Class: Llmemory::MCP::Tools::MemoryTimeline

Inherits:
MCP::Tool
  • Object
show all
Defined in:
lib/llmemory/mcp/tools/memory_timeline.rb

Class Method Summary collapse

Class Method Details

.call(user_id:, hours: nil, include_messages: nil, server_context: nil) ⇒ Object 



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# File 'lib/llmemory/mcp/tools/memory_timeline.rb', line 19

def call(user_id:, hours: nil, include_messages: nil, server_context: nil)
  hours = hours || 24
  include_msgs = include_messages.nil? ? true : include_messages

  timeline = []

  # Get recent items from long-term memory
  storage = build_long_term_storage
  begin
    items = storage.get_items_since(user_id, hours: hours)
    items.each do |item|
      timeline << {
        type: "fact",
        timestamp: item[:created_at] || item["created_at"],
        category: item[:category] || item["category"],
        content: item[:content] || item["content"]
      }
    end
  rescue NotImplementedError
    # Some storages may not implement get_items_since
  end

  # Get recent messages from short-term
  if include_msgs
    store = build_short_term_store
    sessions = store.list_sessions(user_id: user_id)
    sessions.each do |session_id|
      state = store.load(user_id, session_id)
      next unless state.is_a?(Hash)
      messages = state[:messages] || state["messages"] || []
      messages.each_with_index do |m, idx|
        timeline << {
          type: "message",
          timestamp: state[:updated_at] || Time.now,
          session_id: session_id,
          role: m[:role] || m["role"],
          content: m[:content] || m["content"],
          order: idx
        }
      end
    end
  end

  # Sort by timestamp (most recent first)
  timeline.sort_by! { |t| t[:timestamp].to_s }.reverse!

  ::MCP::Tool::Response.new([{
    type: "text",
    text: format_timeline(timeline, hours)
  }])
rescue => e
  ::MCP::Tool::Response.new([{
    type: "text",
    text: "Error getting timeline: #{e.message}"
  }], error: true)
end