Refactored code

src/cpl/application/application_abc.py

@@ -0,0 +1,32 @@
+from abc import ABC, abstractmethod
+from typing import Type, Optional
+
+from cpl.application.application_host_abc import ApplicationHostABC
+from cpl.application.startup_abc import StartupABC
+from cpl.configuration.configuration_abc import ConfigurationABC
+from cpl.dependency_injection.service_provider_base import ServiceProviderABC
+
+
+class ApplicationABC(ABC):
+
+    @abstractmethod
+    def __init__(self):
+        self._startup: Optional[StartupABC] = None
+        self._app_host: Optional[ApplicationHostABC] = None
+        self._services: Optional[ServiceProviderABC] = None
+        self._configuration: Optional[ConfigurationABC] = None
+
+    def use_startup(self, startup: Type[StartupABC]):
+        self._startup = startup()
+
+    def build(self):
+        if self._startup is None:
+            print('Startup is empty')
+            exit()
+
+        self._app_host = self._startup.create_application_host()
+        self._configuration = self._startup.create_configuration()
+        self._services = self._startup.create_services()
+
+    @abstractmethod
+    def run(self): pass

src/cpl/application/application_host.py

@@ -0,0 +1,42 @@
+import atexit
+from datetime import datetime
+
+from cpl.application.application_host_abc import ApplicationHostABC
+from cpl.application.application_runtime import ApplicationRuntime
+from cpl.application.application_runtime_abc import ApplicationRuntimeABC
+from cpl.configuration.configuration import Configuration
+from cpl.configuration.configuration_abc import ConfigurationABC
+from cpl.console.console import Console
+from cpl.dependency_injection.service_provider import ServiceProvider
+from cpl.dependency_injection.service_provider_base import ServiceProviderABC
+
+
+class ApplicationHost(ApplicationHostABC):
+
+    def __init__(self):
+        ApplicationHostABC.__init__(self)
+
+        # Init
+        self._config = Configuration()
+        self._app_runtime = ApplicationRuntime(self._config)
+        self._services = ServiceProvider(self._app_runtime)
+
+        # Set vars
+        self._start_time: datetime = datetime.now()
+        self._end_time: datetime = datetime.now()
+
+        atexit.register(Console.close)
+
+    @property
+    def configuration(self) -> ConfigurationABC:
+        return self._config
+
+    @property
+    def application_runtime(self) -> ApplicationRuntimeABC:
+        return self._app_runtime
+
+    @property
+    def services(self) -> ServiceProviderABC:
+        return self._services
+
+    def create(self): pass

src/cpl/application/application_host_abc.py

@@ -0,0 +1,23 @@
+from abc import ABC, abstractmethod
+
+from cpl.application.application_runtime_abc import ApplicationRuntimeABC
+from cpl.configuration.configuration_abc import ConfigurationABC
+from cpl.dependency_injection.service_provider_base import ServiceProviderABC
+
+
+class ApplicationHostABC(ABC):
+
+    @abstractmethod
+    def __init__(self): pass
+
+    @property
+    @abstractmethod
+    def configuration(self) -> ConfigurationABC: pass
+
+    @property
+    @abstractmethod
+    def application_runtime(self) -> ApplicationRuntimeABC: pass
+
+    @property
+    @abstractmethod
+    def services(self) -> ServiceProviderABC: pass

src/cpl/application/application_runtime.py

@@ -0,0 +1,38 @@
+from datetime import datetime
+
+from cpl.application.application_runtime_abc import ApplicationRuntimeABC
+from cpl.configuration.configuration_abc import ConfigurationABC
+
+
+class ApplicationRuntime(ApplicationRuntimeABC):
+
+    def __init__(self, config: ConfigurationABC):
+        ApplicationRuntimeABC.__init__(self)
+
+        self._app_configuration = config
+        self._start_time: datetime = datetime.now()
+        self._end_time: datetime = datetime.now()
+
+    @property
+    def configuration(self) -> ConfigurationABC:
+        return self._app_configuration
+
+    @property
+    def start_time(self) -> datetime:
+        return self._start_time
+
+    @start_time.setter
+    def start_time(self, start_time: datetime):
+        self._start_time = start_time
+
+    @property
+    def end_time(self) -> datetime:
+        return self._end_time
+
+    @end_time.setter
+    def end_time(self, end_time: datetime):
+        self._end_time = end_time
+
+    @property
+    def date_time_now(self) -> datetime:
+        return datetime.now()

src/cpl/application/application_runtime_abc.py

@@ -0,0 +1,34 @@
+from abc import ABC, abstractmethod
+from datetime import datetime
+
+from cpl.configuration.configuration_abc import ConfigurationABC
+
+
+class ApplicationRuntimeABC(ABC):
+
+    @abstractmethod
+    def __init__(self): pass
+
+    @property
+    @abstractmethod
+    def configuration(self) -> ConfigurationABC: pass
+
+    @property
+    @abstractmethod
+    def start_time(self) -> datetime: pass
+
+    @start_time.setter
+    @abstractmethod
+    def start_time(self, start_time: datetime): pass
+
+    @property
+    @abstractmethod
+    def end_time(self): pass
+
+    @end_time.setter
+    @abstractmethod
+    def end_time(self, end_time: datetime): pass
+
+    @property
+    @abstractmethod
+    def date_time_now(self) -> datetime: pass

src/cpl/application/startup_abc.py

@@ -0,0 +1,20 @@
+from abc import ABC, abstractmethod
+
+from cpl.application.application_host_abc import ApplicationHostABC
+from cpl.configuration.configuration_abc import ConfigurationABC
+from cpl.dependency_injection.service_provider_base import ServiceProviderABC
+
+
+class StartupABC(ABC):
+
+    @abstractmethod
+    def __init__(self): pass
+
+    @abstractmethod
+    def create_application_host(self) -> ApplicationHostABC: pass
+
+    @abstractmethod
+    def create_configuration(self) -> ConfigurationABC: pass
+
+    @abstractmethod
+    def create_services(self) -> ServiceProviderABC: pass

