#include "App.hpp"

#include <cassert>

#include <EGL/egl.h>
#include <GLES3/gl3.h>
#include <raylib.h>
#include <rlgl.h>
#include <xkbcommon/xkbcommon.h>

auto App::tick() -> void
{
	static std::pmr::string text_input_data;
	m_ime.bound_text = &text_input_data;
	m_ime.bound_id = 1;
	process_pending_text_input();

	if (!m_visible || m_gl.edpy == EGL_NO_DISPLAY
	    || m_gl.esurf == EGL_NO_SURFACE)
		return;

	glViewport(0, 0, m_win_w, m_win_h);

	if (m_kbd.is_sym_pressed(XKB_KEY_Escape)) {
		set_visible(!visible());
		if (m_kbd.ctrl() && m_kbd.shift()) {
			m_running = false;
		}
	}

	BeginDrawing();

	ClearBackground(theme().window.background);

	{
		assert(m_gui);
		u32 rune { 0 };
		if (!m_kbd.typing.empty()) {
			rune = m_kbd.typing.back();
			m_kbd.typing.clear();
		}
		ImGuiGuard gui_scope(m_gui, rune, m_kbd.ctrl(), m_kbd.shift());

		Rectangle const input_rect {
		    0.0f,
		    0.0f,
		    static_cast<float>(GetScreenWidth()),
		    static_cast<float>(GetScreenHeight()),
		};
		auto result = m_gui->text_input(1, text_input_data, input_rect);
		if (result.test(1))
			m_ime.surrounding_dirty = true;

		update_text_input_state(text_input_data, 1, input_rect);
	}

	EndDrawing();

	eglSwapBuffers(m_gl.edpy, m_gl.esurf);
	m_kbd.typing.clear();
	m_kbd.clear_transients();
}