class Cmessages

# File lib/cmessages.rb, line 10
def initialize(options = {})
    @valid_colours  = %I[black light_black red light_red green light_green yellow light_yellow blue light_blue magenta light_magenta cyan light_cyan white light_white default]

    @error_colour   = :light_red
    @warning_colour = :light_yellow
    @success_colour = :light_green
    @info_colour    = :light_cyan

    @error_prefix   = '[ Error ]'
    @warning_prefix = '[ Warning ]'
    @success_prefix = '[ Success ]'
    @info_prefix    = '[ Info ]'

    @use_colours    = true unless options.key?(:use_colours) && options[:use_colours] == false
    @use_prefixes   = true unless options.key?(:use_prefixes) && options[:use_prefixes] == false

    @error_colour   = options[:error_colour] if options.key?(:error_colour) && valid_colour(options[:error_colour])
    @warning_colour = options[:warning_colour] if options.key?(:warning_colour) && valid_colour(options[:warning_colour])
    @success_colour = options[:success_colour] if options.key?(:success_colour) && valid_colour(options[:success_colour])
    @info_colour    = options[:info_colour] if options.key?(:info_colour) && valid_colour(options[:info_colour])

    @error_prefix   = options[:error_prefix] if options.key?(:error_prefix)
    @warning_prefix = options[:warning_prefix] if options.key?(:warning_prefix)
    @success_prefix = options[:success_prefix] if options.key?(:success_prefix)
    @info_prefix    = options[:info_prefix] if options.key?(:info_prefix)
end

# File lib/cmessages.rb, line 41
def error(message = nil)
    return if message.nil?

    real_show_message(@error_prefix, message, @error_colour)
end

# File lib/cmessages.rb, line 59
def info(message = nil)
    return if message.nil?

    real_show_message(@info_prefix, message, @info_colour)
end

# File lib/cmessages.rb, line 65
def real_show_message(prefix, message, colour)
    return if message.nil?

    return if message.empty?

    # String contains 0 or more white-space character and nothing else.
    return if message =~ /\A\s*\z/

    message = "#{prefix} #{message}" if @use_prefixes

    if @use_colours
        puts message.colorize(colour)
    else
        puts message
    end
end

# File lib/cmessages.rb, line 53
def success(message = nil)
    return if message.nil?

    real_show_message(@success_prefix, message, @success_colour)
end

# File lib/cmessages.rb, line 37
def valid_colour(colour)
    return @valid_colours.include?(colour)
end

# File lib/cmessages.rb, line 47
def warning(message = nil)
    return if message.nil?

    real_show_message(@warning_prefix, message, @warning_colour)
end