src/cpl/configuration/configuration.py

@@ -0,0 +1,118 @@
+import json
+import os
+import sys
+
+from cpl.configuration.configuration_abc import ConfigurationABC
+from cpl.configuration.configuration_model_abc import ConfigurationModelABC
+from cpl.configuration.configuration_variable_name import ConfigurationVariableName
+from cpl.console.console import Console
+from cpl.console.foreground_color import ForegroundColor
+from cpl.environment.hosting_environment import HostingEnvironment
+from cpl.environment.environment_abc import EnvironmentABC
+from cpl.environment.environment_name import EnvironmentName
+
+
+class Configuration(ConfigurationABC):
+
+    def __init__(self):
+        ConfigurationABC.__init__(self)
+
+        self._hosting_environment = HostingEnvironment()
+        self._config: dict[type, ConfigurationModelABC] = {}
+
+    @property
+    def environment(self) -> EnvironmentABC:
+        return self._hosting_environment
+
+    @staticmethod
+    def _print_info(name: str, message: str):
+        Console.set_foreground_color(ForegroundColor.green)
+        Console.write_line(f'[{name}] {message}')
+        Console.set_foreground_color(ForegroundColor.default)
+
+    @staticmethod
+    def _print_warn(name: str, message: str):
+        Console.set_foreground_color(ForegroundColor.yellow)
+        Console.write_line(f'[{name}] {message}')
+        Console.set_foreground_color(ForegroundColor.default)
+
+    @staticmethod
+    def _print_error(name: str, message: str):
+        Console.set_foreground_color(ForegroundColor.red)
+        Console.write_line(f'[{name}] {message}')
+        Console.set_foreground_color(ForegroundColor.default)
+
+    def _set_variable(self, name: str, value: str):
+        if name == ConfigurationVariableName.environment.value:
+            self._hosting_environment.environment_name = EnvironmentName(value)
+
+        elif name == ConfigurationVariableName.name.value:
+            self._hosting_environment.application_name = value
+
+        elif name == ConfigurationVariableName.customer.value:
+            self._hosting_environment.customer = value
+
+    def add_environment_variables(self, prefix: str):
+        for variable in ConfigurationVariableName.to_list():
+            var_name = f'{prefix}{variable}'
+            if var_name in [key.upper() for key in os.environ.keys()]:
+                self._set_variable(variable, os.environ[var_name])
+
+    def add_argument_variables(self):
+        for arg in sys.argv[1:]:
+            try:
+                argument = arg.split('--')[1].split('=')[0].upper()
+                value = arg.split('=')[1]
+
+                if argument not in ConfigurationVariableName.to_list():
+                    raise Exception(f'Invalid argument name: {argument}')
+
+                self._set_variable(argument, value)
+            except Exception as e:
+                self._print_error(__name__, f'Invalid argument: {arg} -> {e}')
+                exit()
+
+    def add_json_file(self, name: str, optional: bool = None):
+        if self._hosting_environment.content_root_path.endswith('/') and not name.startswith('/'):
+            file_path = f'{self._hosting_environment.content_root_path}{name}'
+        else:
+            file_path = f'{self._hosting_environment.content_root_path}/{name}'
+
+        if not os.path.isfile(file_path):
+            if not optional:
+                self._print_error(__name__, f'File not found: {file_path}')
+                exit()
+
+            self._print_warn(__name__, f'Not Loaded config file: {file_path}')
+            return None
+
+        config_from_file = self._load_json_file(file_path)
+        for sub in ConfigurationModelABC.__subclasses__():
+            for key, value in config_from_file.items():
+                if sub.__name__ == key:
+                    configuration = sub()
+                    configuration.from_dict(value)
+                    self.add_configuration(sub, configuration)
+
+    def _load_json_file(self, file: str) -> dict:
+        try:
+            # open config file, create if not exists
+            with open(file, encoding='utf-8') as cfg:
+                # load json
+                json_cfg = json.load(cfg)
+                self._print_info(__name__, f'Loaded config file: {file}')
+                return json_cfg
+        except Exception as e:
+            self._print_error(__name__, f'Cannot load config file: {file}! -> {e}')
+            return {}
+
+    def add_configuration(self, key_type: type, value: ConfigurationModelABC):
+        self._config[key_type] = value
+
+    def get_configuration(self, search_type: type) -> ConfigurationModelABC:
+        if search_type not in self._config:
+            raise Exception(f'Config model by type {search_type} not found')
+
+        for config_model in self._config:
+            if config_model == search_type:
+                return self._config[config_model]

src/cpl/configuration/configuration_abc.py

@@ -0,0 +1,31 @@
+from abc import abstractmethod, ABC
+from collections import Callable
+from typing import Type
+
+from cpl.configuration.configuration_model_abc import ConfigurationModelABC
+from cpl.environment.environment_abc import EnvironmentABC
+
+
+class ConfigurationABC(ABC):
+
+    @abstractmethod
+    def __init__(self): pass
+
+    @property
+    @abstractmethod
+    def environment(self) -> EnvironmentABC: pass
+
+    @abstractmethod
+    def add_environment_variables(self, prefix: str): pass
+
+    @abstractmethod
+    def add_argument_variables(self): pass
+
+    @abstractmethod
+    def add_json_file(self, name: str, optional: bool = None): pass
+
+    @abstractmethod
+    def add_configuration(self, key_type: type, value: object): pass
+
+    @abstractmethod
+    def get_configuration(self, search_type: Type[ConfigurationModelABC]) -> Callable[ConfigurationModelABC]: pass

src/cpl/configuration/configuration_model_abc.py

@@ -0,0 +1,10 @@
+from abc import ABC, abstractmethod
+
+
+class ConfigurationModelABC(ABC):
+
+    @abstractmethod
+    def __init__(self): pass
+
+    @abstractmethod
+    def from_dict(self, settings: dict): pass

src/cpl/configuration/configuration_variable_name.py

@@ -0,0 +1,12 @@
+from enum import Enum
+
+
+class ConfigurationVariableName(Enum):
+
+    environment = 'ENVIRONMENT'
+    name = 'NAME'
+    customer = 'CUSTOMER'
+
+    @staticmethod
+    def to_list():
+        return [var.value for var in ConfigurationVariableName]

src/cpl/console/background_color.py

@@ -0,0 +1,14 @@
+from enum import Enum
+
+
+class BackgroundColor(Enum):
+
+    default = 'on_default'
+    grey = 'on_grey'
+    red = 'on_red'
+    green = 'on_green'
+    yellow = 'on_yellow'
+    blue = 'on_blue'
+    magenta = 'on_magenta'
+    cyan = 'on_cyan'
+    white = 'on_white'

