(defun fcuny/rename-this-buffer-and-file ()
  "Renames current buffer and file it is visiting."
  (interactive)
  (let ((name (buffer-name))
        (filename (buffer-file-name))
        (read-file-name-function 'read-file-name-default))
    (if (not (and filename (file-exists-p filename)))
        (error "Buffer '%s' is not visiting a file!" name)
      (let ((new-name (read-file-name "New name: " filename)))
        (cond ((get-buffer new-name)
               (error "A buffer named '%s' already exists!" new-name))
              (t
               (rename-file filename new-name 1)
               (rename-buffer new-name)
               (set-visited-file-name new-name)
               (set-buffer-modified-p nil)
               (message "File '%s' successfully renamed to '%s'" name (file-name-nondirectory new-name))))))))

(defun fcuny/remove-mysql-columns ()
  "Removes from text. This is useful when I want to drop the column separator from some text coming from a mysql query."
  (interactive)
  (while (search-forward-regexp "\s?|\s?")
    (replace-match " ")))

(defun fcuny/copy-whole-buffer ()
  "Selects the buffer and copy it."
  (interactive)
  (save-excursion
    (mark-whole-buffer)
    (copy-region-as-kill 1 (buffer-size))))

(defun fcuny/check-work-machine-p ()
  "Returns t if this is a work machine"
  (string-match "tw-mbp.*" (system-name)))

(defun fcuny/check-source-predicate-python-p ()
  (and (executable-find "check.pex")
       (buffer-file-name)
       (string-match "src/source/.*\.py$" (buffer-file-name))))

(defun fcuny/build-python-checker ()
  "Compiles a newer version of the checker for Python."
  (interactive)
  (let ((output (make-temp-file "checker-foo"))
        (errors (make-temp-file "checker-errors"))
        (default-directory "~/workspace/source"))
    (let ((status (call-process "~/workspace/source/pants" nil `(,output ,errors) nil "-q" "binary" "src/python/twitter/devprod/checkstyle:check")))
      (if (zerop status)
          (message "Built check.pex successfully")
        (message (buffer-file-name output))))))

;; from https://karl-voit.at/2014/08/10/bookmarks-with-orgmode/
(defun fcuny/string-replace (this withthat in)
  "replace THIS with WITHTHAT' in the string IN"
  (with-temp-buffer
    (insert in)
    (goto-char (point-min))
    (replace-string this withthat)
    (buffer-substring (point-min) (point-max))))

(defun fcuny/get-page-title (url)
  "Make URL into an org-mode link."
  (let ((title))
    (with-current-buffer (url-retrieve-synchronously url)
      (goto-char (point-min))
      (re-search-forward "<title>\\([^<]*\\)</title>" nil t 1)
      (setq title (match-string 1))
      (goto-char (point-min))
      (re-search-forward "charset=\\([-0-9a-zA-Z]*\\)" nil t 1)
      (fcuny/string-replace "&nbsp;" " "
                        ;;(decode-coding-string title (intern (match-string 1)))
                        ;; following line fixes charset issues from
                        ;; previous line:
                            (decode-coding-string title 'utf-8))
      (concat "[[" url "][" title "]]"))))

(defun fcuny/org-archive-subtree-as-completed ()
  "Archives the current subtree to today's current journal entry."
  (interactive)
  (ignore-errors
    ;; According to the docs for `org-archive-subtree', the state should be
    ;; automatically marked as DONE, but I don't notice that:
    (when (not (equal "DONE" (org-get-todo-state)))
      (org-todo "DONE")))

  (let* ((org-archive-file (or org-default-completed-file
                               (fcuny/this-month-archive-entry)))
         (org-archive-location (format "%s::" org-archive-file)))
    (org-archive-subtree)))

(defun fcuny/this-month-archive-entry ()
  "Return the full pathname to the month's archive entry file.
Granted, this assumes each journal's file entry to be formatted
with year/month, as in `201901' for January 4th.

