#!/usr/bin/env ruby

require "optparse"
require_relative "./helpers/all"

usage = <<-EOH
Usage:
  #{$0} [-v|--verbose] [--replace grammar] url

Examples:
  #{$0} https://github.com/Alhadis/language-roff
  #{$0} --replace sublime-apl https://github.com/Alhadis/language-apl
EOH

$compile = false
$replace = nil

OptionParser.new do |opts|
  opts.banner = usage
  opts.on("-q", "--quiet", "Do not print output unless there's a failure") do
    $quiet = true
  end
  opts.on("-rSUBMODULE", "--replace=SUBMODDULE", "Replace an existing grammar submodule.") do |name|
    $replace = name
  end
  opts.on("-C", "--compile", "Compile grammar using the new grammar-compiler.") do
    $compile = true
  end
end.parse!


$url = ARGV[0]

# No URL? Print a usage message and bail.
unless $url
  warn usage
  exit 1
end

# Exit early if docker isn't installed or running.
log "Checking Docker is installed and running"
command('docker', 'ps')

repo_new = GrammarSource.by_url $url

Dir.chdir(ROOT)

if $replace
  repo_old = GrammarSource.by_path $replace
  log "Deregistering: #{repo_old.path}"
  $removed = repo_old
  command('git', 'submodule', 'deinit', repo_old.path)
  command('git', 'rm', '-rf', repo_old.path)
  command('script/grammar-compiler', 'update', '-f') if $compile
end

log "Registering new submodule: #{repo_new.path}"
command('git', 'submodule', 'add', '-f', https, repo_new)
command('script/grammar-compiler', 'add', repo_new) if $compile

log "Confirming license"
if repo_old
  command('script/licensed')
else
  repo_new = File.absolute_path(repo_new)
  command('script/licensed', '--module', repo_new)
end

log "Updating grammar documentation in vendor/README.md"
command('bundle', 'exec', 'rake', 'samples')
command('script/sort-submodules')
command('script/list-grammars')