src/cpl/console/console.py

@@ -0,0 +1,205 @@
+import os
+from typing import Union, Optional
+
+import pyfiglet
+from tabulate import tabulate
+from termcolor import colored
+
+from cpl.console.background_color import BackgroundColor
+from cpl.console.foreground_color import ForegroundColor
+
+
+class Console:
+    _is_first_write = True
+
+    _background_color: BackgroundColor = BackgroundColor.default
+    _foreground_color: ForegroundColor = ForegroundColor.default
+    _x: Optional[int] = None
+    _y: Optional[int] = None
+    _disabled: bool = False
+
+    """
+        Properties
+    """
+
+    @classmethod
+    @property
+    def background_color(cls) -> str:
+        return str(cls._background_color.value)
+
+    @classmethod
+    @property
+    def foreground_color(cls) -> str:
+        return str(cls._foreground_color.value)
+
+    """
+        Settings
+    """
+
+    @classmethod
+    def set_background_color(cls, color: Union[BackgroundColor, str]):
+        if type(color) is str:
+            cls._background_color = BackgroundColor[color]
+        else:
+            cls._background_color = color
+
+    @classmethod
+    def set_foreground_color(cls, color: Union[ForegroundColor, str]):
+
+        if type(color) is str:
+            cls._foreground_color = ForegroundColor[color]
+        else:
+            cls._foreground_color = color
+
+    @classmethod
+    def reset_cursor_position(cls):
+        cls._x = None
+        cls._y = None
+
+    @classmethod
+    def set_cursor_position(cls, x: int, y: int):
+        cls._x = x
+        cls._y = y
+
+    """
+        Useful protected methods
+    """
+
+    @classmethod
+    def _output(cls, string: str, x: int = None, y: int = None, end='\n'):
+        if cls._is_first_write:
+            cls._is_first_write = False
+
+        args = []
+        colored_args = []
+
+        if x is not None and y is not None:
+            args.append(f'\033[{x};{y}H')
+        elif cls._x is not None and cls._y is not None:
+            args.append(f'\033[{cls._x};{cls._y}H')
+
+        colored_args.append(string)
+        if cls._foreground_color != ForegroundColor.default and cls._background_color == BackgroundColor.default:
+            colored_args.append(cls._foreground_color.value)
+        elif cls._foreground_color == ForegroundColor.default and cls._background_color != BackgroundColor.default:
+            colored_args.append(cls._background_color.value)
+        elif cls._foreground_color != ForegroundColor.default and cls._background_color != BackgroundColor.default:
+            colored_args.append(cls._foreground_color.value)
+            colored_args.append(cls._background_color.value)
+
+        args.append(colored(*colored_args))
+        print(*args, end=end)
+
+    """
+        Useful public methods
+    """
+
+    @classmethod
+    def banner(cls, string: str):
+        if cls._disabled:
+            return
+
+        ascii_banner = pyfiglet.figlet_format(string)
+        cls.write_line(ascii_banner)
+
+    @classmethod
+    def clear(cls):
+        os.system('cls' if os.name == 'nt' else 'clear')
+
+    @classmethod
+    def close(cls):
+        if cls._disabled:
+            return
+
+        Console.reset()
+        Console.write('\n\n\nPress any key to continue...')
+        Console.read_line()
+        exit()
+
+    @classmethod
+    def disable(cls):
+        cls._disabled = True
+
+    @classmethod
+    def error(cls, string: str, tb: str = None):
+        if cls._disabled:
+            return
+
+        cls.set_foreground_color('red')
+        if tb is not None:
+            cls.write_line(f'{string} -> {tb}')
+        else:
+            cls.write_line(string)
+        cls.set_foreground_color('default')
+
+    @classmethod
+    def enable(cls):
+        cls._disabled = False
+
+    @classmethod
+    def read(cls, output: str = None) -> str:
+        if output is not None:
+            cls.write(output)
+
+        return input()[0]
+
+    @classmethod
+    def read_line(cls, output: str = None) -> str:
+        if cls._disabled:
+            return ''
+
+        if output is not None:
+            cls.write(output)
+
+        return input()
+
+    @classmethod
+    def reset(cls):
+        cls._background_color = BackgroundColor.default
+        cls._foreground_color = ForegroundColor.default
+
+    @classmethod
+    def table(cls, header: list[str], values: list[list[str]]):
+        if cls._disabled:
+            return
+
+        table = tabulate(values, headers=header)
+
+        Console.write_line(table)
+        Console.write('\n')
+
+    @classmethod
+    def write(cls, *args):
+        if cls._disabled:
+            return
+
+        string = ' '.join(map(str, args))
+        cls._output(string, end='')
+
+    @classmethod
+    def write_at(cls, x: int, y: int, *args):
+        if cls._disabled:
+            return
+
+        string = ' '.join(map(str, args))
+        cls._output(string, x, y, end='')
+
+    @classmethod
+    def write_line(cls, *args):
+        if cls._disabled:
+            return
+
+        string = ' '.join(map(str, args))
+        if not cls._is_first_write:
+            cls._output('')
+        cls._output(string, end='')
+
+    @classmethod
+    def write_line_at(cls, x: int, y: int, *args):
+        if cls._disabled:
+            return
+
+        string = ' '.join(map(str, args))
+        if not cls._is_first_write:
+            cls._output('', end='')
+        cls._output(string, x, y, end='')

src/cpl/console/foreground_color.py

@@ -0,0 +1,14 @@
+from enum import Enum
+
+
+class ForegroundColor(Enum):
+
+    default = 'default'
+    grey = 'grey'
+    red = 'red'
+    green = 'green'
+    yellow = 'yellow'
+    blue = 'blue'
+    magenta = 'magenta'
+    cyan = 'cyan'
+    white = 'white'

src/cpl/database/connection/database_connection.py

@@ -0,0 +1,58 @@
+from typing import Optional
+
+from sqlalchemy import engine, create_engine
+from sqlalchemy.orm import Session, sessionmaker
+
+from cpl.console.console import Console
+from cpl.console.foreground_color import ForegroundColor
+from cpl.database.connection.database_connection_abc import DatabaseConnectionABC
+from cpl.database.database_settings import DatabaseSettings
+
+
+class DatabaseConnection(DatabaseConnectionABC):
+
+    def __init__(self, database_settings: DatabaseSettings):
+        DatabaseConnectionABC.__init__(self)
+
+        self._db_settings = database_settings
+
+        self._engine: Optional[engine] = None
+        self._session: Optional[Session] = None
+        self._credentials: Optional[str] = None
+
+    @property
+    def engine(self) -> engine:
+        return self._engine
+
+    @property
+    def session(self) -> Session:
+        return self._session
+
+    def connect(self, connection_string: str):
+        try:
+            self._engine = create_engine(connection_string)
+
+            if self._db_settings.auth_plugin is not None:
+                self._engine = create_engine(connection_string, connect_args={'auth_plugin': self._db_settings.auth_plugin})
+
+            if self._db_settings.encoding is not None:
+                self._engine.encoding = self._db_settings.encoding
+
+            if self._db_settings.case_sensitive is not None:
+                self._engine.case_sensitive = self._db_settings.case_sensitive
+
+            if self._db_settings.echo is not None:
+                self._engine.echo = self._db_settings.echo
+
+            self._engine.connect()
+
+            db_session = sessionmaker(bind=self._engine)
+            self._session = db_session()
+            Console.set_foreground_color(ForegroundColor.green)
+            Console.write_line(f'[{__name__}] Connected to database')
+            Console.set_foreground_color(ForegroundColor.default)
+        except Exception as e:
+            Console.set_foreground_color(ForegroundColor.red)
+            Console.write_line(f'[{__name__}] Database connection failed -> {e}')
+            Console.set_foreground_color(ForegroundColor.default)
+            exit()

src/cpl/database/connection/database_connection_abc.py

@@ -0,0 +1,21 @@
+from abc import abstractmethod, ABC
+
+from sqlalchemy import engine
+from sqlalchemy.orm import Session
+
+
+class DatabaseConnectionABC(ABC):
+
+    @abstractmethod
+    def __init__(self): pass
+
+    @property
+    @abstractmethod
+    def engine(self) -> engine: pass
+
+    @property
+    @abstractmethod
+    def session(self) -> Session: pass
+
+    @abstractmethod
+    def connect(self, connection_string: str): pass

src/cpl/database/context/database_context.py

@@ -0,0 +1,50 @@
+from sqlalchemy import engine, Table
+from sqlalchemy.orm import Session
+
+from cpl.console.console import Console
+from cpl.console.foreground_color import ForegroundColor
+from cpl.database.connection.database_connection import DatabaseConnection
+from cpl.database.connection.database_connection_abc import DatabaseConnectionABC
+from cpl.database.context.database_context_abc import DatabaseContextABC
+from cpl.database.database_settings import DatabaseSettings
+from cpl.database.database_model import DatabaseModel
+
+
+class DatabaseContext(DatabaseContextABC):
+
+    def __init__(self, database_settings: DatabaseSettings):
+        DatabaseContextABC.__init__(self)
+
+        self._db: DatabaseConnectionABC = DatabaseConnection(database_settings)
+        self._tables: list[Table] = []
+
+    @property
+    def engine(self) -> engine:
+        return self._db.engine
+
+    @property
+    def session(self) -> Session:
+        return self._db.session
+
+    def create(self):
+        pass
+
+    def connect(self, connection_string: str):
+        self._db.connect(connection_string)
+        self._create_tables()
+
+    def _create_tables(self):
+        try:
+            for subclass in DatabaseModel.__subclasses__():
+                self._tables.append(subclass.__table__)
+
+            DatabaseModel.metadata.drop_all(self._db.engine, self._tables)
+            DatabaseModel.metadata.create_all(self._db.engine, self._tables, checkfirst=True)
+            Console.set_foreground_color(ForegroundColor.green)
+            Console.write_line(f'[{__name__}] Created tables')
+            Console.set_foreground_color(ForegroundColor.default)
+        except Exception as e:
+            Console.set_foreground_color(ForegroundColor.red)
+            Console.write_line(f'[{__name__}] Creating tables failed -> {e}')
+            Console.set_foreground_color(ForegroundColor.default)
+            exit()

