class Wetter

# File lib/wetter/wetter.rb, line 226
def self.current_degrees
  Wetter.new { :be_silent }.match?.to_f
end

# File lib/wetter/toplevel_methods/is_on_roebe.rb, line 12
def self.is_on_roebe?
  ENV['IS_ROEBE'].to_s == '1'
end

# File lib/wetter/commandline/menu.rb, line 14
def self.menu(i)
  if i.is_a? Array
    if i.empty?
      Wetter.new(i)
    else
      i.each {|entry| menu(entry) }
    end
  else
    case i # case tag
    # ===================================================================== #
    # === wetter --temperature-only
    # ===================================================================== #
    when /^-?-?temperature(-|_)?only$/i
      puts Wetter.temperature?
      exit
    # ===================================================================== #
    # === wetter --sinatra
    # ===================================================================== #
    when /^-?-?sinatra$/i,
         /^-?-?www$/i
      require 'wetter/www/start_sinatra_interface.rb'
      Wetter.start_sinatra_interface
    else
      Wetter.new(i)
    end
  end
end

# File lib/wetter/wetter.rb, line 33
def initialize(
    optional_commandline_arguments = ARGV,
    run_already                    = true
  )
  reset
  if block_given?
    yielded = yield
    case yielded
    when :be_silent
      @be_verbose = false
    end
  end
  if optional_commandline_arguments
    menu(optional_commandline_arguments)
  end
  run if run_already
end

# File lib/wetter/wetter.rb, line 214
def self.run(
    i = ARGV
  )
  self.new(i)
end

# File lib/wetter/www/start_sinatra_interface.rb, line 18
def self.start_sinatra_interface
  puts 'Trying to start the sinatra-interface for class Wetter next.'
  ::Wetter::Sinatra.run!
end

# File lib/wetter/wetter.rb, line 76
def cliner
  '=' * 80
end

# File lib/wetter/wetter.rb, line 69
def debug?
  @debug
end

# File lib/wetter/wetter.rb, line 62
def enable_debug_mode
  @debug = true
end

# File lib/wetter/wetter.rb, line 105
def find_match
  @data  =~ USE_THIS_REGEX
  @match = $1.to_s.dup
end

# File lib/wetter/wetter.rb, line 113
def match?
  @match
end

# File lib/wetter/menu.rb, line 12
def menu(i)
  if i.is_a? Array
    i.each {|entry| menu(entry) }
  else
    case i # case tag
    # ===================================================================== #
    # === --URL
    # ===================================================================== #
    when /URL$/i
      show_the_remote_url
      exit
    # ===================================================================== #
    # === help
    # ===================================================================== #
    when /help$/
      show_help
      exit
    # ===================================================================== #
    # === debug
    # ===================================================================== #
    when /debug/
      enable_debug_mode
    end
  end
end

# File lib/wetter/wetter.rb, line 190
def read_in_dataset_from_remote_webpage
  @data = URI.open(URL).read
  if debug?
    opn; e 'Now showing @data, as we run in @debug mode.'
    e cliner
    e @data
    e cliner
  end
  return @data
end

# File lib/wetter/wetter.rb, line 150
def report_result
  if @be_verbose
    n_degrees_celsius = match?.to_f
    result = "The current temperature in Vienna is: "\
             "#{sfancy(n_degrees_celsius)} °C".dup
    if try_to_make_use_of_the_unicode_weather_symbol?
      begin
        require 'roebe/toplevel_methods/unicode/popular_unicode_symbols.rb'
        case n_degrees_celsius
        when 16..50 # Should be clear weather most of the time.
          result << " #{tomato(Roebe.clear_weather)}"
        when 5..15 # Medium-temperature; usually cloudy.
          result << " #{royalblue(Roebe.cloudy_weather_symbol)}"
        when -30..4 # It's really quite cold.
          result << " #{royalblue(Roebe.snowman)}"
        end
      rescue LoadError
      end
    end
    opn; e result
  end
end

# File lib/wetter/wetter.rb, line 54
def reset
  @debug = false
  @be_verbose = true
end

# File lib/wetter/wetter.rb, line 176
def royalblue(i = '')
  Colours.royalblue(i)
end

# File lib/wetter/wetter.rb, line 204
def run
  read_in_dataset_from_remote_webpage
  sanitize_dataset
  find_match
  report_result
end

# File lib/wetter/wetter.rb, line 83
def sanitize_dataset
  splitted = @data.split(N)
  splitted.reject! {|line|
    ! (line.include?('title="Wien Innere Stadt') and line.include?('Temp: '))
  }
  splitted = splitted.first if splitted.is_a? Array
  if debug?
    opn; e 'Now showing the sanitized dataset, as we run in @debug mode.'
    pp splitted
  end
  @data = splitted
  if @data.nil?
    @data =~ USE_DEGREE_REGEX
    unless $1.to_s.dup.empty?
      @data = $1.to_s.dup
    end
  end
end

# File lib/wetter/wetter.rb, line 120
def show_help
  e
  e '  --URL # show the remote URL'
  e
end

# File lib/wetter/wetter.rb, line 134
def show_the_remote_url
  e
  e sfancy("  #{URL}")
  e
end

# File lib/wetter/wetter.rb, line 183
def tomato(i = '')
  Colours.tomato(i)
end

# File lib/wetter/wetter.rb, line 143
def try_to_make_use_of_the_unicode_weather_symbol?
  TRY_TO_MAKE_USE_OF_THE_UNICODE_WEATHER_SYMBOL
end