrew-core/issues/62930#issuecomment-709411789
    system "make", "pkglibdir=#{opt_lib}/postgresql",
                   "pkgincludedir=#{opt_include}/postgresql",
                   "includedir_server=#{opt_include}/postgresql/server"
    system "make", "install-world", "datadir=#{pkgshare}",
                                    "libdir=#{lib}",
                                    "pkglibdir=#{lib}/postgresql",
                                    "includedir=#{include}",
                                    "pkgincludedir=#{include}/postgresql",
                                    "includedir_server=#{include}/postgresql/server",
                                    "includedir_internal=#{include}/postgresql/internal"
    return unless OS.linux?

    inreplace lib/"postgresql/pgxs/src/Makefile.global",
              "LD = #{Superenv.shims_path}/ld",
              "LD = #{HOMEBREW_PREFIX}/bin/ld"
  end

  def post_install
    (var/"log").mkpath
    postgresql_datadir.mkpath

    # Don't initialize database, it clashes when testing other PostgreSQL versions.
    return if ENV["HOMEBREW_GITHUB_ACTIONS"]

    system bin/"initdb", "--locale=C", "-E", "UTF-8", postgresql_datadir unless pg_version_exists?
  end

  def postgresql_datadir
    var/name
  end

  def postgresql_log_path
    var/"log/#{name}.log"
  end

  def pg_version_exists?
    (postgresql_datadir/"PG_VERSION").exist?
  end

  def caveats
    <<~EOS
      This formula has created a default database cluster with:
        initdb --locale=C -E UTF-8 #{postgresql_datadir}
    EOS
  end

  service do
    run [opt_bin/"postgres", "-D", f.postgresql_datadir]
    keep_alive true
    log_path f.postgresql_log_path
    error_log_path f.postgresql_log_path
    working_dir HOMEBREW_PREFIX
  end

  test do
    system bin/"initdb", testpath/"test" unless ENV["HOMEBREW_GITHUB_ACTIONS"]
    assert_equal opt_pkgshare.to_s, shell_output("#{bin}/pg_config --sharedir").chomp
    assert_equal opt_lib.to_s, shell_output("#{bin}/pg_config --libdir").chomp
    assert_equal (opt_lib/"postgresql").to_s, shell_output("#{bin}/pg_config --pkglibdir").chomp
    assert_equal (opt_include/"postgresql").to_s, shell_output("#{bin}/pg_config --pkgincludedir").chomp
    assert_equal (opt_include/"postgresql/server").to_s, shell_output("#{bin}/pg_config --includedir-server").chomp
  end
end