defmodule Raxol.Benchmark.CompetitorSuite do
  @moduledoc """
  Benchmark suite for comparing Raxol against competitor terminal emulators.

  This is a simplified version that avoids DSL compilation issues.
  """

  alias Raxol.Core.Runtime.Log
  alias Raxol.Terminal.Emulator

  # Competitors data for reference and reporting
  @competitors %{
    raxol: %{
      name: "Raxol",
      type: :native,
      language: "Elixir",
      gpu_accelerated: false
    },
    alacritty: %{
      name: "Alacritty",
      type: :simulated,
      language: "Rust",
      gpu_accelerated: true,
      expected_performance: %{
        parser: 5.0,
        memory: 15.0,
        startup: 50.0
      }
    },
    kitty: %{
      name: "Kitty",
      type: :simulated,
      language: "Python/C",
      gpu_accelerated: true,
      expected_performance: %{
        parser: 4.0,
        memory: 25.0,
        startup: 40.0
      }
    }
  }

  @doc """
  Run competitor comparison benchmarks.
  """
  def run_benchmarks(opts \\ []) do
    Log.console("Running competitor comparison benchmarks...")

    # Run parser benchmarks
    parser_results = run_parser_benchmarks(opts)

    # Generate comparison report
    report = generate_comparison_report(parser_results)

    {:ok, report}
  end

  @doc """
  Calculate performance scores.
  """
  def calculate_performance_score(results) do
    Map.new(results, fn {name, timings} ->
      # Simple scoring based on average timing
      avg = Enum.sum(timings) / length(timings)
      # Convert to score (higher is better)
      score = 100 / (1 + avg / 1000)
      {name, score}
    end)
  end

  @doc """
  Generate comparison report.
  """
  def generate_comparison_report(results) do
    %{
      summary: "Benchmark comparison complete",
      results: results,
      competitors: @competitors,
      timestamp: DateTime.utc_now()
    }
  end

  # Private functions

  defp run_parser_benchmarks(_opts) do
    emulator = Emulator.new(80, 24)

    benchmarks = %{
      "plain_text" => fn ->
        # Simplified benchmark - just process the input
        Emulator.process_input(
          emulator,
          "The quick brown fox jumps over the lazy dog"
        )
      end,
      "ansi_colors" => fn ->
        Emulator.process_input(
          emulator,
          "\e[31mRed \e[32mGreen \e[34mBlue \e[0mNormal"
        )
      end,
      "cursor_movement" => fn ->
        Emulator.process_input(emulator, "\e[10;20H\e[2J\e[K\e[5A\e[3B")
      end
    }

    # Run each benchmark
    Map.new(benchmarks, fn {name, fun} ->
      timings =
        for _ <- 1..100 do
          {time, _} = :timer.tc(fun)
          time
        end

      {name, timings}
    end)
  end
end
