# Foundation.Application supervision tree
def children(_opts) do
  [
    # Foundation core services
    {Foundation.ProcessRegistry, []},
    {Foundation.Services.Telemetry, []},
    {Foundation.Services.EventBus, []},
    
    # MABEAM coordination services
    {Foundation.MABEAM.Supervisor, []},
    {Foundation.MABEAM.Registry, []},
    {Foundation.MABEAM.Coordination, []},
    {Foundation.MABEAM.Economics, []},
    {Foundation.MABEAM.Telemetry, []}
  ]
end

defmodule Foundation.MABEAM.Supervisor do
  @moduledoc """
  Root supervisor for all MABEAM services with fault tolerance
  """
  
  use Supervisor
  
  def start_link(opts) do
    Supervisor.start_link(__MODULE__, opts, name: __MODULE__)
  end
  
  def init(opts) do
    children = [
      # High-performance agent registry
      {Foundation.MABEAM.Registry, opts[:registry] || []},
      
      # Advanced coordination engine
      {Foundation.MABEAM.Coordination, opts[:coordination] || []},
      
      # Economic mechanisms (auctions, markets, reputation)
      {Foundation.MABEAM.Economics, opts[:economics] || []},
      
      # Agent lifecycle management
      {Foundation.MABEAM.AgentSupervisor, opts[:agents] || []},
      
      # Performance monitoring and telemetry
      {Foundation.MABEAM.Monitor, opts[:monitor] || []},
      
      # Distributed coordination primitives
      {Foundation.MABEAM.Distributed, opts[:distributed] || []}
    ]
    
    Supervisor.init(children, strategy: :one_for_one)
  end
end

defmodule Foundation.MABEAM.Registry do
  @moduledoc """
  High-performance agent registry with comprehensive indexing
  
  Performance targets:
  - Read operations: < 1μs
  - Write operations: < 10μs  
  - Agent discovery: < 100μs
  - Health checks: < 1ms
  """
  
  use GenServer
  require Logger
  
  # ETS table configurations
  @main_table :mabeam_agents_main
  @capability_index :mabeam_capability_index
  @health_index :mabeam_health_index
  @node_index :mabeam_node_index
  @resource_index :mabeam_resource_index
  @performance_index :mabeam_performance_index
  
  def start_link(opts) do
    GenServer.start_link(__MODULE__, opts, name: __MODULE__)
  end
  
  def init(opts) do
    # Create high-performance ETS tables
    tables = create_ets_tables()
    
    # Initialize monitoring
    :timer.send_interval(1000, :health_check)
    :timer.send_interval(5000, :performance_snapshot)
    
    # Setup distributed coordination if enabled
    distributed_opts = setup_distributed_coordination(opts)
    
    {:ok, %{
      tables: tables,
      distributed: distributed_opts,
      metrics: initialize_metrics(),
      started_at: DateTime.utc_now()
    }}
  end
  
  # High-performance agent registration
  def register_agent(agent_spec, opts \\ []) do
    GenServer.call(__MODULE__, {:register, agent_spec, opts})
  end
  
  # Microsecond agent lookup (ETS read)
  def lookup_agent(agent_id) do
    case :ets.lookup(@main_table, agent_id) do
      [{^agent_id, agent_info}] -> {:ok, agent_info}
      [] -> {:error, :not_found}
    end
  end
  
  # Fast capability-based discovery
  def find_agents_by_capability(capability, opts \\ []) do
    match_pattern = {{capability, :"$1"}, :"$2"}
    agents = :ets.match(@capability_index, match_pattern)
    
    # Apply filters and limits
    agents
    |> apply_filters(opts[:filters] || [])
    |> apply_limit(opts[:limit] || 100)
    |> Enum.map(&lookup_agent/1)
    |> filter_ok_results()
  end
  
  # Real-time health monitoring
  def get_agent_health(agent_id) do
    case :ets.lookup(@health_index, agent_id) do
      [{^agent_id, health_info}] -> {:ok, health_info}
      [] -> {:error, :not_found}
    end
  end
  
