#!/usr/bin/env python3
# -*- coding: utf-8 -*-

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# IMPORTS
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

from src.thirdparty.misc import *;
from src.thirdparty.config import *;
from src.thirdparty.code import *;
from src.thirdparty.types import *;

from models.generated.config import *;
from models.generated.commands import *;

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# EXPORTS
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

__all__ = [
    'INFO',
    'OPTIONS',
    'COMMANDS',
];

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# CONSTANTS
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PATH_ASSETS_CONFIG: str = 'assets/config.yaml';
PATH_ASSETS_COMMANDS: str = 'assets/commands.yaml';

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# LAZY LOADED RESOURCES
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

def load_assets_config(path: str) -> Config: # pragma: no cover
    with open(path, 'r') as fp:
        assets = yaml_load(fp, Loader=yaml_FullLoader);
        assert isinstance(assets, dict);
        return Config(**assets);

def create_commands(path: str) -> List[Command]: # pragma: no cover
    commands = [];
    with open(path, 'r') as fp:
        assets = yaml_load(fp, Loader=yaml_FullLoader);
        for command in assets:
            match Command(**command).name:
                case EnumAlgorithmNames.tarjan:
                    commands.append(CommandTarjan(**command));
                case EnumAlgorithmNames.tsp:
                    commands.append(CommandTsp(**command));
                case EnumAlgorithmNames.hirschberg:
                    commands.append(CommandHirschberg(**command));
    return commands;

# use lazy loaing to ensure that values only loaded (once) when used
CONFIG:   Config        = lazy(load_assets_config, path=PATH_ASSETS_CONFIG);
INFO:     Info          = lazy(lambda x: x.info, CONFIG);
OPTIONS:  AppOptions    = lazy(lambda x: x.options, CONFIG);
COMMANDS: List[Command] = lazy(create_commands, path=PATH_ASSETS_COMMANDS);