<?php

namespace Garradin\Plugin\Facturation;

use Garradin\DB;
use Garradin\UserException;
use Garradin\Utils;
use Garradin\Plugin\Facturation\Facture;

class Config
{
	protected $fields_types = null;
	protected $config = null;
	protected $modified = [];

	static protected $_instance = null;

	/**
	 * Singleton simple
	 * @return Config
	 */
	static public function getInstance()
	{
		return self::$_instance ?: self::$_instance = new Config;
	}

	static public function deleteInstance()
	{
		self::$_instance = null;
	}

	/**
	 * Empêche de cloner l'objet
	 * @return void
	 */
	private function __clone()
	{
	}

	public function __construct()
	{
		// Définition des types de données stockées
		$string = '';
		$bool = false;
		// $int = 0;
		// $float = 0.0;
		// $array = [];
		// $object = new \stdClass;

		$this->fields_types = [
			'siret_asso'			=>  $string,
			'validate_cp'			=>  $bool,
			'unique_client_name'	=>  $bool,
			'footer'				=>  $string
		];

		$db = DB::getInstance();

		$this->config = $db->getAssoc('SELECT cle, valeur FROM plugin_facturation_config ORDER BY cle;');

		foreach ($this->config as $key=>&$value)
		{
			if (!array_key_exists($key, $this->fields_types))
			{
				// Ancienne clé de config qui n'est plus utilisée
				continue;
			}

			if (is_array($this->fields_types[$key]))
			{
				$value = explode(',', $value);
			}
			else
			{
				settype($value, gettype($this->fields_types[$key]));
			}
		}
	}

	public function save()
    {
        if (empty($this->modified))
            return true;

        $values = [];
        $db = DB::getInstance();
        // $db->begin();

        foreach ($this->modified as $key=>$modified)
        {
            $value = $this->config[$key];
            var_dump($value);

            if (is_array($value))
            {
                $value = implode(',', $value);
            }
            elseif (is_object($value))
            {
                $value = (string) $value;
            }

            $db->exec('INSERT OR REPLACE INTO plugin_facturation_config (cle, valeur) VALUES (\''.$key.'\', \''.$value.'\');');
		}
		
        // $db->commit();

        $this->modified = [];

        return true;
	}
	
	public function set($key, $value)
	{
        if (!array_key_exists($key, $this->fields_types))
        {
            throw new \OutOfBoundsException('Ce champ est inconnu.');
        }

        if (is_array($this->fields_types[$key]))
        {
            $value = !empty($value) ? (array) $value : [];
        }
        elseif (is_int($this->fields_types[$key]))
        {
            $value = (int) $value;
        }
        elseif (is_float($this->fields_types[$key]))
        {
            $value = (float) $value;
        }
        elseif (is_bool($this->fields_types[$key]))
        {
            $value = (bool) $value;
        }
        elseif (is_string($this->fields_types[$key]))
        {
            $value = (string) $value;
        }

        // switch ($key)
        // {
        //     case 'siret_asso':
        //     {
        //         if (!trim($value))
        //         {
        //             throw new UserException('Le nom de l\'association ne peut rester vide.');
        //         }
        //         break;
		// 	}
		// 	case 'footer':
		// 		break;
        //     default:
        //         break;
        // }

        if (!isset($this->config[$key]) || $value !== $this->config[$key])
        {
            $this->config[$key] = $value;
            $this->modified[$key] = true;
        }

        return true;
	}

	public function get($key)
	{
        if (!array_key_exists($key, $this->fields_types))
        {
            throw new \OutOfBoundsException('Ce champ est inconnu.');
        }

        if (!array_key_exists($key, $this->config))
        {
            return null;
        }
        
        return $this->config[$key];
	}
	
    public function getFieldsTypes()
    {
        return $this->fields_types;
    }

    public function getConfig()
    {
        return $this->config;
    }
}