From 5966df1a346e834ae13278ee912597ed107f7837 Mon Sep 17 00:00:00 2001
From: Jaidyn Ann <jadedctrl@teknik.io>
Date: Sun, 25 Jul 2021 11:28:07 -0500
Subject: [PATCH] Print a 'date divider' when the day changes

I.E., if one message is sent on 2021-05-02 and the next on 2021-05-03, a
divider displaying the new date is printed before the second message.
---
 application/views/ConversationView.cpp |  2 +-
 application/views/RenderView.cpp       | 23 ++++++++++++++++++++---
 application/views/RenderView.h         |  6 +++++-
 3 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/application/views/ConversationView.cpp b/application/views/ConversationView.cpp
index 8721116..c3deda7 100644
--- a/application/views/ConversationView.cpp
+++ b/application/views/ConversationView.cpp
@@ -352,7 +352,7 @@ ConversationView::_AppendMessage(BMessage* msg)
 		}
 
 		if (sender_name.IsEmpty() == true) {
-			fReceiveView->AppendGenericMessage(body.String());
+			fReceiveView->AppendGeneric(body.String());
 			continue;
 		}
 
diff --git a/application/views/RenderView.cpp b/application/views/RenderView.cpp
index 1d93914..d6130f6 100644
--- a/application/views/RenderView.cpp
+++ b/application/views/RenderView.cpp
@@ -10,7 +10,9 @@
 
 RenderView::RenderView(const char* name)
 	:
-	RunView(name)
+	RunView(name),
+	fLastDay(364),
+	fLastYear(64)
 {
 }
 
@@ -32,7 +34,7 @@ RenderView::AppendMessage(const char* nick, const char* message,
 
 
 void
-RenderView::AppendGenericMessage(const char* message)
+RenderView::AppendGeneric(const char* message)
 {
 	if (BString(message).IsEmpty() == true)	return;
 	AppendTimestamp(time(NULL));
@@ -44,11 +46,26 @@ RenderView::AppendGenericMessage(const char* message)
 void
 RenderView::AppendTimestamp(time_t time)
 {
+	tm* tm = localtime(&time);
+
+	// If day changed, print date divider
+	if (fLastDay < tm->tm_yday || fLastYear < tm->tm_year) {
+		char datestamp[11] = { '\0' };
+		strftime(datestamp, 10, "%Y-%m-%d", tm);
+		BString stamp("――― %date% ―――\n");
+		stamp.ReplaceAll("%date%", datestamp);
+
+		Append(stamp.String(), ui_color(B_PANEL_TEXT_COLOR), B_ITALIC_FACE);
+
+		fLastDay = tm->tm_yday;
+		fLastYear = tm->tm_year;
+	}
+
 	if (time == 0) {
 		Append("[xx:xx] ", ui_color(B_LINK_HOVER_COLOR));
 		return;
 	}
 	char timestamp[9] = { '\0' };
-	strftime(timestamp, 8, "[%H:%M] ", localtime(&time));
+	strftime(timestamp, 8, "[%H:%M] ", tm);
 	Append(timestamp, ui_color(B_LINK_HOVER_COLOR));
 }
diff --git a/application/views/RenderView.h b/application/views/RenderView.h
index b880e2b..237b5ad 100644
--- a/application/views/RenderView.h
+++ b/application/views/RenderView.h
@@ -14,8 +14,12 @@ public:
 
 		void	AppendMessage(const char* nick, const char* message,
 							  rgb_color nameColor, time_t time = 0);
-		void	AppendGenericMessage(const char* message);
+		void	AppendGeneric(const char* message);
 		void	AppendTimestamp(time_t time = 0);
+
+private:
+		int fLastDay;
+		int fLastYear;
 };
 
 #endif // _RENDER_VIEW_H