Wallman/wallman_lib.py

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2024-05-27 02:45:23 +02:00
#!/usr/bin/env python3
from os import chdir, getenv, system
import logging
import tomllib
from datetime import datetime, time
from apscheduler.schedulers.blocking import BlockingScheduler
from apscheduler.triggers.cron import CronTrigger
# setup logging
chdir(str(getenv("HOME")) + "/.local/share/wallman/")
logger = logging.getLogger(__name__)
logging.basicConfig(filename="wallman.log", encoding="utf-8", level=logging.DEBUG)
# read config
# a = list(data["changing_times"].values())
# print(a[0])
class ConfigError(Exception):
pass
class _ConfigLib:
def _initialize_config(self) -> dict:
chdir(str(getenv("HOME")) + "/.config/wallman/")
with open("wallman.toml", "rb") as config_file:
data = tomllib.load(config_file)
return data
# a = list(data["changing_times"].values())
# print(a[0])
def __init__(self):
self.config_file: dict = self._initialize_config() # Full config
# Dictionaries
self.config_wallpaper_sets: dict = self.config_file["wallpaper_sets"]
self.config_changing_times: dict = self.config_file["changing_times"]
# Values in Dicts
self.config_wallpaper_sets_enabled: bool = self.config_wallpaper_sets["enabled"]
self.config_used_sets: list = self.config_wallpaper_sets["used_sets"]
self.config_wallpapers_per_set: int = self.config_wallpaper_sets["wallpapers_per_set"]
self.config_total_changing_times: int = len(self.config_changing_times)
class ConfigValidity(_ConfigLib):
def __init__(self):
super().__init__()
self.chosen_wallpaper_set = False
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def _check_wallpapers_per_set_and_changing_times(self) -> None:
# Check if the amount of wallpapers_per_set and given changing times match
if self.config_total_changing_times == self.config_wallpapers_per_set:
logger.debug("The amount of changing times and wallpapers per set is set correctly")
else:
logger.error("The amount of changing times and the amount of wallpapers per set does not match.")
raise ConfigError("Please provide an amount of changing_times equal to wallpapers_per_set.")
def _check_wallpaper_sets_validity(self) -> None:
if len(self.config_wallpaper_sets) != 3:
logger.error("An insufficient amount of parameters for wallpaper_sets has been provided, exiting...")
raise ConfigError("wallpaper_sets should have exactly 3 elements")
def _check_wallpaper_dicts(self)-> None:
# This block checks if a dictionary for each wallpaper set exists
for wallpaper_set in self.config_used_sets:
if wallpaper_set in self.config_file:
logger.debug(f"The dictionary {wallpaper_set} has been found in config.")
else:
logger.error(f"No dictionary {wallpaper_set} has been found in the config.")
raise ConfigError(f"The dictionary {wallpaper_set} has not been found in the config")
def _check_wallpaper_amount(self) -> None:
# This block checks if if each wallpaper set dictionary provides enough wallpapers to satisfy wallpapers_per_set
for wallpaper_set in self.config_used_sets:
if len(self.config_file[wallpaper_set]) == self.config_wallpapers_per_set:
logger.debug(f"Dictionary {wallpaper_set} has sufficient values.")
else:
logger.error(f"Dictionary {wallpaper_set} does not have sufficient entries")
raise ConfigError(f"Dictionary {wallpaper_set} does not have the correct amount of entries")
def validate_config(self) -> None:
self._check_wallpapers_per_set_and_changing_times()
self._check_wallpaper_sets_validity()
self._check_wallpaper_dicts()
self._check_wallpaper_amount()
logger.debug("The config file has been validated successfully (No Errors)")
class WallpaperLogic(_ConfigLib):
def __init__(self):
super().__init__()
# Returns a list of a split string that contains a changing time from the config file
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def _clean_times(self, desired_time) -> list:
unclean_times = list(self.config_changing_times.values())[desired_time]
return unclean_times.split(":")
def _choose_wallpaper_set(self) -> None:
from random import choice as choose_from
self.chosen_wallpaper_set = choose_from(self.config_used_sets)
self.wallpaper_list = list(self.config_file[self.chosen_wallpaper_set].values())
logger.debug(f"Chose wallpaper set {self.chosen_wallpaper_set}")
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# Verify if a given time is in a given range
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def _time_in_range(self, start, end, x) -> bool:
if start <= end:
return start <= x <= end
else:
return start <= x or x < end
def set_wallpaper_by_time(self) -> None:
# Ensure use of a consistent wallpaper set
if self.chosen_wallpaper_set is False:
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self._choose_wallpaper_set()
for time_range in range(self.config_total_changing_times - 1):
clean_time = self._clean_times(time_range)
clean_time_two = self._clean_times(time_range + 1)
# Check if the current time is between a given and the following changing time and if so, set that wallpaper. If not, keep trying.
if self._time_in_range(time(int(clean_time[0]), int(clean_time[1]), int(clean_time[2])), time(int(clean_time_two[0]), int(clean_time_two[1]), int(clean_time_two[2])), datetime.now().time()):
system(f"feh --bg-scale --no-fehbg {self.wallpaper_list[time_range]}")
return
else:
continue
system(f"feh --bg-scale --no-fehbg {self.wallpaper_list[-1]}")
def schedule_wallpapers(self):
scheduler = BlockingScheduler()
# Create a scheduled job for every changing time
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for changing_time in range(len(self.config_changing_times)):
clean_time = self._clean_times(changing_time)
scheduler.add_job(self.set_wallpaper_by_time, trigger=CronTrigger(hour=clean_time[0], minute=clean_time[1], second=clean_time[2]))
scheduler.start()
logger.info("The scheduler has been started.")