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(include "telebot.scm")
(import (prefix telebot telebot:))
(use vector-lib)
(use loops)
(define (assure-list value)
(if (list? value)
value
(list)))
(define (find-pair symbol nodes)
(find (lambda (x) (equal? symbol (car x)))
(filter pair? nodes)))
(define (resolve-query query tree)
(fold-right (lambda (x y) (find-pair x (assure-list y)))
tree
(reverse query)))
(define (updates-for-each func updates)
(vector-for-each (lambda (i u) (func u))
(cdr updates)))
(define offset 0)
(define token (car (command-line-arguments)))
(define (print-message msg)
(print (cdr (resolve-query (list 'message 'from 'first_name) msg))
": "
(cdr (resolve-query (list 'message 'text) msg))
" ("
(cdr (resolve-query (list 'update_id) msg))
")"))
(define (echo-message msg)
(let ((chat_id (cdr (resolve-query (list 'message 'from 'id) msg)))
(text (cdr (resolve-query (list 'message 'text) msg)))
(message_id (cdr (resolve-query (list 'message 'message_id) msg))))
(telebot:sendMessage token
chat_id: chat_id
text: text
reply_to_message_id: message_id)))
(do-forever
(updates-for-each (lambda (u)
(begin (print-message u)
(echo-message u)
(set! offset
(+ 1 (cdr (resolve-query (list 'update_id) u))))))
(resolve-query (list 'result)
(telebot:getUpdates token
offset: offset
timeout: 60))))
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