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# frozen_string_literal: true
class InstanceFilter
KEYS = %i(
limited
by_domain
warning
unavailable
).freeze
attr_reader :params
def initialize(params)
@params = params
end
def results
scope = Instance.includes(:domain_block, :domain_allow, :unavailable_domain).order(accounts_count: :desc)
params.each do |key, value|
scope.merge!(scope_for(key, value.to_s.strip)) if value.present?
end
scope
end
private
def scope_for(key, value)
case key.to_s
when 'limited'
Instance.joins(:domain_block).reorder(Arel.sql('domain_blocks.id desc'))
when 'allowed'
Instance.joins(:domain_allow).reorder(Arel.sql('domain_allows.id desc'))
when 'by_domain'
Instance.matches_domain(value)
when 'warning'
Instance.where(domain: DeliveryFailureTracker.warning_domains)
when 'unavailable'
Instance.joins(:unavailable_domain)
else
raise "Unknown filter: #{key}"
end
end
end
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