12 files changed, 200 insertions, 25 deletions
diff --git a/client/errcatch.c b/client/errcatch.c
new file mode 100644
index 0000000..e8d696a
--- /dev/null
+++ b/client/errcatch.c
@@ -0,0 +1,19 @@
+#include "../shared/errcatch.h"
+
+void w2_errcatch_handle_error(w2_s_error *error) {
+	// TODO: handle more error types
+	switch (error->code) {
+		case W2_E_WARN_UNCAUGHT_ERROR: {
+			break;
+		}
+		default: {
+			g_w2_error_uncaught = true;
+#ifdef W2_SIM
+			simwarn("Uncaught/unhandled error found with code 0x%02x\n", error->code);
+#endif
+		}
+	}
+
+	return;
+}
+
diff --git a/client/main.c b/client/main.c
index d51f30b..1060f7d 100644
--- a/client/main.c
+++ b/client/main.c
@@ -1,29 +1,15 @@
+#include "setup.h"
+#include "../shared/errcatch.h"
+#include "main.h"
 #include "serial.h"
-
-#include <stdio.h>
-#include <unistd.h>
+#include "ui.h"
 
 int main(int argc, char **argv) {
-	if (argc < 2) {
-		printf("usage: %s <serial port>\n", argv[0]);
-		return 1;
-	}
-
-	if (w2_serial_open(argv[1]) == 0) {
-		printf("serial port open fout");
-		return 1;
-	}
-
-	printf("writing...\n");
-	bool success = w2_serial_write("\xff\x14", 2);
-	printf("writing %s\n", success ? "succeeded" : "failed");
+	w2_client_setup(argc, argv);
 
-	printf("reading...\n");
 	while (1) {
-		int res = w2_serial_read();
-		if (res == -1) continue;
-
-		printf("%02x ", (uint8_t)res);
-		fflush(stdout);
+		w2_serial_main();
+		w2_errcatch_main();
+		w2_ui_main();
 	}
 }
diff --git a/client/main.h b/client/main.h
new file mode 100644
index 0000000..7bb2173
--- /dev/null
+++ b/client/main.h
@@ -0,0 +1,12 @@
+#pragma once
+
+#include "../shared/protocol.h"
+
+typedef struct {
+	unsigned int ping;
+	w2_s_cmd_info_tx info;
+	w2_s_cmd_sens_tx io;
+} w2_s_client_state;
+
+extern w2_s_client_state g_w2_state;
+
diff --git a/client/makefile b/client/makefile
index 87d06a9..f70f70f 100644
--- a/client/makefile
+++ b/client/makefile
@@ -10,7 +10,7 @@ all: $(EXECNAME)
 
 SOURCES := $(wildcard *.c)
 HEADERS := $(wildcard *.h)
-# include ../shared/makefile
+include ../shared/makefile
 
 OBJECTS := $(patsubst %.c,%.o, $(SOURCES))
 
diff --git a/client/readme.md b/client/readme.md
index 2a8c19f..1fbd49c 100644
--- a/client/readme.md
+++ b/client/readme.md
@@ -27,7 +27,8 @@ the robot in various ways. it primarily works in a bios-like way, with the user
 having access to multiple tabs containing options or custom interface elements.
 