  # Resource usage tracking
  def get_resource_usage(agent_id) do
    case :ets.lookup(@resource_index, agent_id) do
      [{^agent_id, resource_info}] -> {:ok, resource_info}
      [] -> {:error, :not_found}
    end
  end
  
  # Performance metrics access
  def get_agent_performance(agent_id) do
    case :ets.lookup(@performance_index, agent_id) do
      [{^agent_id, perf_info}] -> {:ok, perf_info}
      [] -> {:error, :not_found}
    end
  end
  
  # GenServer implementation
  def handle_call({:register, agent_spec, opts}, _from, state) do
    case register_agent_internal(agent_spec, opts, state) do
      {:ok, agent_info} ->
        # Update all indexes
        update_all_indexes(agent_info)
        
        # Emit telemetry
        :telemetry.execute([:foundation, :mabeam, :agent, :registered], %{}, %{
          agent_id: agent_info.id,
          capabilities: agent_info.capabilities,
          node: node()
        })
        
        {:reply, {:ok, agent_info}, state}
        
      {:error, reason} ->
        {:reply, {:error, reason}, state}
    end
  end
  
  def handle_info(:health_check, state) do
    perform_health_checks(state)
    {:noreply, state}
  end
  
  def handle_info(:performance_snapshot, state) do
    collect_performance_metrics(state)
    {:noreply, state}
  end
  
  # Private implementation
  defp create_ets_tables do
    tables = %{
      main: :ets.new(@main_table, [:set, :named_table, :public, {:read_concurrency, true}]),
      capability: :ets.new(@capability_index, [:bag, :named_table, :public, {:read_concurrency, true}]),
      health: :ets.new(@health_index, [:set, :named_table, :public, {:read_concurrency, true}]),
      node: :ets.new(@node_index, [:bag, :named_table, :public, {:read_concurrency, true}]),
      resource: :ets.new(@resource_index, [:set, :named_table, :public, {:read_concurrency, true}]),
      performance: :ets.new(@performance_index, [:set, :named_table, :public, {:read_concurrency, true}])
    }
    
    Logger.info("Created MABEAM registry ETS tables: #{inspect(Map.keys(tables))}")
    tables
  end
  
  defp register_agent_internal(agent_spec, opts, state) do
    agent_info = %{
      id: agent_spec.id,
      pid: agent_spec.pid,
      module: agent_spec.module,
      capabilities: extract_capabilities(agent_spec),
      config: agent_spec.config || %{},
      health: %{status: :healthy, last_check: DateTime.utc_now()},
      resources: initialize_resource_tracking(),
      performance: initialize_performance_tracking(),
      registered_at: DateTime.utc_now(),
      node: node()
    }
    
    # Validate agent specification
    case validate_agent_spec(agent_info) do
      :ok ->
        # Insert into main table
        :ets.insert(@main_table, {agent_info.id, agent_info})
        {:ok, agent_info}
        
      {:error, reason} ->
        {:error, reason}
    end
  end
  
  defp update_all_indexes(agent_info) do
    # Update capability index
    Enum.each(agent_info.capabilities, fn capability ->
      :ets.insert(@capability_index, {{capability, agent_info.id}, agent_info.pid})
    end)
    
    # Update health index
    :ets.insert(@health_index, {agent_info.id, agent_info.health})
    
    # Update node index
    :ets.insert(@node_index, {{agent_info.node, agent_info.id}, agent_info.pid})
    
    # Update resource index
    :ets.insert(@resource_index, {agent_info.id, agent_info.resources})
    
    # Update performance index
    :ets.insert(@performance_index, {agent_info.id, agent_info.performance})
  end
  
  defp extract_capabilities(agent_spec) do
    # Extract capabilities from agent module or spec
    cond do
      is_function(agent_spec.module.__info__, 1) ->
        # Get capabilities from module attributes
        agent_spec.module.__info__(:attributes)
        |> Keyword.get(:capabilities, [])
        
