From ad9e7cd5117c965222aae708f660e56d537914fc Mon Sep 17 00:00:00 2001
From: Robin Haberkorn <rhaberkorn@fmsbw.de>
Date: Mon, 6 Oct 2025 00:48:48 +0300
Subject: imported all of my Github gists from
 https://gist.github.com/rhaberkorn

---
 gtimelog-stats.lua | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100755 gtimelog-stats.lua

(limited to 'gtimelog-stats.lua')

diff --git a/gtimelog-stats.lua b/gtimelog-stats.lua
new file mode 100755
index 0000000..abf3bff
--- /dev/null
+++ b/gtimelog-stats.lua
@@ -0,0 +1,52 @@
+#!/usr/bin/lua5.2
+-- Small helper script parsing gtimelog's timelog.txt to summarize the time spent on specific tasks.
+-- It takes a Lua pattern and optional start date and prints the sum of all timelog entries after the start date matching the pattern.
+
+local function parse_date(str)
+	local t = {hour = 0, min = 0}
+	t.day, t.month, t.year = str:match("^(%d+)%.(%d+)%.(%d+)$")
+	return os.time(t) 
+end
+
+local pattern = arg[1] or ""
+local time_begin = arg[2] and parse_date(arg[2]) or 0
+local time_end = arg[3] and parse_date(arg[3]) or os.time()
+
+local log = io.open(os.getenv("HOME").."/.local/share/gtimelog/timelog.txt")
+
+local entries = {}
+for line in log:lines() do
+	local t, date_str, msg = {}
+	date_str, t.year, t.month, t.day, t.hour, t.min, msg = line:match("^((%d+)%-(%d+)%-(%d+)) (%d+):(%d+): (.*)$")
+	if msg then table.insert(entries, {date_str = date_str, time = os.time(t), msg = msg}) end
+end
+
+log:close()
+
+local sum, sum_day, arrived = 0, 0
+for i, entry in ipairs(entries) do
+	if entry.msg:sub(-2) ~= "**" and os.difftime(entry.time, time_begin) >= 0 then
+		if i > 1 and entry.date_str ~= entries[i-1].date_str and sum_day > 0 then
+			-- print stats of last day
+			-- FIXME: Does not always print last day
+			print(string.format("%s: %d hours, %d minutes, %d seconds",
+			                    entries[i-1].date_str,
+			                    sum_day / (60*60), (sum_day % (60*60))/60, sum_day % 60))
+			sum_day = 0
+		end
+
+		if entry.msg:sub(1, 7) == "arrived" then
+			arrived = true
+		elseif arrived then
+			if os.difftime(entry.time, time_end + 24*60*60) >= 0 then break end
+
+			if entry.msg:lower():find("^"..pattern) then
+				sum_day = sum_day + os.difftime(entry.time, entries[i-1].time)
+				sum = sum + os.difftime(entry.time, entries[i-1].time)
+			end
+		end
+	end
+end
+
+print(string.format("Sum: %d hours, %d minutes, %d seconds",
+                    sum / (60*60), (sum % (60*60))/60, sum % 60))
-- 
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