class Mariadb < Formula
  desc "Drop-in replacement for MySQL"
  homepage "https://mariadb.org/"
  url "https://downloads.mariadb.org/f/mariadb-10.3.7/source/mariadb-10.3.7.tar.gz"
  sha256 "e990afee6ae7cf9ac40154d0e150be359385dd6ef408ad80ea30df34e2c164cf"

  bottle do
    sha256 "87ef3b34b0c9a2c073c04e54112cb6dfc16d93e7481a6f28362a2b76cf8361ee" => :high_sierra
    sha256 "e941f209a0e233308a59fec74f5c82323aa66eda6eccd04ad9b0c5ecc790a9be" => :sierra
    sha256 "75158b86e0f73abdbc9aacd661de4671db56ebb2530410fc7fa6d37ccd6e1b9d" => :el_capitan
  end

  option "with-test", "Keep test when installing"
  option "with-bench", "Keep benchmark app when installing"
  option "with-embedded", "Build the embedded server"
  option "with-libedit", "Compile with editline wrapper instead of readline"
  option "with-archive-storage-engine", "Compile with the ARCHIVE storage engine enabled"
  option "with-blackhole-storage-engine", "Compile with the BLACKHOLE storage engine enabled"
  option "with-local-infile", "Build with local infile loading support"

  deprecated_option "enable-local-infile" => "with-local-infile"
  deprecated_option "with-tests" => "with-test"

  depends_on "cmake" => :build
  depends_on "openssl"

  conflicts_with "mysql", "mysql-cluster", "percona-server",
    :because => "mariadb, mysql, and percona install the same binaries."
  conflicts_with "mysql-connector-c",
    :because => "both install MySQL client libraries"
  conflicts_with "mytop", :because => "both install `mytop` binaries"
  conflicts_with "mariadb-connector-c",
    :because => "both install plugins"

  def install
    # Set basedir and ldata so that mysql_install_db can find the server
    # without needing an explicit path to be set. This can still
    # be overridden by calling --basedir= when calling.
    inreplace "scripts/mysql_install_db.sh" do |s|
      s.change_make_var! "basedir", "\"#{prefix}\""
      s.change_make_var! "ldata", "\"#{var}/mysql\""
    end

    # -DINSTALL_* are relative to prefix
    args = %W[
      -DMYSQL_DATADIR=#{var}/mysql
      -DINSTALL_INCLUDEDIR=include/mysql
      -DINSTALL_MANDIR=share/man
      -DINSTALL_DOCDIR=share/doc/#{name}
      -DINSTALL_INFODIR=share/info
      -DINSTALL_MYSQLSHAREDIR=share/mysql
      -DWITH_PCRE=bundled
      -DWITH_SSL=yes
      -DDEFAULT_CHARSET=utf8
      -DDEFAULT_COLLATION=utf8_general_ci
      -DINSTALL_SYSCONFDIR=#{etc}
      -DCOMPILATION_COMMENT=Homebrew
    ]

    # disable TokuDB, which is currently not supported on macOS
    args << "-DPLUGIN_TOKUDB=NO"

    args << "-DWITH_UNIT_TESTS=OFF" if build.without? "test"

    # Build the embedded server
    args << "-DWITH_EMBEDDED_SERVER=ON" if build.with? "embedded"

    # Compile with readline unless libedit is explicitly chosen
    args << "-DWITH_READLINE=yes" if build.without? "libedit"

    # Compile with ARCHIVE engine enabled if chosen
    args << "-DPLUGIN_ARCHIVE=YES" if build.with? "archive-storage-engine"

    # Compile with BLACKHOLE engine enabled if chosen
    args << "-DPLUGIN_BLACKHOLE=YES" if build.with? "blackhole-storage-engine"

    # Build with local infile loading support
    args << "-DENABLED_LOCAL_INFILE=1" if build.with? "local-infile"

    system "cmake", ".", *std_cmake_args, *args
    system "make"
    system "make", "install"

    # Fix my.cnf to point to #{etc} instead of /etc
    (etc/"my.cnf.d").mkpath
    inreplace "#{etc}/my.cnf", "!includedir /etc/my.cnf.d",
                               "!includedir #{etc}/my.cnf.d"
    touch etc/"my.cnf.d/.homebrew_dont_prune_me"

    # Don't create databases inside of the prefix!
    # See: https://github.com/Homebrew/homebrew/issues/4975
    rm_rf prefix/"data"

    (prefix/"mysql-test").rmtree if build.without? "test" # save 121MB!
    (prefix/"sql-bench").rmtree if build.without? "bench"

    # Link the setup script into bin
    bin.install_symlink prefix/"scripts/mysql_install_db"

    # Fix up the control script and link into bin
    inreplace "#{prefix}/support-files/mysql.server", /^(PATH=".*)(")/, "\\1:#{HOMEBREW_PREFIX}/bin\\2"

    bin.install_symlink prefix/"support-files/mysql.server"

    # Move sourced non-executable out of bin into libexec
    libexec.install "#{bin}/wsrep_sst_common"
    # Fix up references to wsrep_sst_common
    %w[
      wsrep_sst_mysqldump
      wsrep_sst_rsync
      wsrep_sst_xtrabackup
      wsrep_sst_xtrabackup-v2
    ].each do |f|
      inreplace "#{bin}/#{f}", "$(dirname $0)/wsrep_sst_common",
                               "#{libexec}/wsrep_sst_common"
    end

    # Install my.cnf that binds to 127.0.0.1 by default
    (buildpath/"my.cnf").write <<~EOS
      # Default Homebrew MySQL server config
      [mysqld]
      # Only allow connections from localhost
      bind-address = 127.0.0.1
    EOS
    etc.install "my.cnf"
  end

  def post_install
    # Make sure the var/mysql directory exists
    (var/"mysql").mkpath
    unless File.exist? "#{var}/mysql/mysql/user.frm"
      ENV["TMPDIR"] = nil
      system "#{bin}/mysql_install_db", "--verbose", "--user=#{ENV["USER"]}",
        "--basedir=#{prefix}", "--datadir=#{var}/mysql", "--tmpdir=/tmp"
    end
  end

  def caveats; <<~EOS
    A "/etc/my.cnf" from another install may interfere with a Homebrew-built
    server starting up correctly.

    MySQL is configured to only allow connections from localhost by default

    To connect:
        mysql -uroot
    EOS
  end

  plist_options :manual => "mysql.server 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}/mysqld_safe</string>
        <string>--datadir=#{var}/mysql</string>
      </array>
      <key>RunAtLoad</key>
      <true/>
      <key>WorkingDirectory</key>
      <string>#{var}</string>
    </dict>
    </plist>
    EOS
  end

  test do
    if build.with? "test"
      (prefix/"mysql-test").cd do
        system "./mysql-test-run.pl", "status"
      end
    else
      system bin/"mysqld", "--version"
    end
  end
end
