From 9b04860a22b30db746bbe4cd3376383cc19432ea Mon Sep 17 00:00:00 2001
From: Craig Jennings <c@cjennings.net>
Date: Wed, 27 May 2026 15:08:52 -0500
Subject: refactor(prog): open daily-prep respecting the window split

C-c p d (cj/open-project-daily-prep) always forced the prep doc into another window. I switched it to cj/--find-file-respecting-split, the same helper the sibling C-c p t (project todo) uses: it opens the other window when the frame is split and reuses the current window when it isn't. The two project-open commands now behave the same way.
---
 modules/prog-general.el                            |  7 ++++---
 tests/test-prog-general-open-project-daily-prep.el | 21 ++++++++++++---------
 2 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/modules/prog-general.el b/modules/prog-general.el
index e8d48b70..e09c3f40 100644
--- a/modules/prog-general.el
+++ b/modules/prog-general.el
@@ -146,15 +146,16 @@ buffer the user is looking at."
 	(find-file-other-window file)))
 
 (defun cj/open-project-daily-prep ()
-  "Open the current Projectile project's daily prep in another window.
+  "Open the current Projectile project's daily prep, respecting the split.
 The prep file is inbox/today-prep.org under the project root (a stable
 symlink to the dated prep doc).  Project-scoped: a project without one gets a
-message.  Opens in another window so it sits beside the current work."
+message.  Opens in the other window when the frame is split and reuses the
+current window otherwise, matching `cj/open-project-root-todo'."
   (interactive)
   (if-let ((root (projectile-project-root)))
       (let ((file (expand-file-name "inbox/today-prep.org" root)))
         (if (file-exists-p file)
-            (find-file-other-window file)
+            (cj/--find-file-respecting-split file)
           (message "No inbox/today-prep.org in project: %s" root)))
     (message "Not in a Projectile project")))
 
diff --git a/tests/test-prog-general-open-project-daily-prep.el b/tests/test-prog-general-open-project-daily-prep.el
index 9a38757a..07895ed4 100644
--- a/tests/test-prog-general-open-project-daily-prep.el
+++ b/tests/test-prog-general-open-project-daily-prep.el
@@ -2,12 +2,14 @@
 
 ;;; Commentary:
 ;; `cj/open-project-daily-prep' (C-c p d) opens inbox/today-prep.org under the
-;; current Projectile project root, in another window.  It is project-scoped:
-;; projects without a prep file get a message instead.  `projectile-project-root'
-;; (external project state) and `find-file-other-window' (the window/visit
-;; boundary) are stubbed; real temp directories drive the file-exists check, and
-;; the message branches are checked via the command's return value rather than
-;; by stubbing `message'.
+;; current Projectile project root, via `cj/--find-file-respecting-split' so it
+;; lands in the other window when the frame is split and reuses the current
+;; window otherwise (matching `cj/open-project-root-todo').  It is
+;; project-scoped: projects without a prep file get a message instead.
+;; `projectile-project-root' (external project state) and
+;; `cj/--find-file-respecting-split' (the window/visit boundary) are stubbed;
+;; real temp directories drive the file-exists check, and the message branches
+;; are checked via the command's return value rather than by stubbing `message'.
 
 ;;; Code:
 
@@ -16,8 +18,8 @@
 (add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
 (require 'prog-general)
 
-(ert-deftest test-prog-general-daily-prep-opens-existing-in-other-window ()
-  "Normal: in a project with a prep file, open it in another window."
+(ert-deftest test-prog-general-daily-prep-opens-existing-respecting-split ()
+  "Normal: in a project with a prep file, open it respecting the split."
   (let* ((root (file-name-as-directory (make-temp-file "cj-prep-" t)))
          (prep (expand-file-name "inbox/today-prep.org" root))
          opened)
@@ -26,7 +28,8 @@
           (make-directory (expand-file-name "inbox" root) t)
           (write-region "" nil prep)
           (cl-letf (((symbol-function 'projectile-project-root) (lambda () root))
-                    ((symbol-function 'find-file-other-window) (lambda (f) (setq opened f))))
+                    ((symbol-function 'cj/--find-file-respecting-split)
+                     (lambda (f) (setq opened f))))
             (cj/open-project-daily-prep))
           (should (equal opened prep)))
       (delete-directory root t))))
-- 
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