refactoring, add examples, move to library()

examples/echobot/echobot.c

@@ -0,0 +1,51 @@
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <tgbot.h>
+
+
+bool run = true;
+
+void sighandler(int signum) {
+	run = false;
+}
+
+void callback(tgbot *bot, tgbot_cbquery *query) {
+	fprintf(stdout, "Callback called!");
+}
+
+void echo_message(tgbot *bot, tgbot_update *update) {
+	tgbot_send_message(bot, update->chat_id, update->text, "MARKDOWN", NULL, 0, 0);
+}
+
+int main(void) {
+	printf("Running...\n");
+	/* Retrieve bot's token */
+	FILE *fp = fopen(".token", "r");
+	if (fp == NULL) {
+		fprintf(stderr, "Unable to retrieve bot token\n");
+		return 1;
+	}
+
+	char token[256];
+	fscanf(fp, "%s", token);
+	fprintf(stdout, "Token: %s\n", token);
+	fclose(fp);
+
+	signal(SIGINT, sighandler);
+
+	/* Initialize bot */
+	tgbot bot;
+	tgbot_init(&bot, token);
+	tgbot_update update;
+
+	while (run) {
+		tgbot_get_update(&bot, &update, callback);
+		echo_message(&bot, &update);
+	}
+
+	fprintf(stdout, "Closing...");
+	tgbot_destroy(&bot);
+
+	return 0;
+}