Module: Gfspark::Graph

Included in:
App
Defined in:
lib/gfspark/graph.rb

Constant Summary collapse

BARS = 
["　",  "▁", "▂", "▃", "▄", "▅", "▆", "▇", "█" ]
RANGES = 
{
  "y"   => 'Year (1day avg)',
  "m"   => 'Month (2hour avg)',
  "w"   => 'Week (30min avg)',
  "3d"  => '3 Days (5min avg)',
  "s3d" => '3 Days (5min avg)',
  "d"   => 'Day (5min avg)',
  "sd"  => 'Day (1min avg)' ,
  "8h"  => '8 Hours (5min avg)',
  "s8h" => '8 Hours (1min avg)' ,
  "4h"  => '4 Hours (5min avg)',
  "s4h" => '4 Hours (1min avg)' ,
  "h"   => 'Hour (5min avg), ',
  "sh"  => 'Hour (1min avg)' ,
  "n"   => 'Half Day (5min avg)',
  "sn"  => 'Half Day (1min avg)',
  "c"   => "%s to $s",
  "sc"  => "%s to $s"
}

Instance Method Summary collapse

Instance Method Details

#bar(val, unit) ⇒ Object 



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# File 'lib/gfspark/graph.rb', line 5

def bar(val, unit)
  n = (val.to_f/unit).ceil
  @height.times.map{|i|
    x = n - (i * 8)
    (x > 0) ?  (x < 8) ? BARS[x] : BARS.last : "　"
  }
end

#period_title ⇒ Object 



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# File 'lib/gfspark/graph.rb', line 44

def period_title
  case @options[:t]
    when "c", "sc" then sprintf(RANGES[@options[:t]], @options[:from], @options[:to])
    else RANGES[@options[:t]]
  end
end

#range_arg?(t) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gfspark/graph.rb', line 71

def range_arg?(t)
  RANGES.keys.include? t
end

#render(json, summary) ⇒ Object 



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# File 'lib/gfspark/graph.rb', line 13

def render(json, summary)
  rows = json['rows']
  max = rows.flatten.compact.max
  max_val = (max / 8).ceil * 8
  unit  = max_val / (@height * 8).to_f

  s = Time.at(json["start_timestamp"].to_i).strftime("%Y-%m-%d %H:%M:%S")
  e = Time.at(json["end_timestamp"].to_i).strftime("%Y-%m-%d %H:%M:%S")

  puts "  #{blue(json["column_names"].first)}"
  puts ""
  puts "    #{period_title}   #{s} - #{e}"
  puts ""

  result = []
  rows.flatten.map{|row| bar(row, unit)}.transpose.reverse.each_with_index do |row, i|
    i = (@height- i)
    label = i.even? ? sprintf("%.1f", unit * i * 8) : ""
    line = row.join
    if color = @options[:color]
      line = Term::ANSIColor.send(color, line)
    end
    result << "#{sprintf("%10s", label)} | #{line} |"
  end
  puts result.join("\n")
  puts ""

  sums = summary.first.last
  puts "    #{sprintf("cur: %.1f  ave: %.1f  max: %.1f  min %.1f", *sums)}"
end