src/cpl/database/context/database_context_abc.py

@@ -0,0 +1,21 @@
+from abc import abstractmethod, ABC
+
+from sqlalchemy import engine
+from sqlalchemy.orm import Session
+
+
+class DatabaseContextABC(ABC):
+
+    @property
+    @abstractmethod
+    def engine(self) -> engine: pass
+
+    @property
+    @abstractmethod
+    def session(self) -> Session: pass
+
+    @abstractmethod
+    def connect(self, connection_string: str): pass
+
+    @abstractmethod
+    def _create_tables(self): pass

src/cpl/database/database_model.py

@@ -0,0 +1,3 @@
+from sqlalchemy.ext.declarative import declarative_base
+
+DatabaseModel: declarative_base = declarative_base()

src/cpl/database/database_settings.py

@@ -0,0 +1,90 @@
+import traceback
+from typing import Optional
+
+from cpl.configuration.configuration_model_abc import ConfigurationModelABC
+from cpl.console.console import Console
+from cpl.console.foreground_color import ForegroundColor
+from cpl.database.database_settings_name import DatabaseSettingsName
+
+
+class DatabaseSettings(ConfigurationModelABC):
+
+    def __init__(self):
+        ConfigurationModelABC.__init__(self)
+
+        self._auth_plugin: Optional[str] = None
+        self._connection_string: Optional[str] = None
+        self._credentials: Optional[str] = None
+        self._encoding: Optional[str] = None
+        self._case_sensitive: Optional[bool] = None
+        self._echo: Optional[bool] = None
+
+    @property
+    def auth_plugin(self) -> str:
+        return self._auth_plugin
+
+    @auth_plugin.setter
+    def auth_plugin(self, auth_plugin: str):
+        self._auth_plugin = auth_plugin
+
+    @property
+    def connection_string(self) -> str:
+        return self._connection_string
+
+    @connection_string.setter
+    def connection_string(self, connection_string: str):
+        self._connection_string = connection_string
+
+    @property
+    def credentials(self) -> str:
+        return self._credentials
+
+    @credentials.setter
+    def credentials(self, credentials: str):
+        self._credentials = credentials
+
+    @property
+    def encoding(self) -> str:
+        return self._encoding
+
+    @encoding.setter
+    def encoding(self, encoding: str) -> None:
+        self._encoding = encoding
+
+    @property
+    def case_sensitive(self) -> bool:
+        return self._case_sensitive
+
+    @case_sensitive.setter
+    def case_sensitive(self, case_sensitive: bool) -> None:
+        self._case_sensitive = case_sensitive
+
+    @property
+    def echo(self) -> bool:
+        return self._echo
+
+    @echo.setter
+    def echo(self, echo: bool) -> None:
+        self._echo = echo
+
+    def from_dict(self, settings: dict):
+        try:
+            self._connection_string = settings[DatabaseSettingsName.connection_string.value]
+            self._credentials = settings[DatabaseSettingsName.credentials.value]
+
+            if DatabaseSettingsName.auth_plugin.value in settings:
+                self._auth_plugin = settings[DatabaseSettingsName.auth_plugin.value]
+
+            if DatabaseSettingsName.encoding.value in settings:
+                self._encoding = settings[DatabaseSettingsName.encoding.value]
+
+            if DatabaseSettingsName.case_sensitive.value in settings:
+                self._case_sensitive = bool(settings[DatabaseSettingsName.case_sensitive.value])
+
+            if DatabaseSettingsName.echo.value in settings:
+                self._echo = bool(settings[DatabaseSettingsName.echo.value])
+        except Exception as e:
+            Console.set_foreground_color(ForegroundColor.red)
+            Console.write_line(f'[ ERROR ] [ {__name__} ]: Reading error in {self.__name__} settings')
+            Console.write_line(f'[ EXCEPTION ] [ {__name__} ]: {e} -> {traceback.format_exc()}')
+            Console.set_foreground_color(ForegroundColor.default)

src/cpl/database/database_settings_name.py

@@ -0,0 +1,11 @@
+from enum import Enum
+
+
+class DatabaseSettingsName(Enum):
+
+    connection_string = 'ConnectionString'
+    credentials = 'Credentials'
+    encoding = 'Encoding'
+    case_sensitive = 'CaseSensitive'
+    echo = 'Echo'
+    auth_plugin = 'AuthPlugin'

src/cpl/dependency_injection/provide_state.py

@@ -0,0 +1,18 @@
+from typing import Type
+
+from sh_edraft.service.base.service_base import ServiceBase
+
+
+class ProvideState:
+
+    def __init__(self, service: Type[ServiceBase] = None, args: tuple = None):
+        self._service: Type[ServiceBase] = service
+        self._args: tuple = args
+
+    @property
+    def service(self):
+        return self._service
+
+    @property
+    def args(self) -> tuple:
+        return self._args

src/cpl/dependency_injection/service_abc.py

@@ -0,0 +1,7 @@
+from abc import ABC, abstractmethod
+
+
+class ServiceABC(ABC):
+
+    @abstractmethod
+    def __init__(self): pass

