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webcam.py
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webcam.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import sys
import time
try:
from jinja2 import Template
jinja = True
except:
jinja = False
print("could not import jinja2")
pass
import base64
import requests
import datetime
import subprocess
from picamera import PiCamera
# config
stamp = datetime.datetime.now().strftime("%y%m%d-%H%M%S")
notes_url = "https://notes.julina.ch"
org_image = "/home/pi/nas/latest.jpg"
new_image = f"/home/pi/nas/{stamp}.jpg"
now = datetime.datetime.now()
weekday = now.isoweekday()
weekdays = (1,2,3,4,5)
template_path = f"/home/pi/home-lights/template.jinja2"
def check_path():
if not os.path.exists(org_image):
return False
return True
# note data
def getData(ident):
url = f"{notes_url}/{ident}"
try:
response = requests.get(url, timeout=5).json()
return response["sys"]["sunset"], response["sys"]["sunrise"]
except Exception as err:
print(f"WARN: Could not get {ident} data: {err}")
return None, None
def sunshine():
sunset, sunrise = getData("weather")
if sunrise and sunset:
sun_am = datetime.datetime.fromtimestamp(sunrise) - datetime.timedelta(hours = 0.5)
sun_pm = datetime.datetime.fromtimestamp(sunset) + datetime.timedelta(hours = 0.5)
if now < sun_am:
print(f"{now}: too early: {sun_am}")
return False
if now > sun_pm:
print(f"{now}: too late: {sun_pm}")
return False
return True
def make_picture(location=org_image):
camera = PiCamera()
camera.resolution = (1920, 1080)
camera.framerate = 10
camera.zoom = (0.3,0.1,0.8,0.8)
camera.start_preview()
time.sleep(15)
camera.capture(location)
camera.stop_preview()
if __name__ == "__main__":
if not check_path():
sys.exit(1)
if sunshine():
make_picture()
if weekday in weekdays:
subprocess.run(f"sudo cp {org_image} {new_image}", shell=True)
if jinja:
stamp = datetime.datetime.now().strftime("%d.%m.%Y %H:%M")
with open(template_path, "r") as template_file:
template = Template(template_file.read())
html_template_string = template.render(timestamp=stamp)
print(html_template_string)
with open("/home/pi/nas/index.html", "w") as result_file:
result_file.write(html_template_string)