# lib/fixup.rb
# Add fixups to be run during crew update here.
require 'etc'
require 'json'
require_relative 'color'
require_relative 'package'
require_relative 'require_gem'

require_gem('highline')

# All needed constants & variables should be defined here in case they
# have not yet been loaded or fixup is being run standalone.

CREW_VERBOSE ||= ARGV.intersect?(%w[-v --verbose]) unless defined?(CREW_VERBOSE)

CREW_PREFIX ||= '/usr/local'
CREW_LIB_PATH ||= File.join(CREW_PREFIX, 'lib/crew')

CREW_CONFIG_PATH ||= File.join(CREW_PREFIX, 'etc/crew')
CREW_META_PATH ||= File.join(CREW_CONFIG_PATH, 'meta')
# via git log --reverse --oneline lib/const.rb | head -n 1
@crew_const_git_commit ||= '72d807aac'
CREW_REPO   ||= 'https://github.com/chromebrew/chromebrew.git'
CREW_BRANCH ||= 'master'

# Restart crew update as quickly as possible if the git commit of
# const.rb loaded from crew before a git pull is different from the git
# commit of the potentially updated const.rb after a git pull.
current_crew_const_git_commit = `git -C #{CREW_LIB_PATH} log -n1 --oneline #{CREW_LIB_PATH}/lib/const.rb`.split.first
unless current_crew_const_git_commit == @crew_const_git_commit
  puts 'Restarting crew update since there is an updated crew version.'.lightcyan
  puts "CREW_REPO=#{CREW_REPO} CREW_BRANCH=#{CREW_BRANCH} crew update".orange if CREW_VERBOSE
  exec "CREW_REPO=#{CREW_REPO} CREW_BRANCH=#{CREW_BRANCH} crew update"
end

load "#{CREW_LIB_PATH}/lib/const.rb"
load "#{CREW_LIB_PATH}/lib/package.rb"
load "#{CREW_LIB_PATH}/lib/convenience_functions.rb"

KERN_ARCH ||= Etc.uname[:machine]
ARCH ||= %w[aarch64 armv8l].include?(KERN_ARCH) ? 'armv7l' : KERN_ARCH
LIBC_VERSION ||= Etc.confstr(Etc::CS_GNU_LIBC_VERSION).split.last
CREW_PACKAGES_PATH ||= File.join(CREW_LIB_PATH, 'packages')

# Removing files/directories.

# Remove deprecated directory.
FileUtils.rm_rf "#{HOME}/.cache/crewcache/manifest"

# Remove pagerenv tmp file in CREW_PACKAGES_PATH if it exists.
FileUtils.rm "#{CREW_PACKAGES_PATH}/pagerenv" if File.file?("#{CREW_PACKAGES_PATH}/pagerenv")
# Remove install.sh provided path file since we supersede it.

if File.exist?("#{CREW_PREFIX}/etc/env.d/00-path") && File.exist?("#{CREW_PREFIX}/etc/env.d/path")
  puts "Removing #{CREW_PREFIX}/etc/env.d/path installed by the Chromebrew installer.\n".orange
  FileUtils.rm "#{CREW_PREFIX}/etc/env.d/path"
end

# Updating git configuration.

Dir.chdir CREW_LIB_PATH do
  # Set new sparse-checkout paths for commands directory.
  system 'git sparse-checkout add commands'
  system 'git sparse-checkout reapply'

  # Set git timeout values for situations where GitHub is down.
  system 'git config --local http.lowSpeedLimit 1000' if `git config --local http.lowSpeedLimit`.empty?
  system 'git config --local http.lowSpeedTime 5' if `git config --local http.lowSpeedTime`.empty?
end

