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#!/usr/bin/env racket
;;
;; SPDX-License-Identifier: ISC
;;
;; Copyright © 2019 rsiddharth <s@ricketyspace.net>
;;
#lang racket/base
(require racket/list)
(require racket/port)
(require net/http-client)
(require openssl)
(require html-parsing)
(require sxml)
(require sxml/sxpath)
(define HOST "news.ycombinator.com")
(define (fp)
"Fetch HN Front Page."
(let ((hc (http-conn-open HOST
#:ssl? (ssl-make-client-context 'secure)
#:port 443)))
(define-values (status headers port)
(http-conn-sendrecv! hc "/"))
(port->string port)))
(define (athings)
"Get 20 athings from HN front page."
(let ((x (html->xexp (fp)))
(s (sxpath "//tr[@class=\"athing\"]")))
(take (s x) 20)))
(define (athing:id a)
(let ((id (sxml:attr a 'id)))
(if (empty? id) (error "athing:id: Unable to get id")
id)))
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