class Cucumber::Cli::Options

def self.parse(args, out_stream, error_stream, options = {})
  new(out_stream, error_stream, options).parse!(args)
end

def [](key)
  @options[key]
end

def []=(key, value)
  @options[key] = value
end

def add_option(option, value)
  @options[option] << value
end

def add_profile(profile)
  @profiles << profile
end

def add_tag(value)
  raise("Found tags option '#{value}'. '~@tag' is no longer supported, use 'not @tag' instead.") if value.include?('~')
  raise("Found tags option '#{value}'. '@tag1,@tag2' is no longer supported, use '@tag or @tag2' instead.") if value.include?(',')
  @options[:tag_expressions] << value.gsub(/(@\w+)(:\d+)?/, '\1')
  add_tag_limits(value)
end

def add_tag_limit(tag_limits, tag_name, limit)
  raise "Inconsistent tag limits for #{tag_name}: #{tag_limits[tag_name]} and #{limit}" if tag_limits[tag_name] && tag_limits[tag_name] != limit
  tag_limits[tag_name] = limit
end

def add_tag_limits(value)
  value.split(/[, ]/).map { |part| TAG_LIMIT_MATCHER.match(part) }.compact.each do |matchdata|
    add_tag_limit(@options[:tag_limits], matchdata[:tag_name], matchdata[:limit].to_i)
  end
end

def banner
  [
    'Usage: cucumber [options] [ [FILE|DIR|URL][:LINE[:LINE]*] ]+', '',
    'Examples:',
    'cucumber examples/i18n/en/features',
    'cucumber @rerun.txt (See --format rerun)',
    'cucumber examples/i18n/it/features/somma.feature:6:98:113',
    'cucumber -s -i http://rubyurl.com/eeCl', '', ''
  ].join("\n")
end

def check_formatter_stream_conflicts
  streams = @options[:formats].uniq.map { |(_, _, stream)| stream }
  return if streams == streams.uniq
  raise 'All but one formatter must use --out, only one can print to each stream (or STDOUT)'
end

def color(color)
  Cucumber::Term::ANSIColor.coloring = color
end

def color_msg
  [
    'Whether or not to use ANSI color in the output. Cucumber decides',
    'based on your platform and the output destination if not specified.'
  ]
end

def custom_profiles
  @profiles - [@default_profile]
end

def default_options
  {
    strict: Cucumber::Core::Test::Result::StrictConfiguration.new,
    require: [],
    dry_run: false,
    formats: [],
    excludes: [],
    tag_expressions: [],
    tag_limits: {},
    name_regexps: [],
    env_vars: {},
    diff_enabled: true,
    snippets: true,
    source: true,
    duration: true,
    retry: 0,
    retry_total: Float::INFINITY
  }
end

def default_profile_should_be_used?
  @profiles.empty? &&
    profile_loader.cucumber_yml_defined? &&
    profile_loader.profile?(@default_profile)
end

def disable_profile_loading
  @disable_profile_loading = true
end

def dry_run_msg
  ['Invokes formatters without executing the steps.']
end

def exclude_msg
  ["Don't run feature files or require ruby files matching PATTERN"]
end

def exit_ok(text)
  @out_stream.puts(text)
  Kernel.exit(0)
end

def extract_environment_variables
  @args.delete_if do |arg|
    if arg =~ /^(\w+)=(.*)$/
      @options[:env_vars][Regexp.last_match(1)] = Regexp.last_match(2)
      true
    end
  end
end

def filters
  @options[:filters] ||= []
end

def format_msg
  ['How to format features (Default: pretty). Available formats:']
end

def i18n_keywords_msg
  [
    'List keywords for in a particular language',
    %(Run with "--i18n help" to see all languages)
  ]
end

def i18n_languages_msg
  [
    'List all available languages'
  ]
end

def indicate_invalid_language_and_exit(lang)
  @out_stream.write("Invalid language '#{lang}'. Available languages are:\n")
  list_languages_and_exit
end

