#include "EditorResources.hpp"

#include "EditorAttachmentImpl.hpp"
#include "EditorCore.hpp"
#include "EditorInspector.hpp"
#include "EditorNotification.hpp"
#include "EditorUtils.hpp"
#include "Shader.hpp"

#include <imgui.h>

EditorContentBrowser::EditorContentBrowser(EditorInspector* inspector)
	: mInspector{ inspector } {
}

void EditorContentBrowser::Show() {
	if (visible) {
		ImGuiWindowFlags windowFlags;
		if (docked) {
			// Center window horizontally, align bottom  vertically
			auto& viewportSize = ImGui::GetMainViewport()->Size;
			ImGui::SetNextWindowPos(ImVec2(viewportSize.x / 2, viewportSize.y), ImGuiCond_Always, ImVec2(0.5f, 1.0f));
			ImGui::SetNextWindowSizeRelScreen(0.8f, 0.5f);
			windowFlags = ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse;
		} else {
			windowFlags = 0;
		}
		ImGui::Begin("Content Browser", &visible, windowFlags);

		ImGui::Splitter(true, kSplitterThickness, &splitterLeft, &splitterRight, kLeftPaneMinWidth, kRightPaneMinWidth);

		ImGui::BeginChild("LeftPane", ImVec2(splitterLeft - kPadding, 0.0f));

		if (ImGui::Selectable("Settings", mPane == P_Settings)) {
			mPane = P_Settings;
		}
		if (ImGui::Selectable("Shaders", mPane == P_Shader)) {
			mPane = P_Shader;
		}

		ImGui::EndChild(); // Window "LeftPane"

		ImGui::SameLine(0.0f, kPadding + kSplitterThickness + kPadding);
		ImGui::BeginChild("RightPane"); // Fill remaining space

		switch (mPane) {
			case P_Settings: {
				ImGui::Checkbox("Docked", &docked);
			} break;

			case P_Shader: {
				auto& shaders = ShaderManager::instance->GetShaders();
				for (auto it = shaders.begin(); it != shaders.end(); ++it) {
					auto name = it.key();
					auto shader = it.value().Get();

					shader->GatherDetailsIfAbsent();
					auto details = shader->GetDetails();
					auto ea = static_cast<EaShader*>(shader->GetEditorAttachment());

					if (ImGui::Selectable(name, mInspector->GetCurrentTarget() == ea)) {
						mInspector->SetCurrentTarget(ea);
					}
				}
			} break;
		}

		ImGui::EndChild(); // Window "RightPane"

		ImGui::End();
	}
}