#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>

/* TODO: check for compatibility with different implementations */
#include <curses.h>

#include "clicker-ncurses.h"

int
main (void)
{
	/* Initialize NCurses screen and get the default window, stdscr */
	if ( ! initscr() )
	{
		printf("Too little amount of memory\n");
		return 1;
	}

	/* This fixes the problem of input that shows up */
	noecho();

	/* There should be a delay between clicks
	   1 s */
	timeout(1000);

	/* Place a border with default settings (0 means default) */
	border(0, 0, 0, 0, 0, 0, 0, 0);

	/* Get window size */
	int sy, sx;
	getmaxyx(stdscr, sy, sx);

	/* Place a string onto the window in the center */
	char *name = "NCurses clicker";
	mvprintw(0, sx / 2 - strlen(name) / 2, name);

	char *help = "[ ] - click, [q]uit, [u]pgrade";
	mvprintw(sy - 2, sx / 2 - strlen(help) / 2, help);

	mvprintw(3, 1, "Score:\n");
	mvprintw(5, 1, "Points by click:\n");
	mvprintw(7, 1, "Required score to update:\n");

	/* Refresh our window to include settings above */
	refresh();

	/* Initialize the structure and set the values */
	struct game *cur_game = malloc(sizeof(struct game));
	cur_game->click = 1;
	cur_game->multiplifier = 128;

	/* The main loop that also catches user input */
	int ch = 0;
	while (ch = getch())
	{
		switch (ch)
		{
			case ' ':
				render_values(cur_game, cur_game->score + cur_game->click, cur_game->click, cur_game->multiplifier);
				break;
			case 'q':
				goto endwin;
			case 'u':
				if (cur_game->score >= cur_game->click * cur_game->multiplifier)
				{
					render_values(cur_game, 0, ++cur_game->click, cur_game->multiplifier * 2);
				}
				break;
		}

		if (cur_game->score < 0)
		{
			render_values(cur_game, 0, cur_game->click, cur_game->multiplifier);
		}
	}

	/* Remove the main window and exit */
	endwin: endwin();

	printf("You have got %d points.\n", cur_game->score);
	/* TODO: deal with memory leaks */
	free(cur_game);
	exit(EXIT_SUCCESS);
}

void
render_values (struct game *game, int score, int click, int multiplifier) 
{
	int score_len = snprintf(NULL, 0, "%d", game->score);
	for (int i = 0; i < score_len; ++i)
	{
		mvaddch(4, i + 1, ' ');
		refresh();
	}

	game->score = score;
	game->click = click;
	game->multiplifier = multiplifier;
	mvprintw(4, 1, "%d", game->score);
	mvprintw(6, 1, "%d", game->click);
	mvprintw(8, 1, "%d", game->multiplifier * game->click);
}