Add obsidian-apply-template interactive command

Previously the daily notes command used `obsidian-apply-template`,
but it is internal, so it gets the `obsidian--apply-template`.

For the interactive version, the original `obsidian-apply-tempalte`
is used. It list the template files from the templates directory
without extension, like `Daily Note Template`.
If an existing file name is chosen, it is applied, inserted
to the beginning of the current buffer.

README.org

@@ -59,6 +59,9 @@ Put this in your ~init.el~:
   (add-hook
    'obsidian-mode-hook
    (lambda ()
+     ;; apply a template from the directory specified by obsidian-tempaltes-directory
+     ;("C-c C-t" . obsidian-apply-template)
+
      ;; Replace standard command with Obsidian.el's in obsidian vault:
      (local-set-key (kbd "C-c C-o") 'obsidian-follow-link-at-point)
 
@@ -101,6 +104,8 @@ Put this in your ~init.el~:
     ;; Daily Note template name - requires a template directory. Default: Daily Note Template.md
     ;(setq obsidian-daily-note-template "Daily Note Template.md")
     :bind (:map obsidian-mode-map
+    ;; apply a template from the directory specified by obsidian-tempaltes-directory
+    ;("C-c C-t" . obsidian-apply-template)
     ;; Replace C-c C-o with Obsidian.el's implementation. It's ok to use another key binding.
     ("C-c C-o" . obsidian-follow-link-at-point)
     ;; Jump to backlinks
@@ -262,6 +267,9 @@ Use ~obsidian-move-file~ to move current note to another folder:
 Obsidian.el has a basic template support, where the Obsidian app's template placeholders can be used,
 without customization. {{title}}, {{date}}, and {{time}} can be used. {{title}} is the name of the file without the extension.
 
+While the daily notes can have an automatic template (see the config examples), for every other file
+templates must be applied manually, by calling `obsidian-apply-template`.
+
 *** Development tasks
 - [X] Specify Obsidian folder and save it in variables
 - [X] Enumerate files in the Obsidian folder and save a list

obsidian.el

@@ -488,7 +488,12 @@ In the `obsidian-inbox-directory' if set otherwise in `obsidian-directory' root.
     (find-file (expand-file-name clean-filename) t)
     (save-buffer)
     (add-to-list 'obsidian-files-cache clean-filename)))
-
+
+
+(defun obsidian--template-path (filename)
+  "Returns the full path for the filename"
+  (s-concat obsidian-directory "/" obsidian-templates-directory "/"filename))
+
 ;;;###autoload
 (defun obsidian-daily-note ()
   "Create new obsidian daily note.
@@ -504,7 +509,7 @@ in `obsidian-directory' root.
     (save-buffer)
     (if (and obsidian-templates-directory obsidian-daily-note-template (eq (buffer-size) 0))
       (progn
-        (obsidian-apply-template (s-concat obsidian-directory "/" obsidian-templates-directory "/" obsidian-daily-note-template))
+        (obsidian--apply-template (obsidian--template-path obsidian-daily-note-template))
         (save-buffer)))
     (add-to-list 'obsidian-files-cache clean-filename)))
 
@@ -700,7 +705,7 @@ See `markdown-follow-link-at-point' and
          (_ (-map (lambda (f) (puthash f (obsidian--expand-file-name f) dict)) coll)))
     dict))
 
-(defun obsidian-apply-template (template-filename)
+(defun obsidian--apply-template (template-filename)
   "Apply the template for the current buffer. Template vars: {{title}}, {{date}}, and {{time}}"
   (let* ((title (file-name-sans-extension (file-name-nondirectory buffer-file-name)))
          (date (format-time-string "%Y-%m-%d"))
@@ -731,6 +736,29 @@ See `markdown-follow-link-at-point' and
           (find-file target))
       (message "No backlinks found."))))
 
+(defun obsidian--find-template-files ()
+  "Finds (returns) all .md files from the template directory"
+    (if obsidian-templates-directory
+(let* ((templates-directory  (s-concat obsidian-directory "/" obsidian-templates-directory))
+        (all-files (directory-files templates-directory))
+        (markdown-files (-filter '(lambda (filename) (not (s-match-strings-all filename ".*\.md"))) all-files)))
+        markdown-files)
+        nil))
+
+;;;###autoload
+(defun obsidian-apply-template ()
+  "Select a template and apply it for the current buffer"
+  (interactive)
+  (let* ((templates (obsidian--find-template-files))
+         (choices (-map 'file-name-sans-extension (-sort #'string< templates))))
+    (if choices
+        (let* ((choice (completing-read "Template: " choices))
+               (template (obsidian--template-path (s-concat choice ".md"))))
+          (if (f-exists-p template)
+            (obsidian--apply-template template)
+            (message "Template file not found")))
+    (message "No template found."))))
+
 ;;;###autoload
 (defun obsidian-search ()
   "Search Obsidian vault for input."