def init_msg
  [
    'Initializes folder structure and generates conventional files for',
    'a Cucumber project.'
  ]
end

def initialize(out_stream = $stdout, error_stream = $stderr, options = {})
  @out_stream   = out_stream
  @error_stream = error_stream
  @default_profile = options[:default_profile]
  @profiles = options[:profiles] || []
  @overridden_paths = []
  @options = default_options.merge(options)
  @profile_loader = options[:profile_loader]
  @options[:skip_profile_information] = options[:skip_profile_information]
  @disable_profile_loading = nil
end

def initialize_project
  ProjectInitializer.new.run && Kernel.exit(0)
end

def language(lang)
  require 'gherkin/dialect'
  return indicate_invalid_language_and_exit(lang) unless ::Gherkin::DIALECTS.key?(lang)
  list_keywords_and_exit(lang)
end

def lines_msg
  ['Run given line numbers. Equivalent to FILE:LINE syntax']
end

def list_keywords_and_exit(lang)
  require 'gherkin/dialect'
  language = ::Gherkin::Dialect.for(lang)
  data = Cucumber::MultilineArgument::DataTable.from(
    [
      ['feature', to_keywords_string(language.feature_keywords)],
      ['background', to_keywords_string(language.background_keywords)],
      ['scenario', to_keywords_string(language.scenario_keywords)],
      ['scenario_outline', to_keywords_string(language.scenario_outline_keywords)],
      ['examples', to_keywords_string(language.examples_keywords)],
      ['given', to_keywords_string(language.given_keywords)],
      ['when', to_keywords_string(language.when_keywords)],
      ['then', to_keywords_string(language.then_keywords)],
      ['and', to_keywords_string(language.and_keywords)],
      ['but', to_keywords_string(language.but_keywords)],
      ['given (code)', to_code_keywords_string(language.given_keywords)],
      ['when (code)', to_code_keywords_string(language.when_keywords)],
      ['then (code)', to_code_keywords_string(language.then_keywords)],
      ['and (code)', to_code_keywords_string(language.and_keywords)],
      ['but (code)', to_code_keywords_string(language.but_keywords)]
    ]
  )
  @out_stream.write(data.to_s(color: false, prefixes: Hash.new('')))
  Kernel.exit(0)
end

def list_languages_and_exit
  require 'gherkin/dialect'
  data = Cucumber::MultilineArgument::DataTable.from(
    ::Gherkin::DIALECTS.keys.map do |key|
      [key, ::Gherkin::DIALECTS[key].fetch('name'), ::Gherkin::DIALECTS[key].fetch('native')]
    end
  )
  @out_stream.write(data.to_s(color: false, prefixes: Hash.new('')))
  Kernel.exit(0)
end

def merge_profiles
  return @out_stream.puts 'Disabling profiles...' if @disable_profile_loading
  @profiles << @default_profile if default_profile_should_be_used?
  @profiles.each { |profile| merge_with_profile(profile) }
  @options[:profiles] = @profiles
end

def merge_tag_limits(option_limits, other_limits)
  other_limits.each { |key, value| add_tag_limit(option_limits, key, value) }
end

def merge_with_profile(profile)
  profile_args = profile_loader.args_from(profile)
  profile_options = Options.parse(
    profile_args, @out_stream, @error_stream,
    skip_profile_information: true,
    profile_loader: profile_loader
  )
  reverse_merge(profile_options)
end

def name_msg
  [
    'Only execute the feature elements which match part of the given name.',
    'If this option is given more than once, it will match against all the',
    'given names.'
  ]
end

def no_profile_short_flag_msg
  [
    "Disables all profile loading to avoid using the 'default' profile."
  ]
end

def non_stdout_formats
  @options[:formats].reject { |_, _, output| output == @out_stream }
end

def out_msg
  [
    'Write output to a file/directory/URL instead of STDOUT. This option',
    'applies to the previously specified --format, or the',
    'default format if no format is specified. Check the specific',
    "formatter's docs to see whether to pass a file, dir or URL.",
    "\n",
    'When using a URL, the output of the formatter will be sent as the HTTP request body.',
    'HTTP headers and request method can be set with cURL like options.',
    'Example: --out "http://example.com -X POST -H Content-Type:text/json"'
  ]
end

