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public Serial s;
public Database w;
public static int main(string[] args) {
if(args.length < 2) {
stderr.printf("%s <device>\n", args[0]);
return 1;
}
s = new Serial(args[1], 9600, 8, 1);
w = new Database("shop.db");
char[] detected = {};
while(true) {
uint8 buf[64];
int size = (int) Posix.read(s.fd, buf, 64);
for(int i = 0; i < size; i++)
if(buf[i] != '\r' && buf[i] != '\n') {
detected += (char) buf[i];
} else {
if(detected.length > 0) {
detected += '\0';
interpret((string) detected);
}
detected = {};
}
}
}
public static void interpret(string data) {
if(data.has_prefix("USER ")) {
string str_id = data.substring(5);
uint64 id = uint64.parse(str_id);
if(w.is_logged_in()) {
stdout.printf("logout\n");
w.logout();
}
else {
stdout.printf("login: %llu\n".printf(id));
w.login(id);
}
} else {
uint64 id = uint64.parse(data);
w.buy(id);
stdout.printf("gekaufter Artikel: %s\n", w.get_product_name(id));
}
}
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