defmodule SuperintelligenceWeb.ChatController do
  use SuperintelligenceWeb, :controller
  
  alias Superintelligence.Conversations
  alias Superintelligence.AIAgent

  @doc """
  List all conversations
  """
  def index(conn, _params) do
    conversations = Conversations.list_conversations()
    json(conn, %{conversations: conversations})
  end

  @doc """
  Get a specific conversation with messages
  """
  def show(conn, %{"id" => id}) do
    case Conversations.get_conversation(id) do
      {:ok, conversation} ->
        messages = Conversations.list_messages(id)
        json(conn, %{
          conversation: conversation,
          messages: messages
        })
      
      {:error, :not_found} ->
        conn
        |> put_status(:not_found)
        |> json(%{error: "Conversation not found"})
    end
  end

  @doc """
  Create a new conversation
  """
  def create(conn, %{"title" => title}) do
    case Conversations.create_conversation(%{title: title}) do
      {:ok, conversation} ->
        conn
        |> put_status(:created)
        |> json(%{conversation: conversation})
      
      {:error, reason} ->
        conn
        |> put_status(:unprocessable_entity)
        |> json(%{error: reason})
    end
  end

  @doc """
  Send a message in a conversation
  """
  def send_message(conn, %{"conversation_id" => conversation_id, "message" => message_params}) do
    with {:ok, _conversation} <- Conversations.get_conversation(conversation_id),
         {:ok, user_message} <- Conversations.create_message(conversation_id, %{
           role: "user",
           content: message_params["content"]
         }) do
      
      # Process with AI agent asynchronously
      Task.start(fn ->
        process_ai_response(conversation_id, message_params["content"])
      end)
      
      json(conn, %{message: user_message})
    else
      {:error, :not_found} ->
        conn
        |> put_status(:not_found)
        |> json(%{error: "Conversation not found"})
      
      {:error, reason} ->
        conn
        |> put_status(:unprocessable_entity)
        |> json(%{error: reason})
    end
  end

  @doc """
  Generate a visualization
  """
  def generate_visualization(conn, %{"type" => type, "data" => data}) do
    visualization = case type do
      "chart" ->
        %{
          type: "chart",
          data: %{
            type: data["chart_type"] || "bar",
            labels: data["labels"] || ["A", "B", "C", "D", "E"],
            values: data["values"] || Enum.map(1..5, fn _ -> :rand.uniform(100) end)
          }
        }
      
      "graph" ->
        %{
          type: "graph",
          data: %{
            nodes: data["nodes"] || generate_sample_nodes(),
            edges: data["edges"] || generate_sample_edges()
          }
        }
      
      "custom" ->
        %{
          type: "custom",
          data: %{
            commands: data["commands"] || []
          }
        }
      
      _ ->
        %{type: "unknown", data: %{}}
    end
    
    json(conn, %{visualization: visualization})
  end

  defp process_ai_response(conversation_id, user_message) do
    # Here you would integrate with your AI agent
    # For now, we'll use a simple mock response
    
    Process.sleep(1000) # Simulate processing time
    
    response = generate_ai_response(user_message)
    
    Conversations.create_message(conversation_id, %{
      role: "assistant",
      content: response.content,
      metadata: response.metadata
    })
  end

  defp generate_ai_response(message) do
    cond do
      String.contains?(String.downcase(message), ["chart", "graph", "visualiz"]) ->
        %{
          content: "I'll create a visualization for you. Here's a chart showing your data:",
          metadata: %{
            visualization: %{
              type: "chart",
              data: %{
                type: "bar",
                labels: ["Q1", "Q2", "Q3", "Q4"],
                values: Enum.map(1..4, fn _ -> :rand.uniform(100) end)
              }
            }
          }
        }
      
      String.contains?(String.downcase(message), "hello") ->
        %{
          content: "Hello! I'm your AI assistant. How can I help you today?",
          metadata: %{}
        }
      
      true ->
        %{
          content: "I understand. Let me help you with that. What specific information do you need?",
          metadata: %{}
        }
    end
  end

  defp generate_sample_nodes do
    Enum.map(1..5, fn i ->
      %{
        id: "node#{i}",
        label: "Node #{i}",
        x: :rand.uniform(300),
        y: :rand.uniform(300)
      }
    end)
  end

  defp generate_sample_edges do
    [
      %{source: "node1", target: "node2"},
      %{source: "node2", target: "node3"},
      %{source: "node3", target: "node4"},
      %{source: "node4", target: "node5"},
      %{source: "node5", target: "node1"}
    ]
  end
end