#include <CPUSettings.hpp>
#include <Options.hpp>
#include <Log.hpp>
#include <imgui.h>

CPUSettings::CPUSettings() {
  if (Options::GetInstance().GetValue<std::string>("cpu", "type") == "jit") {
    selectedCpuTypeIndex = 1;
  } else {
    selectedCpuTypeIndex = 0;
  }
}

void CPUSettings::render() {
  const char* items[] = {
    "Interpreter",
    "Dynamic Recompiler"
  };

  const char* combo_preview_value = items[selectedCpuTypeIndex];
  if (ImGui::BeginCombo("CPU Type", combo_preview_value)) {
    for (int n = 0; n < IM_ARRAYSIZE(items); n++) {      
      const bool is_selected = (selectedCpuTypeIndex == n);
      if (ImGui::Selectable(items[n], is_selected)) {
        selectedCpuTypeIndex = n;
        modified = true;
      }
      
      // Set the initial focus when opening the combo (scrolling + keyboard navigation focus)
      if (is_selected)
        ImGui::SetItemDefaultFocus();
    }
    ImGui::EndCombo();
  }

  if(modified) {
    if(selectedCpuTypeIndex == 0) {
      Options::GetInstance().SetValue<std::string>("cpu", "type", "interpreter");
    } else {
      Options::GetInstance().SetValue<std::string>("cpu", "type", "jit");
    }
  }
}