src/cpl/dependency_injection/service_provider.py

@@ -0,0 +1,95 @@
+from abc import ABC
+from collections import Callable
+from inspect import signature, Parameter
+from typing import Type, Optional, Union
+
+from cpl.application.application_runtime_abc import ApplicationRuntimeABC
+from cpl.configuration.configuration_model_abc import ConfigurationModelABC
+from cpl.console.console import Console
+from cpl.database.context.database_context_abc import DatabaseContextABC
+from cpl.dependency_injection.service_abc import ServiceABC
+from cpl.dependency_injection.service_provider_base import ServiceProviderABC
+from cpl.environment.environment_abc import EnvironmentABC
+
+
+class ServiceProvider(ServiceProviderABC):
+
+    def __init__(self, app_runtime: ApplicationRuntimeABC):
+        ServiceProviderABC.__init__(self)
+        self._app_runtime: ApplicationRuntimeABC = app_runtime
+        self._database_context: Optional[DatabaseContextABC] = None
+
+        self._transient_services: dict[Type[ServiceABC], Type[ServiceABC]] = {}
+        self._scoped_services: dict[Type[ServiceABC], Type[ServiceABC]] = {}
+        self._singleton_services: dict[Type[ServiceABC], Callable[ServiceABC], ServiceABC] = {}
+
+    def _create_instance(self, service: Union[Callable[ServiceABC], ServiceABC]) -> Callable[ServiceABC]:
+        sig = signature(service.__init__)
+        params = []
+        for param in sig.parameters.items():
+            parameter = param[1]
+            if parameter.name != 'self' and parameter.annotation != Parameter.empty:
+                if issubclass(parameter.annotation, ApplicationRuntimeABC):
+                    params.append(self._app_runtime)
+
+                elif issubclass(parameter.annotation, EnvironmentABC):
+                    params.append(self._app_runtime.configuration.environment)
+
+                elif issubclass(parameter.annotation, DatabaseContextABC):
+                    params.append(self._database_context)
+
+                elif issubclass(parameter.annotation, ConfigurationModelABC):
+                    params.append(self._app_runtime.configuration.get_configuration(parameter.annotation))
+
+                else:
+                    params.append(self.get_service(parameter.annotation))
+
+        return service(*params)
+
+    def add_db_context(self, db_context: Type[DatabaseContextABC]):
+        self._database_context = self._create_instance(db_context)
+
+    def get_db_context(self) -> Callable[DatabaseContextABC]:
+        return self._database_context
+
+    def add_transient(self, service_type: Type[ServiceABC], service: Type[ServiceABC]):
+        self._transient_services[service_type] = service
+
+    def add_scoped(self, service_type: Type[ServiceABC], service: Type[ServiceABC]):
+        self._scoped_services[service_type] = service
+
+    def add_singleton(self, service_type: Type[ServiceABC], service: Callable[ServiceABC]):
+        for known_service in self._singleton_services:
+            if type(known_service) == service_type:
+                raise Exception(f'Service with type {service_type} already exists')
+
+        self._singleton_services[service_type] = self._create_instance(service)
+
+    def get_service(self, instance_type: Type) -> Callable[ServiceABC]:
+        for service in self._transient_services:
+            if service == instance_type and isinstance(self._transient_services[service], type(instance_type)):
+                return self._create_instance(self._transient_services[service])
+
+        for service in self._scoped_services:
+            if service == instance_type and isinstance(self._scoped_services[service], type(instance_type)):
+                return self._create_instance(self._scoped_services[service])
+
+        for service in self._singleton_services:
+            if service == instance_type and isinstance(self._singleton_services[service], instance_type):
+                return self._singleton_services[service]
+
+    def remove_service(self, instance_type: Type[ServiceABC]):
+        for service in self._transient_services:
+            if service == instance_type and isinstance(self._transient_services[service], type(instance_type)):
+                del self._transient_services[service]
+                return
+
+        for service in self._scoped_services:
+            if service == instance_type and isinstance(self._scoped_services[service], type(instance_type)):
+                del self._scoped_services[service]
+                return
+
+        for service in self._singleton_services:
+            if service == instance_type and isinstance(self._singleton_services[service], instance_type):
+                del self._singleton_services[service]
+                return

src/cpl/dependency_injection/service_provider_base.py

@@ -0,0 +1,33 @@
+from abc import abstractmethod, ABC
+from collections import Callable
+from typing import Type
+
+from cpl.database.context.database_context_abc import DatabaseContextABC
+from cpl.dependency_injection.service_abc import ServiceABC
+
+
+class ServiceProviderABC(ABC):
+
+    @abstractmethod
+    def __init__(self): pass
+
+    @abstractmethod
+    def add_db_context(self, db_context: Type[DatabaseContextABC]): pass
+
+    @abstractmethod
+    def get_db_context(self) -> Callable[DatabaseContextABC]: pass
+
+    @abstractmethod
+    def add_transient(self, service_type: Type, service: Type): pass
+
+    @abstractmethod
+    def add_scoped(self, service_type: Type, service: Type): pass
+
+    @abstractmethod
+    def add_singleton(self, service_type: Type, service: Callable): pass
+
+    @abstractmethod
+    def get_service(self, instance_type: Type) -> Callable[ServiceABC]: pass
+
+    @abstractmethod
+    def remove_service(self, instance_type: type): pass

src/cpl/environment/environment_abc.py

@@ -0,0 +1,43 @@
+from abc import ABC, abstractmethod
+
+
+class EnvironmentABC(ABC):
+
+    @abstractmethod
+    def __init__(self): pass
+    
+    @property
+    @abstractmethod
+    def environment_name(self) -> str: pass
+    
+    @environment_name.setter
+    @abstractmethod
+    def environment_name(self, environment_name: str): pass
+    
+    @property
+    @abstractmethod
+    def application_name(self) -> str: pass
+    
+    @application_name.setter
+    @abstractmethod
+    def application_name(self, application_name: str): pass
+    
+    @property
+    @abstractmethod
+    def customer(self) -> str: pass
+    
+    @customer.setter
+    @abstractmethod
+    def customer(self, customer: str): pass
+
+    @property
+    @abstractmethod
+    def content_root_path(self) -> str: pass
+
+    @content_root_path.setter
+    @abstractmethod
+    def content_root_path(self, content_root_path: str): pass
+
+    @property
+    @abstractmethod
+    def host_name(self) -> str: pass

src/cpl/environment/environment_name.py

@@ -0,0 +1,9 @@
+from enum import Enum
+
+
+class EnvironmentName(Enum):
+
+    production = 'production'
+    staging = 'staging'
+    testing = 'testing'
+    development = 'development'

src/cpl/environment/hosting_environment.py

@@ -0,0 +1,52 @@
+from socket import gethostname
+from typing import Optional
+
+from cpl.environment.environment_abc import EnvironmentABC
+from cpl.environment.environment_name import EnvironmentName
+
+
+class HostingEnvironment(EnvironmentABC):
+
+    def __init__(self, name: EnvironmentName = EnvironmentName.production, crp: str = './'):
+        EnvironmentABC.__init__(self)
+
+        self._environment_name: Optional[EnvironmentName] = name
+        self._app_name: Optional[str] = None
+        self._customer: Optional[str] = None
+        self._content_root_path: Optional[str] = crp
+
+    @property
+    def environment_name(self) -> str:
+        return str(self._environment_name.value)
+
+    @environment_name.setter
+    def environment_name(self, environment_name: str):
+        self._environment_name = EnvironmentName(environment_name)
+
+    @property
+    def application_name(self) -> str:
+        return self._app_name if self._app_name is not None else ''
+
+    @application_name.setter
+    def application_name(self, application_name: str):
+        self._app_name = application_name
+
+    @property
+    def customer(self) -> str:
+        return self._customer if self._customer is not None else ''
+
+    @customer.setter
+    def customer(self, customer: str):
+        self._customer = customer
+
+    @property
+    def content_root_path(self) -> str:
+        return self._content_root_path
+
+    @content_root_path.setter
+    def content_root_path(self, content_root_path: str):
+        self._content_root_path = content_root_path
+
+    @property
+    def host_name(self):
+        return gethostname()

