Class: RailsAiContext::Tools::PerformanceCheck

Inherits:
BaseTool
  • Object
show all
Defined in:
lib/rails_ai_context/tools/performance_check.rb

Constant Summary

Constants inherited from BaseTool

BaseTool::DEFAULT_SESSION, BaseTool::MAX_SESSIONS, BaseTool::MAX_SESSION_ID_LENGTH, BaseTool::SESSION_CONTEXT, BaseTool::SHARED_CACHE

Class Method Summary collapse

Methods inherited from BaseTool

abstract!, abstract?, api_only_app?, api_only_note, cache_key, cached_context, config, current_session, #dedupe_put_patch_routes, detail_param?, error_response, evict_oldest_sessions, extract_method_source_from_file, extract_method_source_from_string, find_closest_match, fuzzy_find_key, guide_row, inherited, introspection_warnings_note, invalid_detail_note, normalize_detail, not_found_response, paginate, rails_app, rails_env_name, registered_tools, reset_all_caches!, reset_cache!, session_from, session_params, session_queries, session_record, session_reset!, static_tier_banner, static_tier_refusal, text_response, touch_session, unavailable_note, with_session, with_session_for

Methods included from SectionFetch

#fetch_section, usable?

Class Method Details

.call(model: nil, category: "all", detail: "standard", server_context: nil) ⇒ Object 



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# File 'lib/rails_ai_context/tools/performance_check.rb', line 41

def self.call(model: nil, category: "all", detail: "standard", server_context: nil)
  fetch_section(:performance, unusable_message: "No performance data available. Ensure :performance introspector is enabled.") do |data|
    model = model.to_s.strip if model

    # Validate model exists if specified
    if model && !model.empty?
      models_data = cached_context[:models]
      if models_data.is_a?(Hash) && !models_data[:error]
        model_names = models_data.keys.map(&:to_s)
        unless model_names.any? { |m| m.downcase == model.downcase }
          return not_found_response("Model", model, model_names,
            recovery_tool: "Call rails_performance_check() without model filter to see all issues")
        end
      end
    end

    lines = [ "# Performance Analysis", "" ]

    # Collect all items then filter, so the count reflects actual displayed results
    all_sections = {}
    all_sections[:n_plus_one] = data[:n_plus_one_risks] || []
    all_sections[:counter_cache] = data[:missing_counter_cache] || []
    all_sections[:indexes] = data[:missing_fk_indexes] || []
    all_sections[:model_all] = data[:model_all_in_controllers] || []
    all_sections[:eager_load] = data[:eager_load_candidates] || []

    # Apply model filter to count
    filtered_count = if model && !model.empty?
      all_sections.values.sum { |items| filter_items(items, model).size }
    elsif category != "all"
      (all_sections[category.to_sym] || []).size
    else
      all_sections.values.sum(&:size)
    end

    lines << "**Total issues found:** #{filtered_count}"
    lines << ""

    if RailsAiContext::DetailLevel.summary?(detail)
      n1_items = filter_items(all_sections[:n_plus_one], model)
      lines << "- N+1 risks: #{n1_items.size}#{risk_summary_counts(n1_items)}"
      lines << "- Missing counter_cache: #{filter_items(all_sections[:counter_cache], model).size}"
      lines << "- Missing FK indexes: #{filter_items(all_sections[:indexes], model).size}"
      lines << "- Model.all in controllers: #{filter_items(all_sections[:model_all], model).size}"
      lines << "- Eager load candidates: #{filter_items(all_sections[:eager_load], model).size}"
    else
      if category == "all" || category == "n_plus_one"
        lines.concat(render_n_plus_one_section(data[:n_plus_one_risks], model, detail))
      end
      if category == "all" || category == "counter_cache"
        lines.concat(render_section("Missing counter_cache", data[:missing_counter_cache], model, detail))
      end
      if category == "all" || category == "indexes"
        lines.concat(render_section("Missing FK Indexes", data[:missing_fk_indexes], model, detail))
      end
      if category == "all" || category == "model_all"
        lines.concat(render_section("Model.all in Controllers", data[:model_all_in_controllers], model, detail))
      end
      if category == "all" || category == "eager_load"
        lines.concat(render_section("Eager Load Candidates", data[:eager_load_candidates], model, detail))
      end
    end

    if filtered_count == 0
      scoped = []
      scoped << "for #{model}" if model && !model.empty?
      scoped << "in category '#{category}'" if category != "all"

      if scoped.empty?
        lines << "No performance issues detected. Your app looks good!"
      else
        lines << "No issues found #{scoped.join(' ')}. Other categories or models may still have issues - " \
          "call rails_performance_check() without filters for the full report."
      end
    end

    text_response(lines.join("\n"))
  end
end