From bbb0017bee364a98e67c9b684386b1d70a2a8c94 Mon Sep 17 00:00:00 2001
From: Ivan Malison <IvanMalison@gmail.com>
Date: Thu, 2 Jan 2025 23:40:27 -0700
Subject: [PATCH] [Emacs] Add org-api code

---
 dotfiles/emacs.d/org-api.el | 91 +++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 dotfiles/emacs.d/org-api.el

diff --git a/dotfiles/emacs.d/org-api.el b/dotfiles/emacs.d/org-api.el
new file mode 100644
index 00000000..82b51546
--- /dev/null
+++ b/dotfiles/emacs.d/org-api.el
@@ -0,0 +1,91 @@
+(let ((current-dir (if load-file-name (file-name-directory load-file-name) "~/.emacs.d/")))
+  (load (expand-file-name "init.el" current-dir)))
+
+(use-package simple-httpd
+  :demand t)
+
+(require 'simple-httpd)
+
+(defun org-api-get-todo-elements-from-filepath (filepath)
+  (let ((todo-elements nil))
+    (with-current-buffer (find-file-noselect filepath)
+      (save-excursion
+        (goto-char (point-min))
+        (while (re-search-forward org-todo-regexp nil t)
+          (let* ((element (org-element-at-point))
+                 (type (org-element-type element)))
+            (when (eq type 'headline)
+              (let ((todo (org-element-property :todo-keyword element)))
+                (when todo
+                  (push element todo-elements))))))))
+    todo-elements))
+
+(defun org-api-get-agenda-todos ()
+  (let* ((today (calendar-gregorian-from-absolute (org-today))))
+    (mapcan 'org-api-get-todo-elements-from-filepath org-agenda-files)))
+
+(defun org-api-get-element-json (element)
+  (let ((todo (org-element-property :todo-keyword element))
+        (title (org-element-property :raw-value element))
+        (tags (org-element-property :tags element))
+        (level (org-element-property :level element))
+        (scheduled (org-element-property :scheduled element))
+        (deadline (org-element-property :deadline element)))
+    `(("todo" . ,todo)
+      ("title" . ,title)
+      ("tags" . ,tags)
+      ("level" . ,level)
+      ("scheduled" . ,(when scheduled (org-format-timestamp scheduled "%Y-%m-%dT%H:%M:%SZ")))
+      ("deadline" . ,(when deadline (org-format-timestamp deadline "%Y-%m-%dT%H:%M:%SZ"))))))
+
+(defun org-api-item-json (item)
+  (let* ((todo (get-text-property 0 'todo-state item))
+        (title (substring-no-properties item))
+        (tags (get-text-property 0 'tags item))
+        (s (get-text-property 0 'ts-date item))
+        (scheduled (when s
+                     (org-format-timestamp (org-time-from-absolute s) "%Y-%m-%dT%H:%M:%SZ") )))
+    `(("todo" . ,todo)
+      ("title" . ,title)
+      ("tags" . ,tags))))
+
+
+(defun org-api-get-scheduled-or-deadlined (day filepath)
+  (with-current-buffer (find-file-noselect filepath)
+    (org-dlet ((date day))
+      (setf org-agenda-current-date date)
+      (nconc (org-agenda-get-deadlines) (org-agenda-get-scheduled)))))
+
+(defun org-api-get-today-agenda ()
+  (let ((day (calendar-current-date)))
+    (mapcan (lambda (filepath) (org-api-get-scheduled-or-deadlined day filepath))
+            org-agenda-files)))
+
+(defservlet get-all-todos application/json ()
+  (insert (json-encode (mapcar 'org-api-get-element-json (org-api-get-agenda-todos)))))
+
+(defservlet get-todays-agenda application/json ()
+  (insert
+   (json-encode
+    (mapcar 'org-api-item-json
+            (org-api-get-today-agenda)))))
+
+(defservlet create-todo application/json (a b c)
+  (org-api-capture (gethash "title" (json-parse-string (cadr (assoc "Content" c))))))
+
+(cl-defun org-api-build-capture-template
+  (content &key (character "d") (heading "Dynamic"))
+    `(,character ,heading entry (file "~/org/inbox.org")
+                 (function (lambda ()
+                             (imalison:make-org-todo-template :content content)))
+                 :immediate-finish t))
+
+(defun org-api-capture (content)
+  (let* ((org-capture-templates (list (org-api-build-capture-template content))))
+    (org-capture nil "d")))
+
+
+(message "Starting http server")
+(setq httpd-port 2025)
+(httpd-start)
+(message "Finished starting http server")