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# frozen_string_literal: true
class Admin::Metrics::Measure::InstanceFollowersMeasure < Admin::Metrics::Measure::BaseMeasure
def self.with_params?
true
end
def key
'instance_followers'
end
def total_in_time_range?
false
end
protected
def perform_total_query
Follow.joins(:account).merge(Account.where(domain: params[:domain])).count
end
def perform_previous_total_query
nil
end
def perform_data_query
sql = <<-SQL.squish
SELECT axis.*, (
WITH new_followers AS (
SELECT follows.id
FROM follows
INNER JOIN accounts ON follows.account_id = accounts.id
WHERE date_trunc('day', follows.created_at)::date = axis.period
AND accounts.domain = $3::text
)
SELECT count(*) FROM new_followers
) AS value
FROM (
SELECT generate_series(date_trunc('day', $1::timestamp)::date, date_trunc('day', $2::timestamp)::date, interval '1 day') AS period
) AS axis
SQL
rows = ActiveRecord::Base.connection.select_all(sql, nil, [[nil, @start_at], [nil, @end_at], [nil, params[:domain]]])
rows.map { |row| { date: row['period'], value: row['value'].to_s } }
end
def time_period
(@start_at.to_date..@end_at.to_date)
end
def previous_time_period
((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
end
def params
@params.permit(:domain)
end
end
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