def out_stream(value)
  @options[:formats] << ['pretty', {}, nil] if @options[:formats].empty?
  @options[:formats][-1][2] = value
end

def parse!(args)
  @args = args
  @expanded_args = @args.dup
  @args.extend(::OptionParser::Arguable)
  @args.options do |opts|
    opts.banner = banner
    opts.on('--publish', 'Publish a report to https://reports.cucumber.io') do
      set_option :publish_enabled, true
    end
    opts.on('--publish-quiet', 'Don\'t print information banner about publishing reports') { set_option :publish_quiet }
    opts.on('-r LIBRARY|DIR', '--require LIBRARY|DIR', *require_files_msg) { |lib| require_files(lib) }
    opts.on('-j DIR', '--jars DIR', 'Load all the jars under DIR') { |jars| load_jars(jars) } if Cucumber::JRUBY
    opts.on("#{RETRY_FLAG} ATTEMPTS", *retry_msg) { |v| set_option :retry, v.to_i }
    opts.on("#{RETRY_TOTAL_FLAG} TESTS", *retry_total_msg) { |v| set_option :retry_total, v.to_i }
    opts.on('--i18n-languages', *i18n_languages_msg) { list_languages_and_exit }
    opts.on('--i18n-keywords LANG', *i18n_keywords_msg) { |lang| language lang }
    opts.on(FAIL_FAST_FLAG, 'Exit immediately following the first failing scenario') { set_option :fail_fast }
    opts.on('-f FORMAT', '--format FORMAT', *format_msg, *FORMAT_HELP) do |v|
      add_option :formats, [*parse_formats(v), @out_stream]
    end
    opts.on('--init', *init_msg) { initialize_project }
    opts.on('-o', '--out [FILE|DIR|URL]', *out_msg) { |v| out_stream v }
    opts.on('-t TAG_EXPRESSION', '--tags TAG_EXPRESSION', *tags_msg) { |v| add_tag(v) }
    opts.on('-n NAME', '--name NAME', *name_msg) { |v| add_option(:name_regexps, /#{v}/) }
    opts.on('-e', '--exclude PATTERN', *exclude_msg) { |v| add_option :excludes, Regexp.new(v) }
    opts.on(PROFILE_SHORT_FLAG, "#{PROFILE_LONG_FLAG} PROFILE", *profile_short_flag_msg) { |v| add_profile v }
    opts.on(NO_PROFILE_SHORT_FLAG, NO_PROFILE_LONG_FLAG, *no_profile_short_flag_msg) { |_v| disable_profile_loading }
    opts.on('-c', '--[no-]color', *color_msg) { |v| color v }
    opts.on('-d', '--dry-run', *dry_run_msg) { set_dry_run_and_duration }
    opts.on('-m', '--no-multiline', "Don't print multiline strings and tables under steps.") { set_option :no_multiline }
    opts.on('-s', '--no-source', "Don't print the file and line of the step definition with the steps.") { set_option :source, false }
    opts.on('-i', '--no-snippets', "Don't print snippets for pending steps.") { set_option :snippets, false }
    opts.on('-I', '--snippet-type TYPE', *snippet_type_msg) { |v| set_option :snippet_type, v.to_sym }
    opts.on('-q', '--quiet', 'Alias for --no-snippets --no-source --no-duration --publish-quiet.') { shut_up }
    opts.on('--no-duration', "Don't print the duration at the end of the summary") { set_option :duration, false }
    opts.on('-b', '--backtrace', 'Show full backtrace for all errors.') { Cucumber.use_full_backtrace = true }
    opts.on('-S', '--[no-]strict', *strict_msg) { |setting| set_strict(setting) }
    opts.on('--[no-]strict-undefined', 'Fail if there are any undefined results.') { |setting| set_strict(setting, :undefined) }
    opts.on('--[no-]strict-pending', 'Fail if there are any pending results.') { |setting| set_strict(setting, :pending) }
    opts.on('--[no-]strict-flaky', 'Fail if there are any flaky results.') { |setting| set_strict(setting, :flaky) }
    opts.on('-w', '--wip', 'Fail if there are any passing scenarios.') { set_option :wip }
    opts.on('-v', '--verbose', 'Show the files and features loaded.') { set_option :verbose }
    opts.on('-g', '--guess', 'Guess best match for Ambiguous steps.') { set_option :guess }
    opts.on('-l', '--lines LINES', *lines_msg) { |lines| set_option :lines, lines }
    opts.on('-x', '--expand', 'Expand Scenario Outline Tables in output.') { set_option :expand }
    opts.on('--order TYPE[:SEED]', 'Run examples in the specified order. Available types:',
            *<<~TEXT.split("\n")) do |order|
                [defined]     Run scenarios in the order they were defined (default).
                [random]      Shuffle scenarios before running.
              Specify SEED to reproduce the shuffling from a previous run.
                e.g. --order random:5738
            TEXT
      @options[:order], @options[:seed] = *order.split(':')
      raise "'#{@options[:order]}' is not a recognised order type. Please use one of #{ORDER_TYPES.join(', ')}." unless ORDER_TYPES.include?(@options[:order])
    end
    opts.on_tail('--version', 'Show version.') { exit_ok(Cucumber::VERSION) }
    opts.on_tail('-h', '--help', "You're looking at it.") { exit_ok(opts.help) }
  end.parse!
  process_publish_options
  @args.map! { |a| "#{a}:#{@options[:lines]}" } if @options[:lines]
  extract_environment_variables
  @options[:paths] = @args.dup # whatver is left over
  check_formatter_stream_conflicts
  merge_profiles
  self
end

