BlockyGrapher/BlockyGrapher.py

410 lines
14 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (c) 2014-18 Richard Hull and contributors
# See LICENSE.rst for details.
# PYTHON_ARGCOMPLETE_OK
import math
import time
import datetime
import random
import urllib.request
import re
import sys
import random
import signal
#from demo_opts import get_device
from luma.core import cmdline, error
from luma.core.render import canvas
from pathlib import Path
from PIL import ImageFont
def make_font(name, size):
return ImageFont.truetype(name, size)
def display_settings(device, args):
"""
Display a short summary of the settings.
:rtype: str
"""
iface = ''
display_types = cmdline.get_display_types()
if args.display not in display_types['emulator']:
iface = f'Interface: {args.interface}\n'
lib_name = cmdline.get_library_for_display_type(args.display)
if lib_name is not None:
lib_version = cmdline.get_library_version(lib_name)
else:
lib_name = lib_version = 'unknown'
import luma.core
version = f'luma.{lib_name} {lib_version} (luma.core {luma.core.__version__})'
return f'Version: {version}\nDisplay: {args.display}\n{iface}Dimensions: {device.width} x {device.height}\n{"-" * 60}'
def get_device(actual_args=None):
"""
Create device from command-line arguments and return it.
"""
if actual_args is None:
actual_args = sys.argv[1:]
parser = cmdline.create_parser(description='luma.examples arguments')
args = parser.parse_args(actual_args)
if args.config:
# load config from file
config = cmdline.load_config(args.config)
args = parser.parse_args(config + actual_args)
# create device
try:
device = cmdline.create_device(args)
print(display_settings(device, args))
return device
except error.Error as e:
parser.error(e)
return None
def sigterm_handler(signum, frame):
sys.exit(0)
def scalepoints(points, blpoints):
if device.height == 32:
h = 31
else:
h = 46
sclpoint = [0] * len(points)
blsclpoint = [0] * len(blpoints)
scl = 1
maxpnt = 0
i = 0
while i <= len(points) -1:
if points[i] > maxpnt:
maxpnt = points[i]
i += 1
while h * scl < maxpnt:
scl += 1
i = 0
while i <= len(points) -1:
sclpoint[i] = int(points[i] / scl)
i += 1
i = 0
while i <= len(blpoints) -1:
blsclpoint[i] = int(blpoints[i] / scl)
i += 1
maxcanv = h * scl
return sclpoint, blsclpoint, maxcanv
def movepoints(points, insertq, blpoints, insertbl, restarts, insertr):
i = 1
tmp = points[0]
tmp2 = 0
points[0] = insertq
while i < len(points):
if i == len(points) - 1:
points[i] = tmp
else:
tmp2 = points[i]
points[i] = tmp
tmp = tmp2
i += 1
i = 1
tmp3 = restarts[0]
tmp4 = False
restarts[0] = insertr
while i < len(restarts):
if i == len(restarts) - 1:
restarts[i] = tmp3
else:
tmp4 = restarts[i]
restarts[i] = tmp3
tmp3 = tmp4
i += 1
i = 1
tmp = blpoints[0]
tmp2 = 0
blpoints[0] = insertbl
while i < len(blpoints):
if i == len(blpoints) - 1:
blpoints[i] = tmp
else:
tmp2 = blpoints[i]
blpoints[i] = tmp
tmp = tmp2
i += 1
i = 1
return points, blpoints, restarts
def extractor(prev, flaunch, url):
try:
data = str(urllib.request.urlopen(url).read()).split("\\n")
count = 0
i = 0
while data[i] != "# TYPE blocky_query_total counter":
i += 1
i += 1
while True:
if data[i] == "# HELP blocky_request_duration_ms Request duration distribution":
break
else:
count += int(re.sub('blocky_query_total{.*?} ', '', data[i]))
i += 1
except urllib.error.URLError as e:
cliout(f"Connection to server failed: {e.reason}", 2)
if flaunch == True:
return -1
else:
return 0, -1
except:
cliout("Extraction (Q) failed.", 2)
if flaunch == True:
return -1
else:
return 0, -1
if flaunch == True:
return count
else:
return count, count - prev
def blextractor(prev, flaunch, url):
try:
data = str(urllib.request.urlopen(url).read()).split("\\n")
count = 0
i = 0
