70 lines
1.5 KiB
Ruby
70 lines
1.5 KiB
Ruby
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# frozen_string_literal: true
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class ResourceMilestoneEventFinder
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include FinderMethods
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MAX_PER_PAGE = 100
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attr_reader :params, :current_user, :eventable
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def initialize(current_user, eventable, params = {})
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@current_user = current_user
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@eventable = eventable
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@params = params
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end
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def execute
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Kaminari.paginate_array(visible_events)
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end
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private
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def visible_events
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@visible_events ||= visible_to_user(events)
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end
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def events
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@events ||= eventable.resource_milestone_events.include_relations.page(page).per(per_page)
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end
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def visible_to_user(events)
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events.select { |event| visible_for_user?(event) }
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end
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def visible_for_user?(event)
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milestone = event_milestones[event.milestone_id]
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return if milestone.blank?
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parent = milestone.parent
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parent_availabilities[key_for_parent(parent)]
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end
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def parent_availabilities
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@parent_availabilities ||= relevant_parents.to_h do |parent|
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[key_for_parent(parent), Ability.allowed?(current_user, :read_milestone, parent)]
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end
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end
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def key_for_parent(parent)
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"#{parent.class.name}_#{parent.id}"
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end
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def event_milestones
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@milestones ||= events.map(&:milestone).uniq.to_h do |milestone|
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[milestone.id, milestone]
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end
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end
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def relevant_parents
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@relevant_parents ||= event_milestones.map { |_id, milestone| milestone.parent }
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end
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def per_page
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[params[:per_page], MAX_PER_PAGE].compact.min
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end
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def page
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params[:page] || 1
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end
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end
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