      Map.has_key?(agent_spec, :capabilities) ->
        agent_spec.capabilities
        
      true ->
        # Default capabilities based on module name
        [:generic]
    end
  end
  
  defp validate_agent_spec(agent_info) do
    cond do
      not is_pid(agent_info.pid) ->
        {:error, :invalid_pid}
        
      not Process.alive?(agent_info.pid) ->
        {:error, :dead_process}
        
      agent_info.id == nil ->
        {:error, :missing_agent_id}
        
      true ->
        :ok
    end
  end
  
  defp initialize_resource_tracking do
    %{
      cpu_usage: 0.0,
      memory_usage: 0,
      message_queue_length: 0,
      last_updated: DateTime.utc_now()
    }
  end
  
  defp initialize_performance_tracking do
    %{
      response_times: [],
      success_rate: 1.0,
      error_count: 0,
      total_requests: 0,
      last_updated: DateTime.utc_now()
    }
  end
  
  defp perform_health_checks(state) do
    # Get all agents
    agents = :ets.tab2list(@main_table)
    
    # Check health of each agent
    Enum.each(agents, fn {agent_id, agent_info} ->
      health_status = check_agent_health(agent_info)
      :ets.insert(@health_index, {agent_id, health_status})
    end)
  end
  
  defp check_agent_health(agent_info) do
    cond do
      not Process.alive?(agent_info.pid) ->
        %{status: :dead, last_check: DateTime.utc_now(), reason: :process_dead}
        
      Process.info(agent_info.pid, :message_queue_len) |> elem(1) > 1000 ->
        %{status: :overloaded, last_check: DateTime.utc_now(), reason: :high_message_queue}
        
      true ->
        %{status: :healthy, last_check: DateTime.utc_now()}
    end
  end
  
  defp collect_performance_metrics(state) do
    # Collect system-wide performance metrics
    metrics = %{
      total_agents: :ets.info(@main_table, :size),
      healthy_agents: count_healthy_agents(),
      avg_response_time: calculate_avg_response_time(),
      system_load: :cpu_sup.avg1() / 256,
      memory_usage: :memsup.get_system_memory_data(),
      timestamp: DateTime.utc_now()
    }
    
    # Emit telemetry
    :telemetry.execute([:foundation, :mabeam, :registry, :performance], metrics, %{})
  end
  
  defp setup_distributed_coordination(opts) do
    if opts[:distributed] do
      # Future: Setup Horde or custom distributed coordination
      Logger.info("Distributed coordination enabled for MABEAM registry")
      %{enabled: true, nodes: [node()]}
    else
      %{enabled: false}
    end
  end
  
  defp initialize_metrics do
    %{
      registrations: 0,
      lookups: 0,
      health_checks: 0,
      performance_snapshots: 0
    }
  end
end

defmodule Foundation.MABEAM.Coordination do
  @moduledoc """
  Advanced coordination engine supporting multiple coordination protocols
  
  Supported Protocols:
  - Simple consensus (3-5 agents)
  - Hierarchical consensus (6+ agents)
  - Byzantine fault tolerant consensus (when fault tolerance required)
  - Market-based coordination (when economic incentives needed)
  - Ensemble learning coordination (for ML-specific workflows)
  """
  
  use GenServer
  require Logger
  
  # Coordination protocol implementations
  @protocols %{
    simple_consensus: Foundation.MABEAM.Protocols.SimpleConsensus,
    hierarchical_consensus: Foundation.MABEAM.Protocols.HierarchicalConsensus,
    byzantine_consensus: Foundation.MABEAM.Protocols.ByzantineConsensus,
    market_coordination: Foundation.MABEAM.Protocols.MarketCoordination,
    ensemble_learning: Foundation.MABEAM.Protocols.EnsembleLearning,
    hyperparameter_optimization: Foundation.MABEAM.Protocols.HyperparameterOptimization
  }
  
  def start_link(opts) do
    GenServer.start_link(__MODULE__, opts, name: __MODULE__)
  end
  
  def init(opts) do
    state = %{
      active_coordinations: %{},
      protocol_configs: opts[:protocols] || %{},
      performance_history: [],
      started_at: DateTime.utc_now()
    }
    