Note: `org-journal-dir' variable must be set to the directory
where all good journal entries live, e.g. ~/journal."
  (let* ((daily-name   (format "%s-archive.org" (format-time-string "%Y-%m")))
         (file-name    (concat org-archive-dir daily-name)))
    (expand-file-name file-name)))

(defun fcuny/org-subtree-region ()
  "Return a list of the start and end of a subtree."
  (save-excursion
    (list (progn (org-back-to-heading) (point))
          (progn (org-end-of-subtree)  (point)))))

(defun fcuny/org-refile-directly (file-dest)
  "Move the current subtree to the end of FILE-DEST.
If SHOW-AFTER is non-nil, show the destination window,
otherwise, this destination buffer is not shown."
  (interactive "fDestination: ")

  (defun dump-it (file contents)
    (find-file-other-window file-dest)
    (goto-char (point-max))
    (insert "\n" contents))

  (save-excursion
    (let* ((region (fcuny/org-subtree-region))
           (contents (buffer-substring (first region) (second region))))
      (apply 'kill-region region)
      (save-window-excursion (dump-it file-dest contents)))))

(defun fcuny/org-refile-to-task ()
  "Refile (move) the current Org subtree to `org-default-tasks-file'."
  (interactive)
  (fcuny/org-refile-directly org-default-tasks-file))

(defun fcuny/org-refile-to-task ()
  "Refile (move) the current Org subtree to `org-default-tasks-file'."
  (interactive)
  (fcuny/org-refile-directly org-default-tasks-file))

(defun fcuny/org-refile-to-personal-notes ()
  "Refile (move) the current Org subtree to `org-default-notes-file'."
  (interactive)
  (fcuny/org-refile-directly org-default-notes-file))

(defun fcuny/org-refile-subtree-to-file (dir)
  "Archive the org-mode subtree and create an entry in the
directory folder specified by DIR. It attempts to move as many of
the subtree's properties and other features to the new file."
  (interactive "DDestination: ")
  (let* ((props      (fcuny/org-subtree-metadata))
         (head       (plist-get props :header))
         (body       (plist-get props :body))
         (tags       (plist-get props :tags))
         (properties (plist-get props :properties))
         (area       (plist-get props :region))
         (filename   (fcuny/org-filename-from-title head))
         (filepath   (format "%s/%s.org" dir filename)))
    (apply #'delete-region area)
    (fcuny/org-create-org-file filepath head body tags properties)))

(defun fcuny/org-set-file-property (key value &optional spot)
  "Make sure file contains a top-level, file-wide property.
KEY is something like `TITLE' or `FILETAGS'. This function makes
sure that the property contains the contents of VALUE, and if the
file doesn't have the property, it is inserted at either SPOT, or
if nil,the top of the file."
  (save-excursion
    (goto-char (point-min))
    (let ((case-fold-search t))
      (if (re-search-forward (format "^#\\+%s:\s*\\(.*\\)" key) nil t)
          (replace-match value nil nil nil 1)

        (cond
         ;; if SPOT is a number, go to it:
         ((numberp spot) (goto-char spot))
         ;; If SPOT is not given, jump to first blank line:
         ((null spot) (progn (goto-char (point-min))
                             (re-search-forward "^\s*$" nil t)))
         (t (goto-char (point-min))))

        (insert (format "#+%s: %s\n" (upcase key) value))))))

(defun fcuny/org-create-org-file (filepath header body tags properties)
  "Create a new Org file by FILEPATH. The contents of the file is
pre-populated with the HEADER, BODY and any associated TAGS."
  (find-file-other-window filepath)
  (fcuny/org-set-file-property "TITLE" header t)
  (when tags
    (fcuny/org-set-file-property "FILETAGS" (s-join " " tags)))

  ;; Insert any drawer properties as #+PROPERTY entries:
  (when properties
    (goto-char (point-min))
    (or (re-search-forward "^\s*$" nil t) (point-max))
    (--map (insert (format "#+PROPERTY: %s %s" (first it) (second it))) properties))

  ;; My auto-insert often adds an initial headline for a subtree, and in this
  ;; case, I don't want that... Yeah, this isn't really globally applicable,
  ;; but it shouldn't cause a problem for others.
  (when (re-search-forward "^\\* [0-9]$" nil t)
    (replace-match ""))

