pyShelf/install

#!/usr/bin/python3.8
import json
import pathlib
import platform

import psutil
from src.backend.lib.display import TerminalDisplay


class Configuration:
    def __init__(self):
        self._cp = pathlib.Path("config.json")
        self._data = self.open_file()
        self.system = platform.system()

    def open_file(self):
        """
        Try to open and then backup the configuration file.
        Fail and return false if initial configuration is not found.
        # TODO: More specific error handling
        """
        try:
            with open(str(self._cp), "r") as read_file:
                data = json.load(read_file)
            with open("config.backup.json", "w") as backup_file:
                json.dump(data, backup_file)
            return data
        except Exception as e:
            print(e)
            return False

    def write_file(self, data):
        """
        Write the provided data to the new configuration file
        """
        with open(str(self._cp), "w") as write_file:
            json.dump(data, write_file)
        return True


class RequiredServices:
    @staticmethod
    def check_ps(service_list):
        breakpoint()
        ps = psutil
        passed = []
        for p in ps.process_iter(attrs=["name", "exe", "cmdline"]):
            for s in service_list:
                if s == p.name:
                    passed.append(s)
                    return
        if len(passed) == len(service_list):
            return True
        else:
            return failed


config = Configuration().open_file()
install_answers = TerminalDisplay().installer()
for key in install_answers:
    config[key["name"]] = key["answer"]
Configuration().write_file(config)

# Start checking for our list of required services
service_list = ["postgresql", "nginx", "httpd"]
req = RequiredServices.check_ps(service_list)