    {:ok, state}
  end
  
  # Primary coordination interface
  def coordinate(coordination_spec, opts \\ []) do
    GenServer.call(__MODULE__, {:coordinate, coordination_spec, opts})
  end
  
  def get_coordination_status(coordination_id) do
    GenServer.call(__MODULE__, {:get_status, coordination_id})
  end
  
  def cancel_coordination(coordination_id, reason \\ :cancelled) do
    GenServer.call(__MODULE__, {:cancel, coordination_id, reason})
  end
  
  # Protocol selection based on coordination requirements
  def select_coordination_protocol(coordination_spec) do
    participant_count = length(coordination_spec.participants)
    fault_tolerance_required = coordination_spec.fault_tolerance || false
    economic_incentives = coordination_spec.economic_incentives || false
    ml_specific = coordination_spec.type in [:ensemble_learning, :hyperparameter_optimization]
    
    cond do
      ml_specific ->
        coordination_spec.type
        
      economic_incentives ->
        :market_coordination
        
      fault_tolerance_required ->
        :byzantine_consensus
        
      participant_count >= 6 ->
        :hierarchical_consensus
        
      true ->
        :simple_consensus
    end
  end
  
  # GenServer implementation
  def handle_call({:coordinate, coordination_spec, opts}, from, state) do
    coordination_id = generate_coordination_id()
    protocol = select_coordination_protocol(coordination_spec)
    
    # Start coordination with selected protocol
    case start_coordination(protocol, coordination_id, coordination_spec, opts) do
      {:ok, coordination_pid} ->
        coordination_info = %{
          id: coordination_id,
          protocol: protocol,
          pid: coordination_pid,
          spec: coordination_spec,
          started_at: DateTime.utc_now(),
          from: from
        }
        
        new_state = %{state | 
          active_coordinations: Map.put(state.active_coordinations, coordination_id, coordination_info)
        }
        
        # Don't reply immediately - coordination will reply when complete
        {:noreply, new_state}
        
      {:error, reason} ->
        {:reply, {:error, reason}, state}
    end
  end
  
  def handle_call({:get_status, coordination_id}, _from, state) do
    case Map.get(state.active_coordinations, coordination_id) do
      nil ->
        {:reply, {:error, :not_found}, state}
        
      coordination_info ->
        status = get_protocol_status(coordination_info.protocol, coordination_info.pid)
        {:reply, {:ok, status}, state}
    end
  end
  
  def handle_call({:cancel, coordination_id, reason}, _from, state) do
    case Map.get(state.active_coordinations, coordination_id) do
      nil ->
        {:reply, {:error, :not_found}, state}
        
      coordination_info ->
        cancel_protocol_coordination(coordination_info.protocol, coordination_info.pid, reason)
        new_state = %{state |
          active_coordinations: Map.delete(state.active_coordinations, coordination_id)
        }
        {:reply, :ok, new_state}
    end
  end
  
  # Handle coordination completion
  def handle_info({:coordination_complete, coordination_id, result}, state) do
    case Map.get(state.active_coordinations, coordination_id) do
      nil ->
        Logger.warning("Received completion for unknown coordination: #{coordination_id}")
        {:noreply, state}
        
      coordination_info ->
        # Reply to original caller
        GenServer.reply(coordination_info.from, result)
        
        # Update performance history
        duration = DateTime.diff(DateTime.utc_now(), coordination_info.started_at, :microsecond)
        performance_record = %{
          protocol: coordination_info.protocol,
          participants: length(coordination_info.spec.participants),
          duration_us: duration,
          result: result,
          timestamp: DateTime.utc_now()
        }
        
        new_state = %{state |
          active_coordinations: Map.delete(state.active_coordinations, coordination_id),
          performance_history: [performance_record | Enum.take(state.performance_history, 999)]
        }
        
        # Emit telemetry
        :telemetry.execute([:foundation, :mabeam, :coordination, :complete], %{
          duration_us: duration,
          participants: length(coordination_info.spec.participants)
        }, %{
          protocol: coordination_info.protocol,
          result: elem(result, 0)
        })
        
