# encoding: utf-8
require 'optparse'

# Usage: rails_best_practices [options] path
#    -d, --debug                      debug mode
#        --silent                     silent mode
#    -f, --format FORMAT              output format (text, html, yml, json, xml)
#        --output-file FILE           output html file for the analyzing result
#        --without-color              only output plain text without color
#        --with-textmate              open file by textmate in html format
#        --with-sublime               open file by sublime in html format (requires subl-handler)
#        --with-mvim                  open file by mvim in html format
#        --with-github GITHUB_NAME    open file on github in html format, GITHUB_NAME is like railsbp/rails-bestpractices.com
#        --with-git                   display git commit and username, only support html format
#        --with-hg                    display hg commit and username, only support html format
#        --template TEMPLATE          customize erb template
#        --vendor                     include vendor files
#        --spec                       include spec files
#        --test                       include test files
#        --features                   include features files
#    -x, --exclude PATTERNS           don't analyze files matching a pattern
#                                     (comma-separated regexp list)
#    -o, --only PATTERNS              analyze files only matching a pattern
#                                     (comma-separated regexp list)
#    -g, --generate                   generate configuration yaml
#    -v, --version                    show this version
#    -h, --help                       show this message

options = {}

OptionParser.new do |opts|
  opts.banner = 'Usage: rails_best_practices [options] path'

  opts.on('-d', '--debug', 'Debug mode') do
    options['debug'] = true
  end

  opts.on('-f', '--format FORMAT', 'output format (text, html, yml, json, xml)') do |format|
    options['format'] = format
  end

  opts.on('--without-color', 'only output plain text without color') do
    options['without-color'] = true
  end

  opts.on('--with-textmate', 'open file by textmate in html format') do
    options['with-textmate'] = true
  end

  opts.on('--with-sublime', 'open file by sublime in html format') do
    options['with-sublime'] = true
  end

  opts.on('--with-mvim', 'open file by mvim in html format') do
    options['with-mvim'] = true
  end

  opts.on('--with-github GITHUB_NAME', 'open file on github in html format') do |github_name|
    options['with-github'] = true
    options['github-name'] = github_name
  end

  opts.on('--last-commit-id COMMIT_ID', 'last commit id') do |commit_id|
    options['last-commit-id'] = commit_id
  end

  opts.on('--with-hg', 'display hg commit and username, only support html format') do
    options['with-hg'] = true
  end

  opts.on('--with-git', 'display git commit and username, only support html format') do
    options['with-git'] = true
  end

  opts.on('--template TEMPLATE', 'customize erb template') do |template|
    options['template'] = template
  end

  opts.on('--output-file OUTPUT_FILE', 'output html file for the analyzing result') do |output_file|
    options['output-file'] = output_file
  end

  opts.on('--silent', 'silent mode') do
    options['silent'] = true
  end

  ['vendor', 'spec', 'test', 'features'].each do |pattern|
    opts.on("--#{pattern}", "include #{pattern} files") do
      options[pattern] = true
    end
  end

  opts.on_tail('-v', '--version', 'Show this version') do
    require 'rails_best_practices/version'
    puts RailsBestPractices::VERSION
    exit
  end

  opts.on_tail('-h', '--help', 'Show this message') do
    puts opts
    exit
  end

  opts.on('-x', '--exclude PATTERNS', "Don't analyze files matching a pattern", '(comma-separated regexp list)') do |list|
    begin
      options['exclude'] = list.split(',').map{|x| Regexp.new x}
    rescue RegexpError => e
      raise OptionParser::InvalidArgument, e.message
    end
  end

  opts.on('-o', '--only PATTERNS', 'Analyze files only matching a pattern', '(comma-separated regexp list)') do |list|
    begin
      options['only'] = list.split(',').map { |x| Regexp.new x }
    rescue RegexpError => e
      raise OptionParser::InvalidArgument e.message
    end
  end

  opts.on('-g', '--generate', 'Generate configuration yaml') do
    options['generate'] = true
  end

  opts.on(
    '-c',
    '--config CONFIG_PATH', 'configuration file location (defaults to config/rails_best_practices.yml)'
  ) do |config_path|
    options['config'] = config_path
  end

  opts.parse!
end

if ARGV.size > 0 && !File.exists?(ARGV.first)
  puts "#{ARGV.first} doesn't exist"
  exit 1
end

if options['generate']
  RailsBestPractices::Analyzer.new(ARGV.first).generate
else
  analyzer = RailsBestPractices::Analyzer.new(ARGV.first, options)
  analyzer.analyze
  analyzer.output
  exit analyzer.runner.errors.size > 0 ? 1 : 0
end