120 lines
3.1 KiB
C
120 lines
3.1 KiB
C
#include <signal.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <tgbot.h>
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#define WELCOME_MSG "Hi there! This bot is coded in C."
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void parse_command(tgbot_s *bot, tgbot_update_s *update);
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void sighandler(int signum);
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void callback_parser(tgbot_s *bot, tgbot_cbquery_s *query);
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bool run = true;
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tgbot_s *bot;
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tgbot_inlinekeyboard_s *keyboard;
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/* Callback handler function */
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void callback_handler(tgbot_s *bot, tgbot_cbquery_s *query) {
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if (strcmp("test-callback", query->data) == 0) {
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/* Handle `test-callback` */
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tgbot_inlinekeyboard_s *home_keyboard = tgbot_inlinekb_new(1, 1);
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/* Add buttons */
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tgbot_inlinekb_button(home_keyboard, 0, 0, "Home", "", "home");
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tgbot_edit_message_text(bot, query->chat_id, query->message_id, "Callback called!", home_keyboard);
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tgbot_inlinekb_free(home_keyboard);
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return;
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} else if (strcmp("home", query->data) == 0) {
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tgbot_edit_message_text(bot, query->chat_id, query->message_id, WELCOME_MSG, keyboard);
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return;
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}
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}
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void sighandler(int signum) {
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fprintf(stdout, "Closing...\n");
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run = false;
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}
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void parse_command(tgbot_s *bot, tgbot_update_s *update) {
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tgbot_rc ret;
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if (strcmp("/start", update->text) == 0) {
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ret = tgbot_send_message(bot, update->chat_id, WELCOME_MSG, "Markdown", keyboard);
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if (ret != TGBOT_OK) {
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fprintf(stderr, "Failed to send message\n");
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}
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return;
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}
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/* Echo the message */
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ret = tgbot_send_message(bot, update->chat_id, update->text, "Markdown", NULL);
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if (ret != TGBOT_OK) {
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fprintf(stderr, "Failed to send message\n");
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}
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}
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int main(void) {
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/* Find "your" way to free the resources */
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signal(SIGINT, sighandler);
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tgbot_rc ret;
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char token[256];
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FILE *fp = fopen(".token", "r");
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if (fp == NULL) {
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fprintf(stderr, "No .token file found!\n");
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exit(EXIT_FAILURE);
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}
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fscanf(fp, "%s", token);
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fprintf(stdout, "Token: %s\n", token);
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fclose(fp);
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/* Initialize the bot */
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bot = tgbot_new(token);
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if (!bot) {
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fprintf(stderr, "tgbot_init()\n");
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exit(1);
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}
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/* Calling tgbot_get_me() you can get bot's info */
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fprintf(stdout, "Running Telegram bot...\nPress Ctrl-C to close.\n");
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tgbot_update_s update;
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/* Allocate the new inline keyboard (remember to free!) */
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keyboard = tgbot_inlinekb_new(1, 2);
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if (keyboard == NULL) {
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tgbot_free(bot);
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return 1;
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}
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/* Populate the InlineKeyboardMarkup */
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tgbot_inlinekb_button(keyboard, 0, 0, "Google", "https://google.com", "");
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tgbot_inlinekb_button(keyboard, 0, 1, "Callback", "", "test-callback");
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/* If you want 3 buttons on 2 rows, for example on the first row 2 buttons and on the second only one */
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/* you have to put rows = 2, columns = 2 and pass an empty string to .text field */
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/* Main loop */
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while (run) {
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ret = tgbot_get_update(bot, &update, callback_handler);
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if (ret != TGBOT_OK) {
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fprintf(stderr, "tgbot_get_updates()\n");
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continue;
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}
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if (update.message_id > 0) {
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parse_command(bot, &update);
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}
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}
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tgbot_inlinekb_free(keyboard);
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tgbot_free(bot);
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return 0;
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}
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