 to start the interface, the user should run `./main <com-port>`. the interface
-could look something like this (with colored text for element seperation):
+could look something like this (with colored text for element seperation, [see
+on figma](https://www.figma.com/file/vZ6rQp2G1HBAmbdrkxIZJ3/terminal-app)):
 
 ```
 verbonden, 2ms ping           (0.0.2-11-g92c394b)                  batterij 100%
diff --git a/client/serial.c b/client/serial.c
new file mode 100644
index 0000000..6f667a8
--- /dev/null
+++ b/client/serial.c
@@ -0,0 +1,46 @@
+#include "serial.h"
+#include "../shared/protocol.h"
+#include "../shared/serial_parse.h"
+
+void w2_serial_main() {
+	int temp;
+	while ((temp = w2_serial_read()) != -1) w2_serial_parse(temp);
+	w2_serial_write("\xff\x14", 2);
+}
+
+void w2_cmd_ping_tx(w2_s_bin *data) {
+	printf("w2_cmd_ping_tx()\n");
+}
+void w2_cmd_expt_tx(w2_s_bin *data) {
+	printf("w2_cmd_expt_tx()\n");
+}
+void w2_cmd_mode_tx(w2_s_bin *data) {
+	printf("w2_cmd_mode_tx()\n");
+}
+void w2_cmd_cord_tx(w2_s_bin *data) {
+	printf("w2_cmd_cord_tx()\n");
+}
+void w2_cmd_bomd_tx(w2_s_bin *data) {
+	printf("w2_cmd_bomd_tx()\n");
+}
+void w2_cmd_sens_tx(w2_s_bin *data) {
+	printf("w2_cmd_sens_tx()\n");
+}
+void w2_cmd_info_tx(w2_s_bin *data) {
+	printf("w2_cmd_info_tx()\n");
+}
+
+void w2_cmd_ping_rx(w2_s_bin *data) { return; }
+void w2_cmd_mode_rx(w2_s_bin *data) { return; }
+void w2_cmd_sped_rx(w2_s_bin *data) { return; }
+void w2_cmd_dirc_rx(w2_s_bin *data) { return; }
+void w2_cmd_cord_rx(w2_s_bin *data) { return; }
+void w2_cmd_bomd_rx(w2_s_bin *data) { return; }
+void w2_cmd_sres_rx(w2_s_bin *data) { return; }
+void w2_cmd_mcfg_rx(w2_s_bin *data) { return; }
+void w2_cmd_sens_rx(w2_s_bin *data) { return; }
+void w2_cmd_info_rx(w2_s_bin *data) { return; }
+void w2_cmd_disp_rx(w2_s_bin *data) { return; }
+void w2_cmd_play_rx(w2_s_bin *data) { return; }
+void w2_cmd_cled_rx(w2_s_bin *data) { return; }
+
diff --git a/client/serial.h b/client/serial.h
index caa3cda..b29dfb5 100644
--- a/client/serial.h
+++ b/client/serial.h
@@ -16,3 +16,5 @@ bool w2_serial_write(char *data, uint8_t length);
 bool w2_serial_open(const char *port_name);
 /** close serial port */
 void w2_serial_close();
+
+void w2_serial_main();
diff --git a/client/serial_linux.c b/client/serial_linux.c
index 080dca1..2497fac 100644
--- a/client/serial_linux.c
+++ b/client/serial_linux.c
@@ -63,7 +63,7 @@ speed_t w2_baud_map(int baud) {
 int w2_serial_read() {
 	int return_val;
 	int bytes = read(g_w2_serial_handle, &return_val, 1);
-	return return_val == -1 || bytes != 1 ? -1 : (uint8_t)return_val;
+	return bytes != 1 ? -1 : (uint8_t)return_val;
 }
 
 bool w2_serial_write(char *data, uint8_t length) {
diff --git a/client/setup.c b/client/setup.c
new file mode 100644
index 0000000..d7314e8
--- /dev/null
+++ b/client/setup.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "serial.h"
+#include "setup.h"
+#include "../shared/bin.h"
+#include "../shared/protocol.h"
+
+// pointers for endianness check
+static const uint16_t _test	 = 1;
+static const uint8_t *_ptest = (uint8_t *)&_test;
+uint8_t g_w2_endianness;
+
+void w2_client_setup(int argc, char** argv) {
+	if (argc < 2) {
+		printf("usage: %s <serial port>\n", argv[0]);
+		exit(1);
+	}
+
+	if (w2_serial_open(argv[1]) == 0) {
+		printf("serial port open fout\n");
+		exit(1);
+	}
+
+	w2_cmd_setup_handlers();
+
+	// check endianness
+	g_w2_endianness = *_ptest;
+}
diff --git a/client/setup.h b/client/setup.h
new file mode 100644
index 0000000..4b4a040
--- /dev/null
+++ b/client/setup.h
@@ -0,0 +1,3 @@
+#pragma once
+
+void w2_client_setup(int argc, char** argv);
diff --git a/client/ui.c b/client/ui.c
new file mode 100644
index 0000000..4a8e64d
--- /dev/null
+++ b/client/ui.c
@@ -0,0 +1,19 @@
+#include "ui.h"
+
+void w2_ui_main() {
+	w2_ui_update();
+	w2_ui_paint();
+}
+
+void w2_ui_update() {
+	// measure terminal width and height
+}
+
+void w2_ui_paint() {
+
+	w2_ui_paint_statusbar();
+}
+
+void w2_ui_paint_statusbar() {
+
+}
diff --git a/client/ui.h b/client/ui.h
new file mode 100644
index 0000000..433d610
--- /dev/null
+++ b/client/ui.h
@@ -0,0 +1,58 @@
+#pragma once
+
+#include <stdint.h>
+
+#include "../shared/bool.h"
+
+typedef struct {
+	unsigned int width;
+	unsigned int height;
+	unsigned int cursor_pos;
+} w2_s_ui_tty_canvas;
+
+typedef enum {
+	W2_UI_COL_BLK,
+	W2_UI_COL_RED,
+	W2_UI_COL_GRN,
+	W2_UI_COL_YEL,
+	W2_UI_COL_BLU,
+	W2_UI_COL_MAG,
+	W2_UI_COL_CYN,
+	W2_UI_COL_WHT,
+	W2_UI_COL_RST,
+} w2_e_colors;
+
+typedef enum {
+	W2_UI_ALIGN_LEFT,
+	W2_UI_ALIGN_CENTER,
+	W2_UI_ALIGN_RIGHT,
+} w2_e_alignment;
+
+extern bool g_w2_ui_enable_color;
+extern w2_s_ui_tty_canvas g_w2_ui_canvas;
+
+/** update terminal props */
+void w2_ui_update();
+/** clear screen */
+void w2_ui_clear();
+/** draw complete ui */
+void w2_ui_paint();
+/** draw status bar */
+void w2_ui_paint_statusbar();
+/** update and paint */
+void w2_ui_main();
+
+/** echo ansi color code for foreground color */
+void w2_ui_set_fg(w2_e_colors color);
+/** echo ansi color code for background color */
+void w2_ui_set_bg(w2_e_colors color);
+
+/** align `text` `align` with `text` buffer length `length` */
+void w2_ui_align(char* text, w2_e_alignment align, unsigned int length);
+
+/**
+ * trim spaces from `top` and overlay on top of `bottom`
+ * both strings should be at least `length` long
+ */
+void w2_ui_overlay(char* bottom, char* top, unsigned int length);
+