src/cpl/logging/logger.py

@@ -0,0 +1,195 @@
+import datetime
+import os
+import traceback
+from string import Template
+
+from cpl.application.application_runtime_abc import ApplicationRuntimeABC
+from cpl.console.console import Console
+from cpl.console.foreground_color import ForegroundColor
+from cpl.logging.logger_abc import LoggerABC
+from cpl.logging.logging_level import LoggingLevel
+from cpl.logging.logging_settings import LoggingSettings
+from cpl.time.time_format_settings import TimeFormatSettings
+
+
+class Logger(LoggerABC):
+
+    def __init__(self, logging_settings: LoggingSettings, time_format: TimeFormatSettings, app_runtime: ApplicationRuntimeABC):
+        LoggerABC.__init__(self)
+
+        self._app_runtime = app_runtime
+        self._log_settings: LoggingSettings = logging_settings
+        self._time_format_settings: TimeFormatSettings = time_format
+
+        self._log = Template(self._log_settings.filename).substitute(
+            date_time_now=self._app_runtime.date_time_now.strftime(self._time_format_settings.date_time_format),
+            start_time=self._app_runtime.start_time.strftime(self._time_format_settings.date_time_log_format)
+        )
+        self._path = self._log_settings.path
+        self._level = self._log_settings.level
+        self._console = self._log_settings.console
+
+        self.create()
+
+    def _get_datetime_now(self) -> str:
+        try:
+            return datetime.datetime.now().strftime(self._time_format_settings.date_time_format)
+        except Exception as e:
+            self.error(__name__, 'Cannot get time', ex=e)
+
+    def _get_date(self) -> str:
+        try:
+            return datetime.datetime.now().strftime(self._time_format_settings.date_format)
+        except Exception as e:
+            self.error(__name__, 'Cannot get date', ex=e)
+
+    def create(self) -> None:
+        """ path """
+        try:
+            # check if log file path exists
+            if not os.path.exists(self._path):
+                os.makedirs(self._path)
+        except Exception as e:
+            self._fatal_console(__name__, 'Cannot create log dir', ex=e)
+
+        """ create new log file """
+        try:
+            # open log file, create if not exists
+            path = f'{self._path}{self._log}'
+            f = open(path, "w+")
+            Console.write_line(f'[{__name__}]: Using log file: {path}')
+            f.close()
+        except Exception as e:
+            self._fatal_console(__name__, 'Cannot open log file', ex=e)
+
+    def _append_log(self, string):
+        try:
+            # open log file and append always
+            if not os.path.isdir(self._path):
+                self._fatal_console(__name__, 'Log directory not found')
+
+            with open(self._path + self._log, "a+", encoding="utf-8") as f:
+                f.write(string + '\n')
+                f.close()
+        except Exception as e:
+            self._fatal_console(__name__, f'Cannot append log file, message: {string}', ex=e)
+
+    def _get_string(self, name: str, level: LoggingLevel, message: str) -> str:
+        log_level = level.name
+        return f'<{self._get_datetime_now()}> [ {log_level} ] [ {name} ]: {message}'
+
+    def header(self, string: str):
+        # append log and print message
+        self._append_log(string)
+        Console.set_foreground_color(ForegroundColor.default)
+        Console.write_line(string)
+        Console.set_foreground_color(ForegroundColor.default)
+
+    def trace(self, name: str, message: str):
+        output = self._get_string(name, LoggingLevel.TRACE, message)
+
+        # check if message can be written to log
+        if self._level.value >= LoggingLevel.TRACE.value:
+            self._append_log(output)
+
+        # check if message can be shown in console
+        if self._console.value >= LoggingLevel.TRACE.value:
+            Console.set_foreground_color(ForegroundColor.green)
+            Console.write_line(output)
+            Console.set_foreground_color(ForegroundColor.default)
+
+    def debug(self, name: str, message: str):
+        output = self._get_string(name, LoggingLevel.DEBUG, message)
+
+        # check if message can be written to log
+        if self._level.value >= LoggingLevel.DEBUG.value:
+            self._append_log(output)
+
+        # check if message can be shown in console
+        if self._console.value >= LoggingLevel.DEBUG.value:
+            Console.set_foreground_color(ForegroundColor.green)
+            Console.write_line(output)
+            Console.set_foreground_color(ForegroundColor.default)
+
+    def info(self, name: str, message: str):
+        output = self._get_string(name, LoggingLevel.INFO, message)
+
+        # check if message can be written to log
+        if self._level.value >= LoggingLevel.INFO.value:
+            self._append_log(output)
+
+        # check if message can be shown in console
+        if self._console.value >= LoggingLevel.INFO.value:
+            Console.set_foreground_color(ForegroundColor.green)
+            Console.write_line(output)
+            Console.set_foreground_color(ForegroundColor.default)
+
+    def warn(self, name: str, message: str):
+        output = self._get_string(name, LoggingLevel.WARN, message)
+
+        # check if message can be written to log
+        if self._level.value >= LoggingLevel.WARN.value:
+            self._append_log(output)
+
+        # check if message can be shown in console
+        if self._console.value >= LoggingLevel.WARN.value:
+            Console.set_foreground_color(ForegroundColor.yellow)
+            Console.write_line(output)
+            Console.set_foreground_color(ForegroundColor.default)
+
+    def error(self, name: str, message: str, ex: Exception = None):
+        output = ''
+        if ex is not None:
+            tb = traceback.format_exc()
+            self.error(name, message)
+            output = self._get_string(name, LoggingLevel.ERROR, f'{ex} -> {tb}')
+        else:
+            output = self._get_string(name, LoggingLevel.ERROR, message)
+
+        # check if message can be written to log
+        if self._level.value >= LoggingLevel.ERROR.value:
+            self._append_log(output)
+
+        # check if message can be shown in console
+        if self._console.value >= LoggingLevel.ERROR.value:
+            Console.set_foreground_color(ForegroundColor.red)
+            Console.write_line(output)
+            Console.set_foreground_color(ForegroundColor.default)
+
+    def fatal(self, name: str, message: str, ex: Exception = None):
+        output = ''
+        if ex is not None:
+            tb = traceback.format_exc()
+            self.error(name, message)
+            output = self._get_string(name, LoggingLevel.FATAL, f'{ex} -> {tb}')
+        else:
+            output = self._get_string(name, LoggingLevel.FATAL, message)
+
+        # check if message can be written to log
+        if self._level.value >= LoggingLevel.FATAL.value:
+            self._append_log(output)
+
+        # check if message can be shown in console
+        if self._console.value >= LoggingLevel.FATAL.value:
+            Console.set_foreground_color(ForegroundColor.red)
+            Console.write_line(output)
+            Console.set_foreground_color(ForegroundColor.default)
+
+        exit()
+
+    def _fatal_console(self, name: str, message: str, ex: Exception = None):
+        output = ''
+        if ex is not None:
+            tb = traceback.format_exc()
+            self.error(name, message)
+            output = self._get_string(name, LoggingLevel.ERROR, f'{ex} -> {tb}')
+        else:
+            output = self._get_string(name, LoggingLevel.ERROR, message)
+
+        # check if message can be shown in console
+        if self._console.value >= LoggingLevel.FATAL.value:
+            Console.set_foreground_color(ForegroundColor.red)
+            Console.write_line(output)
+            Console.set_foreground_color(ForegroundColor.default)
+
+        exit()

src/cpl/logging/logger_abc.py

@@ -0,0 +1,31 @@
+from abc import abstractmethod
+
+from cpl.dependency_injection.service_abc import ServiceABC
+
+
+class LoggerABC(ServiceABC):
+
+    @abstractmethod
+    def __init__(self):
+        ServiceABC.__init__(self)
+
+    @abstractmethod
+    def header(self, string: str): pass
+
+    @abstractmethod
+    def trace(self, name: str, message: str): pass
+
+    @abstractmethod
+    def debug(self, name: str, message: str): pass
+
+    @abstractmethod
+    def info(self, name: str, message: str): pass
+
+    @abstractmethod
+    def warn(self, name: str, message: str): pass
+
+    @abstractmethod
+    def error(self, name: str, message: str, ex: Exception = None): pass
+
+    @abstractmethod
+    def fatal(self, name: str, message: str, ex: Exception = None): pass

