Class: ServerStatus::Report

Inherits:
Object
  • Object
show all
Defined in:
lib/server-status/report.rb

Constant Summary collapse

COLUMN_SPACING = 
5

Instance Method Summary collapse

Constructor Details

#initialize(config, options, host_set) ⇒ Report

Returns a new instance of Report.



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# File 'lib/server-status/report.rb', line 6

def initialize(config, options, host_set)
  @config   = config
  @options  = options
  @host_set = host_set
end

Instance Method Details

#generate_table ⇒ Object 



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# File 'lib/server-status/report.rb', line 12

def generate_table
  str = "\n"

  # Gather failures
  failed_columns = if (failed_hosts = @host_set.hosts.reject(&:feteched_status?)).any?
    failed_hosts.map do |host|
      { name: host.name, error: host.status[:error].strip }
    end
  end


  columns = [ :host ] + @host_set.hosts.detect(&:feteched_status?).status.keys

  # Process status values
  statuses = @host_set.hosts.select(&:feteched_status?).map do |host|
    host.status.each_with_object({ host: host.name }) do |(k, v), hash|
      hash[k] = send("format_#{k}", v)
    end
  end

  # Determine column widths
  column_widths = columns.each_with_object({}) do |col, hash|
    sizes  = statuses.map { |s| s[col].uncolorize.size }
    sizes << col.to_s.size

    hash[col] = sizes.max
  end


  # Render headings
  column_widths.each do |col, col_width|
    str << col.to_s.upcase.colorize(:blue)
    str << ' ' * (COLUMN_SPACING + col_width - col.size)
  end

  str << "\n"


  # Render table
  statuses.sort { |x,y| x[:host] <=> y[:host] }.each do |status|
    column_widths.each do |col, col_width|
      str << status[col]
      str << ' ' * (COLUMN_SPACING + col_width - status[col].uncolorize.size)
    end

    str << "\n"
  end

  # Display failures at the end
  if failed_columns
    str << "\nFAILED HOSTS".colorize(:blue)
    str << "\n"
    failed_columns.each do |host|
      str << host[:name]
      str << ' ' * (COLUMN_SPACING + column_widths[:host] - host[:name].uncolorize.size)
      str << host[:error].colorize(:red)
      str << "\n"
    end
  end

  str << "\n"
  str
end