Class: Flycal::Pipeline::Aggregator

Inherits:
Object
  • Object
show all
Defined in:
lib/flycal/pipeline/aggregator.rb

Overview

Second pipeline layer: group events and compute aggregate metrics.

Default group_by from timeframe:

day   — timeframe <= 7 days
week  — timeframe > 7 days and <= 30 days
month — timeframe > 30 days

Override with params / --groupBy:

day | week | month | <any other string> (split on | for string grouping)

Constant Summary collapse

HOURS_PER_WORKING_DAY = 
8
TIME_GROUP_BY = 
%w[day week month].freeze

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.resolve_group_by(timeframe_days, explicit = nil) ⇒ Object 



59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
 
# File 'lib/flycal/pipeline/aggregator.rb', line 59

def self.resolve_group_by(timeframe_days, explicit = nil)
  raw = explicit.to_s.strip
  if raw.empty?
    if timeframe_days > 30
      "month"
    elsif timeframe_days > 7
      "week"
    else
      "day"
    end
  else
    key = raw.downcase
    TIME_GROUP_BY.include?(key) ? key : "string"
  end
end

Instance Method Details

#call(params) ⇒ Object 



22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
 
# File 'lib/flycal/pipeline/aggregator.rb', line 22

def call(params)
  time_min = params[:time_min]
  time_max = params[:time_max]
  events = Array(params[:events])

  timeframe_days = (time_max - time_min) / 86400.0
  group_by = resolve_group_by(timeframe_days, params[:group_by_option])

  params[:timeframe_days] = timeframe_days
  params[:group_by] = group_by

  ranges = events.filter_map do |ev|
    next if ev[:start_at].nil? || ev[:end_at].nil?

    [ev[:start_at], ev[:end_at]]
  end

  total_minutes = ranges.sum { |s, e| (e - s) / 60.0 }
  params[:totals] = {
    event_count: events.size,
    total_minutes: total_minutes,
    hours: (total_minutes / 60.0).floor,
    minutes: (total_minutes % 60).round,
    working_days: (total_minutes / 60.0 / HOURS_PER_WORKING_DAY).round(1)
  }

  params[:groups] =
    case group_by
    when "week" then weekly_groups(events, ranges, time_min, time_max)
    when "month" then monthly_groups(events, ranges, time_min, time_max)
    when "string" then string_groups(events, params[:group_by_option])
    else daily_groups(events, ranges, time_min, time_max)
    end

  params
end