        {:noreply, new_state}
    end
  end
  
  # Private implementation
  defp start_coordination(protocol, coordination_id, coordination_spec, opts) do
    protocol_module = Map.get(@protocols, protocol)
    
    if protocol_module do
      # Start coordination process
      protocol_module.start_coordination(coordination_id, coordination_spec, opts)
    else
      {:error, {:unknown_protocol, protocol}}
    end
  end
  
  defp get_protocol_status(protocol, pid) do
    protocol_module = Map.get(@protocols, protocol)
    
    if protocol_module and Process.alive?(pid) do
      protocol_module.get_status(pid)
    else
      %{status: :unknown}
    end
  end
  
  defp cancel_protocol_coordination(protocol, pid, reason) do
    protocol_module = Map.get(@protocols, protocol)
    
    if protocol_module and Process.alive?(pid) do
      protocol_module.cancel(pid, reason)
    end
  end
  
  defp generate_coordination_id do
    :crypto.strong_rand_bytes(16) |> Base.encode16(case: :lower)
  end
end

defmodule Foundation.MABEAM.Economics do
  @moduledoc """
  Economic coordination mechanisms for intelligent resource allocation
  
  Supported Mechanisms:
  - English auctions (open ascending price)
  - Dutch auctions (descending price with time pressure)
  - Sealed-bid auctions (private bid submission)
  - Vickrey auctions (second-price for truth revelation)
  - Combinatorial auctions (multi-item bundle bidding)
  - Reputation systems (multi-dimensional scoring)
  - Market mechanisms (real-time pricing)
  """
  
  use GenServer
  require Logger
  
  def start_link(opts) do
    GenServer.start_link(__MODULE__, opts, name: __MODULE__)
  end
  
  def init(opts) do
    state = %{
      active_auctions: %{},
      agent_reputations: %{},
      market_prices: %{},
      economic_history: [],
      anti_gaming_measures: initialize_anti_gaming(),
      started_at: DateTime.utc_now()
    }
    
    # Start periodic reputation updates
    :timer.send_interval(60_000, :update_reputations)
    :timer.send_interval(30_000, :update_market_prices)
    
    {:ok, state}
  end
  
  # Auction creation and management
  def create_auction(auction_spec, opts \\ []) do
    GenServer.call(__MODULE__, {:create_auction, auction_spec, opts})
  end
  
  def place_bid(auction_id, agent_id, bid_spec) do
    GenServer.call(__MODULE__, {:place_bid, auction_id, agent_id, bid_spec})
  end
  
  def get_auction_status(auction_id) do
    GenServer.call(__MODULE__, {:get_auction_status, auction_id})
  end
  
  # Reputation management
  def get_agent_reputation(agent_id) do
    GenServer.call(__MODULE__, {:get_reputation, agent_id})
  end
  
  def update_agent_performance(agent_id, performance_data) do
    GenServer.cast(__MODULE__, {:update_performance, agent_id, performance_data})
  end
  
  # Market mechanisms
  def get_market_price(resource_type) do
    GenServer.call(__MODULE__, {:get_market_price, resource_type})
  end
  
  def create_market_order(agent_id, order_spec) do
    GenServer.call(__MODULE__, {:create_market_order, agent_id, order_spec})
  end
  
  # GenServer implementation
  def handle_call({:create_auction, auction_spec, opts}, _from, state) do
    auction_id = generate_auction_id()
    
    case validate_auction_spec(auction_spec) do
      :ok ->
        auction_info = %{
          id: auction_id,
          type: auction_spec.type,
          resource: auction_spec.resource,
          starting_price: auction_spec.starting_price,
          reserve_price: auction_spec.reserve_price,
          duration: auction_spec.duration,
          participants: [],
          bids: [],
          status: :active,
          created_at: DateTime.utc_now(),
          creator: auction_spec.creator
        }
        
        # Schedule auction end
        Process.send_after(self(), {:auction_timeout, auction_id}, auction_spec.duration)
        
        new_state = %{state |
          active_auctions: Map.put(state.active_auctions, auction_id, auction_info)
        }
        
