class Rubydex::CLI::Command::Lint::Explain

# File lib/rubydex/cli/command/lint/explain.rb, line 19
def usage_form
  "lint explain <RULE>"
end

# File lib/rubydex/cli/command/lint/explain.rb, line 25
def run
  parse_options!

  rule_name = argv.shift
  abort_with_usage("`lint explain` requires a rule name argument") unless rule_name
  abort_with_usage("unexpected argument: #{argv.first}") unless argv.empty?

  workspace_path = current_workspace_path

  graph = Rubydex::Graph.configure_for_workspace(workspace_path)
  graph.index_all([*BASE_PATHS, *Rubydex::Linter::RuleLoader.paths(workspace_path)])
  graph.resolve

  base_rule = graph["Rubydex::Rule"]
  abort("Base rule class is not found. This is an issue in Rubydex itself") unless base_rule.is_a?(Rubydex::Class)

  rule_declarations = base_rule.descendants.grep(Rubydex::Class) #: as Array[Rubydex::Class]
  matched_rule_names = rule_declarations.filter_map do |declaration|
    declaration_name = declaration.name
    next unless declaration_name
    next if declaration_name == "Rubydex::Rule" || declaration_name == "Rubydex::Linter::CustomRule"
    next unless declaration_name.end_with?(rule_name)

    declaration
  end
  abort("Rule does not exist: #{rule_name}") if matched_rule_names.empty?

  puts(matched_rule_names.sort_by(&:name).map { |rule| documentation_for(rule) }.join("\n"))
end