// MIT License
// 
// Copyright (C) 2018-2023, Tellusim Technologies Inc. https://tellusim.com/
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

#include <common/common.h>
#include <format/TellusimXml.h>
#include <platform/TellusimDevice.h>
#include <platform/TellusimCommand.h>
#include <interface/TellusimCanvas.h>

/*
 */
using namespace Tellusim;

/*
 */
TS_INLINE Matrix4x4f get_transform(const String &src) {
	float32_t m[16];
	if(src.scanf("matrix(%f,%f,%f,%f,%f,%f)", &m[0], &m[1], &m[2], &m[3], &m[4], &m[5]) == 6) {
		return Matrix4x4f(m, 6, false);
	}
	return Matrix4x4f::identity;
}

/*
 */
int32_t main(int32_t argc, char **argv) {
	
	DECLARE_WINDOW
	if(!window) return 1;
	
	// create window
	String title = String::format("%s Tellusim::SVG", window.getPlatformName());
	if(!window.create(title, Window::DefaultFlags | Window::FlagMultisample4) || !window.setHidden(false)) return 1;
	
	// create device
	Device device(window);
	if(!device) return 1;
	
	// create canvas
	Canvas canvas;
	canvas.setViewport(window.getWidth(), window.getHeight());
	
	// SVG shapes
	Xml xml;
	uint32_t order = 0;
	Canvas svg_canvas(&canvas);
	if(!xml.load("tellusim.svg")) return 1;
	for(const Xml &child : xml.getChildren()) {
		
		if(child.getName() != "g") continue;
		
		// group transform
		Matrix4x4f transform = get_transform(child.getAttribute("transform"));
		
		for(const Xml &xml : child.getChildren()) {
			if(xml.getName() != "g") continue;
			if(!xml.isChild("path")) continue;
			if(!xml.isAttribute("style")) continue;
			
			// group path
			const Xml path = xml.getChild("path");
			if(!path.isAttribute("d")) continue;
			
			// group style
			String style = xml.getAttribute("style");
			if(style == "display:inline") style = path.getAttribute("style");
			uint32_t pos = style.find("fill:");
			if(pos == Maxu32) continue;
			
			// create shape
			CanvasShape shape(svg_canvas);
			if(!shape.createSVG(path.getAttribute("d").get())) return 1;
			
			// shape transform
			shape.setTransform(transform * get_transform(xml.getAttribute("transform")));
			
			// shape color
			shape.setColor(Color(style.substring(pos + 5).toRGBAu8()));
			
			// shape order
			shape.setOrder(order++);
		}
	}
	
	// create target
	Target target = device.createTarget(window);
	
	// main loop
	DECLARE_GLOBAL
	window.run([&]() -> bool {
		DECLARE_COMMON
		
		Window::update();
		
		if(!window.render()) return false;
		
		// update canvas
		Matrix4x4f transform = Matrix4x4f::identity;
		transform *= Matrix4x4f::translate(canvas.getWidth() * 0.5f, canvas.getHeight() * 0.5f, 0.0f);
		transform *= Matrix4x4f::scale(Vector3f(1.0f, -1.0f, 1.0f) * canvas.getHeight() * 0.5f);
		transform *= Matrix4x4f::perspective(40.0f, 1.0f, 1.0f, 10000.0f);
		transform *= Matrix4x4f::lookAt(Vector3f(0.0f, 0.0f, 1000.0f), Vector3f::zero, Vector3f(0.0f, 1.0f, 0.0f));
		transform *= Matrix4x4f::rotateY(Tellusim::sin(time) * 16.0f);
		transform *= Matrix4x4f::rotateZ(Tellusim::cos(time) * 8.0f);
		transform *= Matrix4x4f::translate(-300.0f, -300.0f, 0.0f);
		
		svg_canvas.setTransform(transform);
		
		// create canvas
		if(!canvas.create(device, target)) return false;
		
		// window target
		target.setClearColor(0.2f, 0.2f, 0.2f, 1.0f);
		target.begin();
		{
			// create command list
			Command command = device.createCommand(target);
			
			// draw canvas
			canvas.draw(command, target);
		}
		target.end();
		
		if(!window.present()) return false;
		
		if(!device.check()) return false;
		
		return true;
	});
	
	// finish context
	window.finish();
	
	return 0;
}