Class: SlackProgressBar::Config

Inherits:
Object
  • Object
show all
Defined in:
lib/slack_progress_bar/config.rb

Constant Summary collapse

InvalidConfigError = 
Class.new(StandardError)
DEFAULT_PREFIX = 
"pb"
DEFAULT_LETTERS =

The default letters stand for: purple, blue, green, yellow, orange, red, and white. See SlackProgressBar::Generator::DEFAULT_COLORS for more information.

%w[p b g y o r w].freeze
DEFAULT_ALIASES = 
{
  purple: "p",
  blue: "b",
  green: "g",
  yellow: "y",
  orange: "o",
  red: "r",
  white: "w",
}.freeze
PREFIX_PATTERN = 
/\A[0-9a-z]+\z/.freeze
LETTER_PATTERN = 
/\A[a-z]\z/.freeze
SEPARATOR = 
"-"
LEFT_CAP_SUFFIX = 
"a"
RIGHT_CAP_SUFFIX = 
"z"
CIRCLE_SUFFIX = 
"o"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Config

Returns a new instance of Config.



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# File 'lib/slack_progress_bar/config.rb', line 34

def initialize
  @prefix = DEFAULT_PREFIX
  @letters = DEFAULT_LETTERS
  @aliases = DEFAULT_ALIASES
end

Instance Attribute Details

#aliases ⇒ Object

Returns the value of attribute aliases.



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# File 'lib/slack_progress_bar/config.rb', line 32

def aliases
  @aliases
end

#letters ⇒ Object

Returns the value of attribute letters.



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# File 'lib/slack_progress_bar/config.rb', line 32

def letters
  @letters
end

#prefix ⇒ Object

Returns the value of attribute prefix.



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# File 'lib/slack_progress_bar/config.rb', line 32

def prefix
  @prefix
end

Instance Method Details

#circle_suffix ⇒ Object 



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# File 'lib/slack_progress_bar/config.rb', line 117

def circle_suffix
  CIRCLE_SUFFIX
end

#default_letter ⇒ Object 



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# File 'lib/slack_progress_bar/config.rb', line 101

def default_letter
  letters.last
end

#left_cap_suffix ⇒ Object 



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# File 'lib/slack_progress_bar/config.rb', line 109

def left_cap_suffix
  LEFT_CAP_SUFFIX
end

#right_cap_suffix ⇒ Object 



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# File 'lib/slack_progress_bar/config.rb', line 113

def right_cap_suffix
  RIGHT_CAP_SUFFIX
end

#separator ⇒ Object 



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# File 'lib/slack_progress_bar/config.rb', line 105

def separator
  SEPARATOR
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/slack_progress_bar/config.rb', line 93

def valid?
  validate!
rescue InvalidConfigError
  false
else
  true
end

#validate! ⇒ Object 



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# File 'lib/slack_progress_bar/config.rb', line 40

def validate!
  unless prefix.is_a?(String)
    raise InvalidConfigError, "The prefix must be a String. Found #{prefix.class.name}: #{prefix.inspect}"
  end

  unless PREFIX_PATTERN.match?(prefix)
    raise InvalidConfigError, "The prefix must only contain digits 0-9 and/or lowercase letters a-z. Found: #{prefix.inspect}"
  end

  unless letters.is_a?(Array)
    raise InvalidConfigError, "Configured letters must be an Array. Found #{letters.class.name}: #{letters.inspect}"
  end

  case letters.size
  when 0
    raise InvalidConfigError, "Provide at least two letters."
  when 1
    raise InvalidConfigError, "Provide at least two letters. The last letter will be used as the default."
  end

  unless letters.uniq.size == letters.size
    raise InvalidConfigError, "Configured letters must be unique."
  end

  letters.each do |letter|
    unless letter.is_a?(String)
      raise InvalidConfigError, "Every letter must be a String. Found #{letter.class.name}: #{letter.inspect}"
    end

    unless LETTER_PATTERN.match?(letter)
      raise InvalidConfigError, "The only valid letters are lowercase a-z. Found: #{letter.inspect}"
    end
  end

  unless aliases.is_a?(Hash)
    raise InvalidConfigError, "Configured aliases must be a Hash. Found #{aliases.class.name}: #{aliases.inspect}"
  end

  aliases.each do |name, letter|
    unless name.is_a?(Symbol)
      raise InvalidConfigError, "Every alias must have a Symbol name. Found #{name.class.name}: #{name.inspect}"
    end

    unless letter.is_a?(String)
      raise InvalidConfigError, "Every alias must point to a String letter. Found #{letter.class.name}: #{letter.inspect}"
    end

    unless letters.include?(letter)
      raise InvalidConfigError, "Every alias must point to a valid letter. Found: #{letter.inspect}"
    end
  end
end