        {:reply, {:ok, auction_id}, new_state}
        
      {:error, reason} ->
        {:reply, {:error, reason}, state}
    end
  end
  
  def handle_call({:place_bid, auction_id, agent_id, bid_spec}, _from, state) do
    case Map.get(state.active_auctions, auction_id) do
      nil ->
        {:reply, {:error, :auction_not_found}, state}
        
      auction_info when auction_info.status != :active ->
        {:reply, {:error, :auction_not_active}, state}
        
      auction_info ->
        case validate_bid(bid_spec, auction_info, agent_id, state) do
          :ok ->
            bid_info = %{
              agent_id: agent_id,
              amount: bid_spec.amount,
              timestamp: DateTime.utc_now(),
              bid_data: bid_spec.data || %{}
            }
            
            updated_auction = %{auction_info |
              bids: [bid_info | auction_info.bids],
              participants: Enum.uniq([agent_id | auction_info.participants])
            }
            
            new_state = %{state |
              active_auctions: Map.put(state.active_auctions, auction_id, updated_auction)
            }
            
            # Emit bid event
            :telemetry.execute([:foundation, :mabeam, :economics, :bid_placed], %{
              amount: bid_spec.amount
            }, %{
              auction_id: auction_id,
              agent_id: agent_id,
              auction_type: auction_info.type
            })
            
            {:reply, :ok, new_state}
            
          {:error, reason} ->
            {:reply, {:error, reason}, state}
        end
    end
  end
  
  def handle_call({:get_auction_status, auction_id}, _from, state) do
    case Map.get(state.active_auctions, auction_id) do
      nil ->
        {:reply, {:error, :not_found}, state}
        
      auction_info ->
        status = build_auction_status(auction_info)
        {:reply, {:ok, status}, state}
    end
  end
  
  def handle_call({:get_reputation, agent_id}, _from, state) do
    reputation = Map.get(state.agent_reputations, agent_id, default_reputation())
    {:reply, {:ok, reputation}, state}
  end
  
  def handle_call({:get_market_price, resource_type}, _from, state) do
    price = Map.get(state.market_prices, resource_type, %{price: 1.0, confidence: 0.5})
    {:reply, {:ok, price}, state}
  end
  
  def handle_cast({:update_performance, agent_id, performance_data}, state) do
    current_reputation = Map.get(state.agent_reputations, agent_id, default_reputation())
    updated_reputation = update_reputation(current_reputation, performance_data)
    
    new_state = %{state |
      agent_reputations: Map.put(state.agent_reputations, agent_id, updated_reputation)
    }
    
    {:noreply, new_state}
  end
  
  # Handle auction timeouts
  def handle_info({:auction_timeout, auction_id}, state) do
    case Map.get(state.active_auctions, auction_id) do
      nil ->
        {:noreply, state}
        
      auction_info ->
        # Determine auction winner
        winner_info = determine_auction_winner(auction_info)
        
        # Update auction status
        completed_auction = %{auction_info |
          status: :completed,
          winner: winner_info,
          completed_at: DateTime.utc_now()
        }
        
        # Notify participants
        notify_auction_participants(completed_auction)
        
        # Update economic history
        history_record = create_history_record(completed_auction)
        
        new_state = %{state |
          active_auctions: Map.put(state.active_auctions, auction_id, completed_auction),
          economic_history: [history_record | Enum.take(state.economic_history, 999)]
        }
        
        # Emit completion telemetry
        :telemetry.execute([:foundation, :mabeam, :economics, :auction_completed], %{
          participants: length(auction_info.participants),
          winning_bid: winner_info[:amount] || 0
        }, %{
          auction_type: auction_info.type,
          resource_type: auction_info.resource
        })
        
        {:noreply, new_state}
    end
  end
  
  def handle_info(:update_reputations, state) do
    # Periodic reputation decay and normalization
    updated_reputations = 
      state.agent_reputations
      |> Enum.map(fn {agent_id, reputation} ->
        {agent_id, decay_reputation(reputation)}
      end)
      |> Map.new()
    
    new_state = %{state | agent_reputations: updated_reputations}
    {:noreply, new_state}
  end
  
  def handle_info(:update_market_prices, state) do
    # Update market prices based on recent auction data
    updated_prices = calculate_market_prices(state.economic_history)
    
    new_state = %{state | market_prices: updated_prices}
    {:noreply, new_state}
  end
  
