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#include "display.h"
#include "cardstack.h"

// Definition of ncurses color pair identifiers
#define CP_WHITE_ON_BLACK	1
#define CP_YELLOW_ON_BLACK	2
#define CP_BLUE_ON_BLACK	3
#define CP_MAGENTA_ON_BLACK	4
#define CP_RED_ON_BLACK		5

static bool colors = false;
static WINDOW *w_table_cards;
static WINDOW *w_stack_points;
static WINDOW *w_current_state;
static WINDOW *w_hand_cards;

static void draw_card(WINDOW *w, const uint8_t row, const uint8_t col, const card c)
{
	unsigned color_pair = 0;

	if (colors)
	{
		switch (card_get_points(c))
		{
			case 7:
				color_pair = CP_MAGENTA_ON_BLACK;
				break;
			case 5:
				color_pair = CP_RED_ON_BLACK;
				break;
			case 3:
				color_pair = CP_YELLOW_ON_BLACK;
				break;
			case 2:
				color_pair = CP_BLUE_ON_BLACK;
				break;
			default:
				color_pair = CP_WHITE_ON_BLACK;
		}

		wattron(w, COLOR_PAIR(color_pair));
	}

	mvwaddch(w, row, col, ACS_ULCORNER); // Upper left corner
	mvwhline(w, row, col+1, ACS_HLINE, 5); // Upper horizontal line
	mvwaddch(w, row, col+6, ACS_URCORNER); // Upper right corner
	mvwvline(w, row+1, col, ACS_VLINE, 3); // Left vertical line
	mvwvline(w, row+1, col+6, ACS_VLINE, 3); // Right vertical line
	mvwaddch(w, row+4, col, ACS_LLCORNER); // Lower left corner
	mvwhline(w, row+4, col+1, ACS_HLINE, 5); // Lower horizontal line
	mvwaddch(w, row+4, col+6, ACS_LRCORNER); // Lower right corner
	mvwprintw(w, row+1, col+1, " %3d ", c); // Card number, 3 digits wide, filled with spaces, if number has fewer digits

	// Clear the rest of the card first
	mvwprintw(w, row+2, col+1, "     ");
	mvwprintw(w, row+3, col+1, "     ");

	switch (card_get_points(c))
	{
		case 7:
			// "** **"
			// " *** "
			mvwhline(w, row+2, col+1, ACS_DIAMOND, 2);
			mvwhline(w, row+2, col+4, ACS_DIAMOND, 2);
			mvwhline(w, row+3, col+2, ACS_DIAMOND, 3);
			break;
		case 5:
			// "* * *"
			// " * * "
			mvwaddch(w, row+2, col+1, ACS_DIAMOND);
			mvwaddch(w, row+2, col+3, ACS_DIAMOND);
			mvwaddch(w, row+2, col+5, ACS_DIAMOND);
			mvwaddch(w, row+3, col+2, ACS_DIAMOND);
			mvwaddch(w, row+3, col+4, ACS_DIAMOND);
			break;
		case 3:
			// " * * "
			// "  *  "
			mvwaddch(w, row+2, col+2, ACS_DIAMOND);
			mvwaddch(w, row+2, col+4, ACS_DIAMOND);
			mvwaddch(w, row+3, col+3, ACS_DIAMOND);
			break;
		case 2:
			// " * * "
			// "     "
			mvwaddch(w, row+2, col+2, ACS_DIAMOND);
			mvwaddch(w, row+2, col+4, ACS_DIAMOND);
			break;
		default:
			// "  *  "
			// "     "
			mvwaddch(w, row+2, col+3, ACS_DIAMOND);
	}

	if (colors)
	{
		wattroff(w, COLOR_PAIR(color_pair));
	}
}

static void draw_cardstack(WINDOW *w, const uint8_t row, const uint8_t col, const cardstack cs)
{
	for (uint8_t i = 0; i < MAX_CARDSTACK_SIZE; i++)
	{
		if (cs[i] != 0)
		{
			draw_card(w, row, i*2, cs[i]);
		}
	}
}

