// IAEngine: 2D Game Engine by IA
// Copyright (C) 2025 IASoft (PVT) LTD (oss@iasoft.dev)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

#include <IAEngine/IAEngine.hpp>
#include <RenderCore/RenderCore.hpp>
#include <SDL3/SDL.h>

#include <Vendor/imgui/backends/imgui_impl_sdl3.h>
#include <Vendor/imgui/backends/imgui_impl_sdlgpu3.h>

#include <UI.hpp>

#include <View/AssetBrowser.hpp>

namespace ia::iae
{
    EXTERN IVec2 g_windowExtent;
    EXTERN RDC_Texture *g_gamePreviewTexture;

    View_AssetBrowser g_assetBrowserView;

    VOID UI::Initialize()
    {
        g_assetBrowserView.Initialize();
    }

    VOID UI::Terminate()
    {
        g_assetBrowserView.Terminate();
    }

    VOID UI::Update()
    {
    }

    VOID UI::Draw()
    {
        ImVec2 gamePreviewViewSize = {(FLOAT32) gamePreviewResolution.x, (FLOAT32) gamePreviewResolution.y};

        { // Scene Nodes View
            ImGui::Begin("Nodes", nullptr,
                         ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoCollapse);
            ImGui::SetWindowPos({0.0f, 0.0f});
            ImGui::SetWindowSize({g_windowExtent.x / 2.0f - gamePreviewViewSize.x / 2.0f, gamePreviewViewSize.y + 35});
            ImGui::End();
        }

        { // Scene View
            ImGui::Begin("Scene", nullptr,
                         ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoCollapse);
            ImGui::SetWindowPos({g_windowExtent.x / 2.0f - gamePreviewViewSize.x / 2.0f, 0.0f});
            ImGui::Image(g_gamePreviewTexture->GetHandle(), gamePreviewViewSize);
            ImGui::End();
        }

        { // Properties View
            ImGui::Begin("Properties", nullptr,
                         ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoCollapse);
            ImGui::SetWindowSize(
                {g_windowExtent.x / 2.0f - gamePreviewViewSize.x / 2.0f - 15.0f, gamePreviewViewSize.y + 35});
            ImGui::SetWindowPos({g_windowExtent.x - ImGui::GetWindowSize().x, 0.0f});
            ImGui::End();
        }

        { // Asset Browser View
            ImGui::Begin("Asset Browser", nullptr,
                         ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoCollapse);
            ImGui::SetWindowPos({0.0f, gamePreviewViewSize.y + 35});
            ImGui::SetWindowSize({(FLOAT32) g_windowExtent.x, (FLOAT32) g_windowExtent.y - gamePreviewViewSize.y - 35});
            g_assetBrowserView.Render();
            ImGui::End();
        }
    }
} // namespace ia::iae::editor