class PostgresqlAT10 < Formula
  desc "Object-relational database system"
  homepage "https://www.postgresql.org/"
  url "https://ftp.postgresql.org/pub/source/v10.16/postgresql-10.16.tar.bz2"
  sha256 "a35c718b1b6690e01c69626d467edb933784f8d1d6741e21fe6cce0738467bb3"
  license "PostgreSQL"
  revision 1

  livecheck do
    url "https://ftp.postgresql.org/pub/source/"
    regex(%r{href=["']?v?(10(?:\.\d+)+)/?["' >]}i)
  end

  bottle do
    sha256 arm64_big_sur: "2394c47aefba56aa92284f393dde0f15d1b7ff526dd3e95a6b66d02d1b7fd0a3"
    sha256 big_sur:       "569467a10dc757df4379d04c9cd04faa7c8e410a8b8235a2fc4e35e5dfe5df36"
    sha256 catalina:      "4514036606239ca6ee8f80f732883507450b0b39412c3d4c0fc0f00826650263"
    sha256 mojave:        "79b03ea9605950cbc9fd2495669d4745557f532dd3f98b8f3956f2b8786d1a15"
  end

  keg_only :versioned_formula

  # https://www.postgresql.org/support/versioning/
  deprecate! date: "2022-11-10", because: :unsupported

  depends_on "pkg-config" => :build
  depends_on "icu4c"
  depends_on "openssl@1.1"
  depends_on "readline"

  uses_from_macos "krb5"
  uses_from_macos "libxslt"
  uses_from_macos "openldap"
  uses_from_macos "perl"

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

  # Patch for `error: conflicting types for 'DefineCollation'`
  # when built against icu4c 68.2. Adapted from
  # https://svnweb.freebsd.org/ports/head/databases/postgresql10-server/files/patch-icu68?revision=553940&view=co
  patch do
    url "https://raw.githubusercontent.com/Homebrew/formula-patches/a28787a7f9b4a33cf5036379236e5a57a36282bc/postgresql%4010/icu4c68-2.patch"
    sha256 "8d625f31f176c256a9b8b5763e751091472d9f8a57e12bb7324c990777cf674c"
  end

  def install
    ENV.prepend "LDFLAGS", "-L#{Formula["openssl@1.1"].opt_lib} -L#{Formula["readline"].opt_lib}"
    ENV.prepend "CPPFLAGS", "-I#{Formula["openssl@1.1"].opt_include} -I#{Formula["readline"].opt_include}"

    args = %W[
      --disable-debug
      --prefix=#{prefix}
      --datadir=#{pkgshare}
      --libdir=#{lib}
      --sysconfdir=#{etc}
      --docdir=#{doc}
      --enable-thread-safety
      --with-bonjour
      --with-gssapi
      --with-icu
      --with-ldap
      --with-libxml
      --with-libxslt
      --with-openssl
      --with-pam
      --with-perl
      --with-tcl
      --with-uuid=e2fs
    ]

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

    system "./configure", *args
    system "make"

    #  pkglibdir=#{lib}/postgresql
    dirs = %W[datadir=#{pkgshare} libdir=#{lib} pkglibdir=#{lib}]

    # Temporarily disable building/installing the documentation.
    # Postgresql seems to "know" the build system has been altered and
    # tries to regenerate the documentation when using `install-world`.
    # This results in the build failing:
    #  `ERROR: `osx' is missing on your system.`
    # Attempting to fix that by adding a dependency on `open-sp` doesn't
    # work and the build errors out on generating the documentation, so
    # for now let's simply omit it so we can package Postgresql for Mojave.
    if DevelopmentTools.clang_build_version >= 1000
      system "make", "all"
      system "make", "-C", "contrib", "install", "all", *dirs
      system "make", "install", "all", *dirs
    else
      system "make", "install-world", *dirs
    end
  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}
      For more details, read:
        https://www.postgresql.org/docs/#{version.major}/app-initdb.html
    EOS
  end

  plist_options manual: "pg_ctl -D #{HOMEBREW_PREFIX}/var/postgresql@10 start"

  def plist
    <<~EOS
      <?xml version="1.0" encoding="UTF-8"?>
      <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
      <plist version="1.0">
      <dict>
        <key>KeepAlive</key>
        <true/>
        <key>Label</key>
        <string>#{plist_name}</string>
        <key>ProgramArguments</key>
        <array>
          <string>#{opt_bin}/postgres</string>
          <string>-D</string>
          <string>#{postgresql_datadir}</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
        <key>WorkingDirectory</key>
        <string>#{HOMEBREW_PREFIX}</string>
        <key>StandardOutPath</key>
        <string>#{postgresql_log_path}</string>
        <key>StandardErrorPath</key>
        <string>#{postgresql_log_path}</string>
      </dict>
      </plist>
    EOS
  end

  test do
    system "#{bin}/initdb", testpath/"test" unless ENV["HOMEBREW_GITHUB_ACTIONS"]
    assert_equal pkgshare.to_s, shell_output("#{bin}/pg_config --sharedir").chomp
    assert_equal lib.to_s, shell_output("#{bin}/pg_config --libdir").chomp
    assert_equal lib.to_s, shell_output("#{bin}/pg_config --pkglibdir").chomp
  end
end