@fixup_json = JSON.load_file(File.join(CREW_CONFIG_PATH, 'device.json'))
def keep_keys(arr, keeper_keys)
  keepers = keeper_keys.to_set
  arr.map { |h| h.select { |k, _| keepers.include?(k) } }
end
# Use @installed_packages.include?(pkg_name) to determine if a package is
# installed.
@installed_packages = keep_keys(@fixup_json['installed_packages'], ['name']).flat_map(&:values).to_set

def save_json(json_object)
  crewlog 'Saving device.json...'
  begin
    File.write File.join(CREW_CONFIG_PATH, 'device.json.tmp'), JSON.pretty_generate(JSON.parse(json_object.to_json))
  rescue StandardError
    puts 'Error writing updated packages json file!'.lightred
    abort
  end
  # Copy over original if the write to the tmp file succeeds.
  FileUtils.cp("#{CREW_CONFIG_PATH}/device.json.tmp", File.join(CREW_CONFIG_PATH, 'device.json')) && FileUtils.rm("#{CREW_CONFIG_PATH}/device.json.tmp")
end

def refresh_crew_json
  if defined?(@device)
    @device = if @device['architecture'].nil?
                JSON.parse(@fixup_json.to_json, symbolize_names: true).transform_values! { |val| val.is_a?(String) ? val.to_sym : val }
              else
                JSON.parse(@fixup_json.to_json)
              end
  end
end

# Rename the binary_sha256 variable to sha256 in the device.json file
system(" sed -i 's/binary_sha256/sha256/g' #{File.join(CREW_CONFIG_PATH, 'device.json')}")

