From 94f6701224fda9d770f195a03d4d735beda0ab49 Mon Sep 17 00:00:00 2001
From: Ske <voltasalt@gmail.com>
Date: Sun, 15 Jul 2018 17:00:40 +0200
Subject: [PATCH] Display delta time between switches

---
 bot/pluralkit/commands.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/bot/pluralkit/commands.py b/bot/pluralkit/commands.py
index 7ba98951..882535a7 100644
--- a/bot/pluralkit/commands.py
+++ b/bot/pluralkit/commands.py
@@ -210,7 +210,8 @@ async def system_fronthistory(conn, message, args):
             return False, "Can't find system \"{}\".".format(args[0])
     
     lines = []
-    for timestamp, members in await get_front_history(conn, system["id"], count=10):
+    front_history = await get_front_history(conn, system["id"], count=10)
+    for i, (timestamp, members) in enumerate(front_history):
         # Special case when no one's fronting
         if len(members) == 0:
             name = "*nobody*"
@@ -221,7 +222,11 @@ async def system_fronthistory(conn, message, args):
         time_text = timestamp.isoformat(sep=" ", timespec="seconds")
         rel_text = humanize.naturaltime(timestamp)
 
-        lines.append("**{}** ({}, {})".format(name, time_text, rel_text))
+        delta_text = ""
+        if i > 0:
+            last_switch_time = front_history[i-1][0]
+            delta_text = ", for {}".format(humanize.naturaldelta(timestamp - last_switch_time))
+        lines.append("**{}** ({}, {}{})".format(name, time_text, rel_text, delta_text))
 
     embed = make_default_embed("\n".join(lines) or "(none)")
     embed.title = "Past switches"