src/cpl/logging/logging_level.py

@@ -0,0 +1,12 @@
+from enum import Enum
+
+
+class LoggingLevel(Enum):
+
+    OFF = 0         # Nothing
+    FATAL = 1       # Error that cause exit
+    ERROR = 2       # Non fatal error
+    WARN = 3        # Error that can later be fatal
+    INFO = 4        # Normal information's
+    DEBUG = 5       # Detailed app state
+    TRACE = 6       # Detailed app information's

src/cpl/logging/logging_settings.py

@@ -0,0 +1,62 @@
+import traceback
+from typing import Optional
+
+from cpl.configuration.configuration_model_abc import ConfigurationModelABC
+from cpl.console.console import Console
+from cpl.console.foreground_color import ForegroundColor
+from cpl.logging.logging_level import LoggingLevel
+from cpl.logging.logging_settings_name import LoggingSettingsName
+
+
+class LoggingSettings(ConfigurationModelABC):
+
+    def __init__(self):
+        ConfigurationModelABC.__init__(self)
+        self._path: Optional[str] = None
+        self._filename: Optional[str] = None
+        self._console: Optional[LoggingLevel] = None
+        self._level: Optional[LoggingLevel] = None
+
+    @property
+    def path(self) -> str:
+        return self._path
+
+    @path.setter
+    def path(self, path: str) -> None:
+        self._path = path
+
+    @property
+    def filename(self) -> str:
+        return self._filename
+
+    @filename.setter
+    def filename(self, filename: str) -> None:
+        self._filename = filename
+
+    @property
+    def console(self) -> LoggingLevel:
+        return self._console
+
+    @console.setter
+    def console(self, console: LoggingLevel) -> None:
+        self._console = console
+
+    @property
+    def level(self) -> LoggingLevel:
+        return self._level
+
+    @level.setter
+    def level(self, level: LoggingLevel) -> None:
+        self._level = level
+
+    def from_dict(self, settings: dict):
+        try:
+            self._path = settings[LoggingSettingsName.path.value]
+            self._filename = settings[LoggingSettingsName.filename.value]
+            self._console = LoggingLevel[settings[LoggingSettingsName.console_level.value]]
+            self._level = LoggingLevel[settings[LoggingSettingsName.file_level.value]]
+        except Exception as e:
+            Console.set_foreground_color(ForegroundColor.red)
+            Console.write_line(f'[ ERROR ] [ {__name__} ]: Reading error in {self.__name__} settings')
+            Console.write_line(f'[ EXCEPTION ] [ {__name__} ]: {e} -> {traceback.format_exc()}')
+            Console.set_foreground_color(ForegroundColor.default)

src/cpl/logging/logging_settings_name.py

@@ -0,0 +1,9 @@
+from enum import Enum
+
+
+class LoggingSettingsName(Enum):
+
+    path = 'Path'
+    filename = 'Filename'
+    console_level = 'ConsoleLogLevel'
+    file_level = 'FileLogLevel'

src/cpl/mailing/email.py

@@ -0,0 +1,86 @@
+import re
+
+
+class EMail:
+
+    def __init__(self, header: list[str] = None, subject: str = None, body: str = None, transceiver: str = None, receiver: list[str] = None):
+        self._header: list[str] = header
+
+        self._subject: str = subject
+        self._body: str = body
+
+        self._transceiver: str = transceiver
+        self._receiver: list[str] = receiver
+
+    @property
+    def header(self) -> str:
+        return '\r\n'.join(self._header)
+
+    @property
+    def header_list(self) -> list[str]:
+        return self._header
+
+    @header.setter
+    def header(self, header: list[str]):
+        self._header = header
+
+    @property
+    def subject(self) -> str:
+        return self._subject
+
+    @subject.setter
+    def subject(self, subject: str):
+        self._subject = subject
+
+    @property
+    def body(self) -> str:
+        return self._body
+
+    @body.setter
+    def body(self, body: str):
+        self._body = body
+
+    @property
+    def transceiver(self) -> str:
+        return self._transceiver
+
+    @transceiver.setter
+    def transceiver(self, transceiver: str):
+        if self.check_mail(transceiver):
+            self._transceiver = transceiver
+        else:
+            raise Exception(f'Invalid email: {transceiver}')
+
+    @property
+    def receiver(self) -> str:
+        return ','.join(self._receiver)
+
+    @property
+    def receiver_list(self) -> list[str]:
+        return self._receiver
+
+    @receiver.setter
+    def receiver(self, receiver: list[str]):
+        self._receiver = receiver
+
+    @staticmethod
+    def check_mail(address: str) -> bool:
+        return bool(re.search('^\\w+([.-]?\\w+)*@\\w+([.-]?\\w+)*(.\\w{2,3})+$', address))
+
+    def add_header(self, header: str):
+        if self._header is None:
+            self._header = []
+
+        self._header.append(header)
+
+    def add_receiver(self, receiver: str):
+        if self._receiver is None:
+            self._receiver = []
+
+        if self.check_mail(receiver):
+            self._receiver.append(receiver)
+        else:
+            raise Exception(f'Invalid email: {receiver}')
+
+    def get_content(self, transceiver: str):
+        return str(f'From: {transceiver}\r\nTo: {self.receiver}\r\n{self.header}\r\nSubject: {self.subject}\r\n{self.body}').encode('utf-8')

src/cpl/mailing/email_client.py

@@ -0,0 +1,70 @@
+import ssl
+from smtplib import SMTP
+from typing import Optional
+
+from cpl.environment.environment_abc import EnvironmentABC
+from cpl.logging.logger_abc import LoggerABC
+from cpl.mailing.email import EMail
+from cpl.mailing.email_client_abc import EMailClientABC
+from cpl.mailing.email_client_settings import EMailClientSettings
+from cpl.utils.credential_manager import CredentialManager
+
+
+class EMailClient(EMailClientABC):
+
+    def __init__(self, environment: EnvironmentABC, logger: LoggerABC, mail_settings: EMailClientSettings):
+        EMailClientABC.__init__(self)
+
+        self._environment = environment
+        self._mail_settings = mail_settings
+        self._logger = logger
+
+        self._server: Optional[SMTP] = None
+
+        self.create()
+
+    def create(self):
+        self._logger.trace(__name__, f'Started {__name__}.create')
+        self.connect()
+        self._logger.trace(__name__, f'Stopped {__name__}.create')
+
+    def connect(self):
+        self._logger.trace(__name__, f'Started {__name__}.connect')
+        try:
+            self._logger.debug(__name__, f'Try to connect to {self._mail_settings.host}:{self._mail_settings.port}')
+            self._server = SMTP(self._mail_settings.host, self._mail_settings.port)
+            self._logger.info(__name__, f'Connected to {self._mail_settings.host}:{self._mail_settings.port}')
+
+            self._logger.debug(__name__, 'Try to start tls')
+            self._server.starttls(context=ssl.create_default_context())
+            self._logger.info(__name__, 'Started tls')
+        except Exception as e:
+            self._logger.error(__name__, 'Cannot connect to mail server', e)
+
+        self._logger.trace(__name__, f'Stopped {__name__}.connect')
+
+    def login(self):
+        self._logger.trace(__name__, f'Started {__name__}.login')
+        try:
+            self._logger.debug(__name__, f'Try to login {self._mail_settings.user_name}@{self._mail_settings.host}:{self._mail_settings.port}')
+            self._server.login(self._mail_settings.user_name, CredentialManager.decrypt(self._mail_settings.credentials))
+            self._logger.info(__name__, f'Logged on as {self._mail_settings.user_name} to {self._mail_settings.host}:{self._mail_settings.port}')
+        except Exception as e:
+            self._logger.error(__name__, 'Cannot login to mail server', e)
+
+        self._logger.trace(__name__, f'Stopped {__name__}.login')
+
+    def send_mail(self, email: EMail):
+        self._logger.trace(__name__, f'Started {__name__}.send_mail')
+        try:
+            self.login()
+            email.body += f'\n\nDies ist eine automatische E-Mail.' \
+                          f'\nGesendet von {self._environment.application_name}-{self._environment.environment_name}@{self._environment.host_name} für ' \
+                          f'{self._environment.customer}.'
+
+            self._logger.debug(__name__, f'Try to send email to {email.receiver_list}')
+            self._server.sendmail(self._mail_settings.user_name, email.receiver_list, email.get_content(self._mail_settings.user_name))
+            self._logger.info(__name__, f'Sent email to {email.receiver_list}')
+        except Exception as e:
+            self._logger.error(__name__, f'Cannot send mail to {email.receiver_list}', e)
+        self._logger.trace(__name__, f'Stopped {__name__}.send_mail')