def parse_formats(value)
  formatter, *formatter_options = value.split(',')
  options_hash = Hash[formatter_options.map { |string| string.split('=') }]
  [formatter, options_hash]
end

def process_publish_options
  @options[:publish_enabled] = true if truthy_string?(ENV['CUCUMBER_PUBLISH_ENABLED']) || ENV['CUCUMBER_PUBLISH_TOKEN']
  @options[:formats] << publisher if @options[:publish_enabled]
  @options[:publish_quiet] = true if truthy_string?(ENV['CUCUMBER_PUBLISH_QUIET'])
end

def profile_loader
  @profile_loader ||= ProfileLoader.new
end

def profile_short_flag_msg
  [
    'Pull commandline arguments from cucumber.yml which can be defined as',
    "strings or arrays.  When a 'default' profile is defined and no profile",
    'is specified it is always used. (Unless disabled, see -P below.)',
    'When feature files are defined in a profile and on the command line',
    'then only the ones from the command line are used.'
  ]
end

def publisher
  url = CUCUMBER_PUBLISH_URL
  url += %( -H "Authorization: Bearer #{ENV['CUCUMBER_PUBLISH_TOKEN']}") if ENV['CUCUMBER_PUBLISH_TOKEN']
  ['message', {}, url]
end

def require_files(filenames)
  @options[:require] << filenames
  return unless Cucumber::JRUBY && File.directory?(filenames)
  require 'java'
  $CLASSPATH << filenames
end

def require_files_msg
  [
    'Require files before executing the features. If this',
    'option is not specified, all *.rb files that are',
    'siblings of or below the features will be loaded auto-',
    'matically. Automatic loading is disabled when this',
    'option is specified; all loading becomes explicit.',
    'Files in directories named "support" are still always',
    'loaded first when their parent directories are',
    'required or if the "support" directories themselves are',
    'explicitly required.',
    'This option can be specified multiple times.'
  ]
end

def require_jars(jars)
  Dir["#{jars}/**/*.jar"].sort.each { |jar| require jar }
end

def retry_msg
  ['Specify the number of times to retry failing tests (default: 0)']
end

