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# frozen_string_literal: true
module Gitlab
module ImportExport
class AttributesFinder
attr_reader :tree, :included_attributes, :excluded_attributes, :methods, :preloads
def initialize(config:)
@tree = config[:tree] || {}
@included_attributes = config[:included_attributes] || {}
@excluded_attributes = config[:excluded_attributes] || {}
@methods = config[:methods] || {}
@preloads = config[:preloads] || {}
end
def find_root(model_key)
find(model_key, @tree[model_key])
end
def find_relations_tree(model_key)
@tree[model_key]
end
def find_excluded_keys(klass_name)
@excluded_attributes[klass_name.to_sym]&.map(&:to_s) || []
end
private
def find(model_key, model_tree)
{
only: @included_attributes[model_key],
except: @excluded_attributes[model_key],
methods: @methods[model_key],
include: resolve_model_tree(model_tree),
preload: resolve_preloads(model_key, model_tree)
}.compact
end
def resolve_preloads(model_key, model_tree)
model_tree
.map { |submodel_key, submodel_tree| resolve_preload(model_key, submodel_key, submodel_tree) }
.tap { |entries| entries.compact! }
.to_h
.deep_merge(@preloads[model_key].to_h)
.presence
end
def resolve_preload(parent_model_key, model_key, model_tree)
return if @methods[parent_model_key]&.include?(model_key)
[model_key, resolve_preloads(model_key, model_tree)]
end
def resolve_model_tree(model_tree)
return unless model_tree
model_tree
.map(&method(:resolve_model))
end
def resolve_model(model_key, model_tree)
{ model_key => find(model_key, model_tree) }
end
end
end
end
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