1 files changed, 114 insertions, 0 deletions
diff --git a/src/server/curses.c b/src/server/curses.c
new file mode 100644
index 0000000..cdd2aea
--- /dev/null
+++ b/src/server/curses.c
@@ -0,0 +1,114 @@
+/*
+ * Hot Beverage Companion – desktop application curses ui
+ *
+ * Copyright (C) 2018 Gediminas Jakutis
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; version 2.1
+ * of the License.
+ *
+ * This program 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <ncurses.h>
+#include "util.h"
+#include "curses.h"
+
+struct settings {
+	int nd;
+	struct timespec period;
+};
+
+struct settings settings;
+
+static void curses_idle(void);
+static void curses_update(const struct tempmodule_state * const state);
+
+int curses_init(int nd, struct timespec period)
+{
+	settings.nd = nd;
+	settings.period = period;
+
+	initscr();
+	nodelay(stdscr, 1);
+	noecho();
+
+	return A_OK;
+}
+
+int curses_loop(void)
+{
+	static int statechange = 1;
+	static struct tempmodule_state state;
+	int status;
+
+	do {
+		if (getch() == 'q') {
+			status = A_OK;
+			break;
+		}
+
+		status = refresh_data(settings.nd, &state);
+		if (status == A_OK) {
+			curses_update(&state);
+			statechange = 1;
+		} else if (status == DEAD && statechange) {
+			curses_idle();
+			statechange = 0;
+		}
+		nanosleep(&settings.period, NULL);
+	} while (status != ERROR);
+
+	endwin();
+
+	return status;
+}
+
+static void curses_idle(void)
+{
+	move(0, 0);
+	clrtoeol();
+	printw("sequence: [waiting for ESP8266...]");
+	move(1, 0);
+	clrtoeol();
+	mvprintw(1, 0, "thermistor temp: [waiting for ESP8266...]");
+	move(2, 0);
+	clrtoeol();
+	mvprintw(2, 0, "thermistor resistance: [waiting for ESP8266...]");
+	move(3, 0);
+	clrtoeol();
+	mvprintw(3, 0, "tap voltage: [waiting for ESP8266...]");
+	move(4, 0);
+	clrtoeol();
+	mvprintw(4, 0, "press 'q' to exit");
+	refresh();
+}
+
+static void curses_update(const struct tempmodule_state * const state)
+{
+
+	move(0, 0);
+	clrtoeol();
+	printw("sequence: %u", state->sequence);
+	move(1, 0);
+	clrtoeol();
+	mvprintw(1, 0, "thermistor temp: %.1fC", state->temperature);
+	move(2, 0);
+	clrtoeol();
+	mvprintw(2, 0, "thermistor resistance: %hd Ohm", state->resistance);
+	move(3, 0);
+	clrtoeol();
+	mvprintw(3, 0, "tap voltage: %.3fV (%hd)", state->voltage, state->voltage_raw);
+	move(4, 0);
+	clrtoeol();
+	mvprintw(4, 0, "press 'q' to exit");
+	refresh();
+}