/* Copyright 2022, Michele Santullo
 * This file is part of duckticker.
 *
 * Wrenpp 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.
 *
 * Wrenpp 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 duckticker.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "bitcoinity_ticker_price.hpp"
#include "configure.hpp"
#include <wrenpp/vm_fun.hpp>
#include <wrenpp/def_configuration.hpp>
#include <fstream>

namespace {
class MyWrenConfiguration : public wren::DefConfiguration {
public:
	char* load_module_fn(wren::VM* vm, std::string_view module_name) {
		std::string_view wren_code;

		if (module_name == "bitcoinity")
			wren_code = duck::g_bitcoinity_wren_module;
		else if (module_name == "ticker_price")
			wren_code = duck::g_ticker_price_wren_module;
		else
			return nullptr;

		const std::size_t buff_sz = wren_code.size();
		char* const buff = static_cast<char*>(MyWrenConfiguration::reallocate_fn(nullptr, buff_sz));
		std::copy(wren_code.cbegin(), wren_code.cend(), buff);
		return buff;
	}
};

std::string load_string_from_file (const std::string& path) {
	std::ifstream ifs(path);
	ifs >> std::noskipws;

	return std::string(
		std::istreambuf_iterator<char>(ifs),
		std::istreambuf_iterator<char>()
	);
}
} //unnamed namespace

int main() {
	using duck::TickerPrice;

	MyWrenConfiguration config;
	wren::VM vm(&config, nullptr);

	duck::register_bitcoinity_to_wren(vm);

	std::string main_script = load_string_from_file(std::string{duck::g_script_path} + "main.wren");
	vm.interpret("main", main_script.c_str());
	wren::call<void>(vm, {"main", "the_app"}, "start");

	return 0;
}