/******************************************************************************
*	File		-	component_guis.cpp
*	Author		-	Joey Pollack
*	Date		-	2022/06/01 (y/m/d)
*	Mod Date	-	2022/06/01 (y/m/d)
*	Description	-	Functions to render component editing GUIs
******************************************************************************/

#include "component_guis.h"
#include <editor/editor.h>
#include <utils/logger.h>
#include <gui/imgui_ext.h>
#include <dearimgui/imgui.h>
#include <dearimgui/imgui_internal.h>

namespace lunarium { namespace editor
{
    /////////////////////////////////////////////////////////////////////
    //				COMMON SECTIONS
    /////////////////////////////////////////////////////////////////////
    static void DrawTitle(std::string title)
    {
        ImVec2 top_left(ImGui::GetWindowPos().x, ImGui::GetCursorScreenPos().y - ImGui::GetStyle().FramePadding.y);
        ImVec2 bot_right(top_left.x + ImGui::GetWindowSize().x, ImGui::GetCursorScreenPos().y + ImGui::GetFrameHeight());
        //ImU32 color = ImGui::ColorConvertFloat4ToU32(ImVec4(0.1f, 0.3f, 0.8f, 1.0f));
        ImU32 color = ImGui::ColorConvertFloat4ToU32(ImVec4(0.3f, 0.3f, 0.3f, 1.0f));
        ImGui::GetWindowDrawList()->AddRectFilled(top_left, bot_right, color);
        ImGuiExt::TextCentered(title.c_str());
    }

    void CompGui::RenderTagComp(TagComponent& comp)
    {
        DrawTitle("Tag Component");

        ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(3.0f, ImGui::GetStyle().ItemSpacing.y));
        const int BUFFER_SIZE = 256;
        static char buffer[BUFFER_SIZE] = "";
        ImGui::Text("Tag Info");
        ImGui::SameLine();
        strcpy(buffer, comp.Info.c_str());
        ImGui::InputText("##Tag", buffer, BUFFER_SIZE);
        comp.Info = buffer;
        ImGui::PopStyleVar();
        
    }

    /// This code taken from the Hazel engine
    /// https://github.com/TheCherno/Hazel/blob/master/Hazelnut/src/Panels/SceneHierarchyPanel.cpp
    void CompGui::RenderTransformComp(TransformComponent& comp)
    {
        ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(ImGui::GetStyle().ItemSpacing.x, ImGui::GetStyle().ItemSpacing.y + 10.0f));
        DrawTitle("Transform Component");
        ImGui::PopStyleVar();
        
        ImGuiExt::Vec2Control("Translation", comp.Position, 0.0f, 85.0f);
        glm::vec3 rotation = glm::degrees(comp.Rotation);
        //ImGuiExt::Vec3Control("Rotation", rotation, 0.0f, 85.0f);
        ImGuiExt::FloatControl("Rotation", rotation.z, 0.0f, 85.0f);
        comp.Rotation = glm::radians(rotation);
        ImGuiExt::Vec2Control("Scale", comp.Scale, 1.0f, 85.0f);
    }

    
    void CompGui::RenderVelocityComp(VelocityComponent& comp)
    {
        ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(ImGui::GetStyle().ItemSpacing.x, ImGui::GetStyle().ItemSpacing.y + 10.0f));
        DrawTitle("Velocity Component");
        ImGui::PopStyleVar();

        ImGuiExt::Vec2Control("Velocity", comp.Velocity, 0.0f, 85.0f);
    }

    
    void CompGui::RenderCameraComp(CameraComponent& comp)
    {
        ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(ImGui::GetStyle().ItemSpacing.x, ImGui::GetStyle().ItemSpacing.y + 10.0f));
        DrawTitle("Camera Component");
        ImGui::PopStyleVar();

        glm::vec3 pos = comp.Camera.GetPosition();
        if (ImGuiExt::Vec2Control("Position", pos))
        {
            comp.Camera.SetPosition(pos);
        }

        float rot = comp.Camera.GetRotation();
        ImGui::Text("Rotation Angle: ");
        ImGui::SameLine();
        if (ImGui::DragFloat("##rotation", &rot, 0.5f, 0.0f, 360.0f))
        {
            comp.Camera.SetRotation(rot);
        }
    }
}}