  # Private implementation
  defp validate_auction_spec(auction_spec) do
    required_fields = [:type, :resource, :starting_price, :duration, :creator]
    
    case Enum.find(required_fields, fn field -> not Map.has_key?(auction_spec, field) end) do
      nil ->
        if auction_spec.type in [:english, :dutch, :sealed_bid, :vickrey, :combinatorial] do
          :ok
        else
          {:error, :invalid_auction_type}
        end
        
      missing_field ->
        {:error, {:missing_field, missing_field}}
    end
  end
  
  defp validate_bid(bid_spec, auction_info, agent_id, state) do
    cond do
      not Map.has_key?(bid_spec, :amount) ->
        {:error, :missing_bid_amount}
        
      bid_spec.amount <= 0 ->
        {:error, :invalid_bid_amount}
        
      auction_info.type == :english and not valid_english_bid?(bid_spec, auction_info) ->
        {:error, :bid_too_low}
        
      agent_reputation_too_low?(agent_id, state) ->
        {:error, :insufficient_reputation}
        
      true ->
        :ok
    end
  end
  
  defp valid_english_bid?(bid_spec, auction_info) do
    current_highest = 
      auction_info.bids
      |> Enum.map(& &1.amount)
      |> Enum.max(fn -> auction_info.starting_price end)
    
    bid_spec.amount > current_highest
  end
  
  defp agent_reputation_too_low?(agent_id, state) do
    reputation = Map.get(state.agent_reputations, agent_id, default_reputation())
    reputation.overall_score < 0.3
  end
  
  defp determine_auction_winner(auction_info) do
    case auction_info.type do
      :english ->
        # Highest bid wins
        auction_info.bids
        |> Enum.max_by(& &1.amount, fn -> nil end)
        
      :dutch ->
        # First bid wins
        auction_info.bids
        |> Enum.min_by(& &1.timestamp, fn -> nil end)
        
      :vickrey ->
        # Second-price auction
        sorted_bids = Enum.sort_by(auction_info.bids, & &1.amount, :desc)
        
        case sorted_bids do
          [highest, second | _] ->
            %{highest | winning_price: second.amount}
            
          [only_bid] ->
            %{only_bid | winning_price: auction_info.reserve_price}
            
          [] ->
            nil
        end
        
      :sealed_bid ->
        # Highest sealed bid wins
        auction_info.bids
        |> Enum.max_by(& &1.amount, fn -> nil end)
        
      :combinatorial ->
        # Complex optimization for bundle bids
        optimize_combinatorial_auction(auction_info.bids)
    end
  end
  
  defp default_reputation do
    %{
      overall_score: 0.7,
      reliability: 0.7,
      performance: 0.7,
      cost_efficiency: 0.7,
      cooperation: 0.7,
      history_length: 0,
      last_updated: DateTime.utc_now()
    }
  end
  
  defp update_reputation(current_reputation, performance_data) do
    # Multi-dimensional reputation update
    %{current_reputation |
      reliability: update_reliability(current_reputation.reliability, performance_data),
      performance: update_performance_score(current_reputation.performance, performance_data),
      cost_efficiency: update_cost_efficiency(current_reputation.cost_efficiency, performance_data),
      cooperation: update_cooperation(current_reputation.cooperation, performance_data),
      history_length: current_reputation.history_length + 1,
      last_updated: DateTime.utc_now()
    }
    |> recalculate_overall_score()
  end
  
  defp recalculate_overall_score(reputation) do
    overall = (reputation.reliability * 0.3 +
               reputation.performance * 0.3 +
               reputation.cost_efficiency * 0.2 +
               reputation.cooperation * 0.2)
    
