From 84547002a57ed05f1d874ad607bd29816c1d8e30 Mon Sep 17 00:00:00 2001
From: hmjsp <hmjsp@liber8bits.com>
Date: Fri, 19 Dec 2025 09:32:26 +0000
Subject: make timer accurate; add non blocking input

- timer accurate and quits when 'q' is pressed, in a non blocking
  manner, polling at 120Hz
- some minor refactoring in inputs.py too
---
 main.py | 44 +++++++++++++++++++++++++++++++-------------
 1 file changed, 31 insertions(+), 13 deletions(-)

(limited to 'main.py')

diff --git a/main.py b/main.py
index 2ce1450..93c6a5d 100644
--- a/main.py
+++ b/main.py
@@ -2,8 +2,12 @@ import pygal
 import csv
 import time
 import datetime
+import datetime
 import hashlib
 from collections import OrderedDict
+import termios
+import tty
+import sys
 import inputs
 import formatting as f
 
@@ -29,23 +33,37 @@ if option == 't':
         print("timer length (in minutes)? ", end="", flush=True)
         timer_length = inputs.get_pos_int()
 
-    # need timer to be accurate; sleep until next second start? processing time
-    # although small will still add to time so needs to be avoided
-    # timer loop
-    time_left = timer_length #* 60
-    time_start = time.time()
-    while time_left:
+    time_left = timer_length
+    start = datetime.datetime.now()
+    end = start + datetime.timedelta(seconds=time_left) # change to mins in final
+    accum = 0
+    timeout = 1/120 # 120Hz refresh
+
+    old_settings = termios.tcgetattr(sys.stdin)
+    tty.setcbreak(sys.stdin.fileno())
+    while True:
+        now = datetime.datetime.now()
+        time_left = end - now
+        if time_left.total_seconds() <= 0:
+            break
+
+        ch = inputs.getch_nb(timeout)
+        if ch == 'q':
+            print("exited early!")
+            break
         # see https://gist.github.com/fnky/458719343aabd01cfb17a3a4f7296797
-        print("\x1b[2K\r" + f.sec_to_min(time_left), end="", flush=True)
-        time_left -= 1
-        time.sleep(1)
+        print("\x1b[2K\r" + inputs.delta_to_HM(time_left), end="", flush=True)
+        accum += timeout
+        if accum >= 1:
+            accum = 0
+    termios.tcsetattr(sys.stdin, termios.TCSADRAIN, old_settings)
 
     print("\nfocus session finished!\nlogging...")
     session = OrderedDict()
-    session["id"] = hashlib.sha256(str(time_start).encode('utf8')).hexdigest()
-    session["date"] = time.strftime("%Y-%m-%d")
-    session["start"] = time.strftime("%H:%M")
-    session["elapsed"] = timer_length * 60
+    session["id"] = hashlib.sha256(str(start).encode('utf8')).hexdigest()
+    session["date"] = start.strftime("%Y-%m-%d")
+    session["start"] = start.strftime("%H:%M")
+    session["elapsed"] = int(timer_length - time_left.total_seconds())
     session["type"] = "focus"
     session["tag"] = tag
     session["timer"] = "timer"
-- 
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