void display_window_table_cards(const tablestacks ts)
{
	mvwprintw(w_table_cards, 0, 2, "Table Cards:");

	for (uint8_t i = 0; i < NUM_TABLESTACKS; i++)
	{
		draw_cardstack(w_table_cards, 1 + i*5, 0, ts[i]);
	}

	wrefresh(w_table_cards);
}

void display_window_stack_points(const tablestacks ts)
{
	mvwprintw(w_stack_points, 0, 0, "Pts:");

	for (uint8_t i = 0; i < NUM_TABLESTACKS; i++)
	{
		mvwprintw(w_stack_points, 3 + i*5, 1, "%2d", cardstack_get_points(ts[i]));
	}

	wrefresh(w_stack_points);
}

/**
 * Displays the current state window.
 * @param[in] score The players score
*/
void display_window_current_state(const uint32_t score)
{
	mvwprintw(w_current_state, 0, 0, "Current state:");
	mvwprintw(w_current_state, 0, 23, "Your Score: %3d", score);

	wrefresh(w_current_state);
}

/**
 * Displays the hand cards window.
 * @param[in] h The hand that will be displayed. h must not contain 0
*/
void display_window_hand_cards(const hand h)
{
	mvwprintw(w_hand_cards, 0, 0, "Hand Cards:");

	for (uint8_t i = 0; i < MAX_HAND_CARDS; i++)
	{
		if (i < 5) // Start with the first row of cards
			draw_card(w_hand_cards, 1, i*8, h[i]);
		else // And then draw the second row
			draw_card(w_hand_cards, 6, (i-5)*8, h[i]);
	}

	wrefresh(w_hand_cards);
}

void display_init(void)
{
	initscr();	// Start curses mode
	if (TRUE == has_colors())
	{
		colors = true;
		start_color();

		init_pair(CP_WHITE_ON_BLACK, COLOR_WHITE, COLOR_BLACK);
		init_pair(CP_YELLOW_ON_BLACK, COLOR_YELLOW, COLOR_BLACK);
		init_pair(CP_BLUE_ON_BLACK, COLOR_BLUE, COLOR_BLACK);
		init_pair(CP_MAGENTA_ON_BLACK, COLOR_MAGENTA, COLOR_BLACK);
		init_pair(CP_RED_ON_BLACK, COLOR_RED, COLOR_BLACK);
		bkgd(COLOR_PAIR(0));
	}
	raw();		// Line buffering disabled
	keypad(stdscr, true); // We get F1, F2 etc..
	nodelay(stdscr, true); // Non-blocking input
	noecho();	// Don't echo() while we do getch
	curs_set(0);	// Make the cursor invisible
	clear();
	refresh();

	w_table_cards = newwin(21, 15, 0, 0);
	w_stack_points = newwin(19, 4, 0, 17);
	w_current_state = newwin(10, 38, 0, 24);
	w_hand_cards = newwin(11, 39, 10, 24);

	const tablestacks ts = {{1, 2, 3, 4, 101}, {6, 7, 53, 0, 0}, {11, 55, 0, 0, 0}, {17, 29, 36, 42, 0}};
	const hand h = {12, 13, 22, 25, 27, 69, 77, 85, 100, 103};
	const uint32_t score = 10;
	mvvline(0, 22, ACS_VLINE, 21); // Vertical line
	refresh();
	display_window_table_cards(ts);
	display_window_stack_points(ts);
	display_window_current_state(score);
	display_window_hand_cards(h);
	//refresh();
	sleep(3);
}

void display_fini(void)
{
	delwin(w_table_cards);
	delwin(w_stack_points);
	delwin(w_current_state);
	delwin(w_hand_cards);
	endwin();	// End curses mode
}