# Check for renamed and deprecated packages, and handle them.

pkg_update_arr = [
  { pkg_name: 'acli', pkg_rename: 'acquia_cli', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'agrind', pkg_rename: 'angle_grinder', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'apriconv', pkg_rename: 'apr_iconv', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'aprutil', pkg_rename: 'apr_util', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'arpscan', pkg_rename: 'arp_scan', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'asciidoc', pkg_rename: 'py3_asciidoc', pkg_deprecated: nil, comments: 'Renamed as a pip package.' },
  { pkg_name: 'aws', pkg_rename: 'aws_cli', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'aws_cli', pkg_rename: 'awscli', pkg_deprecated: nil, comments: 'Renamed to match pip package name.' },
  { pkg_name: 'btrfsprogs', pkg_rename: 'btrfs_progs', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'bz2', pkg_rename: 'bzip2', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'bz3', pkg_rename: 'bzip3', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'chrome', pkg_rename: 'google_chrome', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'codium', pkg_rename: 'vscodium', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'dstat', pkg_rename: 'py3_dool', pkg_deprecated: nil, comments: 'Following upstream rename.' },
  { pkg_name: 'epydoc', pkg_rename: nil, pkg_deprecated: true, comments: 'Abandoned upstream, only supports Python 2.' },
  { pkg_name: 'ffcall', pkg_rename: 'libffcall', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'git_prompt', pkg_rename: nil, pkg_deprecated: true, comments: 'Integrated into git package.' },
  { pkg_name: 'gnome_session', pkg_rename: nil, pkg_deprecated: true, comments: 'No longer compatible with any architecture, requires systemd.' },
  { pkg_name: 'gnome_settings_daemon', pkg_rename: nil, pkg_deprecated: true, comments: 'No longer compatible with any architecture, requires systemd.' },
  { pkg_name: 'gnome_shell', pkg_rename: nil, pkg_deprecated: true, comments: 'No longer compatible with any architecture, requires systemd.' },
  { pkg_name: 'gnome_tweaks', pkg_rename: nil, pkg_deprecated: true, comments: 'No longer compatible with any architecture, requires systemd in dep package gnome_settings_daemon.' },
  { pkg_name: 'ilmbase', pkg_rename: nil, pkg_deprecated: true, comments: 'Included in openexr.' },
  { pkg_name: 'imagemagick6', pkg_rename: nil, pkg_deprecated: true, comments: nil },
  { pkg_name: 'imagemagick', pkg_rename: nil, pkg_deprecated: true, comments: nil },
  { pkg_name: 'itstool', pkg_rename: 'py3_itstool', pkg_deprecated: false, comments: 'Renamed to indicate switch to pip buildsystem.' },
  { pkg_name: 'js91', pkg_rename: nil, pkg_deprecated: true, comments: 'Replaced by newer versions of js.' },
  { pkg_name: 'jsonc', pkg_rename: 'json_c', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'komodo', pkg_rename: nil, pkg_deprecated: true, comments: 'Abandoned upstream and no longer functional.' },
  { pkg_name: 'libaudiofile', pkg_rename: nil, pkg_deprecated: true, comments: 'Inactive upstream with applicable CVEs' },
  { pkg_name: 'libcurl', pkg_rename: 'curl', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'libgpgerror', pkg_rename: 'libgpg_error', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'libjpeg', pkg_rename: 'libjpeg_turbo', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'libmfx', pkg_rename: nil, pkg_deprecated: true, comments: 'No longer compatible with any architecture' },
  { pkg_name: 'linter', pkg_rename: nil, pkg_deprecated: true, comments: 'Replaced with py3_pre_commit.' },
  { pkg_name: 'mandb', pkg_rename: 'man_db', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'mercurial', pkg_rename: 'py3_mercurial', pkg_deprecated: nil, comments: 'Renamed to match other pip packages.' },
  { pkg_name: 'meson', pkg_rename: 'py3_meson', pkg_deprecated: nil, comments: 'Renamed to avoid conflict with buildsystems/meson.' },
  { pkg_name: 'mesonbuild', pkg_rename: 'py3_meson', pkg_deprecated: nil, comments: 'Renamed to indicate switch to pip buildsystem.' },
  { pkg_name: 'moonbuggy', pkg_rename: 'moon_buggy', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'nping', pkg_rename: nil, pkg_deprecated: true, comments: 'Removed to avoid conflict with nmap.' },
  { pkg_name: 'oci_cli', pkg_rename: 'py3_oci_cli', pkg_deprecated: nil, comments: 'Fix to match upstream name.' },
  { pkg_name: 'onepassword', pkg_rename: 'onepassword_cli', pkg_deprecated: nil, comments: 'Rename to distinguish between onepassword_gui.' },
  { pkg_name: 'percona_boost', pkg_rename: nil, pkg_deprecated: true, comments: 'Replaced by regular boost.' },
  { pkg_name: 'percona_server', pkg_rename: nil, pkg_deprecated: true, comments: 'Replaced by mysql.' },
  { pkg_name: 'pkgconfig', pkg_rename: 'pkg_config', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'postgres', pkg_rename: 'postgresql', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'proj4', pkg_rename: 'proj', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'py3_appdirs', pkg_rename: 'py3_platformdirs', pkg_deprecated: nil, comments: 'Replaced upstream.' },
  { pkg_name: 'py3_agate_dfb', pkg_rename: 'py3_agate_dbf', pkg_deprecated: nil, comments: 'Fix to match upstream name.' },
  { pkg_name: 'py3_dateutil', pkg_rename: 'py3_python_dateutil', pkg_deprecated: nil, comments: 'Fix to match upstream name.' },
  { pkg_name: 'py3_magic', pkg_rename: 'py3_python_magic', pkg_deprecated: nil, comments: 'Fix to match upstream name.' },
  { pkg_name: 'py3_pptx', pkg_rename: 'py3_python_pptx', pkg_deprecated: nil, comments: 'Fix to match upstream name.' },
  { pkg_name: 'pygobject', pkg_rename: 'py3_pygobject', pkg_deprecated: nil, comments: 'Renamed to use pip packaging.' },
  { pkg_name: 'q', pkg_rename: nil, pkg_deprecated: true, comments: 'No longer suitable for packaging.' },
  { pkg_name: 'qtbase', pkg_rename: 'qt5_base', pkg_deprecated: nil, comments: 'Qt packages renamed to qt5_*' },
  { pkg_name: 'qtcharts', pkg_rename: 'qt5_charts', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtchooser', pkg_rename: nil, pkg_deprecated: true, comments: "Doesn't work for newer Qt versions." },
  { pkg_name: 'qtdeclarative', pkg_rename: 'qt5_declarative', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtimageformats', pkg_rename: 'qt5_imageformats', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtlocation', pkg_rename: 'qt5_location', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtmultimedia', pkg_rename: 'qt5_multimedia', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtquickcontrols', pkg_rename: 'qt5_quickcontrols', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtscript', pkg_rename: 'qt5_script', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtserialport', pkg_rename: 'qt5_serialport', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtsvg', pkg_rename: 'qt5_svg', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qttools', pkg_rename: 'qt5_tools', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtwayland', pkg_rename: 'qt5_wayland', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtwebchannel', pkg_rename: 'qt5_webchannel', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtwebengine', pkg_rename: 'qt5_webengine', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtwebglplugin', pkg_rename: 'qt5_webglplugin', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtwebsockets', pkg_rename: 'qt5_websockets', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'qtx11extras', pkg_rename: 'qt5_x11extras', pkg_deprecated: nil, comments: nil },
  { pkg_name: 'tracker3', pkg_rename: 'tinysparql', pkg_deprecated: nil, comments: 'Renamed upstream.' },
  { pkg_name: 'tracker3_miners', pkg_rename: 'localsearch', pkg_deprecated: nil, comments: 'Renamed upstream.' },
  { pkg_name: 'util_macros', pkg_rename: 'xorg_macros', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'wget', pkg_rename: 'wget2', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' },
  { pkg_name: 'zlibpkg', pkg_rename: 'zlib', pkg_deprecated: nil, comments: 'Renamed to better match upstream.' }
].to_set

