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18b13fb915
* Add yearly digest * Rename YearlyDigests to Users::Digests * Minor changes * Update yearly digest layout and styles * Add flags and chart to email * Update colors * Fix layout of stats in yearly digest view * Remove cron job for yearly digest scheduling * Update CHANGELOG.md * Update digest email setting handling * Allow sharing digest for 1 week or 1 month * Change Digests Distance to Bigint * Fix settings page
79 lines
2.1 KiB
Ruby
79 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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module Users
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module Digests
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class YearOverYearCalculator
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def initialize(user, year)
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@user = user
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@year = year.to_i
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end
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def call
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return {} unless previous_year_stats.exists?
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{
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'previous_year' => year - 1,
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'distance_change_percent' => calculate_distance_change_percent,
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'countries_change' => calculate_countries_change,
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'cities_change' => calculate_cities_change
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}.compact
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end
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private
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attr_reader :user, :year
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def previous_year_stats
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@previous_year_stats ||= user.stats.where(year: year - 1)
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end
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def current_year_stats
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@current_year_stats ||= user.stats.where(year: year)
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end
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def calculate_distance_change_percent
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prev_distance = previous_year_stats.sum(:distance)
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return nil if prev_distance.zero?
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curr_distance = current_year_stats.sum(:distance)
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((curr_distance - prev_distance).to_f / prev_distance * 100).round
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end
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def calculate_countries_change
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prev_count = count_countries(previous_year_stats)
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curr_count = count_countries(current_year_stats)
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curr_count - prev_count
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end
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def calculate_cities_change
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prev_count = count_cities(previous_year_stats)
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curr_count = count_cities(current_year_stats)
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curr_count - prev_count
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end
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def count_countries(stats)
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stats.flat_map do |stat|
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toponyms = stat.toponyms
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next [] unless toponyms.is_a?(Array)
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toponyms.filter_map { |t| t['country'] if t.is_a?(Hash) && t['country'].present? }
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end.uniq.count
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end
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def count_cities(stats)
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stats.flat_map do |stat|
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toponyms = stat.toponyms
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next [] unless toponyms.is_a?(Array)
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toponyms.flat_map do |t|
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next [] unless t.is_a?(Hash) && t['cities'].is_a?(Array)
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t['cities'].filter_map { |c| c['city'] if c.is_a?(Hash) && c['city'].present? }
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end
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end.uniq.count
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end
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end
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end
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end
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