#include "RegisterView.h"

#include "imgui.h"
#include "../Interpreter/MachineState.h"

RegisterView::RegisterView(
    std::shared_ptr<Graphics> graphics,
    std::shared_ptr<MachineState> machine_state,
    std::shared_ptr<CallbackManager> callback_manager) :
    graphics{std::move(graphics)},
    machine_state{std::move(machine_state)},
    callback_manager{std::move(callback_manager)}
{
}

void RegisterView::render()
{
    if (ImGui::Begin("Chip8 - Registers"))
    {
        if (ImGui::BeginTable("Registers", 4, ImGuiTableFlags_Borders))
        {
            ImGui::TableNextRow();

            ImGui::TableSetColumnIndex(0);
            ImGui::Text("PC");
            ImGui::Text("0x%04X", this->machine_state->pc);
            ImGui::TableSetColumnIndex(1);
            ImGui::Text("I");
            ImGui::Text("0x%02X", this->machine_state->i);

            ImGui::TableSetColumnIndex(2);
            ImGui::Text("DT");
            ImGui::Text("0x%04X", this->machine_state->dt);

            ImGui::TableSetColumnIndex(3);
            ImGui::Text("ST");
            ImGui::Text("0x%04X", this->machine_state->st);
        }
        ImGui::EndTable();

        if (ImGui::BeginTable("Registers", 8, ImGuiTableFlags_Borders))
        {
            for (int i = 0; i < 2; i++)
            {
                ImGui::TableNextRow();
                for (int j = 0; j < 8; j++)
                {
                    ImGui::TableSetColumnIndex(j);
                    ImGui::Text("V%i", i * 8 + j);
                    ImGui::Text("0x%02X", this->machine_state->v[i * 8 + j]);
                }
            }
        }
        ImGui::EndTable();
    }
    ImGui::End();
}