138 lines
4.5 KiB
Python
138 lines
4.5 KiB
Python
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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"""
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Json settings parser. Currently in alpha!
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Copyright by aceisace
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"""
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import json
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from os import chdir #Ad-hoc
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# TODO:
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# Check of jsmin can/should be used to parse jsonc settings file
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# Remove check of fixed settings file location. Ask user to specify path
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# to settings file
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from os import path
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class settings:
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"""Load and validate settings from the settings file"""
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__supported_languages = ['en', 'de', 'ru', 'it', 'es', 'fr', 'el', 'sv', 'nl',
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'pl', 'ua', 'nb', 'vi', 'zh_tw', 'zh-cn', 'ja', 'ko']
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__supported_units = ['metric', 'imperial']
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__supported_hours = [12, 24]
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__supported_display_orientation = ['normal', 'upside_down']
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__supported_models = [
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'epd_7_in_5_v2_colour', 'epd_7_in_5_v2',
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'epd_7_in_5_colour', 'epd_7_in_5',
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'epd_5_in_83_colour','epd_5_in_83',
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'epd_4_in_2_colour', 'epd_4_in_2'
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]
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def __init__(self, settings_file_path):
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"""Load settings from path (folder or settings.json file)"""
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try:
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if settings_file_path.endswith('settings.json'):
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folder = settings_file_path.split('/settings.json')[0]
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else:
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folder = settings_file_path
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chdir(folder)
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with open("settings.json") as file:
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self.raw_settings = json.load(file)
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except FileNotFoundError:
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print('No settings file found in specified location')
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try:
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self.language = self.raw_settings['language']
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if self.language not in self.__supported_languages or type(self.language) != str:
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print('Unsupported language: {}!. Switching to english'.format(language))
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self.language = 'en'
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self.units = self.raw_settings['units']
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if self.units not in self.__supported_units or type(self.units) != str:
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print('Units ({}) not supported, using metric units.'.format(units))
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self.units = 'metric'
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self.hours = self.raw_settings['hours']
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if self.hours not in self.__supported_hours or type(self.hours) != int:
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print('Selected hours: {} not supported, using 24-hours'.format(hours))
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self.hours = '24'
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self.model = self.raw_settings['model']
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if self.model not in self.__supported_models or type(self.model) != str:
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print('Model: {} not supported. Please select a valid option'.format(model))
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print('Switching to 7.5" ePaper black-white (v1) (fallback)')
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self.model = 'epd_7_in_5'
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self.calibration_hours = self.raw_settings['calibration_hours']
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if not self.calibration_hours or type(self.calibration_hours) != list:
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print('Invalid calibration hours: {}'.format(calibration_hours))
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print('Using default option, 0am,12am,6pm')
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self.calibration_hours = [0,12,18]
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self.display_orientation = self.raw_settings['display_orientation']
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if self.display_orientation not in self.__supported_display_orientation or type(
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self.display_orientation) != str:
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print('Invalid ({}) display orientation.'.format(display_orientation))
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print('Switching to default orientation, normal-mode')
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self.display_orientation = 'normal'
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### Check if empty, If empty, set to none
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for sections in self.raw_settings['panels']:
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if sections['location'] == 'top':
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self.top_section = sections['type']
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self.top_section_config = sections['config']
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elif sections['location'] == 'middle':
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self.middle_section = sections['type']
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self.middle_section_config = sections['config']
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elif sections['location'] == 'bottom':
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self.bottom_section = sections['type']
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self.bottom_section_config = sections['config']
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print('settings loaded')
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except Exception as e:
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print(e.reason)
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def module_init(self, module_name):
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"""Get all data from settings file by providing the module name"""
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if module_name == self.top_section:
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config = self.top_section_config
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elif module_name == self.middle_section:
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config = self.middle_section_config
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elif module_name == self.bottom_section:
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config = self.bottom_section_config
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else:
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print('Invalid module name!')
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config = None
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for module in self.raw_settings['panels']:
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if module_name == module['type']:
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location = module['location']
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return config, location
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def which_modules(self):
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"""Returns a list of modules (from settings file) which should be loaded
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on start"""
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lst = [self.top_section, self.middle_section, self.bottom_section]
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return lst
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def main():
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print('running settings parser as standalone...')
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if __name__ == '__main__':
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main()
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