;;; oni-org-roam.el --- Configuration for org-roam   -*- lexical-binding: t; -*-

;; Copyright (C) 2021  Tom Willemse

;; Author: Tom Willemse <tom@ryuslash.org>
;; Keywords: local
;; Version: 2021.1116.222944
;; Package-Requires: (oni-org org-roam)

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

;; This program 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 General Public License for more details.

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

;;; Commentary:

;; Configuration specific to ‘org-roam’. Add the following to your init file if
;; you want to use this configuration:
;;
;;     (with-eval-after-load 'org-roam (require 'oni-org-roam))

;;; Code:

(require 'org-roam)
(require 'seq)

(setq org-roam-completion-everywhere t)
(setq org-roam-directory (expand-file-name "~/documents/exocortex/"))

(add-hook 'org-roam-mode-hook 'visual-line-mode)

(mkdir org-roam-directory t)

;;; Taken from/inspired by
;;; https://magnus.therning.org/2021-07-23-keeping-todo-items-in-org-roam-v2.html
(defun oni-org-roam--todo-node-p (node)
  "Predicate to check whether or not NODE is task."
  (let ((state (org-roam-node-todo node)))
    (and (not (null state))
         (not (string= state "FINISHED")))))

(defun oni-org-roam--todo-files ()
  "Get a list of all the files in the org-roam database with tasks in them."
  (let ((nodes (seq-filter #'oni-org-roam--todo-node-p (org-roam-node-list))))
    (seq-uniq (seq-map #'org-roam-node-file nodes))))

(defun oni-org-roam-update-todo-files (&rest _)
  "Set ‘org-agenda-files’ to all roam files with a task in them."
  (setq org-agenda-files (seq-uniq (append org-agenda-files (oni-org-roam--todo-files)))))

(advice-add 'org-agenda :before #'oni-org-roam-update-todo-files)

;;;###autoload
(setq org-roam-v2-ack t)

(org-roam-db-autosync-mode)

(provide 'oni-org-roam)
;;; oni-org-roam.el ends here