fixup_pkgs = pkg_update_arr.to_set { |h| h[:pkg_name] }
installed_fixup_packages = @installed_packages & fixup_pkgs

# Handle package renames.
renamed_packages = false
installed_fixup_packages.each do |fixup_pkg|
  working_pkg = pkg_update_arr.select { |i| i[:pkg_name] == fixup_pkg }
  pkg_name = working_pkg[0][:pkg_name]
  pkg_rename = working_pkg[0][:pkg_rename]
  next unless pkg_rename

  renamed_packages = true
  comments = working_pkg[0][:comments]
  renamed_packages = true
  puts "#{pkg_name.capitalize} has been renamed to #{pkg_rename.capitalize}. #{comments.nil? ? '' : "(#{comments})"}".lightpurple

  old_filelist = File.join(CREW_META_PATH, "#{pkg_name}.filelist")
  new_filelist = File.join(CREW_META_PATH, "#{pkg_rename}.filelist")
  old_directorylist = File.join(CREW_META_PATH, "#{pkg_name}.directorylist")
  new_directorylist = File.join(CREW_META_PATH, "#{pkg_rename}.directorylist")
  # Handle case of new package already installed.
  if @installed_packages.include?(pkg_rename)
    puts "Renamed #{pkg_rename.capitalize} is already installed. Deleting old package (#{pkg_rename.capitalize}) information...".lightblue
    FileUtils.rm_f old_filelist
    FileUtils.rm_f old_directorylist
    @fixup_json['installed_packages'].delete_if { |elem| elem[:name] == pkg_name }
    @installed_packages = keep_keys(@fixup_json['installed_packages'], ['name']).flat_map(&:values).to_set
    if @fixup_json['essential_deps'].include?(pkg_rename)
      crewlog("Running save_essential_deps because essential deps contained #{pkg_name}")
      save_essential_deps(@fixup_json)
      ## save_json(@fixup_json)
      ## @fixup_json = JSON.load_file(File.join(CREW_CONFIG_PATH, 'device.json'))
    end
    next
  end
  # Handle case of package needing to be replaced.
  if File.file?(new_filelist)
    puts "new filelist for #{pkg_rename.capitalize} already exists!"
    next
  end
  if File.file?(new_directorylist)
    puts "new directorylist for #{pkg_rename.capitalize} already exists!"
    next
  end
  # If new filelist or directorylist do not exist and new package is not
  # marked as installed in device.json then rename and edit json.
  FileUtils.mv old_filelist, new_filelist
  FileUtils.mv old_directorylist, new_directorylist
  @fixup_json['installed_packages'].find { |h| h['name'] == pkg_name }
  @fixup_json['installed_packages'].find { |h| h['name'] == pkg_name }['name'] = pkg_rename
  @fixup_json['compatible_packages'].find { |h| h['name'] == pkg_name }
  @fixup_json['compatible_packages'].find { |h| h['name'] == pkg_name }['name'] = pkg_rename
  ## save_json(@fixup_json)
  ## next unless @fixup_json['essential_deps'].include?(pkg_rename)
  ## save_essential_deps(@fixup_json)
  ## save_json(@fixup_json)
  ## @fixup_json = JSON.load_file(File.join(CREW_CONFIG_PATH, 'device.json'))
  ## save_json(@fixup_json)
end

