# All metrics about the readmes
class ReadmeMetrics
	super HashMap[MPackage, ReadmeMetric]

	# Collect all metric names from submetrics
	fun metrics_names: ArraySet[String] do
		var keys = new ArraySet[String]
		keys.add "MPackage"
		for mpackage, values in self do
			keys.add_all values.keys
		end
		return keys
	end

	# Render `self` as a CsvDocument
	fun to_csv: CsvDocument do
		var doc = new CsvDocument
		doc.header = metrics_names.to_a

		var metrics = metrics_names
		for mpackage in self.keys do
			doc.records.add self[mpackage].to_csv_record(metrics)
		end
		return doc
	end

	# Print `self` into stdout
	fun to_console(toolcontext: ToolContext) do
		for mpackage, values in self do
			if not values.has_readme then continue
			values.to_console(toolcontext)
		end
	end

	# Collect metrics for all `mpackages`
	fun collect_metrics(mpackages: Collection[MPackage]) do
		for mpackage in mpackages do
			var metric = new ReadmeMetric(mpackage)
			metric.collect_metrics
			self[mpackage] = metric
		end
	end
end