;;; bundle--email
(setq mml-default-sign-method "pgpmime"
      mml-default-encrypt-method "pgpmime"
      mml-secure-openpgp-sign-with-sender t
      mail-user-agent 'message-user-agent
      compose-mail-user-agent-warnings nil)

(defun mk/sign-email ()
  ;; Sign an Email using the key of the sender.
  (interactive)
  (mml-secure-message-sign-pgpmime))

(defun mk/encrypt-email ()
  ;; Encrypt an Email using the key of the recipient.
  (interactive)
  (mml-secure-message-encrypt-pgpmime))

(defvar mk/gps-location
  (eval '(let ((float-output-format "%.1f"))
	   (format "%s%s, %s%s"
		   (if (numberp calendar-latitude)
                       (abs calendar-latitude)
                     (+ (aref calendar-latitude 0)
			(/ (aref calendar-latitude 1) 60.0)))
		   (if (numberp calendar-latitude)
                       (if (> calendar-latitude 0) "N" "S")
                     (if (eq (aref calendar-latitude 2) 'north) "N" "S"))
		   (if (numberp calendar-longitude)
                       (abs calendar-longitude)
                     (+ (aref calendar-longitude 0)
			(/ (aref calendar-longitude 1) 60.0)))
		   (if (numberp calendar-longitude)
                       (if (> calendar-longitude 0) "E" "W")
                     (if (eq (aref calendar-longitude 2) 'east) "E" "W"))))))

(defvar mk/signature-name
  (concat "Cheers, "
          user-full-name
          " ("
          calendar-location-name
          ", "
          mk/gps-location
          ")\n"))

(defvar mk/signature-gpg "GnuPG Key: https://meta.sr.ht/~marcuskammer.pgp\nFingerprint: 86DB 0F30 F9F1 661A 54E2 1664 C374 817B E285 268F")

(defun mk/signature-time ()
  (format-time-string "Written on: %a, %d %b %Y %R %z\n"))

(defun mk/signature ()
  (concat mk/signature-name (mk/signature-time) mk/signature-gpg))

(use-package smtpmail
  :ensure nil
  :config
  (setq smtpmail-smtp-server "smtp.mailbox.org"
        smtpmail-smtp-service 465
        smtpmail-stream-type 'ssl
        smtpmail-auth-credentials (expand-file-name "~/.authinfo.gpg")))

(use-package message
  :ensure nil
  :hook ((message-signature-setup . (lambda () (setf message-signature (mk/signature))))
	 (mail-send-hook . #'ispell-message)
	 (message-send-hook . #'ispell-message))
  :custom
  (message-directory "~/Maildir")
  (message-auto-save-directory "~/Maildir/Drafts")
  (message-send-mail-function 'smtpmail-send-it))

(when (eq system-type 'gnu/linux)
  (use-package mu4e
    :ensure nil
    :hook (mu4e-compose-pre . (lambda () (setf mu4e-compose-signature (mk/signature))))
    :custom
    (mu4e-change-filenames-when-moving t)
    (mu4e-drafts-folder "/Drafts")
    (mu4e-get-mail-command "mbsync -a")
    (mu4e-headers-date-format "%Y-%m-%d %H:%M")
    (mu4e-refile-folder "/Archive")
    (mu4e-sent-folder "/Sent")
    (mu4e-trash-folder "/Trash")
    (mu4e-split-view 'horizontal)
    (mu4e-update-interval (* 10 60))))

(use-package gnus
  :ensure nil
  :hook (gnus-summary-prepare . gnus-summary-sort-by-most-recent-date)
  :custom
  (gnus-inhibit-startup-message t)
  (gnus-check-new-newsgroups nil)
  (gnus-select-method '(nnnil ""))
  (gnus-secondary-select-methods
   '((nntp "news.individual.de"
           (nntp-open-connection-function nntp-open-ssl-stream)
           (nntp-port-number 563)
           (nntp-authinfo-file "~/.authinfo.gpg"))
     (nnimap "mailbox"
             (nnimap-address "imap.mailbox.org")
             (nnimap-inbox "INBOX")
             (nnimap-server-port 993)
             (nnimap-stream ssl)
             (nnimap-authinfo-file "~/.authinfo.gpg")))))