if renamed_packages
  @installed_packages = keep_keys(@fixup_json['installed_packages'], ['name']).flat_map(&:values).to_set
  save_json(@fixup_json)
  refresh_crew_json
end

# Handle deprecated package deletions.
deprecate_packages = false
installed_fixup_packages.each do |fixup_pkg|
  working_pkg = pkg_update_arr.select { |i| i[:pkg_name] == fixup_pkg }
  delete_package = working_pkg[0][:pkg_deprecated]
  next unless delete_package

  deprecate_packages = true
  pkg_name = working_pkg[0][:pkg_name]
  comments = working_pkg[0][:comments]
  puts "#{pkg_name.capitalize} is deprecated and should be removed. #{comments.nil? ? '' : "(#{comments})"}".lightpurple
  if Package.agree_default_yes("\nWould you like to remove deprecated package #{pkg_name.capitalize}")
    # Create a minimal Package object and pass it to Command.remove
    pkg_object = Package
    pkg_object.instance_eval do
      self.name = pkg_name
      def self.preremove; end
      def self.postremove; end
    end
    Command.remove(pkg_object, CREW_VERBOSE)
  else
    puts "#{pkg_name.capitalize} not removed.".lightblue
  end
end
# Reload json after all external fixups are done, as there may have been external changes.
if deprecate_packages
  @fixup_json = JSON.load_file(File.join(CREW_CONFIG_PATH, 'device.json')) if deprecate_packages
  @installed_packages = keep_keys(@fixup_json['installed_packages'], ['name']).flat_map(&:values).to_set
  refresh_crew_json
end

# Handle broken system glibc affecting gcc_lib on newer x86_64 ChromeOS milestones.
if (ARCH == 'x86_64') && (Gem::Version.new(LIBC_VERSION.to_s) >= Gem::Version.new('2.36'))
  abort("patchelf is needed. Please run: 'crew update && crew install patchelf && crew update'") unless File.file?(File.join(CREW_PREFIX, 'bin/patchelf'))
  # Link the system libc.so.6 to also require our renamed libC.so.6
  # which provides the float128 functions strtof128, strfromf128,
  # and __strtof128_nan.
  # This creates tons of the following warnings when g++ is invoked with
  # g++ #{File.join(CREW_LIB_PREFIX, 'libC.so.6')}, but I'm not sure how
  # to get around that.
  # /usr/local/lib64/libC.so.6: linker input file unused because linking not done errors
  libc_patch_libraries = %w[libstdc++.so.6]
  libc_patch_libraries.delete_if { |lib| !File.file?(File.join(CREW_LIB_PREFIX, lib)) }
  libc_patch_libraries.delete_if { |lib| Kernel.system "patchelf --print-needed #{File.join(CREW_LIB_PREFIX, lib)} | grep -q libC.so.6" }

  return if libc_patch_libraries.empty?

  if File.file?(File.join(CREW_LIB_PREFIX, 'libC.so.6'))
    Dir.chdir(CREW_LIB_PREFIX) do
      libc_patch_libraries.each do |lib|
        Kernel.system "patchelf --add-needed libC.so.6 #{lib}" and Kernel.system "patchelf --remove-needed libc.so.6 #{lib}"
        puts "#{lib} patched for use with Chromebrew's glibc.".lightgreen
      end
    end
  end
end

# Reload @device with the appropriate symbolized or nonsymbolized json load before we exit fixup.
refresh_crew_json