    %{reputation | overall_score: overall}
  end
  
  defp initialize_anti_gaming do
    %{
      bid_frequency_limits: %{},
      reputation_manipulation_detection: %{},
      collusion_detection: %{}
    }
  end
  
  defp generate_auction_id do
    :crypto.strong_rand_bytes(12) |> Base.encode16(case: :lower)
  end
end

defmodule Foundation.MABEAM.Telemetry do
  @moduledoc """
  Comprehensive telemetry and monitoring for MABEAM operations
  """
  
  def setup_telemetry do
    :telemetry.attach_many(
      "foundation-mabeam-telemetry",
      [
        [:foundation, :mabeam, :agent, :registered],
        [:foundation, :mabeam, :agent, :deregistered],
        [:foundation, :mabeam, :coordination, :started],
        [:foundation, :mabeam, :coordination, :complete],
        [:foundation, :mabeam, :economics, :auction_created],
        [:foundation, :mabeam, :economics, :bid_placed],
        [:foundation, :mabeam, :economics, :auction_completed],
        [:foundation, :mabeam, :registry, :performance]
      ],
      &handle_telemetry_event/4,
      nil
    )
  end
  
  def handle_telemetry_event(event, measurements, metadata, _config) do
    case event do
      [:foundation, :mabeam, :registry, :performance] ->
        record_registry_performance(measurements, metadata)
        
      [:foundation, :mabeam, :coordination, :complete] ->
        record_coordination_performance(measurements, metadata)
        
      [:foundation, :mabeam, :economics, :auction_completed] ->
        record_economic_activity(measurements, metadata)
        
      _ ->
        log_telemetry_event(event, measurements, metadata)
    end
  end
  
  defp record_registry_performance(measurements, _metadata) do
    # Record registry performance metrics
    :prometheus_gauge.set(
      :mabeam_registry_agent_count,
      measurements.total_agents
    )
    
    :prometheus_gauge.set(
      :mabeam_registry_healthy_agents,
      measurements.healthy_agents
    )
    
    :prometheus_histogram.observe(
      :mabeam_registry_response_time,
      measurements.avg_response_time
    )
  end
  
  defp record_coordination_performance(measurements, metadata) do
    :prometheus_histogram.observe(
      :mabeam_coordination_duration,
      [protocol: metadata.protocol],
      measurements.duration_us / 1000
    )
    
    :prometheus_counter.inc(
      :mabeam_coordination_total,
      [protocol: metadata.protocol, result: metadata.result]
    )
  end
  
  defp record_economic_activity(measurements, metadata) do
    :prometheus_counter.inc(
      :mabeam_auctions_completed,
      [type: metadata.auction_type]
    )
    
    :prometheus_histogram.observe(
      :mabeam_auction_participation,
      measurements.participants
    )
    
    if measurements.winning_bid > 0 do
      :prometheus_histogram.observe(
        :mabeam_auction_winning_bids,
        [type: metadata.auction_type],
        measurements.winning_bid
      )
    end
  end
end

defmodule Foundation.MABEAM.Performance do
  @moduledoc """
  Performance optimization patterns for MABEAM operations
  """
  
  # ETS read optimization
  def optimized_agent_lookup(agent_id) when is_binary(agent_id) do
    # Direct ETS read - microsecond latency
    case :ets.lookup(:mabeam_agents_main, agent_id) do
      [{^agent_id, agent_info}] -> {:ok, agent_info}
      [] -> {:error, :not_found}
    end
  end
  
  # Bulk operations optimization
  def bulk_agent_lookup(agent_ids) when is_list(agent_ids) do
    # Parallel ETS reads
    agent_ids
    |> Task.async_stream(&optimized_agent_lookup/1, max_concurrency: System.schedulers_online())
    |> Enum.map(fn {:ok, result} -> result end)
  end
  
  # Capability index optimization
  def fast_capability_search(capability, limit \\ 100) do
    :ets.select(:mabeam_capability_index, [
      {{{capability, :"$1"}, :"$2"}, [], [:"$1"]}
    ], limit)
  end
  
  # Memory-efficient batch operations
  def batch_update_health_status(health_updates) do
    # Prepare batch updates
    updates = Enum.map(health_updates, fn {agent_id, health_info} ->
      {agent_id, health_info}
    end)
    
    # Atomic batch insert
    :ets.insert(:mabeam_health_index, updates)
  end
end