# require "bundler/gem_tasks"

require 'rubygems'
require 'pty'
require 'fileutils'
require 'rake/testtask'

##
## TESTING
##

Rake::TestTask.new do |t|
  t.pattern = 'test/**/*_test.rb'
  t.libs << 'test'
  t.verbose = true
end
task default: :test

##
## GEM BUILDING AND INSTALLING
##

$spec_path = 'nickserver.gemspec'
$base_dir  = File.dirname(__FILE__)
$spec      = eval(File.read(File.join($base_dir, $spec_path)))
$gem_path  = File.join($base_dir, 'pkg', "#{$spec.name}-#{$spec.version}.gem")

def run(cmd)
  PTY.spawn(cmd) do |output, _input, _pid|
    begin
      output.each { |line| puts line }
    rescue Errno::EIO
    end
  end
rescue PTY::ChildExited
end

def built_gem_path
  Dir[File.join($base_dir, "#{$spec.name}-*.gem")]
    .max_by { |f| File.mtime(f) }
end

desc "Build #{$spec.name}-#{$spec.version}.gem into the pkg directory"
task 'build' do
  FileUtils.mkdir_p(File.join($base_dir, 'pkg'))
  FileUtils.rm($gem_path) if File.exist?($gem_path)
  run "gem build -V '#{$spec_path}'"
  file_name = File.basename(built_gem_path)
  FileUtils.mv(built_gem_path, 'pkg')
  puts "#{$spec.name} #{$spec.version} built to pkg/#{file_name}"
end

desc "Install #{$spec.name}-#{$spec.version}.gem into either system-wide or user gems"
task 'install' do
  if !File.exist?($gem_path)
    puts("Could not file #{$gem_path}. Try running 'rake build'")
  else
    options = '--verbose --conservative --no-rdoc --no-ri'
    if ENV['USER'] == 'root'
      run "gem install #{options} '#{$gem_path}'"
    else
      home_gem_path = Gem.path.grep(/home/).first
      puts "You are installing as an unprivileged user, which will result in the installation being placed in '#{home_gem_path}'."
      print "Do you want to continue installing to #{home_gem_path}? [y/N] "
      input = STDIN.readline
      if input =~ /[yY]/
        run "gem install #{$gem_path} #{options} --install-dir '#{home_gem_path}' "
      else
        puts 'bailing out.'
      end
    end
  end
end

desc "Uninstall #{$spec.name}-#{$spec.version}.gem from either system-wide or user gems"
task 'uninstall' do
  if ENV['USER'] == 'root'
    puts "Removing #{$spec.name}-#{$spec.version}.gem from system-wide gems"
    run "gem uninstall '#{$spec.name}' --version #{$spec.version} --verbose -x -I"
  else
    puts "Removing #{$spec.name}-#{$spec.version}.gem from user's gems"
    run "gem uninstall '#{$spec.name}' --version #{$spec.version} --verbose --user-install -x -I"
  end
end