main.cpp

/*
** Top Class Uniforms application entry point (main.cpp)
**
*************************************************************************
** MIT License
**
** Copyright (c) 2019 Mthandazo J.J. Ncube, Ropafadzo Siziba, Bruce Chimoyo, Kennedy J.J. Maturure,  Alec Musasa, Wallis T. Makurumidze
**
** Permission is hereby granted, free of charge, to any person obtaining a copy
** of this softwareand 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 noticeand 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.
**
*************************************************************************
** Project Details:
**
** National University of Science and Technology
** SCS2104 Structured System Analysis and Design 2019
** Group 4: Mthandazo, Ropafadzo, Bruce, Kennedy, Alec, Wallis
*/

#include "tcu_newuser/tcu_newuser.h"
#include "tcu_login/tcu_login.h"
#include "tcu_main/tcu_main.h"
#include "tcu_db/tcu_db.h"
#include "resource.h"

// gui app using main
#pragma comment(linker, "/SUBSYSTEM:windows /ENTRY:mainCRTStartup")

int main() {
	// constants used by the app
	const std::string guid_app = "{9D4B5BF2-EA54-4BD3-8DC8-C779568F8A86}";	// allow only one instance of the app
	const std::string guid_form = "{667CA548-0583-460F-A775-9772299955C5}";	// to bring existing form to the foreground if a new instance is attempted

	auto on_error = [&](gui& ui, const std::string& error) {
		gui::prompt_params params;
		params.type = gui::prompt_type::ok;
		params.png_icon_resource = png_error;
		ui.prompt(params, "Error", error);
	};

	// application state object
	state app_state;

	// login form
	tcu_login login(guid_app, app_state);

	// connect to the database
	std::string error;
	if (!app_state.get_db().connect("database.dbs", "ah&Nns56b", error)) {
		on_error(login, error);
		return 1;
	}

	// check if there are any users in the database
	std::vector<tcu_db::credentials> users;
	if (app_state.get_db().get_users(users, error)) {
		on_error(login, error);
		return 1;
	}
	
	if (users.empty()) {
		// new user form
		tcu_newuser newuser(guid_app, app_state);

		// run new user
		if (!newuser.run(error)) {
			on_error(newuser, error);
			return 1;
		}

		if (app_state.get_db().get_users(users, error)) {
			on_error(login, error);
			return 1;
		}

		if (users.empty()) return 0;
	}

	// run login
	if (!login.run(guid_form, error)) {
		on_error(login, error);
		return 1;
	}

	if (app_state.loggedin()) {
		// main form
		tcu_gui app(guid_app, app_state);

		// run form
		if (!app.run(guid_form, error)) {
			on_error(app, error);
			return 1;
		}
	}

	return 0;
}