src/cpl/mailing/email_client_abc.py

@@ -0,0 +1,17 @@
+from abc import abstractmethod
+
+from cpl.dependency_injection.service_abc import ServiceABC
+from cpl.mailing.email import EMail
+
+
+class EMailClientABC(ServiceABC):
+
+    @abstractmethod
+    def __init__(self):
+        ServiceABC.__init__(self)
+
+    @abstractmethod
+    def connect(self): pass
+
+    @abstractmethod
+    def send_mail(self, email: EMail): pass

src/cpl/mailing/email_client_settings.py

@@ -0,0 +1,59 @@
+import traceback
+
+from cpl.configuration.configuration_model_abc import ConfigurationModelABC
+from cpl.console.console import Console
+from cpl.mailing.email_client_settings_name import EMailClientSettingsName
+
+
+class EMailClientSettings(ConfigurationModelABC):
+
+    def __init__(self):
+        ConfigurationModelABC.__init__(self)
+
+        self._host: str = ''
+        self._port: int = 0
+        self._user_name: str = ''
+        self._credentials: str = ''
+
+    @property
+    def host(self) -> str:
+        return self._host
+
+    @host.setter
+    def host(self, host: str) -> None:
+        self._host = host
+
+    @property
+    def port(self) -> int:
+        return self._port
+
+    @port.setter
+    def port(self, port: int) -> None:
+        self._port = port
+
+    @property
+    def user_name(self) -> str:
+        return self._user_name
+
+    @user_name.setter
+    def user_name(self, user_name: str) -> None:
+        self._user_name = user_name
+
+    @property
+    def credentials(self) -> str:
+        return self._credentials
+
+    @credentials.setter
+    def credentials(self, credentials: str) -> None:
+        self._credentials = credentials
+
+    def from_dict(self, settings: dict):
+        try:
+            self._host = settings[EMailClientSettingsName.host.value]
+            self._port = settings[EMailClientSettingsName.port.value]
+            self._user_name = settings[EMailClientSettingsName.user_name.value]
+            self._credentials = settings[EMailClientSettingsName.credentials.value]
+        except Exception as e:
+            Console.error(f'[ ERROR ] [ {__name__} ]: Reading error in {self.__name__} settings')
+            Console.error(f'[ EXCEPTION ] [ {__name__} ]: {e} -> {traceback.format_exc()}')
+

src/cpl/mailing/email_client_settings_name.py

@@ -0,0 +1,9 @@
+from enum import Enum
+
+
+class EMailClientSettingsName(Enum):
+
+    host = 'Host'
+    port = 'Port'
+    user_name = 'UserName'
+    credentials = 'Credentials'

src/cpl/time/time_format_settings.py

@@ -0,0 +1,61 @@
+import traceback
+from typing import Optional
+
+from cpl.configuration.configuration_model_abc import ConfigurationModelABC
+from cpl.console.console import Console
+from cpl.console.foreground_color import ForegroundColor
+from cpl.time.time_format_settings_names import TimeFormatSettingsNames
+
+
+class TimeFormatSettings(ConfigurationModelABC):
+
+    def __init__(self):
+        ConfigurationModelABC.__init__(self)
+        self._date_format: Optional[str] = None
+        self._time_format: Optional[str] = None
+        self._date_time_format: Optional[str] = None
+        self._date_time_log_format: Optional[str] = None
+
+    @property
+    def date_format(self) -> str:
+        return self._date_format
+
+    @date_format.setter
+    def date_format(self, date_format: str) -> None:
+        self._date_format = date_format
+
+    @property
+    def time_format(self) -> str:
+        return self._time_format
+
+    @time_format.setter
+    def time_format(self, time_format: str):
+        self._time_format = time_format
+
+    @property
+    def date_time_format(self) -> str:
+        return self._date_time_format
+
+    @date_time_format.setter
+    def date_time_format(self, date_time_format: str) -> None:
+        self._date_time_format = date_time_format
+
+    @property
+    def date_time_log_format(self):
+        return self._date_time_log_format
+
+    @date_time_log_format.setter
+    def date_time_log_format(self, date_time_now_format: str) -> None:
+        self._date_time_log_format = date_time_now_format
+
+    def from_dict(self, settings: dict):
+        try:
+            self._date_format = settings[TimeFormatSettingsNames.date_format.value]
+            self._time_format = settings[TimeFormatSettingsNames.time_format.value]
+            self._date_time_format = settings[TimeFormatSettingsNames.date_time_format.value]
+            self._date_time_log_format = settings[TimeFormatSettingsNames.date_time_log_format.value]
+        except Exception as e:
+            Console.set_foreground_color(ForegroundColor.red)
+            Console.write_line(f'[ ERROR ] [ {__name__} ]: Reading error in {self.__name__} settings')
+            Console.write_line(f'[ EXCEPTION ] [ {__name__} ]: {e} -> {traceback.format_exc()}')
+            Console.set_foreground_color(ForegroundColor.default)

src/cpl/time/time_format_settings_names.py

@@ -0,0 +1,9 @@
+from enum import Enum
+
+
+class TimeFormatSettingsNames(Enum):
+
+    date_format = 'DateFormat'
+    time_format = 'TimeFormat'
+    date_time_format = 'DateTimeFormat'
+    date_time_log_format = 'DateTimeLogFormat'

src/cpl/utils/credential_manager.py

@@ -0,0 +1,17 @@
+import base64
+
+
+class CredentialManager:
+
+    @staticmethod
+    def encrypt(string: str) -> str:
+        return base64.b64encode(string.encode('utf-8')).decode('utf-8')
+
+    @staticmethod
+    def decrypt(string: str) -> str:
+        return base64.b64decode(string).decode('utf-8')
+
+    @staticmethod
+    def build_string(string: str, credentials: str):
+        return string.replace('$credentials', CredentialManager.decrypt(credentials))
+