while data[i] != "# TYPE blocky_response_total counter":
i += 1
i += 1
while True:
if "blocky_response_total{reason=\"CACHED\",response_code=\"NOERROR\",response_type=\"CACHED\"}" in data[i]:
break
else:
count += int(re.sub('blocky_response_total{.*?} ', '', data[i]))
i += 1
except urllib.error.URLError as e:
cliout(f"Connection to server failed: {e.reason}", 2)
if flaunch == True:
return -1
else:
return 0, -1
except:
cliout("Extraction (BL) failed.", 2)
if flaunch == True:
return -1
else:
return 0, -1
if flaunch == True:
return count
else:
return count, count - prev
def drawout(sclpo, sclbl, maxcanv, failture, restart, distance, dots):
match device.height:
case 32:
# todo: backport
with canvas(device) as draw:
d1 = 1
d2 = device.width - 66
now = datetime.datetime.now()
while d1 < len(sclpo):
draw.line((d2 + 10, 31 - sclpo[d1 - 1], d2, 31 - sclpo[d1]), fill="white")
d1 += 1
d2 -= 10
draw.text((device.width - 53, device.height - 19), now.strftime("%H:%M"), font=regfont, fill="white")
draw.text((0, 0), str(maxcanv), font=smafont, fill="white")
draw.text((0, device.height / 2 - 4), str(int(maxcanv / 2)), font=smafont, fill="white")
draw.text((0, device.height - 9), "0", font=smafont, fill="white")
if failture:
draw.text((device.width - 50, 0), "\uf071", font=icons, fill="white")
if restart:
draw.text((device.width - 30, 0), "\uf021", font=icons, fill="white")
case 64:
with canvas(device) as draw:
# Blocked (solid) Graph
currpoint = 1
targetpx = 128 - distance
while currpoint < len(sclbl):
if (sclbl[currpoint - 1] < sclbl[currpoint]):
draw.polygon([(targetpx + distance, 47 - sclbl[currpoint - 1]), (targetpx, 47 - sclbl[currpoint]), (targetpx, 47 - sclbl[currpoint - 1])], fill="white")
#cliout(f"RectDBG (less): X1: {targetpx}, Y1: {47 - sclbl[currpoint - 1]}, X2:{targetpx + distance}, Y2: 47",4)
draw.rectangle((targetpx, 47 - sclbl[currpoint - 1], targetpx + distance, 47), fill="white")
else:
draw.polygon([(targetpx + distance, 47 - sclbl[currpoint - 1]), (targetpx + distance, 47 - sclbl[currpoint]), (targetpx, 47 - sclbl[currpoint])], fill="white")
#cliout(f"RectDBG (more): X1: {targetpx}, Y1: {47 - sclbl[currpoint]}, X1: {targetpx + distance}, Y2: 47", 4)
draw.rectangle((targetpx, 47 - sclbl[currpoint], targetpx + distance, 47), fill="white")
currpoint += 1
targetpx -= distance
# Main Graph
currpoint = 1
targetpx = 128 - distance
while currpoint < len(sclpo):
draw.line((targetpx + distance, 47 - sclpo[currpoint - 1], targetpx, 47 - sclpo[currpoint]), fill="white")
if dots == True:
draw.rectangle((targetpx - 1, 47 - sclpo[currpoint] - 1, targetpx + 1, 47 - sclpo[currpoint] + 1), fill="white")
currpoint += 1
targetpx -= distance
# Draw black boxes to make sure that graph will not interfere
draw.rectangle((0, 48, 128, 64), fill="black")
draw.rectangle((0, 0, 6 * len(str(maxcanv)), 9), fill="black")
draw.rectangle((0, 19, 6 * len(str(maxcanv // 2)), 28), fill="black")
draw.rectangle((0, 37, 6, 47), fill="black")
# Numbers on the left
draw.text((0, 0), str(maxcanv), font=smafont, fill="white")
draw.text((0, 19), str(maxcanv // 2), font=smafont, fill="white")
draw.text((0, 37), "0", font=smafont, fill="white")
# Statusbar, non-constant height values are due how fonts render here.
draw.text((75, 45), datetime.datetime.now().strftime("%H:%M"), font=regfont, fill="white")
if failture:
draw.text((2, 50), "\uf071", font=icons, fill="white")
if restart:
draw.text((22, 50), "\uf021", font=icons, fill="white")
case _:
with canvas(device) as draw:
draw.text((0,0), "Display not supported", font=smafont, fill="white")
def getdata(oldtotal, oldbltotal, url):
total, query = extractor(oldtotal, False, url)
bltotal, blquery = blextractor(oldbltotal, False, url)