  (delete-blank-lines)
  (goto-char (point-max))
  (insert "\n")
  (insert body))

(defun fcuny/org-subtree-metadata ()
  "Return a list of key aspects of an org-subtree. Includes the
following: header text, body contents, list of tags, region list
of the start and end of the subtree."
  (save-excursion
    ;; Jump to the parent header if not already on a header
    (when (not (org-at-heading-p))
      (org-previous-visible-heading 1))

    (let* ((context (org-element-context))
           (attrs   (second context))
           (props   (org-entry-properties)))

      (list :region     (list (plist-get attrs :begin) (plist-get attrs :end))
            :header     (plist-get attrs :title)
            :tags       (fcuny/org-get-subtree-tags props)
            :properties (fcuny/org-get-subtree-properties attrs)
            :body       (fcuny/org-get-subtree-content attrs)))))

(defun fcuny/org-filename-from-title (title)
  "Creates a useful filename based on a header string, TITLE.
For instance, given the string:    What's all this then?
     This function will return:    whats-all-this-then"
  (let* ((no-letters (rx (one-or-more (not alphanumeric))))
         (init-try (->> title
                        downcase
                        (replace-regexp-in-string "'" "")
                        (replace-regexp-in-string no-letters "-"))))
    (string-trim init-try "-+" "-+")))

(defun fcuny/org-get-subtree-content (attributes)
  "Return the contents of the current subtree as a string."
  (let ((header-components '(clock diary-sexp drawer headline inlinetask
                             node-property planning property-drawer section)))

      (goto-char (plist-get attributes :contents-begin))

      ;; Walk down past the properties, etc.
      (while
          (let* ((cntx (org-element-context))
                 (elem (first cntx))
                 (props (second cntx)))
            (when (member elem header-components)
              (goto-char (plist-get props :end)))))

      ;; At this point, we are at the beginning of what we consider
      ;; the contents of the subtree, so we can return part of the buffer:
      (buffer-substring-no-properties (point) (org-end-of-subtree))))

(defun fcuny/org-get-subtree-properties (attributes)
  "Return a list of tuples of a subtrees properties where the keys are strings."

  (defun symbol-upcase? (sym)
    (let ((case-fold-search nil))
      (string-match-p "^:[A-Z]+$" (symbol-name sym))))

  (defun convert-tuple (tup)
    (let ((key (first tup))
          (val (second tup)))
      (list (substring (symbol-name key) 1) val)))

  (->> attributes
       (-partition 2)                         ; Convert plist to list of tuples
       (--filter (symbol-upcase? (first it))) ; Remove lowercase tuples
       (-map 'convert-tuple)))

(defun fcuny/org-get-subtree-tags (&optional props)
  "Given the properties, PROPS, from a call to
`org-entry-properties', return a list of tags."
  (unless props
     (setq props (org-entry-properties)))
  (let ((tag-label "ALLTAGS" ))
    (-some->> props
         (assoc tag-label)
         cdr
         substring-no-properties
         (s-split ":")
         (--filter (not (equalp "" it))))))

(defun fcuny/org-refile-to-projects-dir ()
  "Move the current subtree to a file in the `projects' directory."
  (interactive)
  (fcuny/org-refile-subtree-to-file org-default-projects-dir))

(defun fcuny/org-refile-to-personal-dir ()
  "Move the current subtree to a file in the `personal' directory."
  (interactive)
  (fcuny/org-refile-subtree-to-file org-default-personal-dir))

(defun fcuny/org-refile-to-incubate ()
  "Refile (move) the current Org subtree to `org-default-incubate-fire'."
  (interactive)
  (fcuny/org-refile-directly org-default-incubate-file))

(defun fcuny/org-refile-to-technical-dir ()
  "Move the current subtree to a file in the `technical' directory."
  (interactive)
  (fcuny/org-refile-subtree-to-file org-default-technical-dir))

(provide 'fcuny-defuns)