/* $Id$ */

#include <unistd.h>
#include <curses.h>
#include <sys/select.h>
#include "jack.h"
#include "ui.h"

int kbhit()
{
	struct timeval tv = { 0L, 0L };
	fd_set fds;
	FD_SET(0, &fds);
	return select(1, &fds, NULL, NULL, &tv);
}

int color_map[4];
char status[1024];

UI::UI()
{
	initscr();
	noecho();

	keypad(stdscr, true);
	nodelay(stdscr, true);
	raw();

	start_color();
	init_pair(1, COLOR_WHITE, COLOR_BLUE);
	init_pair(2, COLOR_BLACK, COLOR_CYAN);
	init_pair(3, COLOR_BLACK, COLOR_GREEN);

	for (int i = 0; i < 4; i++) {
		color_map[i] = COLOR_PAIR(i);
	}

	snprintf(status, sizeof status, " ");

	m_channel = 0;
}

UI::~UI()
{
	endwin();
}

bool UI::Run(Jack &j)
{
	bkgdset(color_map[1]);
	attrset(color_map[1]);
	mvprintw(0, 0, " msplit - %s", j.m_client_name);
	clrtoeol();
	mvprintw(3, 0, " %s", status);
	clrtoeol();

	for (int i = 0; i < NUM_CHANNELS; i++) {
		if (j.IsActive(i)) {
			bkgdset(color_map[3]);
			attrset(color_map[3]);
		} else {
			bkgdset(color_map[0]);
			attrset(color_map[0]);
		}
		mvprintw(1, 2 + i * 5, "%2d", i + 1);

		bkgdset(color_map[0]);
		attrset(color_map[0]);
		mvprintw(2, 1 + i * 5, "[  ]");

		bkgdset(color_map[(m_channel == i) ? 2 : 0]);
		attrset(color_map[(m_channel == i) ? 2 : 0]);
		mvprintw(2, 2 + i * 5, "%2d", j.GetChannel(i) + 1);
	}

	refresh();

	if (!kbhit()) {
		return false;
	}

	int c = getch();

	switch (c) {
		case KEY_LEFT:
			m_channel = (m_channel + NUM_CHANNELS - 1) % NUM_CHANNELS;
			break;

		case KEY_RIGHT:
			m_channel = (m_channel + 1) % NUM_CHANNELS;
			break;

		case KEY_UP:
			j.IncChannel(m_channel);
			break;

		case KEY_DOWN:
			j.DecChannel(m_channel);
			break;

		case UIKEY_QUIT:
			return true;

		case UIKEY_RECONNECT:
			if (!j.Connected()) {
				if (j.Connect()) {
					snprintf(status, sizeof status, "Reconnected to JACK");
				}
			}
			break;

		case UIKEY_DISCONNECT:
			if (j.Connected()) {
				j.Disconnect();
				snprintf(status, sizeof status, "Disconnected from JACK");
			}
			break;
	}

	return false;
}