# Server lifetime counter | Difference | Err? | Restarted?
if query == -1:
cliout("Extractor finished with error.", 1)
return oldtotal, 0, bltotal, 0, True, False
if total < oldtotal:
cliout("Server restart was detected.", 1)
return total, 0, bltotal, 0, False, True
return total, query, bltotal, blquery, False, False
def cliout(data, code):
time = datetime.datetime.now().strftime("%H:%M:%S")
match code:
case 0:
codes = "I"
case 1:
codes = "W"
case 2:
codes = "E"
case 3:
codes = "F"
case 4:
codes = "V"
print(f"[{codes}] [{time}] {data}")
def main():
cliout("Blocky Graph Monitor for OLED v0.9b", 0)
cliout("Nikopol 2024", 0)
cliout("Init...", 0)
# vars spagetti
url = "http://127.0.0.1:4500/metrics"
pointscount = 14
distance = 10
today_last_time = "NaN"
last_hrs = "NaN"
i = 1
failture = False
restart = False
rstate = False
dots = False
lightsoff = False
start = 22
stop = 6
device.contrast(1)
# Load config
try:
filedata = open("config.ini").readlines()
except FileNotFoundError:
f = open("config.ini", "x")
f.write("[source]\nurl = http://127.0.0.1:4500/metrics\n[appearance]\npoints = 14\npointsDistance = 10\ndots = True\n[lightsoff]\nenabled = False\nstart = 23\nstop = 06")
f.close()
cliout("config.ini does not exist. Please edit newly created file and start the program.", 3)
exit()
except:
cliout("Failed to read/write config file. Are permissions correct?", 3)
exit()
while i < len(filedata):
if "url = " in filedata[i]:
url = filedata[i][6:].rstrip()
if "points = " in filedata[i]:
pointscount = int(filedata[i][9:])
if "pointsDistance = " in filedata[i]:
distance = int(filedata[i][17:])
if "dots = True" in filedata[i]:
dots = True
if "enabled = True" in filedata[i]:
lightsoff = True
if "start = " in filedata[i]:
start = int(filedata[i][8:])
if "stop = " in filedata[i]:
stop = int(filedata[i][7:])
i += 1
i = 0
cliout("Config load ok", 0)
pointsmap = [0] * pointscount
blockedmap = [0] * len(pointsmap)
restartmap = [True] * len(pointsmap)
total = extractor(0, True, url)
bltotal = blextractor(0, True, url)
# Show fail on boot time if occurs.
if total == -1:
failture = True
while True:
now = datetime.datetime.now()
today_time = now.strftime("%H:%M")
hrs = now.strftime("%H")
#cliout(f"start is {start}", 1)
if today_time != today_last_time:
#if 1:
today_last_time = today_time
if hrs != last_hrs:
#if 1:
if (int(hrs) < stop and int(hrs) >= start and lightsoff == True):
cliout(f"Lightsoff is enabled and within time range. Screen will be black this hour.", 0)
last_hrs = hrs
# Grab fresh data
cliout("Extracting data...", 0)
total, query, bltotal, blquery, failture, rstate = getdata(total, bltotal, url)
#print(total)
#print(query)
# Now write it to (raw) array and move older data
pointsmap, blockedmap, restartmap = movepoints(pointsmap, query, blockedmap, blquery, restartmap, rstate)
# ...and scale it to screen size
sclpo, sclbl, maxcanv = scalepoints(pointsmap, blockedmap)
# also write restart map
restart = False
while i < len(restartmap):
if restartmap[i] == True:
restart = True
i += 1
i = 0
cliout(f"Done. Current: {query}, Blocked: {blquery}", 0)
if (int(hrs) < stop and int(hrs) >= start and lightsoff == True):
with canvas(device) as draw:
# :troll:
hrs = hrs
else:
drawout(sclpo, sclbl, maxcanv, failture, restart, distance, dots)
time.sleep(1)
if __name__ == "__main__":
try:
print("[I] Preinit...")
device = get_device()
regfont = make_font("TerminusTTF-4.49.3.ttf", 22)
smafont = make_font("TerminusTTF-4.49.3.ttf", 12)
icons = make_font("fontawesome-webfont.ttf", 15)
signal.signal(signal.SIGTERM, sigterm_handler)
main()
except KeyboardInterrupt:
pass