From fbc9060f8aa60132c3562ff01b79c48686122f51 Mon Sep 17 00:00:00 2001
From: Teddy Wing
Date: Thu, 7 Dec 2023 22:24:36 +0100
Subject: prr-ui: Comment: Exit early when Prr buffer doesn't exist

If `PrrStart` hasn't been run yet, we should error and stop execution so
we don't insert newlines and start insert mode in the current buffer.

Eventually, we should set it up so `PrrStart` is called automatically
from `PrrComment` if it hasn't been already.
---
 bundle/prr-ui/autoload/prr_ui.vim | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/bundle/prr-ui/autoload/prr_ui.vim b/bundle/prr-ui/autoload/prr_ui.vim
index f3a6ea7..1d3246a 100644
--- a/bundle/prr-ui/autoload/prr_ui.vim
+++ b/bundle/prr-ui/autoload/prr_ui.vim
@@ -866,8 +866,14 @@ endfunction
 function! prr_ui#Comment()
 	let current_line = getline('.')
 
-	" Open the existing Prr review file in a new split.
-	sbuffer prr
+	try
+		" Open the existing Prr review file in a new split.
+		sbuffer prr
+	catch
+		" TODO: Run prr-start.
+		echoerr 'PrrComment: No Prr buffer available'
+		return
+	endtry
 
 	call search(current_line)
 
-- 
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