;;; my-web.el -- web related extensions for emacs core -*- lexical-binding: t -*-

;; Copyright (C) 2023 Free Software Foundation.

;; Author: Yuchen Pei <id@ypei.org>
;; Package-Requires: ((emacs "28.2"))

;; This file is part of dotfiles.

;; dotfiles is free software: you can redistribute it and/or modify it under
;; the terms of the GNU Affero General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; dotfiles is distributed in the hope that it will be useful, but WITHOUT
;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General
;; Public License for more details.

;; You should have received a copy of the GNU Affero General Public
;; License along with dotfiles.  If not, see <https://www.gnu.org/licenses/>.

;;; Commentary:

;; web related extensions for emacs core. Covers eww etc.

;;; Code:



(defun my-eww-next-path ()
  (interactive)
  (let ((url (plist-get eww-data :url)))
    (when (string-match "^\\(.*?\\)\\([0-9]+\\)\\(.*\\)$" url)
      (eww (concat
	          (match-string 1 url)
	          (number-to-string
	           (1+ (string-to-number (match-string 2 url))))
	          (match-string 3 url))))))

(defun my-eww-prev-path ()
  (interactive)
  (let ((url (plist-get eww-data :url)))
    (when (string-match "^\\(.*\\)\\([0-9]+\\)\\(.*\\)$" url)
      (eww (concat
	    (match-string 1 url)
	    (number-to-string
	     (1- (string-to-number (match-string 2 url))))
	    (match-string 3 url))))))

(defun my-eww-up-path ()
  (interactive)
  (let ((url (plist-get eww-data :url)))
    (when (and (string-match "^\\(.*//.*/\\)[^/]+\\(/\\)?$" url)
	       (match-string 1 url))
      (eww (match-string 1 url)))))

(defun my-eww-top-path ()
  (interactive)
  (let ((url (plist-get eww-data :url)))
    (when (and (string-match "^\\(.*//.*?/\\).*$" url)
	       (match-string 1 url))
      (eww (match-string 1 url)))))

(defun my-browse-url-tor-browser (url)
  "Browse URL with tor-browser."
  (setq url (browse-url-encode-url url))
  (start-process (concat "tor-browser " url) nil "tor-browser"
                 "--allow-remote" url))

(defun my-browse-url-firefox-private (url)
  "Browse URL in a private firefox window."
  (setq url (browse-url-encode-url url))
  (start-process (concat "firefox-private " url) nil "firefox"
                 "--private-window" url))

(defun my-browse-url-qutebrowser (url)
  "Browse URL with qutebrowser."
  (setq url (browse-url-encode-url url))
  (start-process (concat "qutebrowser " url) nil "qutebrowser"
                 url))

(defun my-browse-url-mullvad (url)
  "Browse URL with Mullvad browser."
  (setq url (browse-url-encode-url url))
  (start-process (concat "mullvad-browser " url) nil "mullvad-browser"
                 url))

;; TODO: change to using hmm matching url with default app
;; override browse-url
(defun my-browse-url (url &optional arg)
  (interactive "P")
  (cond ((equal arg '(4))
	       (funcall browse-url-secondary-browser-function url))
        ((equal arg '(16))
         (my-browse-url-tor-browser url))
        (t (luwak-open url))))

;; this fixes clicking url buttons like those in gnus messages
(defalias 'browse-url-button-open-url 'my-browse-url)

(defun my-browse-url-at-point (arg)
  (interactive "P")
  (my-browse-url (browse-url-url-at-point) arg))

;; override eww-copy-page-url to work with bookmark id frags.
(defun eww-copy-page-url ()
  "Copy the URL of the current page into the kill ring."
  (interactive)
  (let* ((url (plist-get eww-data :url))
	 (id (get-text-property (point) 'shr-frag-id))
	 (url-no-frag
	  (if (string-match "^\\(.*\\)#.*$" url)
	      (match-string 1 url)
	    url))
	 (final-url
	  (if id (concat url-no-frag "#" id)
	    url))
	 )
    (message "%s" final-url)
    (kill-new final-url)))

(defun my-eww-switch-by-title (title-and-buffer)
  "Switches to an eww buffer with selected title."
  (interactive
   (list
    (let ((com-table))
      (dolist (buffer (buffer-list))
	      (with-current-buffer buffer
	        (when (equal major-mode 'eww-mode)
	          (add-to-list
	           'com-table
	           (concat (plist-get eww-data :title)
		                 (propertize (concat " " (buffer-name))
				                         'invisible t))))))
      (completing-read "Eww buffer title: " com-table))))
  (string-match "^.* \\(.*\\)$" title-and-buffer)
  (switch-to-buffer (match-string 1 title-and-buffer)))

(defun my-red-energy-copy-clean-url (beg end)
  "Clean up the payment url in a raw red energy bill email."
  (interactive "r")
  (let ((url (url-unhex-string
              (replace-regexp-in-string
               "^.*url=" "" (replace-regexp-in-string
                             "=3D" "=" (replace-regexp-in-string "=
" "" (buffer-substring-no-properties beg end)))))))
    (kill-new url)
    (message "Copied link: %s" url)))

(provide 'my-web)
;;; my-web.el ends here