def retry_total_msg
  [
    'The total number of failing test after which retrying of tests is suspended.',
    'Example: --retry-total 10 -> Will stop retrying tests after 10 failing tests.'
  ]
end

def reverse_merge(other_options)
  @options = other_options.options.merge(@options)
  @options[:require] += other_options[:require]
  @options[:excludes] += other_options[:excludes]
  @options[:name_regexps] += other_options[:name_regexps]
  @options[:tag_expressions] += other_options[:tag_expressions]
  merge_tag_limits(@options[:tag_limits], other_options[:tag_limits])
  @options[:env_vars] = other_options[:env_vars].merge(@options[:env_vars])
  if @options[:paths].empty?
    @options[:paths] = other_options[:paths]
  else
    @overridden_paths += (other_options[:paths] - @options[:paths])
  end
  @options[:source] &= other_options[:source]
  @options[:snippets] &= other_options[:snippets]
  @options[:duration] &= other_options[:duration]
  @options[:strict] = other_options[:strict].merge!(@options[:strict])
  @options[:dry_run] |= other_options[:dry_run]
  @profiles += other_options.profiles
  @expanded_args += other_options.expanded_args
  if @options[:formats].empty?
    @options[:formats] = other_options[:formats]
  else
    @options[:formats] += other_options[:formats]
    @options[:formats] = stdout_formats[0..0] + non_stdout_formats
  end
  @options[:retry] = other_options[:retry] if @options[:retry].zero?
  @options[:retry_total] = other_options[:retry_total] if @options[:retry_total].infinite?
  self
end

def set_dry_run_and_duration
  @options[:dry_run] = true
  @options[:duration] = false
end

def set_option(option, value = nil)
  @options[option] = value.nil? ? true : value
end

def set_strict(setting, type = nil)
  @options[:strict].set_strict(setting, type)
end

def shut_up
  @options[:publish_quiet] = true
  @options[:snippets] = false
  @options[:source] = false
  @options[:duration] = false
end

def snippet_type_msg
  [
    'Use different snippet type (Default: cucumber_expression). Available types:',
    Cucumber::Glue::RegistryAndMore.cli_snippet_type_options
  ].flatten
end

def stdout_formats
  @options[:formats].select { |_, _, output| output == @out_stream }
end

def strict_msg
  [
    'Fail if there are any strict affected results ',
    '(that is undefined, pending or flaky results).'
  ]
end

def tags_msg
  [
    'Only execute the features or scenarios with tags matching TAG_EXPRESSION.',
    'Scenarios inherit tags declared on the Feature level. The simplest',
    'TAG_EXPRESSION is simply a tag. Example: --tags @dev. To represent',
    "boolean NOT preceed the tag with 'not '. Example: --tags 'not @dev'.",
    'A tag expression can have several tags separated by an or which represents',
    "logical OR. Example: --tags '@dev or @wip'. The --tags option can be specified",
    'A tag expression can have several tags separated by an and which represents',
    "logical AND. Example: --tags '@dev and @wip'. The --tags option can be specified",
    'several times, and this also represents logical AND.',
    "Example: --tags '@foo or not @bar' --tags @zap. This represents the boolean",
    'expression (@foo || !@bar) && @zap.',
    "\n",
    'Beware that if you want to use several negative tags to exclude several tags',
    "you have to use logical AND: --tags 'not @fixme and not @buggy'.",
    "\n",
    'Tags can be given a threshold to limit the number of occurrences.',
    'Example: --tags @qa:3 will fail if there are more than 3 occurrences of the @qa tag.',
    'This can be practical if you are practicing Kanban or CONWIP.'
  ]
end

def to_code_keywords_string(list)
  to_keywords_string(Cucumber::Gherkin::I18n.code_keywords_for(list))
end

def to_hash
  Hash(@options)
end

def to_keywords_string(list)
  list.map { |item| "\"#{item}\"" }.join(', ')
end

def truthy_string?(str)
  return false if str.nil?
  str !~ /^(false|no|0)$/i
end